/*
 * SPEC: PJ2026-010403 API契约 draft-2026-06-17-r0; PJ2026-010401 Web工作台 draft-2026-06-17-r0
 * 职责: 访问控制、用户/session/workspace mutation 与 legacy compat read。GET workspace projection 不得隐式执行 terminal repair。
 */
import { createHash, createPublicKey, randomBytes, randomUUID, verify as verifySignature } from "node:crypto";

import { CLOUD_API_SERVICE_ID } from "../audit/index.mjs";
import {
  HWLAB_TOOL_IDS,
  createOpenFgaAuthorizer,
  openFgaObject
} from "./openfga-authorization.ts";
import { getHeader, readBody, sendJson, sendRedirect, truthyFlag } from "./server-http-utils.ts";
import { authLoginOtelTraceContext, emitAuthOtelSpan, newOtelSpanId, traceparentForOtelSpan } from "./otel-trace.ts";
import { createUserBillingClient } from "./user-billing-client.ts";

const SESSION_COOKIE = "hwlab_session";
const SESSION_MAX_AGE_SECONDS = 60 * 60 * 24;
const SESSION_COOKIE_SAMESITE = "Lax";
function buildSessionCookie(token, maxAge, { secure = false } = {}) {
  return `${SESSION_COOKIE}=${encodeURIComponent(token)}; ${sessionCookieAttributes(maxAge, { secure })}`;
}
function buildClearSessionCookie({ secure = false } = {}) {
  return `${SESSION_COOKIE}=; ${sessionCookieAttributes(0, { secure })}`;
}
function sessionCookieAttributes(maxAge, { secure = false } = {}) {
  return ["Path=/", "HttpOnly", secure ? "Secure" : "", `SameSite=${SESSION_COOKIE_SAMESITE}`, `Max-Age=${maxAge}`]
    .filter(Boolean)
    .join("; ");
}
const API_KEY_PREFIX = "hwl_live_";
const API_KEY_RANDOM_BYTES = 32;
const API_KEY_DEFAULT_NAME = "Default API key";
const ADMIN_BOOTSTRAP_API_KEY_NAME = "Master server admin API key";
const AUTH_METHOD_API_KEY = "api-key";
const AUTH_METHOD_WEB_SESSION = "web-session";
const AUTH_METHOD_LEGACY_LOCAL_SESSION = "legacy-local-session";
const AUTH_METHOD_USER_BILLING_API_KEY = "user-billing-api-key";
const AUTH_METHOD_USER_BILLING_SESSION = "user-billing-session";
const ACCESS_SCHEMA_STATEMENTS = Object.freeze([
  `CREATE TABLE IF NOT EXISTS users (
    id TEXT PRIMARY KEY,
    username TEXT NOT NULL UNIQUE,
    display_name TEXT NOT NULL DEFAULT '',
    role TEXT NOT NULL CHECK (role IN ('admin', 'user')),
    status TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'disabled')),
    password_hash TEXT,
    created_at TEXT NOT NULL,
    updated_at TEXT NOT NULL
  )`,
  `ALTER TABLE users ADD COLUMN IF NOT EXISTS auth_provider TEXT NOT NULL DEFAULT 'local'`,
  `ALTER TABLE users ADD COLUMN IF NOT EXISTS keycloak_issuer TEXT`,
  `ALTER TABLE users ADD COLUMN IF NOT EXISTS keycloak_sub TEXT`,
  `ALTER TABLE users ADD COLUMN IF NOT EXISTS email TEXT`,
  `ALTER TABLE users ADD COLUMN IF NOT EXISTS last_login_at TEXT`,
  `CREATE UNIQUE INDEX IF NOT EXISTS idx_users_keycloak_subject ON users(keycloak_issuer, keycloak_sub) WHERE keycloak_issuer IS NOT NULL AND keycloak_sub IS NOT NULL`,
  `CREATE TABLE IF NOT EXISTS api_keys (
    id TEXT PRIMARY KEY,
    user_id TEXT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    name TEXT NOT NULL DEFAULT 'Default API key',
    key_prefix TEXT NOT NULL,
    key_hash TEXT,
    display_secret TEXT,
    scopes_json TEXT NOT NULL DEFAULT '[]',
    status TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'revoked')),
    created_at TEXT NOT NULL,
    last_used_at TEXT,
    revoked_at TEXT
  )`,
  `CREATE INDEX IF NOT EXISTS idx_api_keys_user ON api_keys(user_id, status, created_at DESC)`,
  `CREATE UNIQUE INDEX IF NOT EXISTS idx_api_keys_prefix ON api_keys(key_prefix)`,
  `CREATE TABLE IF NOT EXISTS oidc_states (
    state TEXT PRIMARY KEY,
    nonce TEXT NOT NULL,
    return_to TEXT NOT NULL DEFAULT '',
    created_at TEXT NOT NULL,
    expires_at TEXT NOT NULL
  )`,
  `CREATE INDEX IF NOT EXISTS idx_oidc_states_expires ON oidc_states(expires_at)`,
  `CREATE TABLE IF NOT EXISTS user_sessions (
    id TEXT PRIMARY KEY,
    user_id TEXT NOT NULL REFERENCES users(id),
    session_token_hash TEXT NOT NULL UNIQUE,
    created_at TEXT NOT NULL,
    last_seen_at TEXT NOT NULL,
    expires_at TEXT NOT NULL,
    revoked_at TEXT
  )`,
  `CREATE TABLE IF NOT EXISTS agent_sessions (
    id TEXT PRIMARY KEY,
    project_id TEXT,
    agent_id TEXT NOT NULL,
    status TEXT NOT NULL DEFAULT 'pending',
    started_at TEXT,
    ended_at TEXT,
    owner_user_id TEXT REFERENCES users(id),
    conversation_id TEXT,
    thread_id TEXT,
    last_trace_id TEXT,
    session_json TEXT NOT NULL DEFAULT '{}',
    updated_at TEXT
  )`,
  `ALTER TABLE agent_sessions ADD COLUMN IF NOT EXISTS owner_user_id TEXT REFERENCES users(id)`,
  `ALTER TABLE agent_sessions ADD COLUMN IF NOT EXISTS conversation_id TEXT`,
  `ALTER TABLE agent_sessions ADD COLUMN IF NOT EXISTS thread_id TEXT`,
  `ALTER TABLE agent_sessions ADD COLUMN IF NOT EXISTS last_trace_id TEXT`,
  `ALTER TABLE agent_sessions ADD COLUMN IF NOT EXISTS session_json TEXT NOT NULL DEFAULT '{}'`,
  `ALTER TABLE agent_sessions ADD COLUMN IF NOT EXISTS updated_at TEXT`,
  `CREATE INDEX IF NOT EXISTS idx_agent_sessions_owner ON agent_sessions(owner_user_id)`,
  `CREATE INDEX IF NOT EXISTS idx_agent_sessions_conversation ON agent_sessions(conversation_id)`,
  `CREATE INDEX IF NOT EXISTS idx_agent_sessions_last_trace ON agent_sessions(last_trace_id)`,
  `CREATE INDEX IF NOT EXISTS idx_agent_sessions_active_updated ON agent_sessions(updated_at DESC, id DESC) WHERE status <> 'archived'`,
  `CREATE INDEX IF NOT EXISTS idx_agent_sessions_owner_active_updated ON agent_sessions(owner_user_id, updated_at DESC, id DESC) WHERE status <> 'archived'`,
  `CREATE TABLE IF NOT EXISTS account_workspaces (
    id TEXT PRIMARY KEY,
    owner_user_id TEXT NOT NULL REFERENCES users(id),
    project_id TEXT NOT NULL,
    name TEXT NOT NULL DEFAULT 'Default Workbench',
    status TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'archived')),
    is_default BOOLEAN NOT NULL DEFAULT true,
    selected_conversation_id TEXT,
    selected_agent_session_id TEXT,
    active_trace_id TEXT,
    provider_profile TEXT,
    workspace_json TEXT NOT NULL DEFAULT '{}',
    revision INTEGER NOT NULL DEFAULT 1,
    updated_by_session_id TEXT,
    updated_by_client TEXT,
    created_at TEXT NOT NULL,
    updated_at TEXT NOT NULL
  )`,
  `CREATE UNIQUE INDEX IF NOT EXISTS idx_account_workspaces_default ON account_workspaces(owner_user_id, project_id) WHERE is_default = TRUE AND status = 'active'`,
  `CREATE INDEX IF NOT EXISTS idx_account_workspaces_owner ON account_workspaces(owner_user_id, project_id, updated_at DESC)`,
  `CREATE TABLE IF NOT EXISTS access_config (
    key TEXT PRIMARY KEY,
    value TEXT NOT NULL,
    updated_at TEXT NOT NULL
  )`,
  `CREATE TABLE IF NOT EXISTS access_tuples (
    user_id TEXT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    relation TEXT NOT NULL,
    object TEXT NOT NULL,
    created_by_admin_id TEXT NOT NULL REFERENCES users(id),
    created_at TEXT NOT NULL,
    PRIMARY KEY (user_id, relation, object)
  )`,
  `CREATE INDEX IF NOT EXISTS idx_access_tuples_user ON access_tuples(user_id, object)`,
  `CREATE INDEX IF NOT EXISTS idx_access_tuples_object ON access_tuples(object, relation)`
]);

export function createAccessController(options = {}) {
  return new AccessController({
    ...options,
    store: options.store ?? accessStoreForRuntime(options.runtimeStore, options)
  });
}

function accessStoreForRuntime(runtimeStore, options = {}) {
  if (runtimeStore && typeof runtimeStore.query === "function") {
    return new PostgresAccessStore({ query: runtimeStore.query.bind(runtimeStore), now: options.now });
  }
  return new MemoryAccessStore({ now: options.now });
}

class AccessController {
  constructor({ store, env = process.env, fetchImpl = fetch, traceStore = null, codeAgentChatResults = null, now = () => new Date().toISOString(), required = truthyFlag(env.HWLAB_ACCESS_CONTROL_REQUIRED), openFgaAuthorizer = null, userBillingClient = null } = {}) {
    this.store = store;
    this.env = env;
    this.fetchImpl = fetchImpl;
    this.traceStore = traceStore;
    this.codeAgentChatResults = codeAgentChatResults;
    this.codeAgentEnv = env;
    this.now = now;
    this.required = required;
    this.openFga = openFgaAuthorizer ?? createOpenFgaAuthorizer({ env, fetchImpl, now, configStore: store });
    this.userBilling = userBillingClient ?? createUserBillingClient({ env, fetchImpl });
    this.bootstrapAttempted = false;
    if (typeof this.store?.ensureSchema === "function") {
      this.store.ensureSchema().catch((error) => {
        console.warn("access store schema warmup failed", error?.message ?? error);
      });
    }
  }

  configureCodeAgentWorkspaceContext({ env = null, fetchImpl = null, traceStore = null, codeAgentChatResults = null } = {}) {
    if (env) this.codeAgentEnv = env;
    if (fetchImpl) this.fetchImpl = fetchImpl;
    if (traceStore) this.traceStore = traceStore;
    if (codeAgentChatResults) this.codeAgentChatResults = codeAgentChatResults;
  }

  async handleAuthRoute(request, response, url) {
    try {
      await this.ensureBootstrap();
      if (url.pathname === "/auth/oidc/login" && (request.method === "GET" || request.method === "POST")) {
        await this.handleOidcLogin(request, response, url);
        return;
      }
      if (url.pathname === "/auth/oidc/callback" && request.method === "GET") {
        await this.handleOidcCallback(request, response, url);
        return;
      }
      if (request.method === "GET" && url.pathname === "/auth/session") {
        const payload = await this.sessionPayload(request);
        sendJson(response, payload.authenticated ? 200 : 401, payload);
        return;
      }

      if (request.method === "POST" && url.pathname === "/auth/register") {
        await this.handleUserBillingRegister(request, response);
        return;
      }

      if (request.method === "POST" && url.pathname === "/auth/login") {
        await this.handleLogin(request, response);
        return;
      }

      if (request.method === "POST" && url.pathname === "/auth/logout") {
        await this.handleLogout(request, response);
        return;
      }

      sendJson(response, 404, errorPayload("not_found", "Auth route is not implemented", 404));
    } catch (error) {
      sendAccessError(response, error);
    }
  }

  async handleUserRoute(request, response, url) {
    try {
      await this.ensureBootstrap();
      if (request.method === "GET" && url.pathname === "/v1/users/me") {
        const auth = await this.authenticate(request, { required: true });
        if (!auth.ok) return sendJson(response, auth.status, auth);
        return sendJson(response, 200, {
          authenticated: true,
          actor: publicActor(auth.actor),
          session: auth.session,
          authMethod: publicAuthMethod(auth.authMethod ?? (auth.apiKey ? AUTH_METHOD_API_KEY : AUTH_METHOD_WEB_SESSION)),
          contractVersion: "user-access-v1"
        });
      }

      if (url.pathname === "/v1/api-keys" || url.pathname === "/v1/api-keys/default" || url.pathname.startsWith("/v1/api-keys/")) {
        return this.handleApiKeyRoute(request, response, url);
      }

      sendJson(response, 404, errorPayload("not_found", "User route is not implemented", 404));
    } catch (error) {
      sendAccessError(response, error);
    }
  }

  async handleApiKeyRoute(request, response, url) {
    try {
      await this.ensureBootstrap();
      const auth = await this.authenticate(request, { required: true });
      if (!auth.ok) return sendJson(response, auth.status, auth);
      const path = url.pathname;
      if (request.method === "GET" && path === "/v1/api-keys") {
        const keys = await this.store.listApiKeysForUser?.(auth.actor.id) ?? [];
        return sendJson(response, 200, { contractVersion: "user-api-key-v1", keys: keys.map(publicApiKey), count: keys.length });
      }
      if (request.method === "GET" && path === "/v1/api-keys/default") {
        const existing = await this.store.findActiveDefaultApiKeyForUser?.(auth.actor.id) ?? null;
        if (existing) return sendJson(response, 200, { contractVersion: "user-api-key-v1", key: publicApiKey(existing), created: false });
        const issued = await this.store.ensureDefaultApiKeyForUser?.({ userId: auth.actor.id, now: this.now() }) ?? null;
        if (!issued?.key) return sendJson(response, 500, errorPayload("api_key_issue_failed", "Failed to issue default API key", 500));
        return sendJson(response, 201, { contractVersion: "user-api-key-v1", key: publicApiKey(issued.key, { includeSecret: true }), created: true });
      }
      if (request.method === "POST" && path === "/v1/api-keys") {
        const body = await jsonBody(request);
        const name = textOr(body.name, "").trim() || "User API key";
        const secret = generateApiKey();
        const prefix = apiKeyPrefixOf(secret);
        const hash = hashApiKey(secret);
        const created = await this.store.createApiKey?.({ userId: auth.actor.id, name, keyPrefix: prefix, keyHash: hash, displaySecret: secret, scopes: [], now: this.now() });
        if (!created) return sendJson(response, 500, errorPayload("api_key_create_failed", "Failed to create API key", 500));
        return sendJson(response, 201, { contractVersion: "user-api-key-v1", key: publicApiKey(created, { includeSecret: true }), created: true });
      }
      const regenerateMatch = path.match(/^\/v1\/api-keys\/([^/]+)\/regenerate$/u);
      if (request.method === "POST" && regenerateMatch) {
        const keyId = decodeURIComponent(regenerateMatch[1]);
        const existing = await this.store.findApiKeyById?.(keyId) ?? null;
        if (!existing || existing.userId !== auth.actor.id) return sendJson(response, 404, errorPayload("api_key_not_found", "API key was not found", 404));
        await this.store.revokeApiKey?.(keyId, this.now());
        const secret = generateApiKey();
        const prefix = apiKeyPrefixOf(secret);
        const hash = hashApiKey(secret);
        const fresh = await this.store.createApiKey?.({ userId: auth.actor.id, name: existing.name, keyPrefix: prefix, keyHash: hash, displaySecret: secret, scopes: existing.scopes, now: this.now() });
        return sendJson(response, 200, { contractVersion: "user-api-key-v1", key: publicApiKey(fresh, { includeSecret: true }), regenerated: true, oldKeyId: keyId });
      }
      const deleteMatch = path.match(/^\/v1\/api-keys\/([^/]+)$/u);
      if (request.method === "DELETE" && deleteMatch) {
        const keyId = decodeURIComponent(deleteMatch[1]);
        const existing = await this.store.findApiKeyById?.(keyId) ?? null;
        if (!existing || existing.userId !== auth.actor.id) return sendJson(response, 404, errorPayload("api_key_not_found", "API key was not found", 404));
        const revoked = await this.store.revokeApiKey?.(keyId, this.now());
        return sendJson(response, 200, { contractVersion: "user-api-key-v1", key: publicApiKey(revoked), revoked: true });
      }
      sendJson(response, 404, errorPayload("not_found", "API key route is not implemented", 404));
    } catch (error) {
      sendAccessError(response, error);
    }
  }

  async handleAccessStatusRoute(request, response, url) {
    try {
      await this.ensureBootstrap();
      if (request.method === "GET" && url.pathname === "/v1/access/status") {
        return sendJson(response, 200, await this.accessStatusPayload(request));
      }
      if (request.method === "GET" && url.pathname === "/v1/setup/status") {
        return sendJson(response, 200, await this.setupStatusPayload());
      }

      sendJson(response, 404, errorPayload("not_found", "Access status route is not implemented", 404));
    } catch (error) {
      sendAccessError(response, error);
    }
  }

  async handleSetupRoute(request, response, url) {
    try {
      await this.ensureBootstrap();
      if (request.method !== "POST" || url.pathname !== "/v1/setup/first-admin") {
        return sendJson(response, 404, errorPayload("not_found", "Setup route is not implemented", 404));
      }

      if (!(await this.setupRequired())) {
        return sendJson(response, 409, errorPayload("setup_already_completed", "First admin setup is closed because at least one user already exists", 409));
      }

      const body = await jsonBody(request);
      const password = requiredText(body.password, "password");
      const now = this.now();
      const user = await this.store.createFirstAdmin?.({
        id: this.env.HWLAB_BOOTSTRAP_ADMIN_ID || "usr_bootstrap_admin",
        username: textOr(body.username, this.env.HWLAB_BOOTSTRAP_ADMIN_USERNAME || "admin"),
        displayName: textOr(body.displayName, this.env.HWLAB_BOOTSTRAP_ADMIN_DISPLAY_NAME || "HWLAB Admin"),
        passwordHash: hashPassword(password),
        now
      }) ?? null;
      if (!user) {
        return sendJson(response, 409, errorPayload("setup_already_completed", "First admin setup is closed because at least one user already exists", 409));
      }
      const token = randomBytes(32).toString("base64url");
      const session = await this.store.createSession({
        userId: user.id,
        tokenHash: sha256(token),
        now,
        expiresAt: new Date(Date.parse(now) + SESSION_MAX_AGE_SECONDS * 1000).toISOString()
      });
      await this.store.ensureDefaultApiKeyForUser?.({ userId: user.id, now }) ?? null;
      setSessionCookie(response, token, SESSION_MAX_AGE_SECONDS, request, this.env);
      return sendJson(response, 201, {
        created: true,
        authenticated: true,
        actor: publicActor(user),
        session: publicSession({ ...session, user }),
        setupRequired: false,
        contractVersion: "user-access-v1"
      });
    } catch (error) {
      sendAccessError(response, error);
    }
  }

  async sessionPayload(request) {
    const auth = await this.authenticate(request, { required: false });
    const principal = canonicalPrincipalFromAuth(auth);
    const setupRequired = await this.setupRequired();
    if (!principal.authenticated) {
      return {
        ...principal,
        setupRequired,
        contractVersion: "canonical-principal-v1",
        error: { code: "auth_required", message: "Authentication is required", status: 401 }
      };
    }
    return sessionResponseFromAuth(auth, { setupRequired });
  }

  async accessStatusPayload(request) {
    const session = await this.sessionPayload(request);
    return {
      serviceId: CLOUD_API_SERVICE_ID,
      ...session,
      accessControlRequired: this.required,
      roles: ["admin", "user"],
      routes: accessRoutes()
    };
  }

  async setupStatusPayload() {
    return {
      serviceId: CLOUD_API_SERVICE_ID,
      contractVersion: "user-access-v1",
      accessControlRequired: this.required,
      setupRequired: await this.setupRequired(),
      bootstrapAdminConfigured: Boolean(textOr(this.env.HWLAB_BOOTSTRAP_ADMIN_PASSWORD_HASH, "") || textOr(this.env.HWLAB_BOOTSTRAP_ADMIN_PASSWORD, "")),
      routes: accessRoutes()
    };
  }

  async handleAdminRoute(request, response, url) {
    try {
      await this.ensureBootstrap();
      const auth = await this.authenticate(request, { required: true });
      if (!auth.ok) return sendJson(response, auth.status, auth);
      if (auth.actor.role !== "admin") {
        return sendJson(response, 403, errorPayload("admin_required", "Only admin users can call v0.2 admin APIs", 403));
      }

      if (url.pathname === "/v1/admin/access" || url.pathname.startsWith("/v1/admin/access/")) {
        return this.handleAdminAccessRoute(request, response, url, auth);
      }

    if (request.method === "POST" && url.pathname === "/v1/admin/users") {
      const body = await jsonBody(request);
      const user = await this.store.createUser({
        username: requiredText(body.username, "username"),
        displayName: textOr(body.displayName, body.username),
        role: body.role === "admin" ? "admin" : "user",
        status: body.status === "disabled" ? "disabled" : "active",
        passwordHash: hashPassword(requiredText(body.password, "password")),
        now: this.now()
      });
      await this.syncUserAdminTuple(user, auth.actor);
      return sendJson(response, 201, { created: true, user: redactedUser(user) });
    }

      sendJson(response, 404, errorPayload("not_found", "Admin route is not implemented", 404));
    } catch (error) {
      sendAccessError(response, error);
    }
  }

  async handleAdminAccessRoute(request, response, url, auth) {
    if (request.method === "GET" && url.pathname === "/v1/admin/access/summary") {
      const payload = await this.adminAccessSummary(auth.actor);
      return sendJson(response, 200, payload);
    }
    if (request.method === "GET" && url.pathname === "/v1/admin/access/users") {
      const users = await this.store.listUsers?.() ?? [];
      const summaries = [];
      for (const user of users) summaries.push(await this.userAccessSummary(user));
      return sendJson(response, 200, {
        contractVersion: "admin-access-v1",
        actor: publicActor(auth.actor),
        openfga: await this.openFga.describe(),
        users: summaries,
        count: summaries.length
      });
    }
    const userMatch = url.pathname.match(/^\/v1\/admin\/access\/users\/([^/]+)$/u);
    if (request.method === "GET" && userMatch) {
      const user = await this.store.getUserById(decodeURIComponent(userMatch[1]));
      if (!user) return sendJson(response, 404, errorPayload("user_not_found", "User was not found", 404));
      return sendJson(response, 200, await this.userAccessMatrixPayload(user, auth.actor));
    }
    if ((request.method === "PATCH" || request.method === "PUT") && userMatch) {
      const userId = decodeURIComponent(userMatch[1]);
      const body = await jsonBody(request);
      const existing = await this.store.getUserById(userId);
      if (!existing) return sendJson(response, 404, errorPayload("user_not_found", "User was not found", 404));
      const updated = await this.store.updateUserAccess?.({
        userId,
        role: body.role === "admin" ? "admin" : body.role === "user" ? "user" : existing.role,
        status: body.status === "disabled" ? "disabled" : body.status === "active" ? "active" : existing.status,
        now: this.now()
      }) ?? existing;
      await this.syncUserAdminTuple(updated, auth.actor);
      return sendJson(response, 200, { updated: true, user: redactedUser(updated), access: await this.userAccessMatrixPayload(updated, auth.actor) });
    }
    const toolMatch = url.pathname.match(/^\/v1\/admin\/access\/users\/([^/]+)\/tools\/([^/]+)\/can-use$/u);
    if (toolMatch && (request.method === "PUT" || request.method === "DELETE")) {
      const userId = decodeURIComponent(toolMatch[1]);
      const toolId = normalizeToolId(decodeURIComponent(toolMatch[2]));
      if (!HWLAB_TOOL_IDS.includes(toolId)) return sendJson(response, 400, errorPayload("invalid_tool_id", "Tool id is not supported", 400));
      const user = await this.store.getUserById(userId);
      if (!user) return sendJson(response, 404, errorPayload("user_not_found", "User was not found", 404));
      const object = openFgaObject("tool", toolId);
      const result = request.method === "PUT"
        ? await this.grantAccessTuple({ userId, relation: "can_use", object, admin: auth.actor })
        : await this.revokeAccessTuple({ userId, relation: "can_use", object });
      if (result.ok === false) return sendJson(response, result.status ?? 503, accessWriteErrorPayload(result));
      return sendJson(response, request.method === "PUT" ? 201 : 200, { ok: result.ok !== false, changed: true, result, access: await this.userAccessMatrixPayload(user, auth.actor) });
    }
    if (request.method === "POST" && url.pathname === "/v1/admin/access/check") {
      const body = await jsonBody(request);
      const userId = requiredText(body.userId ?? body.user ?? body.actorId, "userId");
      const relation = requiredText(body.relation, "relation");
      const object = requiredText(body.object, "object");
      const user = await this.store.getUserById(userId);
      if (!user) return sendJson(response, 404, errorPayload("user_not_found", "User was not found", 404));
      const authorization = await this.openFga.check({ actor: user, relation, object });
      return sendJson(response, 200, { contractVersion: "admin-access-v1", actor: publicActor(auth.actor), subject: publicActor(user), authorization });
    }
    return sendJson(response, 404, errorPayload("not_found", "Admin Access route is not implemented", 404));
  }

  async adminAccessSummary(actor) {
    const [users, tuples, openfga] = await Promise.all([
      this.store.listUsers?.() ?? [],
      this.store.listAccessTuples?.() ?? [],
      this.openFga.describe()
    ]);
    const toolTupleCount = tuples.filter((tuple) => tuple.object === openFgaObject("tool", "hwpod") || tuple.object.startsWith("tool:")).length;
    return {
      contractVersion: "admin-access-v1",
      actor: publicActor(actor),
      openfga,
      counts: {
        users: users.length,
        tuples: tuples.length,
        toolTuples: toolTupleCount
      },
      supported: {
        toolIds: HWLAB_TOOL_IDS
      }
    };
  }

  async userAccessSummary(user) {
    const tuples = await this.store.listAccessTuples?.({ userId: user.id }) ?? [];
    return {
      user: redactedUser(user),
      tupleCount: tuples.length,
      tools: await this.effectiveToolMatrix(user, tuples)
    };
  }

  async userAccessMatrixPayload(user, actor) {
    const [tuples, openfga] = await Promise.all([
      this.store.listAccessTuples?.({ userId: user.id }) ?? [],
      this.openFga.describe()
    ]);
    const tools = await this.effectiveToolMatrix(user, tuples);
    return { contractVersion: "admin-access-v1", actor: publicActor(actor), user: redactedUser(user), openfga, tools, tuples: tuples.map(publicAccessTuple) };
  }

  async effectiveToolMatrix(user, tuples = []) {
    const explicitTools = toolsFromTuples(tuples);
    const entries = {};
    for (const toolId of HWLAB_TOOL_IDS) {
      if (explicitTools[toolId]) {
        entries[toolId] = true;
        continue;
      }
      const authorization = await this.openFga.check({ actor: user, relation: "can_use", object: openFgaObject("tool", toolId) });
      entries[toolId] = authorization.allowed === true;
    }
    return entries;
  }

  async syncUserAdminTuple(user, admin) {
    if (!user) return null;
    const object = openFgaObject("system", "hwlab");
    return user.role === "admin"
      ? this.grantAccessTuple({ userId: user.id, relation: "admin", object, admin: admin ?? user })
      : this.revokeAccessTuple({ userId: user.id, relation: "admin", object });
  }

  async syncExistingAdminTuples() {
    const users = await this.store.listUsers?.() ?? [];
    for (const user of users.filter((item) => item.role === "admin")) await this.syncUserAdminTuple(user, user);
  }

  async grantAccessTuple({ userId, relation, object, admin }) {
    const result = await this.openFga.writeTuple({ userId, relation, object });
    if (result.ok !== false) await this.store.upsertAccessTuple?.({ userId, relation, object, createdByAdminId: admin?.id ?? userId, now: this.now() });
    return result;
  }

  async revokeAccessTuple({ userId, relation, object }) {
    const result = await this.openFga.deleteTuple({ userId, relation, object });
    if (result.ok !== false) await this.store.deleteAccessTuple?.({ userId, relation, object });
    return result;
  }

  async authenticate(request, { required = this.required } = {}) {
    await this.ensureBootstrap();
    const bearerToken = bearerTokenFromRequest(request);
    if (bearerToken && this.userBilling?.configured) {
      const delegated = await this.authenticateUserBillingToken(bearerToken);
      if (delegated.ok || !isApiKeySecret(bearerToken)) return delegated;
    }
    const apiKeySecret = apiKeyFromRequest(request);
    if (apiKeySecret) return this.authenticateApiKey(apiKeySecret);
    const token = sessionCookieFromRequest(request);
    if (!token) {
      return required ? errorPayload("auth_required", "Authentication is required", 401) : { ok: true, actor: null };
    }
    if (token.startsWith("hws_") && this.userBilling?.configured) {
      return this.authenticateUserBillingToken(token);
    }
    const session = await this.store.findSessionByTokenHash(sha256(token), this.now());
    if (!session?.user || session.user.status !== "active") {
      return errorPayload("auth_session_invalid", "Session is missing, expired, revoked, or disabled", 401);
    }
    await this.store.touchSession(session.id, this.now());
    return { ok: true, actor: session.user, session: publicSession(session), authMethod: AUTH_METHOD_WEB_SESSION };
  }

  async withAuthOtelDependencySpan(name, otelContext, parentSpanId, attributes, fn, classifyResult = null) {
    const spanId = otelContext ? newOtelSpanId() : "";
    const startedAtMs = Date.now();
    let statusCode = 0;
    let errorCode = "";
    try {
      const result = await fn();
      const classified = typeof classifyResult === "function" ? classifyResult(result) : null;
      statusCode = Number(classified?.statusCode ?? 0);
      errorCode = textOr(classified?.errorCode, "");
      return result;
    } catch (error) {
      statusCode = Number(error?.statusCode ?? error?.status ?? 503);
      errorCode = textOr(error?.code, `${name.replace(/[^A-Za-z0-9]+/g, "_")}_exception`);
      throw error;
    } finally {
      if (otelContext) {
        void emitAuthOtelSpan(name, otelContext, this.env, {
          spanId,
          parentSpanId: parentSpanId || otelContext.rootSpanId,
          kind: 3,
          startTimeMs: startedAtMs,
          endTimeMs: Date.now(),
          status: errorCode ? "error" : "ok",
          error: errorCode ? new Error(errorCode) : null,
          attributes: {
            ...attributes,
            ...(statusCode > 0 ? { "http.status_code": statusCode } : {}),
            ...(errorCode ? { "error.code": errorCode } : {}),
            "auth.trace_visible": true,
            "auth.values_redacted": true
          }
        });
      }
    }
  }

  async authenticateUserBillingToken(secret, otel = null) {
    const otelContext = otel?.context ?? null;
    const parentSpanId = textOr(otel?.parentSpanId, "");
    const result = await this.withAuthOtelDependencySpan("auth.user_billing.introspect", otelContext, parentSpanId, {
      "http.method": "POST",
      "http.route": "/internal/auth/introspect",
      "server.address": "hwlab-user-billing",
      "user_billing.service_id": "hwlab-user-billing",
      "user_billing.operation": "introspect"
    }, () => this.userBilling.introspect(secret), (item) => ({
      statusCode: Number(item?.status ?? 0),
      errorCode: item?.ok ? "" : textOr(item?.error?.code, "user_billing_introspect_failed")
    }));
    if (!result.ok) {
      return errorPayload(result.error?.code ?? "user_billing_introspect_failed", result.error?.message ?? "user-billing introspection failed", result.status ?? 503);
    }
    if (result.body?.active !== true || !result.body?.principal?.userId) {
      return errorPayload("api_key_invalid", "API key is missing or invalid", 401);
    }
    const principal = result.body.principal;
    const actor = userBillingActor(principal);
    const synced = await this.withAuthOtelDependencySpan("auth.local.upsert_external_user", otelContext, parentSpanId, {
      "db.system": "postgresql",
      "db.sql.table": "users",
      "auth.operation": "upsert_external_user"
    }, async () => await this.store.upsertExternalUser?.({ ...actor, authProvider: "user-billing", email: principal.email, now: this.now() }) ?? actor);
    const authMethod = principal.authType === "session" ? AUTH_METHOD_USER_BILLING_SESSION : AUTH_METHOD_USER_BILLING_API_KEY;
    return {
      ok: true,
      actor: synced,
      session: {
        id: principal.keyId || `ub_${sha256(`${principal.userId}:${authMethod}`).slice(0, 24)}`,
        userId: synced.id,
        keyPrefix: authMethod === AUTH_METHOD_USER_BILLING_API_KEY ? redactedTokenPrefix(secret) : null,
        name: "user-billing",
        createdAt: null,
        lastSeenAt: this.now(),
        expiresAt: null,
        revoked: false,
        tokenSource: authMethod,
        valuesRedacted: true
      },
      apiKey: authMethod === AUTH_METHOD_USER_BILLING_API_KEY ? { id: principal.keyId ?? null, keyPrefix: redactedTokenPrefix(secret), name: "user-billing", displaySecret: secret } : null,
      authMethod,
      userBilling: { active: true, token: secret, principal: { ...principal, keyId: principal.keyId ?? null }, valuesRedacted: true },
      ...canonicalPrincipalFromAuth({ actor: synced, authMethod })
    };
  }

  async authenticateApiKey(secret) {
    if (!isApiKeySecret(secret)) return errorPayload("api_key_invalid", "API key is missing or invalid", 401);
    const prefix = apiKeyPrefixOf(secret);
    const hash = hashApiKey(secret);
    const stored = await this.store.findApiKeyByHash(hash);
    if (!stored || stored.keyPrefix !== prefix) return errorPayload("api_key_invalid", "API key is missing or invalid", 401);
    const user = await this.store.getUserById(stored.userId);
    if (!user || user.status !== "active") return errorPayload("api_key_invalid", "API key is missing or invalid", 401);
    await this.store.touchApiKey(stored.id, this.now());
    return {
      ok: true,
      actor: user,
      session: { id: stored.id, userId: user.id, keyPrefix: stored.keyPrefix, name: stored.name, createdAt: stored.createdAt, lastSeenAt: this.now(), expiresAt: null, revoked: false, tokenSource: "api-key", valuesRedacted: true },
      apiKey: { id: stored.id, keyPrefix: stored.keyPrefix, name: stored.name },
      authMethod: AUTH_METHOD_API_KEY
    };
  }

  async handleOidcLogin(request, response, url) {
    const issuer = textOr(this.env.HWLAB_KEYCLOAK_ISSUER, "");
    const clientId = textOr(this.env.HWLAB_KEYCLOAK_CLIENT_ID, "");
    if (!issuer || !clientId) {
      return sendJson(response, 503, errorPayload("oidc_not_configured", "OIDC issuer / client are not configured on this cloud-api", 503));
    }
    const returnTo = safeReturnTo(url.searchParams.get("returnTo"));
    const state = randomBytes(24).toString("base64url");
    const nonce = randomBytes(24).toString("base64url");
    const authorizeUrl = new URL(`${issuer.replace(/\/$/, "")}/protocol/openid-connect/auth`);
    authorizeUrl.searchParams.set("response_type", "code");
    authorizeUrl.searchParams.set("client_id", clientId);
    authorizeUrl.searchParams.set("redirect_uri", this.oidcRedirectUri(request));
    authorizeUrl.searchParams.set("scope", "openid profile email");
    authorizeUrl.searchParams.set("state", state);
    authorizeUrl.searchParams.set("nonce", nonce);
    await this.store.upsertOidcState?.({
      state,
      nonce,
      returnTo,
      createdAt: this.now(),
      expiresAt: new Date(Date.parse(this.now()) + 600 * 1000).toISOString()
    });
    sendRedirect(response, authorizeUrl.toString(), { contractVersion: "oidc-v1" });
  }

  async handleOidcCallback(request, response, url) {
    const issuer = textOr(this.env.HWLAB_KEYCLOAK_ISSUER, "");
    const clientId = textOr(this.env.HWLAB_KEYCLOAK_CLIENT_ID, "");
    const clientSecret = textOr(this.env.HWLAB_KEYCLOAK_CLIENT_SECRET, "");
    if (!issuer || !clientId || !clientSecret) {
      return sendJson(response, 503, errorPayload("oidc_not_configured", "OIDC issuer / client are not configured on this cloud-api", 503));
    }
    const code = textOr(url.searchParams.get("code"), "");
    const state = textOr(url.searchParams.get("state"), "");
    const error = textOr(url.searchParams.get("error"), "");
    if (error) {
      return sendJson(response, 400, errorPayload("oidc_error", `OIDC provider returned error: ${error}`, 400));
    }
    if (!code || !state) {
      return sendJson(response, 400, errorPayload("oidc_missing_params", "code and state are required", 400));
    }
    const stored = await this.store.consumeOidcState?.(state) ?? null;
    if (!stored) {
      return sendJson(response, 400, errorPayload("oidc_invalid_state", "OIDC state not found or already consumed", 400));
    }
    if (new Date(stored.expiresAt).getTime() < Date.parse(this.now())) {
      return sendJson(response, 400, errorPayload("oidc_state_expired", "OIDC state expired; retry login", 400));
    }
    const tokenResponse = await this.exchangeOidcCode({ issuer, clientId, clientSecret, code, request });
    if (!tokenResponse.ok) {
      return sendJson(response, tokenResponse.status, errorPayload(tokenResponse.code, tokenResponse.message, tokenResponse.status));
    }
    const idToken = await verifyOidcIdToken(tokenResponse.idToken, { issuer, clientId, nonce: stored.nonce, now: this.now(), fetchImpl: this.fetchImpl });
    if (!idToken.ok) {
      return sendJson(response, 400, errorPayload(idToken.code, idToken.message, 400));
    }
    const userinfo = await this.fetchOidcUserinfo({ issuer, accessToken: tokenResponse.accessToken });
    if (!userinfo.ok) {
      return sendJson(response, userinfo.status, errorPayload(userinfo.code, userinfo.message, userinfo.status));
    }
    if (textOr(userinfo.claims.sub, "") !== textOr(idToken.claims.sub, "")) {
      return sendJson(response, 400, errorPayload("oidc_subject_mismatch", "OIDC userinfo subject does not match ID token", 400));
    }
    const actor = await this.upsertOidcUser({ issuer, claims: { ...idToken.claims, ...userinfo.claims, sub: idToken.claims.sub }, accessToken: tokenResponse.accessToken, refreshToken: tokenResponse.refreshToken });
    if (!actor) {
      return sendJson(response, 500, errorPayload("oidc_user_upsert_failed", "Failed to upsert OIDC user", 500));
    }
    const session = await this.issueWebSessionForActor(actor);
    setSessionCookie(response, session.token, SESSION_MAX_AGE_SECONDS, request, this.env);
    sendRedirect(response, stored.returnTo || "/", { contractVersion: "oidc-v1" });
  }

  oidcRedirectUri(request) {
    const publicBase = textOr(this.env.HWLAB_PUBLIC_ENDPOINT, "");
    if (publicBase) return `${publicBase.replace(/\/$/, "")}/auth/oidc/callback`;
    return `${textOr(this.env.HWLAB_RUNTIME_API_URL, "http://127.0.0.1:6667")}/auth/oidc/callback`;
  }

  async exchangeOidcCode({ issuer, clientId, clientSecret, code, request }) {
    const tokenUrl = `${issuer.replace(/\/$/, "")}/protocol/openid-connect/token`;
    const body = new URLSearchParams({
      grant_type: "authorization_code",
      code,
      client_id: clientId,
      client_secret: clientSecret,
      redirect_uri: this.oidcRedirectUri(request)
    });
    try {
      const response = await this.fetchImpl(tokenUrl, {
        method: "POST",
        headers: { accept: "application/json", "content-type": "application/x-www-form-urlencoded" },
        body: body.toString()
      });
      const text = await response.text();
      const json = parseJson(text, {});
      if (response.status >= 400 || !json.access_token || !json.id_token) {
        return { ok: false, status: response.status, code: "oidc_token_exchange_failed", message: textOr(json.error_description, text) };
      }
      return { ok: true, accessToken: json.access_token, refreshToken: json.refresh_token ?? null, idToken: json.id_token };
    } catch (error) {
      return { ok: false, status: 500, code: "oidc_token_exchange_error", message: error?.message ?? String(error) };
    }
  }

  async fetchOidcUserinfo({ issuer, accessToken }) {
    try {
      const userinfoUrl = `${issuer.replace(/\/$/, "")}/protocol/openid-connect/userinfo`;
      const response = await this.fetchImpl(userinfoUrl, { headers: { accept: "application/json", authorization: `Bearer ${accessToken}` } });
      const text = await response.text();
      const claims = parseJson(text, {});
      if (response.status >= 400 || !claims.sub) {
        return { ok: false, status: response.status, code: "oidc_userinfo_failed", message: textOr(claims.error_description, text) };
      }
      return { ok: true, claims };
    } catch (error) {
      return { ok: false, status: 500, code: "oidc_userinfo_error", message: error?.message ?? String(error) };
    }
  }

  async upsertOidcUser({ issuer, claims }) {
    const sub = textOr(claims.sub, "");
    if (!sub) return null;
    const username = textOr(claims.preferred_username, claims.email ?? sub);
    const email = textOr(claims.email, "");
    const displayName = textOr(claims.name, username);
    const existing = await this.store.findUserByKeycloakSubject?.(issuer, sub) ?? null;
    if (existing) {
      await this.store.updateUserOidcLogin?.({ userId: existing.id, email, lastLoginAt: this.now() });
      return existing;
    }
    return await this.store.createUserOidc?.({
      username,
      displayName,
      email,
      keycloakIssuer: issuer,
      keycloakSub: sub,
      role: "user",
      status: "active",
      now: this.now()
    });
  }

  async issueWebSessionForActor(actor) {
    const token = randomBytes(32).toString("base64url");
    const now = this.now();
    const session = await this.store.createSession({
      userId: actor.id,
      tokenHash: sha256(token),
      now,
      expiresAt: new Date(Date.parse(now) + SESSION_MAX_AGE_SECONDS * 1000).toISOString()
    });
    await this.store.ensureDefaultApiKeyForUser?.({ userId: actor.id, now });
    return { token, session };
  }

  async handleLogin(request, response) {
    const otelContext = authLoginOtelTraceContext({ traceparent: getHeader(request, "traceparent") });
    setAuthTraceHeaders(response, otelContext);
    const startedAtMs = Date.now();
    let httpStatus = 500;
    let outcome = "error";
    let errorCode = "";
    let dependencyAttributes = {};
    const mark = (status, nextOutcome, attributes = {}) => {
      httpStatus = Number(status ?? httpStatus);
      outcome = nextOutcome;
      dependencyAttributes = { ...dependencyAttributes, ...attributes };
    };
    try {
      const body = await jsonBody(request);
      const userBilling = await this.userBillingLogin(body, request, response, otelContext);
      if (userBilling?.handled) {
        mark(userBilling.status ?? 200, userBilling.outcome ?? "user_billing", userBillingTraceAttributes(userBilling));
        return;
      }
      const password = requiredText(body.password, "password");
      const username = textOr(body.username, "");
      if (!username) {
        if (userBilling?.retryable) {
          const status = userBilling.status ?? 503;
          mark(status, "user_billing_retryable", userBillingTraceAttributes(userBilling));
          return sendJson(response, status, userBillingDependencyErrorPayload(userBilling.result, "user_billing_login_failed", "user-billing login failed", status));
        }
        requiredText(body.username, "username");
      }
      const user = await this.store.findUserByUsername(username);
      if (user && (user.status !== "active" || !verifyPassword(user.passwordHash, password))) {
        mark(401, "invalid_credentials");
        return sendJson(response, 401, errorPayload("invalid_credentials", "Username or password is invalid", 401));
      }
      if (!user) {
        if (userBilling?.retryable) {
          const status = userBilling.status ?? 503;
          mark(status, "user_billing_retryable", userBillingTraceAttributes(userBilling));
          return sendJson(response, status, userBillingDependencyErrorPayload(userBilling.result, "user_billing_login_failed", "user-billing login failed", status));
        }
        mark(401, "invalid_credentials");
        return sendJson(response, 401, errorPayload("invalid_credentials", "Username or password is invalid", 401));
      }
      const { token, session } = await this.issueWebSessionForActor(user);
      setSessionCookie(response, token, SESSION_MAX_AGE_SECONDS, request, this.env);
      mark(200, "local_session");
      return sendJson(response, 200, sessionResponseFromAuth({ actor: user, session: publicSession({ ...session, user }), authMethod: AUTH_METHOD_WEB_SESSION }));
    } catch (error) {
      httpStatus = Number(error?.statusCode ?? httpStatus ?? 500);
      errorCode = textOr(error?.code, "auth_login_error");
      throw error;
    } finally {
      void emitAuthOtelSpan("auth.login", otelContext, this.env, {
        spanId: otelContext.rootSpanId,
        parentSpanId: otelContext.parentSpanId,
        kind: 2,
        startTimeMs: startedAtMs,
        endTimeMs: Date.now(),
        status: httpStatus >= 500 || errorCode ? "error" : "ok",
        error: errorCode ? new Error(errorCode) : null,
        attributes: {
          "http.method": "POST",
          "http.route": "/auth/login",
          "http.status_code": httpStatus,
          "auth.outcome": outcome,
          "auth.trace_visible": true,
          ...(errorCode ? { "error.code": errorCode } : {}),
          ...dependencyAttributes
        }
      });
    }
  }

  async handleUserBillingRegister(request, response) {
    if (!this.userBilling?.configured || typeof this.userBilling.register !== "function" || typeof this.userBilling.login !== "function") {
      return sendJson(response, 503, errorPayload("user_billing_not_configured", "HWLAB user-billing registration is not configured", 503));
    }
    const body = await jsonBody(request);
    const result = await this.userBilling.register({
      email: textOr(body.email, ""),
      username: textOr(body.username, ""),
      displayName: textOr(body.displayName, ""),
      password: requiredText(body.password, "password")
    });
    if (!result.ok) {
      return sendJson(response, result.status ?? 502, errorPayload(result.error?.code ?? "user_billing_register_failed", result.error?.message ?? "user-billing registration failed", result.status ?? 502));
    }
    const login = await this.issueUserBillingWebSession({ username: textOr(body.username, body.email), password: requiredText(body.password, "password") }, request, response);
    if (!login.ok) {
      return sendJson(response, login.status ?? 502, errorPayload(login.error?.code ?? "user_billing_login_failed", login.error?.message ?? "registration completed but login failed", login.status ?? 502));
    }
    return sendJson(response, 201, sessionResponseFromAuth(login.auth, {
      created: true,
      initialCredits: result.body?.initialCredits ?? null
    }));
  }

  async userBillingLogin(body, request, response, otelContext = null) {
    if (!this.userBilling?.configured || typeof this.userBilling.login !== "function") return { handled: false };
    const username = textOr(body.username ?? body.email, "");
    if (!username || !body.password) return { handled: false };
    const result = await this.issueUserBillingWebSession({ username, password: requiredText(body.password, "password") }, request, response, otelContext);
    if (!result.ok) {
      if (result.status === 401) return { handled: false, status: 401, outcome: "user_billing_invalid_credentials", result };
      if (isRetryableUserBillingResult(result)) return { handled: false, retryable: true, status: result.status ?? 503, outcome: "user_billing_retryable", result };
      return {
        handled: true,
        status: result.status ?? 502,
        outcome: "user_billing_failed",
        result,
        response: sendJson(response, result.status ?? 502, userBillingDependencyErrorPayload(result, "user_billing_login_failed", "user-billing login failed", result.status ?? 502))
      };
    }
    sendJson(response, 200, sessionResponseFromAuth(result.auth));
    return { handled: true, status: 200, outcome: "user_billing_session", result };
  }

  async issueUserBillingWebSession({ username, password }, request, response, otelContext = null) {
    const spanId = otelContext ? newOtelSpanId() : "";
    const startedAtMs = Date.now();
    let login = null;
    let thrownCode = "";
    try {
      login = await this.userBilling.login({ username, email: username, password }, otelContext ? { traceparent: traceparentForOtelSpan(otelContext, spanId) } : {});
      if (!login.ok || !login.body?.token) {
        return {
          ok: false,
          status: login.status,
          error: login.error,
          retryable: login.retryable,
          retryCount: login.retryCount,
          transientObserved: login.transientObserved,
          valuesRedacted: login.valuesRedacted
        };
      }
      const upstreamToken = textOr(login.body.token, "");
      const auth = await this.authenticateUserBillingToken(upstreamToken, otelContext ? { context: otelContext, parentSpanId: spanId } : null);
      if (!auth.ok) {
        thrownCode = textOr(auth?.error?.code, "user_billing_introspect_failed");
        return { ok: false, status: auth.status, error: auth.error };
      }
      const localSession = await this.withAuthOtelDependencySpan("auth.local.issue_web_session", otelContext, spanId, {
        "db.system": "postgresql",
        "db.sql.table": "sessions",
        "auth.operation": "issue_web_session"
      }, () => this.issueWebSessionForActor(auth.actor));
      const localAuth = {
        ok: true,
        actor: auth.actor,
        session: publicSession({ ...localSession.session, user: auth.actor }),
        authMethod: AUTH_METHOD_WEB_SESSION,
        userBilling: auth.userBilling ? { active: true, principal: auth.userBilling.principal, valuesRedacted: true } : undefined
      };
      setSessionCookie(response, localSession.token, SESSION_MAX_AGE_SECONDS, request, this.env);
      return { ok: true, auth: localAuth, token: localSession.token, upstreamTokenPrefix: redactedTokenPrefix(upstreamToken), status: login.status, retryCount: login.retryCount, transientObserved: login.transientObserved, valuesRedacted: true };
    } catch (error) {
      thrownCode = textOr(error?.code, "user_billing_login_exception");
      throw error;
    } finally {
      if (otelContext) {
        const status = Number(login?.status ?? (thrownCode ? 503 : 0));
        const errorCode = textOr(thrownCode || login?.error?.code, "");
        void emitAuthOtelSpan("auth.user_billing.login", otelContext, this.env, {
          spanId,
          parentSpanId: otelContext.rootSpanId,
          kind: 3,
          startTimeMs: startedAtMs,
          endTimeMs: Date.now(),
          status: login?.ok && !errorCode ? "ok" : "error",
          error: errorCode ? new Error(errorCode) : null,
          attributes: {
            "http.method": "POST",
            "http.route": "/v1/auth/login",
            "http.status_code": status,
            "server.address": "hwlab-user-billing",
            "user_billing.service_id": "hwlab-user-billing",
            "user_billing.retry_count": nonNegativeResultInteger(login?.retryCount),
            "user_billing.transient_observed": Boolean(login?.transientObserved),
            "user_billing.values_redacted": true,
            ...(errorCode ? { "error.code": errorCode } : {})
          }
        });
      }
    }
  }

  async handleLogout(request, response) {
    const token = sessionCookieFromRequest(request);
    if (token?.startsWith("hws_") && this.userBilling?.configured && typeof this.userBilling.logout === "function") {
      await this.userBilling.logout(token);
    } else if (token) {
      await this.store.revokeSessionByTokenHash(sha256(token), this.now());
    }
    clearSessionCookie(response, request, this.env);
    return sendJson(response, 200, { authenticated: false, loggedOut: true });
  }

  async codeAgentToolCapabilitiesForOwner(ownerUserId) {
    await this.ensureBootstrap();
    const actor = await this.store.getUserById(ownerUserId);
    if (!actor || actor.status !== "active") return defaultDeniedToolCapabilities();
    const entries = {};
    for (const toolId of HWLAB_TOOL_IDS) {
      const authorization = await this.openFga.check({ actor, relation: "can_use", object: openFgaObject("tool", toolId) });
      entries[toolId] = { allowed: authorization.allowed, authorization };
    }
    return { contractVersion: "admin-access-v1", actor: publicActor(actor), tools: entries, valuesRedacted: true };
  }

  async bootstrapAdminActor() {
    return await this.store.findUserByUsername(this.env.HWLAB_BOOTSTRAP_ADMIN_USERNAME || "admin")
      ?? await this.store.getUserById(this.env.HWLAB_BOOTSTRAP_ADMIN_ID || "usr_bootstrap_admin");
  }

  async ensureBootstrap() {
    if (this.bootstrapAttempted) return;
    this.bootstrapAttempted = true;
    await this.store.ensureSchema?.();
    const count = await this.store.countUsers();
    const passwordHash = textOr(this.env.HWLAB_BOOTSTRAP_ADMIN_PASSWORD_HASH, "") || (this.env.HWLAB_BOOTSTRAP_ADMIN_PASSWORD ? hashPassword(this.env.HWLAB_BOOTSTRAP_ADMIN_PASSWORD) : "");
    if (count > 0) {
      if (passwordHash) await this.store.syncBootstrapAdminPassword?.({
        id: this.env.HWLAB_BOOTSTRAP_ADMIN_ID || "usr_bootstrap_admin",
        username: this.env.HWLAB_BOOTSTRAP_ADMIN_USERNAME || "admin",
        passwordHash,
        now: this.now()
      });
      await this.syncExistingAdminTuples();
      await this.ensureBootstrapAdminApiKey();
      return;
    }
    if (!passwordHash) return;
    await this.store.createUser({
      id: this.env.HWLAB_BOOTSTRAP_ADMIN_ID || "usr_bootstrap_admin",
      username: this.env.HWLAB_BOOTSTRAP_ADMIN_USERNAME || "admin",
      displayName: this.env.HWLAB_BOOTSTRAP_ADMIN_DISPLAY_NAME || "HWLAB Admin",
      role: "admin",
      status: "active",
      passwordHash,
      now: this.now()
    });
    await this.syncExistingAdminTuples();
    await this.ensureBootstrapAdminApiKey();
  }

  async ensureBootstrapAdminApiKey() {
    const secret = textOr(this.env.HWLAB_BOOTSTRAP_ADMIN_API_KEY, "");
    if (!secret) return null;
    if (!isApiKeySecret(secret)) throw Object.assign(new Error("HWLAB_BOOTSTRAP_ADMIN_API_KEY must start with hwl_live_"), { statusCode: 500, code: "bootstrap_admin_api_key_invalid" });
    const actor = await this.bootstrapAdminActor();
    if (!actor || actor.role !== "admin") return null;
    const id = textOr(this.env.HWLAB_BOOTSTRAP_ADMIN_API_KEY_ID, "key_master_server_admin");
    const prefix = apiKeyPrefixOf(secret);
    const hash = hashApiKey(secret);
    const key = await this.store.createApiKey?.({
      id,
      userId: actor.id,
      name: ADMIN_BOOTSTRAP_API_KEY_NAME,
      keyPrefix: prefix,
      keyHash: hash,
      displaySecret: null,
      scopes: ["admin", "system:hwlab", "tool:*"],
      status: "active",
      now: this.now()
    }) ?? null;
    await this.syncUserAdminTuple(actor, actor);
    for (const toolId of HWLAB_TOOL_IDS) {
      await this.grantAccessTuple({ userId: actor.id, relation: "can_use", object: openFgaObject("tool", toolId), admin: actor });
    }
    return key;
  }

  async setupRequired() {
    return (await this.store.countUsers()) === 0;
  }

  async recordAgentSessionOwner(input = {}) {
    await this.ensureBootstrap();
    const ownerUserId = textOr(input.ownerUserId, "");
    const sessionId = agentSessionIdForRecord(input.sessionId, input.traceId);
    if (!ownerUserId || !sessionId) return null;
    return this.store.recordAgentSessionOwner?.({
      ...input,
      sessionId,
      ownerUserId,
      projectId: textOr(input.projectId, null),
      agentId: textOr(input.agentId, "hwlab-code-agent"),
      status: textOr(input.status, null),
      now: this.now()
    }) ?? null;
  }

  async getAgentSessionByTraceId(traceId) {
    await this.ensureBootstrap();
    const id = textOr(traceId, "");
    if (!/^trc_[A-Za-z0-9_.:-]+$/u.test(id)) return null;
    return this.store.getAgentSessionByTraceId?.(id) ?? null;
  }

  async getAgentSession(sessionId) {
    await this.ensureBootstrap();
    const id = safeAgentSessionId(sessionId);
    if (!id) return null;
    return this.store.getAgentSession?.(id) ?? null;
  }

}

class MemoryAccessStore {
  constructor({ now = () => new Date().toISOString() } = {}) {
    this.now = now;
    this.users = new Map();
    this.sessions = new Map();
    this.apiKeys = new Map();
    this.oidcStates = new Map();
    this.agentSessions = new Map();
    this.workspaces = new Map();
    this.accessConfig = new Map();
    this.accessTuples = new Map();
  }

  async countUsers() { return this.users.size; }
  async getUserById(id) { return this.users.get(id) ?? null; }
  async listUsers() { return [...this.users.values()].sort((a, b) => String(a.username).localeCompare(String(b.username))); }
  async findUserByUsername(username) { return [...this.users.values()].find((user) => user.username === username) ?? null; }
  async updateUserAccess(input = {}) {
    const user = this.users.get(textOr(input.userId, ""));
    if (!user) return null;
    const next = { ...user, role: input.role ?? user.role, status: input.status ?? user.status, updatedAt: input.now ?? this.now() };
    this.users.set(next.id, next);
    return next;
  }
  async syncBootstrapAdminPassword(input) {
    const existing = await this.findUserByUsername(input.username) ?? await this.getUserById(input.id);
    if (!existing) return null;
    const user = { ...existing, role: "admin", status: "active", passwordHash: input.passwordHash, updatedAt: input.now ?? this.now() };
    this.users.set(user.id, user);
    return user;
  }
  async createUser(input) {
    const now = input.now ?? this.now();
    const existing = await this.findUserByUsername(input.username);
    const user = { id: input.id ?? existing?.id ?? `usr_${randomUUID()}`, username: input.username, displayName: input.displayName ?? existing?.displayName ?? "", role: input.role, status: input.status ?? "active", passwordHash: input.passwordHash ?? existing?.passwordHash ?? null, authProvider: textOr(input.authProvider, existing?.authProvider ?? "local"), keycloakIssuer: textOr(input.keycloakIssuer, existing?.keycloakIssuer ?? "") || null, keycloakSub: textOr(input.keycloakSub, existing?.keycloakSub ?? "") || null, email: textOr(input.email, existing?.email ?? "") || null, lastLoginAt: textOr(input.lastLoginAt, existing?.lastLoginAt ?? "") || null, createdAt: existing?.createdAt ?? now, updatedAt: now };
    this.users.set(user.id, user);
    return user;
  }
  async upsertExternalUser(input = {}) {
    const now = input.now ?? this.now();
    const id = textOr(input.id, "");
    if (!id) return null;
    const existing = this.users.get(id) ?? null;
    const user = {
      id,
      username: textOr(input.username, existing?.username ?? id),
      displayName: textOr(input.displayName, existing?.displayName ?? input.username ?? id),
      role: input.role === "admin" ? "admin" : "user",
      status: input.status === "disabled" ? "disabled" : "active",
      passwordHash: existing?.passwordHash ?? null,
      authProvider: textOr(input.authProvider, existing?.authProvider ?? "external"),
      keycloakIssuer: existing?.keycloakIssuer ?? null,
      keycloakSub: existing?.keycloakSub ?? null,
      email: textOr(input.email, existing?.email ?? "") || null,
      lastLoginAt: now,
      createdAt: existing?.createdAt ?? now,
      updatedAt: now
    };
    this.users.set(user.id, user);
    return user;
  }
  async createFirstAdmin(input) {
    if (this.users.size > 0) return null;
    return this.createUser({ ...input, role: "admin", status: "active" });
  }
  async createSession(input) {
    const session = { id: `uss_${randomUUID()}`, userId: input.userId, tokenHash: input.tokenHash, createdAt: input.now, lastSeenAt: input.now, expiresAt: input.expiresAt, revokedAt: null };
    this.sessions.set(session.id, session);
    return session;
  }
  async findSessionByTokenHash(tokenHash, now) {
    const session = [...this.sessions.values()].find((item) => item.tokenHash === tokenHash && !item.revokedAt && item.expiresAt > now) ?? null;
    return session ? { ...session, user: this.users.get(session.userId) ?? null } : null;
  }
  async touchSession(id, now) { const session = this.sessions.get(id); if (session) session.lastSeenAt = now; }
  async revokeSessionByTokenHash(tokenHash, now) { for (const session of this.sessions.values()) if (session.tokenHash === tokenHash) session.revokedAt = now; }
  async createApiKey(input) {
    const now = input.now ?? this.now();
    const key = { id: input.id ?? `key_${randomUUID()}`, userId: input.userId, name: input.name ?? API_KEY_DEFAULT_NAME, keyPrefix: input.keyPrefix, keyHash: input.keyHash ?? null, displaySecret: input.displaySecret ?? null, scopes: Array.isArray(input.scopes) ? input.scopes : [], status: input.status ?? "active", createdAt: now, lastUsedAt: null, revokedAt: null };
    this.apiKeys.set(key.id, key);
    return key;
  }
  async findApiKeyById(id) { const key = this.apiKeys.get(textOr(id, "")); if (!key || key.status !== "active") return null; return key; }
  async findApiKeyByPrefix(prefix) { if (!prefix) return null; for (const key of this.apiKeys.values()) { if (key.status === "active" && key.keyPrefix === prefix) return key; } return null; }
  async findApiKeyByHash(hash) { if (!hash) return null; for (const key of this.apiKeys.values()) { if (key.status === "active" && key.keyHash === hash) return key; } return null; }
  async findApiKeyWithHashByPrefix(prefix) { if (!prefix) return null; for (const key of this.apiKeys.values()) { if (key.keyPrefix === prefix) return key; } return null; }
  async listApiKeysForUser(userId) { return [...this.apiKeys.values()].filter((key) => key.userId === userId).sort((a, b) => String(b.createdAt ?? "").localeCompare(String(a.createdAt ?? ""))); }
  async findActiveDefaultApiKeyForUser(userId) { for (const key of this.apiKeys.values()) { if (key.userId === userId && key.status === "active" && key.name === API_KEY_DEFAULT_NAME) return key; } return null; }
  async touchApiKey(id, now) { const key = this.apiKeys.get(id); if (key) key.lastUsedAt = now; }
  async revokeApiKey(id, now) { const key = this.apiKeys.get(id); if (key) { key.status = "revoked"; key.revokedAt = now; } return key ?? null; }
  async revokeApiKeysForUser(userId, now) { let count = 0; for (const key of this.apiKeys.values()) { if (key.userId === userId && key.status === "active") { key.status = "revoked"; key.revokedAt = now; count += 1; } } return count; }
  async upsertOidcState(input) { this.oidcStates.set(input.state, { state: input.state, nonce: input.nonce, returnTo: input.returnTo, createdAt: input.createdAt, expiresAt: input.expiresAt }); return { ok: true }; }
  async consumeOidcState(state) { const entry = this.oidcStates.get(state) ?? null; if (entry) this.oidcStates.delete(state); return entry; }
  async findUserByKeycloakSubject(issuer, sub) { for (const user of this.users.values()) { if (user.authProvider === "keycloak" && user.keycloakIssuer === issuer && user.keycloakSub === sub) return user; } return null; }
  async createUserOidc(input) { const id = `usr_${randomUUID()}`; const now = input.now ?? this.now(); const user = { id, username: input.username, displayName: input.displayName ?? input.username, role: input.role ?? "user", status: input.status ?? "active", passwordHash: null, authProvider: "keycloak", keycloakIssuer: input.keycloakIssuer, keycloakSub: input.keycloakSub, email: input.email, lastLoginAt: now, createdAt: now, updatedAt: now }; this.users.set(id, user); return user; }
  async updateUserOidcLogin(input) { const user = this.users.get(input.userId); if (!user) return null; this.users.set(input.userId, { ...user, email: input.email, lastLoginAt: input.lastLoginAt, updatedAt: this.now() }); return this.users.get(input.userId); }
  async ensureDefaultApiKeyForUser(input = {}) {
    const existing = await this.findActiveDefaultApiKeyForUser(input.userId);
    if (existing) return { key: existing, created: false };
    const secret = input.secret ?? generateApiKey();
    const prefix = apiKeyPrefixOf(secret);
    const hash = hashApiKey(secret);
    const key = await this.createApiKey({ userId: input.userId, name: API_KEY_DEFAULT_NAME, keyPrefix: prefix, keyHash: hash, displaySecret: secret, scopes: [], now: input.now });
    return { key, secret, created: true };
  }
  async getAccessConfig(key) { return this.accessConfig.get(textOr(key, "")) ?? ""; }
  async setAccessConfig(input = {}) { this.accessConfig.set(textOr(input.key, ""), textOr(input.value, "")); return { key: input.key, value: input.value, updatedAt: input.updatedAt ?? this.now() }; }
  async upsertAccessTuple(input = {}) {
    const tuple = { userId: input.userId, relation: input.relation, object: input.object, createdByAdminId: input.createdByAdminId, createdAt: input.now ?? this.now() };
    this.accessTuples.set(accessTupleKey(tuple), tuple);
    return tuple;
  }
  async deleteAccessTuple(input = {}) { this.accessTuples.delete(accessTupleKey(input)); }
  async listAccessTuples(input = {}) {
    return [...this.accessTuples.values()]
      .filter((tuple) => !input.userId || tuple.userId === input.userId)
      .filter((tuple) => !input.object || tuple.object === input.object)
      .sort((a, b) => `${a.object}:${a.relation}`.localeCompare(`${b.object}:${b.relation}`));
  }
  async recordAgentSessionOwner(input) {
    const now = input.now ?? this.now();
    const existing = this.agentSessions.get(input.sessionId) ?? null;
    const session = normalizeAgentSessionOwnerRecord(input, existing, now);
    this.agentSessions.set(session.id, session);
    return session;
  }
  async getAgentSession(id) { return this.agentSessions.get(id) ?? null; }
  async getAgentSessionByTraceId(traceId) {
    return [...this.agentSessions.values()]
      .filter((session) => session.lastTraceId === traceId || Boolean(agentSessionTraceEvidence(session, traceId)) || agentSessionContainsTraceId(session, traceId))
      .sort((a, b) => String(b.updatedAt ?? "").localeCompare(String(a.updatedAt ?? "")))[0] ?? null;
  }
  async listAgentSessionsForUser(input = {}) {
    const ownerUserId = textOr(input.ownerUserId, "");
    const role = textOr(input.actorRole, "user");
    const projectId = textOr(input.projectId, "");
    const conversationId = textOr(input.conversationId, "");
    const limit = boundedListLimit(input.limit);
    const offset = nonNegativeListOffset(input.offset);
    return [...this.agentSessions.values()]
      .filter((session) => input.ownerScoped === true || role !== "admin" ? session.ownerUserId === ownerUserId : true)
      .filter((session) => !projectId || session.projectId === projectId)
      .filter((session) => !conversationId || session.conversationId === conversationId)
      .filter((session) => input.includeArchived === true || session.status !== "archived")
      .sort((a, b) => String(b.updatedAt ?? "").localeCompare(String(a.updatedAt ?? "")) || String(b.id ?? "").localeCompare(String(a.id ?? "")))
      .slice(offset, offset + limit);
  }
  async archiveAgentConversation(input = {}) {
    const ownerUserId = textOr(input.ownerUserId, "");
    const role = textOr(input.actorRole, "user");
    const sessionId = textOr(input.sessionId, "");
    const conversationId = textOr(input.conversationId, "");
    const projectId = textOr(input.projectId, "");
    const now = input.now ?? this.now();
    if (!sessionId && !conversationId) return { count: 0 };
    let count = 0;
    for (const [id, session] of this.agentSessions.entries()) {
      if ((input.ownerScoped === true || role !== "admin") && session.ownerUserId !== ownerUserId) continue;
      if (sessionId && id !== sessionId) continue;
      if (conversationId && session.conversationId !== conversationId) continue;
      if (projectId && session.projectId !== projectId) continue;
      this.agentSessions.set(id, { ...session, status: "archived", endedAt: session.endedAt ?? now, updatedAt: now });
      count += 1;
    }
    return { count };
  }
  async getOrCreateDefaultWorkspace(input = {}) {
    const ownerUserId = textOr(input.ownerUserId, "");
    const projectId = textOr(input.projectId, "prj_hwpod_workbench");
    const existing = [...this.workspaces.values()].find((workspace) => workspace.ownerUserId === ownerUserId && workspace.projectId === projectId && workspace.isDefault === true && workspace.status === "active") ?? null;
    if (existing) return existing;
    const now = input.now ?? this.now();
    const workspace = normalizeWorkspaceRecord({
      id: defaultWorkspaceId(ownerUserId, projectId),
      ownerUserId,
      projectId,
      now
    }, null, now, { create: true });
    this.workspaces.set(workspace.id, workspace);
    return workspace;
  }
  async getWorkspaceForUser(input = {}) {
    const workspace = this.workspaces.get(textOr(input.workspaceId, "")) ?? null;
    if (!workspace) return null;
    if (input.actorRole === "admin" || workspace.ownerUserId === input.ownerUserId) return workspace;
    return null;
  }
  async updateWorkspace(input = {}) {
    const current = await this.getWorkspaceForUser(input);
    if (!current) return null;
    const now = input.now ?? this.now();
    const workspace = normalizeWorkspaceRecord(input, current, now, { replaceJson: input.replaceJson === true });
    this.workspaces.set(workspace.id, workspace);
    return workspace;
  }
}

class PostgresAccessStore extends MemoryAccessStore {
  constructor({ query, now } = {}) {
    super({ now });
    this.query = query;
    this.schemaReady = false;
    this.schemaReadyPromise = null;
  }

  async ensureSchema() {
    if (this.schemaReady) return;
    if (!this.schemaReadyPromise) {
      this.schemaReadyPromise = (async () => {
        for (const sql of ACCESS_SCHEMA_STATEMENTS) await this.query(sql, []);
        this.schemaReady = true;
      })();
    }
    try {
      await this.schemaReadyPromise;
    } finally {
      if (!this.schemaReady) this.schemaReadyPromise = null;
    }
  }

  async countUsers() { await this.ensureSchema(); const result = await this.query("SELECT COUNT(*)::int AS count FROM users", []); return Number(result.rows?.[0]?.count ?? 0); }
  async getUserById(id) { await this.ensureSchema(); const result = await this.query("SELECT id, username, display_name, role, status, password_hash, created_at, updated_at FROM users WHERE id = $1 LIMIT 1", [id]); return pgUser(result.rows?.[0]); }
  async listUsers() { await this.ensureSchema(); const result = await this.query("SELECT id, username, display_name, role, status, password_hash, created_at, updated_at FROM users ORDER BY username", []); return result.rows.map(pgUser); }
  async findUserByUsername(username) { await this.ensureSchema(); const result = await this.query("SELECT id, username, display_name, role, status, password_hash, created_at, updated_at FROM users WHERE username = $1 LIMIT 1", [username]); return pgUser(result.rows?.[0]); }
  async updateUserAccess(input = {}) { await this.ensureSchema(); const result = await this.query("UPDATE users SET role = $2, status = $3, updated_at = $4 WHERE id = $1 RETURNING id, username, display_name, role, status, password_hash, created_at, updated_at", [input.userId, input.role, input.status, input.now ?? this.now()]); return pgUser(result.rows?.[0]); }
  async syncBootstrapAdminPassword(input) {
    await this.ensureSchema();
    const result = await this.query("UPDATE users SET role = 'admin', status = 'active', password_hash = $3, updated_at = $4 WHERE username = $1 OR id = $2 RETURNING id, username, display_name, role, status, password_hash, created_at, updated_at", [input.username, input.id, input.passwordHash, input.now ?? this.now()]);
    return pgUser(result.rows?.[0]);
  }
  async createUser(input) {
    await this.ensureSchema();
    const now = input.now ?? this.now();
    const user = { id: input.id ?? `usr_${randomUUID()}`, username: input.username, displayName: input.displayName ?? "", role: input.role, status: input.status ?? "active", passwordHash: input.passwordHash ?? null, createdAt: now, updatedAt: now };
    const result = await this.query("INSERT INTO users (id, username, display_name, role, status, password_hash, created_at, updated_at) VALUES ($1,$2,$3,$4,$5,$6,$7,$8) ON CONFLICT (username) DO UPDATE SET display_name = EXCLUDED.display_name, role = EXCLUDED.role, status = EXCLUDED.status, password_hash = EXCLUDED.password_hash, updated_at = EXCLUDED.updated_at RETURNING id, username, display_name, role, status, password_hash, created_at, updated_at", [user.id, user.username, user.displayName, user.role, user.status, user.passwordHash, user.createdAt, user.updatedAt]);
    return pgUser(result.rows?.[0]);
  }
  async upsertExternalUser(input = {}) {
    await this.ensureSchema();
    const now = input.now ?? this.now();
    const id = textOr(input.id, "");
    if (!id) return null;
    const result = await this.query("INSERT INTO users (id, username, display_name, role, status, password_hash, auth_provider, email, last_login_at, created_at, updated_at) VALUES ($1,$2,$3,$4,$5,NULL,$6,$7,$8,$8,$8) ON CONFLICT (id) DO UPDATE SET username = EXCLUDED.username, display_name = EXCLUDED.display_name, role = EXCLUDED.role, status = EXCLUDED.status, auth_provider = EXCLUDED.auth_provider, email = EXCLUDED.email, last_login_at = EXCLUDED.last_login_at, updated_at = EXCLUDED.updated_at RETURNING id, username, display_name, role, status, password_hash, auth_provider, keycloak_issuer, keycloak_sub, email, last_login_at, created_at, updated_at", [
      id,
      textOr(input.username, id),
      textOr(input.displayName, input.username ?? id),
      input.role === "admin" ? "admin" : "user",
      input.status === "disabled" ? "disabled" : "active",
      textOr(input.authProvider, "external"),
      textOr(input.email, "") || null,
      now
    ]);
    return pgUserWithOIDC(result.rows?.[0]);
  }
  async createFirstAdmin(input) {
    await this.ensureSchema();
    const now = input.now ?? this.now();
    const user = { id: input.id, username: input.username, displayName: input.displayName ?? "", role: "admin", status: "active", passwordHash: input.passwordHash ?? null, createdAt: now, updatedAt: now };
    const result = await this.query("INSERT INTO users (id, username, display_name, role, status, password_hash, created_at, updated_at) SELECT $1,$2,$3,$4,$5,$6,$7,$8 WHERE NOT EXISTS (SELECT 1 FROM users) ON CONFLICT DO NOTHING RETURNING id, username, display_name, role, status, password_hash, created_at, updated_at", [user.id, user.username, user.displayName, user.role, user.status, user.passwordHash, user.createdAt, user.updatedAt]);
    return pgUser(result.rows?.[0]);
  }
  async createSession(input) { await this.ensureSchema(); const session = await super.createSession(input); await this.query("INSERT INTO user_sessions (id, user_id, session_token_hash, created_at, last_seen_at, expires_at, revoked_at) VALUES ($1,$2,$3,$4,$5,$6,$7)", [session.id, session.userId, session.tokenHash, session.createdAt, session.lastSeenAt, session.expiresAt, session.revokedAt]); return session; }
  async findSessionByTokenHash(tokenHash, now) { await this.ensureSchema(); const result = await this.query("SELECT s.id, s.user_id, s.session_token_hash, s.created_at, s.last_seen_at, s.expires_at, s.revoked_at, u.username, u.display_name, u.role, u.status, u.password_hash, u.created_at AS user_created_at, u.updated_at AS user_updated_at FROM user_sessions s JOIN users u ON u.id = s.user_id WHERE s.session_token_hash = $1 AND s.revoked_at IS NULL AND s.expires_at > $2 LIMIT 1", [tokenHash, now]); const row = result.rows?.[0]; return row ? pgSession(row) : null; }
  async touchSession(id, now) { await this.ensureSchema(); await this.query("UPDATE user_sessions SET last_seen_at = $2 WHERE id = $1", [id, now]); }
  async revokeSessionByTokenHash(tokenHash, now) { await this.ensureSchema(); await this.query("UPDATE user_sessions SET revoked_at = $2 WHERE session_token_hash = $1", [tokenHash, now]); }
  async createApiKey(input) {
    await this.ensureSchema();
    const key = await super.createApiKey(input);
    await this.query("INSERT INTO api_keys (id, user_id, name, key_prefix, key_hash, display_secret, scopes_json, status, created_at, last_used_at, revoked_at) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11) ON CONFLICT (id) DO UPDATE SET name = EXCLUDED.name, key_prefix = EXCLUDED.key_prefix, key_hash = EXCLUDED.key_hash, display_secret = EXCLUDED.display_secret, scopes_json = EXCLUDED.scopes_json, status = EXCLUDED.status, last_used_at = EXCLUDED.last_used_at, revoked_at = EXCLUDED.revoked_at", [key.id, key.userId, key.name, key.keyPrefix, key.keyHash, key.displaySecret, stableJson(key.scopes ?? []), key.status, key.createdAt, key.lastUsedAt, key.revokedAt]);
    return key;
  }
  async findApiKeyById(id) { await this.ensureSchema(); const result = await this.query("SELECT id, user_id, name, key_prefix, key_hash, display_secret, scopes_json, status, created_at, last_used_at, revoked_at FROM api_keys WHERE id = $1 AND status = 'active' LIMIT 1", [id]); return pgApiKey(result.rows?.[0]); }
  async findApiKeyByPrefix(prefix) { await this.ensureSchema(); if (!prefix) return null; const result = await this.query("SELECT id, user_id, name, key_prefix, key_hash, display_secret, scopes_json, status, created_at, last_used_at, revoked_at FROM api_keys WHERE key_prefix = $1 AND status = 'active' LIMIT 1", [prefix]); return pgApiKey(result.rows?.[0]); }
  async findApiKeyByHash(hash) { await this.ensureSchema(); if (!hash) return null; const result = await this.query("SELECT id, user_id, name, key_prefix, key_hash, display_secret, scopes_json, status, created_at, last_used_at, revoked_at FROM api_keys WHERE key_hash = $1 AND status = 'active' LIMIT 1", [hash]); return pgApiKey(result.rows?.[0]); }
  async findApiKeyWithHashByPrefix(prefix) { await this.ensureSchema(); if (!prefix) return null; const result = await this.query("SELECT id, user_id, name, key_prefix, key_hash, display_secret, scopes_json, status, created_at, last_used_at, revoked_at FROM api_keys WHERE key_prefix = $1 LIMIT 1", [prefix]); return pgApiKey(result.rows?.[0]); }
  async listApiKeysForUser(userId) { await this.ensureSchema(); const result = await this.query("SELECT id, user_id, name, key_prefix, key_hash, display_secret, scopes_json, status, created_at, last_used_at, revoked_at FROM api_keys WHERE user_id = $1 ORDER BY created_at DESC", [userId]); return result.rows.map(pgApiKey); }
  async findActiveDefaultApiKeyForUser(userId) { await this.ensureSchema(); const result = await this.query("SELECT id, user_id, name, key_prefix, key_hash, display_secret, scopes_json, status, created_at, last_used_at, revoked_at FROM api_keys WHERE user_id = $1 AND name = $2 AND status = 'active' LIMIT 1", [userId, API_KEY_DEFAULT_NAME]); return pgApiKey(result.rows?.[0]); }
  async touchApiKey(id, now) { await this.ensureSchema(); await this.query("UPDATE api_keys SET last_used_at = $2 WHERE id = $1", [id, now]); }
  async revokeApiKey(id, now) { await this.ensureSchema(); const result = await this.query("UPDATE api_keys SET status = 'revoked', revoked_at = $2 WHERE id = $1 RETURNING id, user_id, name, key_prefix, key_hash, display_secret, scopes_json, status, created_at, last_used_at, revoked_at", [id, now]); return pgApiKey(result.rows?.[0]); }
  async revokeApiKeysForUser(userId, now) { await this.ensureSchema(); const result = await this.query("UPDATE api_keys SET status = 'revoked', revoked_at = $2 WHERE user_id = $1 AND status = 'active' RETURNING id", [userId, now]); return result.rows?.length ?? 0; }
  async upsertOidcState(input) { await this.ensureSchema(); await this.query("INSERT INTO oidc_states (state, nonce, return_to, created_at, expires_at) VALUES ($1,$2,$3,$4,$5) ON CONFLICT (state) DO UPDATE SET nonce = EXCLUDED.nonce, return_to = EXCLUDED.return_to, created_at = EXCLUDED.created_at, expires_at = EXCLUDED.expires_at", [input.state, input.nonce, input.returnTo ?? "", input.createdAt, input.expiresAt]); return { ok: true }; }
  async consumeOidcState(state) { await this.ensureSchema(); const result = await this.query("DELETE FROM oidc_states WHERE state = $1 RETURNING state, nonce, return_to, created_at, expires_at", [state]); const row = result.rows?.[0]; if (!row) return null; return { state: row.state, nonce: row.nonce, returnTo: row.return_to, createdAt: row.created_at, expiresAt: row.expires_at }; }
  async findUserByKeycloakSubject(issuer, sub) { await this.ensureSchema(); const result = await this.query("SELECT id, username, display_name, role, status, password_hash, auth_provider, keycloak_issuer, keycloak_sub, email, last_login_at, created_at, updated_at FROM users WHERE keycloak_issuer = $1 AND keycloak_sub = $2 LIMIT 1", [issuer, sub]); return pgUserWithOIDC(result.rows?.[0]); }
  async createUserOidc(input) { await this.ensureSchema(); const id = `usr_${randomUUID()}`; const now = input.now ?? this.now(); const result = await this.query("INSERT INTO users (id, username, display_name, role, status, password_hash, auth_provider, keycloak_issuer, keycloak_sub, email, last_login_at, created_at, updated_at) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13) ON CONFLICT (username) DO UPDATE SET display_name = EXCLUDED.display_name, role = EXCLUDED.role, status = EXCLUDED.status, auth_provider = EXCLUDED.auth_provider, keycloak_issuer = EXCLUDED.keycloak_issuer, keycloak_sub = EXCLUDED.keycloak_sub, email = EXCLUDED.email, last_login_at = EXCLUDED.last_login_at, updated_at = EXCLUDED.updated_at RETURNING id, username, display_name, role, status, password_hash, auth_provider, keycloak_issuer, keycloak_sub, email, last_login_at, created_at, updated_at", [id, input.username, input.displayName ?? input.username, input.role ?? "user", input.status ?? "active", null, "keycloak", input.keycloakIssuer, input.keycloakSub, input.email ?? null, now, now, now]); return pgUserWithOIDC(result.rows?.[0]); }
  async updateUserOidcLogin(input) { await this.ensureSchema(); const result = await this.query("UPDATE users SET email = COALESCE($2, email), last_login_at = $3, updated_at = $3 WHERE id = $1 RETURNING id, username, display_name, role, status, password_hash, auth_provider, keycloak_issuer, keycloak_sub, email, last_login_at, created_at, updated_at", [input.userId, input.email ?? null, input.lastLoginAt]); return pgUserWithOIDC(result.rows?.[0]); }
  async getAccessConfig(key) { await this.ensureSchema(); const result = await this.query("SELECT value FROM access_config WHERE key = $1 LIMIT 1", [key]); return textOr(result.rows?.[0]?.value, ""); }
  async setAccessConfig(input = {}) { await this.ensureSchema(); await this.query("INSERT INTO access_config (key, value, updated_at) VALUES ($1,$2,$3) ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value, updated_at = EXCLUDED.updated_at", [input.key, input.value, input.updatedAt ?? this.now()]); return { key: input.key, value: input.value, updatedAt: input.updatedAt ?? this.now() }; }
  async upsertAccessTuple(input = {}) { await this.ensureSchema(); const tuple = { userId: input.userId, relation: input.relation, object: input.object, createdByAdminId: input.createdByAdminId, createdAt: input.now ?? this.now() }; await this.query("INSERT INTO access_tuples (user_id, relation, object, created_by_admin_id, created_at) VALUES ($1,$2,$3,$4,$5) ON CONFLICT (user_id, relation, object) DO UPDATE SET created_by_admin_id = EXCLUDED.created_by_admin_id, created_at = EXCLUDED.created_at", [tuple.userId, tuple.relation, tuple.object, tuple.createdByAdminId, tuple.createdAt]); return tuple; }
  async deleteAccessTuple(input = {}) { await this.ensureSchema(); await this.query("DELETE FROM access_tuples WHERE user_id = $1 AND relation = $2 AND object = $3", [input.userId, input.relation, input.object]); }
  async listAccessTuples(input = {}) { await this.ensureSchema(); const params = []; const clauses = []; if (input.userId) { params.push(input.userId); clauses.push(`user_id = $${params.length}`); } if (input.object) { params.push(input.object); clauses.push(`object = $${params.length}`); } const sql = `SELECT user_id, relation, object, created_by_admin_id, created_at FROM access_tuples ${clauses.length ? `WHERE ${clauses.join(" AND ")}` : ""} ORDER BY object, relation, user_id`; const result = await this.query(sql, params); return result.rows.map(pgAccessTuple); }
  async recordAgentSessionOwner(input) {
    await this.ensureSchema();
    const now = input.now ?? this.now();
    const existing = input.sessionId ? await this.getAgentSession(input.sessionId) : null;
    const session = normalizeAgentSessionOwnerRecord(input, existing, now);
    const result = await this.query("INSERT INTO agent_sessions (id, project_id, agent_id, status, started_at, ended_at, owner_user_id, conversation_id, thread_id, last_trace_id, session_json, updated_at) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12) ON CONFLICT (id) DO UPDATE SET project_id = COALESCE(EXCLUDED.project_id, agent_sessions.project_id), agent_id = EXCLUDED.agent_id, status = EXCLUDED.status, ended_at = EXCLUDED.ended_at, owner_user_id = EXCLUDED.owner_user_id, conversation_id = COALESCE(EXCLUDED.conversation_id, agent_sessions.conversation_id), thread_id = COALESCE(EXCLUDED.thread_id, agent_sessions.thread_id), last_trace_id = COALESCE(EXCLUDED.last_trace_id, agent_sessions.last_trace_id), session_json = EXCLUDED.session_json, updated_at = EXCLUDED.updated_at RETURNING id, project_id, agent_id, status, started_at, ended_at, owner_user_id, conversation_id, thread_id, last_trace_id, session_json, updated_at", [session.id, session.projectId, session.agentId, session.status, session.startedAt, session.endedAt, session.ownerUserId, session.conversationId, session.threadId, session.lastTraceId, stableJson(session.session ?? {}), session.updatedAt]);
    return pgAgentSession(result.rows?.[0]);
  }
  async getAgentSession(id) { await this.ensureSchema(); const result = await this.query("SELECT id, project_id, agent_id, status, started_at, ended_at, owner_user_id, conversation_id, thread_id, last_trace_id, session_json, updated_at FROM agent_sessions WHERE id = $1 LIMIT 1", [id]); return pgAgentSession(result.rows?.[0]); }
  async getAgentSessionByTraceId(traceId) {
    await this.ensureSchema();
    const exact = await this.query("SELECT id, project_id, agent_id, status, started_at, ended_at, owner_user_id, conversation_id, thread_id, last_trace_id, session_json, updated_at FROM agent_sessions WHERE last_trace_id = $1 ORDER BY updated_at DESC NULLS LAST LIMIT 1", [traceId]);
    const exactSession = pgAgentSession(exact.rows?.[0]);
    if (exactSession) return exactSession;
    const fallback = await this.query("SELECT id, project_id, agent_id, status, started_at, ended_at, owner_user_id, conversation_id, thread_id, last_trace_id, session_json, updated_at FROM agent_sessions WHERE session_json LIKE $1 ORDER BY updated_at DESC NULLS LAST LIMIT 1", [`%${traceId}%`]);
    return pgAgentSession(fallback.rows?.[0]);
  }
  async listAgentSessionsForUser(input = {}) {
    await this.ensureSchema();
    const role = textOr(input.actorRole, "user");
    const ownerUserId = textOr(input.ownerUserId, "");
    const projectId = textOr(input.projectId, "");
    const conversationId = textOr(input.conversationId, "");
    const limit = boundedListLimit(input.limit);
    const offset = nonNegativeListOffset(input.offset);
    const clauses = [];
    const params = [];
    if (input.ownerScoped === true || role !== "admin") {
      params.push(ownerUserId);
      clauses.push(`owner_user_id = $${params.length}`);
    }
    if (projectId) {
      params.push(projectId);
      clauses.push(`project_id = $${params.length}`);
    }
    if (conversationId) {
      params.push(conversationId);
      clauses.push(`conversation_id = $${params.length}`);
    }
    if (input.includeArchived !== true) clauses.push("status <> 'archived'");
    params.push(limit);
    const limitParam = params.length;
    params.push(offset);
    const offsetParam = params.length;
    const sql = `SELECT id, project_id, agent_id, status, started_at, ended_at, owner_user_id, conversation_id, thread_id, last_trace_id, session_json, updated_at FROM agent_sessions ${clauses.length ? `WHERE ${clauses.join(" AND ")}` : ""} ORDER BY updated_at DESC NULLS LAST, id DESC LIMIT $${limitParam} OFFSET $${offsetParam}`;
    const result = await this.query(sql, params);
    return result.rows.map(pgAgentSession);
  }
  async archiveAgentConversation(input = {}) {
    await this.ensureSchema();
    const role = textOr(input.actorRole, "user");
    const ownerUserId = textOr(input.ownerUserId, "");
    const sessionId = textOr(input.sessionId, "");
    const conversationId = textOr(input.conversationId, "");
    const projectId = textOr(input.projectId, "");
    const now = input.now ?? this.now();
    if (!sessionId && !conversationId) return { count: 0 };
    const clauses = [];
    const params = [];
    if (sessionId) {
      params.push(sessionId);
      clauses.push(`id = $${params.length}`);
    }
    if (conversationId) {
      params.push(conversationId);
      clauses.push(`conversation_id = $${params.length}`);
    }
    if (input.ownerScoped === true || role !== "admin") {
      params.push(ownerUserId);
      clauses.push(`owner_user_id = $${params.length}`);
    }
    if (projectId) {
      params.push(projectId);
      clauses.push(`project_id = $${params.length}`);
    }
    params.push(now);
    const sql = `UPDATE agent_sessions SET status = 'archived', ended_at = COALESCE(ended_at, $${params.length}), updated_at = $${params.length} WHERE ${clauses.join(" AND ")} RETURNING id`;
    const result = await this.query(sql, params);
    return { count: result.rows?.length ?? 0 };
  }
  async getOrCreateDefaultWorkspace(input = {}) {
    await this.ensureSchema();
    const ownerUserId = textOr(input.ownerUserId, "");
    const projectId = textOr(input.projectId, "prj_hwpod_workbench");
    const found = await this.query("SELECT * FROM account_workspaces WHERE owner_user_id = $1 AND project_id = $2 AND is_default = TRUE AND status = 'active' ORDER BY updated_at DESC LIMIT 1", [ownerUserId, projectId]);
    const existing = pgWorkspace(found.rows?.[0]);
    if (existing) return existing;
    const now = input.now ?? this.now();
    const workspace = normalizeWorkspaceRecord({ id: defaultWorkspaceId(ownerUserId, projectId), ownerUserId, projectId, now }, null, now, { create: true });
    const result = await this.query("INSERT INTO account_workspaces (id, owner_user_id, project_id, name, status, is_default, selected_conversation_id, selected_agent_session_id, active_trace_id, provider_profile, workspace_json, revision, updated_by_session_id, updated_by_client, created_at, updated_at) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16) ON CONFLICT (id) DO UPDATE SET updated_at = account_workspaces.updated_at RETURNING *", workspaceParams(workspace));
    return pgWorkspace(result.rows?.[0]) ?? workspace;
  }
  async getWorkspaceForUser(input = {}) {
    await this.ensureSchema();
    const workspaceId = textOr(input.workspaceId, "");
    const params = [workspaceId];
    let sql = "SELECT * FROM account_workspaces WHERE id = $1";
    if (input.actorRole !== "admin") {
      params.push(textOr(input.ownerUserId, ""));
      sql += " AND owner_user_id = $2";
    }
    sql += " LIMIT 1";
    const result = await this.query(sql, params);
    return pgWorkspace(result.rows?.[0]);
  }
  async updateWorkspace(input = {}) {
    await this.ensureSchema();
    const current = await this.getWorkspaceForUser(input);
    if (!current) return null;
    const now = input.now ?? this.now();
    const workspace = normalizeWorkspaceRecord(input, current, now, { replaceJson: input.replaceJson === true });
    const result = await this.query("UPDATE account_workspaces SET project_id=$3, name=$4, status=$5, is_default=$6, selected_conversation_id=$7, selected_agent_session_id=$8, active_trace_id=$9, provider_profile=$10, workspace_json=$11, revision=$12, updated_by_session_id=$13, updated_by_client=$14, created_at=$15, updated_at=$16 WHERE id=$1 AND ($17::text = 'admin' OR owner_user_id=$2) RETURNING *", [...workspaceParams(workspace), textOr(input.actorRole, "user")]);
    return pgWorkspace(result.rows?.[0]);
  }
}

function requiredText(value, field) { const text = textOr(value, ""); if (!text) throw Object.assign(new Error(`${field} is required`), { statusCode: 400, code: "invalid_params" }); return text; }
function textOr(value, fallback) { const text = String(value ?? "").trim(); return text || fallback; }
function normalizeObject(value) { return value && typeof value === "object" && !Array.isArray(value) ? { ...value } : {}; }
async function jsonBody(request) {
  const text = await readBody(request);
  try { return text ? JSON.parse(text) : {}; } catch (error) { throw Object.assign(new Error("Invalid JSON body"), { statusCode: 400, code: "parse_error", reason: error.message }); }
}
function safeAgentSessionId(value) { const text = textOr(value, ""); return /^ses_[A-Za-z0-9_.:-]+$/u.test(text) ? text : ""; }
function safeTraceIdLocal(value) { const text = textOr(value, ""); return /^trc_[A-Za-z0-9_.:-]+$/u.test(text) ? text : ""; }
function safeWorkspaceId(value) { return /^wsp_[A-Za-z0-9_.:-]+$/u.test(textOr(value, "")); }
function apiKeyFromRequest(request) {
  const token = bearerTokenFromRequest(request);
  return isApiKeySecret(token) ? token : "";
}
function bearerTokenFromRequest(request) {
  const auth = getHeader(request, "authorization");
  if (!/^Bearer\s+/iu.test(String(auth ?? ""))) return "";
  return String(auth).replace(/^Bearer\s+/iu, "").trim();
}
function hashPassword(password) { const salt = randomBytes(16).toString("hex"); return `sha256:${salt}:${sha256(`${salt}:${password}`)}`; }
function verifyPassword(stored, password) { const [, salt, digest] = String(stored ?? "").split(":"); return Boolean(salt && digest && sha256(`${salt}:${password}`) === digest); }
function sha256(value) { return createHash("sha256").update(String(value)).digest("hex"); }
function generateApiKey() {
  const secret = randomBytes(API_KEY_RANDOM_BYTES).toString("base64url");
  return `${API_KEY_PREFIX}${secret}`;
}
function apiKeyPrefixOf(secret) {
  const text = textOr(secret, "");
  if (!text.startsWith(API_KEY_PREFIX)) return "";
  const remainder = text.slice(API_KEY_PREFIX.length);
  const dot = remainder.indexOf(".");
  const segment = dot === -1 ? remainder : remainder.slice(0, dot);
  return `${API_KEY_PREFIX}${segment}`.slice(0, 24);
}
function hashApiKey(secret) {
  const prefix = apiKeyPrefixOf(secret);
  if (!prefix) return null;
  return `sha256:${sha256(`${prefix}:${secret}`)}`;
}
function isApiKeySecret(value) { return textOr(value, "").startsWith(API_KEY_PREFIX); }
function redactedTokenPrefix(value) { const token = textOr(value, ""); return token ? `${token.slice(0, Math.min(token.length, 12))}...` : ""; }
function stableJson(value) { return JSON.stringify(sortJson(value)); }
function sortJson(value) { if (Array.isArray(value)) return value.map(sortJson); if (value && typeof value === "object") return Object.fromEntries(Object.keys(value).sort().map((key) => [key, sortJson(value[key])])); return value; }
function accessTupleKey(tuple = {}) { return `${tuple.userId}\u0000${tuple.relation}\u0000${tuple.object}`; }
function accessRoutes() { return { session: "/auth/session", login: "/auth/login", logout: "/auth/logout", v1Session: "/v1/auth/session", currentUser: "/v1/users/me", accessStatus: "/v1/access/status", setupStatus: "/v1/setup/status", firstAdminSetup: "/v1/setup/first-admin" }; }

function normalizeToolId(value) { return textOr(value, "").replace(/-/gu, "_"); }
function publicActor(user) { return user ? { id: user.id, username: user.username, displayName: user.displayName, role: user.role, status: user.status } : null; }
function publicAuthMethod(method) {
  return [AUTH_METHOD_API_KEY, AUTH_METHOD_WEB_SESSION, AUTH_METHOD_LEGACY_LOCAL_SESSION, AUTH_METHOD_USER_BILLING_API_KEY, AUTH_METHOD_USER_BILLING_SESSION].includes(method) ? method : AUTH_METHOD_WEB_SESSION;
}
function canonicalPrincipalFromAuth(auth = {}) {
  const actor = auth.actor ?? null;
  const authenticated = Boolean(actor);
  const authMethod = authenticated ? publicAuthMethod(auth.authMethod ?? (auth.apiKey ? AUTH_METHOD_API_KEY : AUTH_METHOD_WEB_SESSION)) : null;
  return {
    authenticated,
    authMethod,
    identityAuthority: authenticated ? identityAuthorityForAuthMethod(authMethod) : null,
    sessionKind: authenticated ? sessionKindForAuthMethod(authMethod) : null,
    actor: authenticated ? publicActor(actor) : null,
    capabilities: capabilitySummaryForPrincipal({ actor, authMethod, userBilling: auth.userBilling }),
    valuesRedacted: true
  };
}
function sessionResponseFromAuth(auth = {}, extra = {}) {
  const principal = canonicalPrincipalFromAuth(auth);
  return {
    ...principal,
    user: principal.actor,
    session: auth.session ?? null,
    sessionExpiresAt: textOr(auth.session?.expiresAt ?? "", "") || null,
    sessionTtlSeconds: SESSION_MAX_AGE_SECONDS,
    contractVersion: "canonical-principal-v1",
    ...extra
  };
}
function identityAuthorityForAuthMethod(authMethod) {
  if (authMethod === AUTH_METHOD_USER_BILLING_API_KEY || authMethod === AUTH_METHOD_USER_BILLING_SESSION) return "user-billing";
  if (authMethod === AUTH_METHOD_LEGACY_LOCAL_SESSION) return "bootstrap-recovery";
  return "hwlab-local";
}
function sessionKindForAuthMethod(authMethod) {
  if (authMethod === AUTH_METHOD_API_KEY || authMethod === AUTH_METHOD_USER_BILLING_API_KEY) return "api-key";
  if (authMethod === AUTH_METHOD_LEGACY_LOCAL_SESSION) return "recovery";
  return "browser";
}
function capabilitySummaryForPrincipal({ actor = null, authMethod = null, userBilling = null } = {}) {
  const authenticated = Boolean(actor);
  const admin = authenticated && actor?.role === "admin";
  const billingBacked = authenticated && (Boolean(userBilling?.active) || authMethod === AUTH_METHOD_USER_BILLING_API_KEY || authMethod === AUTH_METHOD_USER_BILLING_SESSION);
  return {
    web: authenticated ? "available" : "forbidden",
    workbench: authenticated ? "available" : "forbidden",
    codeAgent: authenticated ? "available" : "forbidden",
    billing: billingBacked ? "available" : authenticated ? "unlinked" : "forbidden",
    apiKeys: authenticated ? "available" : "forbidden",
    admin: admin ? "available" : "forbidden"
  };
}
function userBillingActor(principal = {}) {
  const id = textOr(principal.userId, "");
  const username = textOr(principal.username, "") || localUserBillingUsername(id);
  return {
    id,
    username,
    displayName: textOr(principal.displayName, principal.username ?? principal.email ?? principal.userId),
    role: principal.role === "admin" ? "admin" : "user",
    status: "active"
  };
}
function localUserBillingUsername(userId) {
  const source = textOr(userId, "external");
  const safe = source.replace(/[^A-Za-z0-9_.:-]+/gu, "_").slice(0, 48) || "external";
  return `ub_${safe}_${sha256(source).slice(0, 12)}`;
}
function publicApiKey(key, { includeSecret = false } = {}) {
  if (!key) return null;
  return {
    id: key.id,
    userId: key.userId,
    name: key.name,
    keyPrefix: key.keyPrefix,
    scopes: Array.isArray(key.scopes) ? key.scopes : [],
    status: key.status,
    createdAt: key.createdAt,
    lastUsedAt: key.lastUsedAt ?? null,
    revokedAt: key.revokedAt ?? null,
    ...(includeSecret && key.displaySecret ? { displaySecret: key.displaySecret } : {})
  };
}
function redactedUser(user) { return publicActor(user); }
function publicSession(session) { return { id: session.id, userId: session.userId, createdAt: session.createdAt, lastSeenAt: session.lastSeenAt, expiresAt: session.expiresAt, revoked: Boolean(session.revokedAt) }; }
function publicAccessTuple(tuple) { return tuple ? { userId: tuple.userId, relation: tuple.relation, object: tuple.object, createdByAdminId: tuple.createdByAdminId, createdAt: tuple.createdAt } : null; }
function toolsFromTuples(tuples = []) { return Object.fromEntries(HWLAB_TOOL_IDS.map((toolId) => [toolId, tuples.some((tuple) => tuple.object === openFgaObject("tool", toolId) && tuple.relation === "can_use")])); }
function defaultDeniedToolCapabilities() { return { contractVersion: "admin-access-v1", actor: null, tools: Object.fromEntries(HWLAB_TOOL_IDS.map((toolId) => [toolId, { allowed: false, authorization: { contractVersion: "openfga-authorization-v1", mode: "enforce", allowed: false, decisionSource: "missing-owner", degraded: false } }])), valuesRedacted: true }; }
function normalizeAgentSessionOwnerRecord(input, existing, now) {
  const nextTraceId = safeTraceIdLocal(input.traceId ?? input.lastTraceId);
  const existingLastTraceId = safeTraceIdLocal(existing?.lastTraceId);
  const historicalTraceUpdate = Boolean(nextTraceId && existingLastTraceId && nextTraceId !== existingLastTraceId && isHistoricalTraceBackfill(input.session, nextTraceId));
  return {
    id: input.sessionId,
    projectId: textOr(existing?.projectId, textOr(input.projectId, "prj_hwpod_workbench")),
    agentId: input.agentId ?? existing?.agentId ?? "hwlab-code-agent",
    status: input.status ?? existing?.status ?? "active",
    startedAt: existing?.startedAt ?? input.startedAt ?? now,
    endedAt: input.endedAt ?? existing?.endedAt ?? null,
    ownerUserId: input.ownerUserId,
    conversationId: input.conversationId ?? existing?.conversationId ?? null,
    threadId: input.threadId ?? existing?.threadId ?? null,
    lastTraceId: historicalTraceUpdate ? existingLastTraceId : nextTraceId || existingLastTraceId || null,
    session: mergeAgentSessionOwnerEvidence(input.session, existing?.session, { historicalTraceUpdate }),
    updatedAt: now
  };
}
function isHistoricalTraceBackfill(sessionValue, traceId) {
  const snapshot = normalizeObject(sessionValue);
  if (snapshot.historicalTraceBackfill === true || snapshot.source === "agent-session-trace-repair") return true;
  if (Array.isArray(snapshot.messages) && snapshot.messages.length > 0) return false;
  if (agentSessionTraceEvidence({ session: snapshot }, traceId)) return true;
  return Boolean(snapshot.finalResponse || snapshot.traceSummary || snapshot.agentRun);
}
function mergeAgentSessionOwnerEvidence(nextValue, existingValue, options = {}) {
  const existing = normalizeObject(existingValue);
  const next = normalizeObject(nextValue);
  const merged = { ...existing, ...next };
  merged.traceResults = mergeAgentSessionTraceResults(mergeAgentSessionTraceResults(existing.traceResults, existing), next.traceResults ?? next.traceResult ?? next);
  if (options.historicalTraceUpdate === true) {
    for (const field of ["agentRun", "finalResponse", "traceSummary", "traceId", "sessionStatus", "sessionLifecycleStatus"]) {
      if (existing[field] !== undefined) merged[field] = existing[field];
      else delete merged[field];
    }
  }
  const existingMessages = Array.isArray(existing.messages) ? existing.messages : null;
  const nextMessages = Array.isArray(next.messages) ? next.messages : null;
  if (nextMessages?.length) {
    merged.messages = mergeAgentSessionOwnerMessages(nextMessages, existingMessages, {
      traceId: next.lastTraceId ?? next.traceId ?? existing.lastTraceId ?? existing.traceId ?? firstMessageTraceId(nextMessages) ?? firstMessageTraceId(existingMessages),
      conversationId: next.conversationId ?? existing.conversationId ?? firstMessageField(nextMessages, "conversationId") ?? firstMessageField(existingMessages, "conversationId"),
      sessionId: next.sessionId ?? existing.sessionId ?? firstMessageField(nextMessages, "sessionId") ?? firstMessageField(existingMessages, "sessionId"),
      threadId: next.threadId ?? existing.threadId ?? firstMessageField(nextMessages, "threadId") ?? firstMessageField(existingMessages, "threadId"),
      now: next.updatedAt ?? existing.updatedAt ?? firstMessageField(nextMessages, "updatedAt") ?? firstMessageField(nextMessages, "createdAt") ?? firstMessageField(existingMessages, "updatedAt") ?? firstMessageField(existingMessages, "createdAt"),
      firstUserPreview: firstUserPreviewFromMessages(nextMessages) ?? next.firstUserMessagePreview ?? firstUserPreviewFromMessages(existingMessages) ?? existing.firstUserMessagePreview
    });
  } else if (existingMessages?.length) {
    merged.messages = existingMessages;
  }
  merged.messages = normalizeFinalResponseConversationMessages(merged.messages, merged.finalResponse);
  const existingChatMessages = Array.isArray(existing.chatMessages) ? existing.chatMessages : null;
  const nextChatMessages = Array.isArray(next.chatMessages) ? next.chatMessages : null;
  if (existingChatMessages?.length && (!nextChatMessages || nextChatMessages.length === 0)) merged.chatMessages = existingChatMessages;
  if (!next.agentRun && existing.agentRun) merged.agentRun = existing.agentRun;
  const activeTraceEvidence = latestAgentSessionTraceEvidence(merged);
  if (activeTraceEvidence) {
    if (!merged.finalResponse && activeTraceEvidence.finalResponse) merged.finalResponse = activeTraceEvidence.finalResponse;
    if (!merged.traceSummary && activeTraceEvidence.traceSummary) merged.traceSummary = activeTraceEvidence.traceSummary;
  }
  const nextCount = numberOrNull(next.messageCount);
  const existingCount = numberOrNull(existing.messageCount);
  if (Array.isArray(merged.messages)) {
    merged.messageCount = merged.messages.length;
  } else if (nextCount !== null || existingCount !== null) {
    merged.messageCount = Math.max(nextCount ?? 0, existingCount ?? 0);
  }
  if (!next.firstUserMessagePreview && existing.firstUserMessagePreview) {
    merged.firstUserMessagePreview = existing.firstUserMessagePreview;
  } else if (next.firstUserMessagePreview && !existing.firstUserMessagePreview) {
    merged.firstUserMessagePreview = next.firstUserMessagePreview;
  }
  return merged;
}
function mergeAgentSessionTraceResults(existingValue, nextValue) {
  const records = new Map();
  for (const source of [existingValue, nextValue]) {
    for (const entry of traceResultEntries(source)) {
      const normalized = normalizeAgentSessionTraceResult(entry);
      if (!normalized) continue;
      records.set(normalized.traceId, { ...(records.get(normalized.traceId) ?? {}), ...normalized });
    }
  }
  const items = [...records.values()]
    .sort((a, b) => String(b.updatedAt ?? b.createdAt ?? "").localeCompare(String(a.updatedAt ?? a.createdAt ?? "")))
    .slice(0, 50);
  return Object.fromEntries(items.reverse().map((item) => [item.traceId, item]));
}
function traceResultEntries(value) {
  if (!value) return [];
  if (Array.isArray(value)) return value;
  if (typeof value === "object") {
    if (safeTraceIdLocal(value.traceId)) return [value];
    return Object.entries(value)
      .filter(([key]) => safeTraceIdLocal(key))
      .map(([traceId, entry]) => ({ ...normalizeObject(entry), traceId }));
  }
  return [];
}
function normalizeAgentSessionTraceResult(value) {
  const record = normalizeObject(value);
  const traceId = safeTraceIdLocal(record.traceId);
  if (!traceId) return null;
  const agentRun = normalizeObject(record.agentRun);
  const result = pruneEmpty({
    traceId,
    status: textOr(record.status, ""),
    conversationId: textOr(record.conversationId, ""),
    sessionId: textOr(record.sessionId, ""),
    threadId: textOr(record.threadId, ""),
    messageId: textOr(record.messageId, ""),
    createdAt: textOr(record.createdAt, ""),
    updatedAt: textOr(record.updatedAt, ""),
    finalResponse: redactTraceFinalResponse(record.finalResponse),
    traceSummary: redactTraceSummary(record.traceSummary),
    agentRun: redactAgentRunSummary(agentRun),
    userBillingReservation: redactBillingReservation(record.userBillingReservation),
    valuesRedacted: true,
    secretMaterialStored: false
  });
  return result.agentRun?.runId || result.finalResponse || result.traceSummary ? result : null;
}

function redactBillingReservation(value) {
  const reservation = normalizeObject(value);
  const reservationId = textOr(reservation.reservationId, "");
  if (!reservationId) return null;
  return pruneEmpty({
    reservationId,
    resourceType: textOr(reservation.resourceType, ""),
    planId: textOr(reservation.planId, ""),
    estimatedCredits: numberOrNull(reservation.estimatedCredits),
    estimatedTokens: numberOrNull(reservation.estimatedTokens),
    expiresAt: textOr(reservation.expiresAt, ""),
    valuesRedacted: true,
    secretMaterialStored: false
  });
}
function agentSessionTraceEvidence(session, traceId) {
  const id = safeTraceIdLocal(traceId);
  if (!id) return null;
  const snapshot = normalizeObject(session?.session);
  return normalizeAgentSessionTraceResult(snapshot.traceResults?.[id] ?? snapshot.traceResult?.[id] ?? null);
}
function latestAgentSessionTraceEvidence(snapshot) {
  const id = safeTraceIdLocal(snapshot?.lastTraceId ?? snapshot?.traceId);
  if (!id) return null;
  return normalizeAgentSessionTraceResult(snapshot.traceResults?.[id] ?? null);
}
function agentSessionContainsTraceId(session, traceId) {
  const id = safeTraceIdLocal(traceId);
  if (!id) return false;
  const snapshot = normalizeObject(session?.session);
  if (safeTraceIdLocal(snapshot.lastTraceId ?? snapshot.traceId) === id) return true;
  return [snapshot.messages, snapshot.chatMessages].some((messages) => Array.isArray(messages) && messages.some((message) => safeTraceIdLocal(message?.traceId) === id));
}
function normalizeFinalResponseConversationMessages(messages, finalResponse) {
  const finalText = conversationText(finalResponse?.text ?? finalResponse?.content ?? finalResponse?.message, 12000);
  const traceId = safeTraceIdLocal(finalResponse?.traceId);
  if (!Array.isArray(messages) || !finalText) return messages;
  return messages.map((message) => {
    if (message?.role !== "agent") return message;
    const sameTrace = traceId && safeTraceIdLocal(message.traceId) === traceId;
    if (!sameTrace) return message;
    return redactConversationMessage({
      ...message,
      text: finalText,
      status: textOr(finalResponse.status, message.status),
      updatedAt: textOr(finalResponse.updatedAt ?? finalResponse.createdAt, message.updatedAt)
    });
  }).filter(Boolean);
}
function mergeAgentSessionOwnerMessages(nextMessages = [], existingMessages = [], context = {}) {
  const next = dedupeConversationMessages(nextMessages);
  const existing = dedupeConversationMessages(existingMessages);
  const merged = [...existing];
  for (const message of next) {
    const index = merged.findIndex((item) => sameConversationMessage(item, message));
    if (index >= 0) merged[index] = mergeConversationMessage(merged[index], message);
    else merged.push(message);
  }
  return dedupeConversationMessages(ensureTerminalUserMessage(merged, context)).slice(-50);
}
function sameConversationMessage(left = {}, right = {}) {
  const leftId = textOr(left.id, "");
  const rightId = textOr(right.id, "");
  if (leftId && rightId && leftId === rightId) return true;
  const leftTrace = safeTraceIdLocal(left.traceId);
  const rightTrace = safeTraceIdLocal(right.traceId);
  return Boolean(leftTrace && rightTrace && leftTrace === rightTrace && textOr(left.role, "") === textOr(right.role, ""));
}
function dedupeConversationMessages(messagesSource = []) {
  const source = Array.isArray(messagesSource) ? messagesSource : [];
  const merged = [];
  for (const rawMessage of source) {
    const message = redactConversationMessage(rawMessage);
    if (!message) continue;
    const index = merged.findIndex((item) => sameConversationMessage(item, message));
    if (index >= 0) merged[index] = mergeConversationMessage(merged[index], message);
    else merged.push(message);
  }
  return merged.slice(-50);
}
function mergeConversationMessage(existing = {}, next = {}) {
  const nextText = conversationText(next.text ?? next.content ?? next.message, 12000);
  const existingText = conversationText(existing.text ?? existing.content ?? existing.message, 12000);
  return pruneEmpty({
    ...existing,
    ...next,
    title: textOr(next.title, existing.title),
    text: nextText || existingText,
    runnerTrace: next.runnerTrace ?? existing.runnerTrace,
    updatedAt: textOr(next.updatedAt, existing.updatedAt),
    createdAt: textOr(next.createdAt, existing.createdAt)
  });
}
function firstMessageTraceId(messagesSource) {
  return safeTraceIdLocal(firstMessageField(messagesSource, "traceId")) || null;
}
function firstMessageField(messagesSource, key) {
  if (!Array.isArray(messagesSource)) return null;
  for (const message of messagesSource) {
    const value = textOr(message?.[key], "");
    if (value) return boundedText(value, 240);
  }
  return null;
}
function agentSessionIdForRecord(sessionId, traceId) { const sessionText = textOr(sessionId, ""); if (/^ses_[A-Za-z0-9_.:-]+$/u.test(sessionText)) return sessionText; const traceText = textOr(traceId, ""); return /^trc_[A-Za-z0-9_.:-]+$/u.test(traceText) ? `ses_pending_${traceText.slice(4)}` : null; }
function boundedListLimit(value) { const parsed = Number.parseInt(String(value ?? ""), 10); return Math.min(Math.max(Number.isInteger(parsed) && parsed > 0 ? parsed : 20, 1), 101); }
function nonNegativeListOffset(value) { const parsed = Number.parseInt(String(value ?? ""), 10); return Number.isInteger(parsed) && parsed > 0 ? parsed : 0; }
function defaultWorkspaceId(ownerUserId, projectId) { return `wsp_${sha256(`${ownerUserId}:${projectId}`).slice(0, 24)}`; }
function normalizeWorkspaceRecord(input = {}, existing = null, now = new Date().toISOString(), { create = false, replaceJson = false } = {}) {
  const patch = normalizeObject(input.patch);
  const workspaceJson = replaceJson ? patch : { ...normalizeObject(existing?.workspace), ...patch };
  return {
    id: textOr(input.workspaceId ?? input.id, existing?.id ?? (create ? defaultWorkspaceId(input.ownerUserId, input.projectId) : "")),
    ownerUserId: textOr(input.ownerUserId, existing?.ownerUserId ?? ""),
    projectId: textOr(input.projectId, existing?.projectId ?? "prj_hwpod_workbench"),
    name: textOr(input.name, existing?.name ?? "Default Workbench"),
    status: input.status === "archived" ? "archived" : existing?.status ?? "active",
    isDefault: input.isDefault === false ? false : existing?.isDefault ?? true,
    selectedConversationId: nullableText(input.selectedConversationId, existing?.selectedConversationId),
    selectedAgentSessionId: nullableText(input.selectedAgentSessionId, existing?.selectedAgentSessionId),
    activeTraceId: nullableText(input.activeTraceId, existing?.activeTraceId),
    providerProfile: nullableText(input.providerProfile, existing?.providerProfile),
    workspace: workspaceJson,
    revision: (Number(existing?.revision) || 0) + (existing ? 1 : 1),
    updatedBySessionId: nullableText(input.updatedBySessionId, existing?.updatedBySessionId),
    updatedByClient: nullableText(input.updatedByClient, existing?.updatedByClient),
    createdAt: existing?.createdAt ?? now,
    updatedAt: now
  };
}
function nullableText(value, fallback = null) {
  if (value === null) return null;
  const text = textOr(value, "");
  return text || fallback || null;
}
function workspaceParams(workspace) {
  return [workspace.id, workspace.ownerUserId, workspace.projectId, workspace.name, workspace.status, workspace.isDefault, workspace.selectedConversationId, workspace.selectedAgentSessionId, workspace.activeTraceId, workspace.providerProfile, stableJson(workspace.workspace ?? {}), workspace.revision, workspace.updatedBySessionId, workspace.updatedByClient, workspace.createdAt, workspace.updatedAt];
}
function firstUserPreviewFromMessages(messagesSource) {
  if (!Array.isArray(messagesSource)) return null;
  for (const message of messagesSource) {
    if (!message || typeof message !== "object") continue;
    if (String(message.role ?? "").toLowerCase() !== "user") continue;
    const text = conversationText(message.text ?? message.content ?? message.message ?? message.title, 240);
    if (text) return boundedText(text, 240);
  }
  return null;
}
function lastUserMessageAtFromMessages(messagesSource) {
  if (!Array.isArray(messagesSource)) return null;
  let latest = null;
  for (const message of messagesSource) {
    if (!message || typeof message !== "object") continue;
    if (String(message.role ?? "").toLowerCase() !== "user") continue;
    latest = latestIso(latest, message.createdAt, message.updatedAt);
  }
  return latest;
}
function latestIso(...values) {
  let latest = null;
  for (const value of values) {
    const text = textOr(value, "");
    if (!text) continue;
    const ms = Date.parse(text);
    if (!Number.isFinite(ms)) continue;
    if (!latest || ms > latest.ms) latest = { value: text, ms };
  }
  return latest?.value ?? null;
}
function numberOrNull(value) {
  const parsed = Number(value);
  return Number.isFinite(parsed) ? parsed : null;
}
function ensureTerminalUserMessage(messages = [], context = {}) {
  if (messages.some((message) => message?.role === "user")) return messages;
  const userText = conversationText(context.firstUserPreview, 12000);
  if (!userText) return messages;
  const traceId = safeTraceIdLocal(context.traceId);
  const messageId = traceId ? `msg_${traceId.slice(4)}_user` : `msg_terminal_user_${messages.length}`;
  const userMessage = redactConversationMessage({
    id: messageId,
    messageId,
    role: "user",
    title: "用户",
    text: userText,
    status: "sent",
    traceId,
    turnId: traceId,
    conversationId: context.conversationId,
    sessionId: context.sessionId,
    threadId: context.threadId,
    createdAt: context.now,
    updatedAt: context.now
  });
  return userMessage ? [userMessage, ...messages] : messages;
}
function redactConversationMessage(message) {
  if (!message || typeof message !== "object") return null;
  const runnerTrace = message.runnerTrace && typeof message.runnerTrace === "object" ? message.runnerTrace : null;
  const text = conversationText(message.text ?? message.content ?? message.message, 12000);
  return pruneEmpty({
    id: textOr(message.id, ""),
    messageId: textOr(message.messageId ?? message.id, ""),
    role: textOr(message.role, ""),
    title: textOr(message.title, ""),
    text,
    status: textOr(message.status, ""),
    traceId: textOr(message.traceId, ""),
    turnId: textOr(message.turnId ?? message.traceId, ""),
    conversationId: textOr(message.conversationId, ""),
    sessionId: textOr(message.sessionId, ""),
    threadId: textOr(message.threadId, ""),
    retryOf: textOr(message.retryOf, ""),
    createdAt: textOr(message.createdAt, ""),
    updatedAt: textOr(message.updatedAt, ""),
    runnerTrace: runnerTrace ? pruneEmpty({
      traceId: runnerTrace.traceId,
      status: runnerTrace.status,
      sessionId: runnerTrace.sessionId,
      threadId: runnerTrace.threadId,
      eventCount: runnerTrace.eventCount,
      eventsCompacted: runnerTrace.eventsCompacted === true,
      fullTraceLoaded: runnerTrace.fullTraceLoaded === true,
      lastEvent: runnerTrace.lastEvent,
      traceStatus: textOr(runnerTrace.traceStatus, ""),
      finalResponse: redactTraceFinalResponse(runnerTrace.finalResponse),
      traceSummary: redactTraceSummary(runnerTrace.traceSummary)
    }) : undefined
  });
}
function redactTraceFinalResponse(value) {
  const response = normalizeObject(value);
  if (Object.keys(response).length === 0) return undefined;
  return pruneEmpty({
    traceId: textOr(response.traceId, ""),
    role: textOr(response.role, ""),
    status: textOr(response.status, ""),
    messageId: textOr(response.messageId, ""),
    text: conversationText(response.text ?? response.content ?? response.message, 12000),
    textPreview: conversationText(response.textPreview, 1200),
    textChars: numberOrNull(response.textChars)
  });
}
function redactTraceSummary(value) {
  const summary = normalizeObject(value);
  if (Object.keys(summary).length === 0) return undefined;
  return pruneEmpty({
    traceId: textOr(summary.traceId, ""),
    source: textOr(summary.source, ""),
    terminalStatus: textOr(summary.terminalStatus, ""),
    sourceEventCount: numberOrNull(summary.sourceEventCount ?? summary.eventCount),
    noiseEventCount: numberOrNull(summary.noiseEventCount),
    omittedNoiseCount: numberOrNull(summary.omittedNoiseCount),
    lastEventLabel: textOr(summary.lastEventLabel, ""),
    updatedAt: textOr(summary.updatedAt, ""),
    finalAssistantRow: redactTraceFinalResponse(summary.finalAssistantRow),
    agentRun: redactAgentRunSummary(summary.agentRun)
  });
}
function redactAgentRunSummary(value) {
  const agentRun = normalizeObject(value);
  if (Object.keys(agentRun).length === 0) return undefined;
  return pruneEmpty({
    adapter: textOr(agentRun.adapter, ""),
    managerUrl: textOr(agentRun.managerUrl, ""),
    backendProfile: textOr(agentRun.backendProfile, ""),
    providerId: textOr(agentRun.providerId, ""),
    runId: textOr(agentRun.runId, ""),
    commandId: textOr(agentRun.commandId, ""),
    attemptId: textOr(agentRun.attemptId, ""),
    runnerId: textOr(agentRun.runnerId, ""),
    runnerJobId: textOr(agentRun.runnerJobId, ""),
    jobName: textOr(agentRun.jobName, ""),
    namespace: textOr(agentRun.namespace, ""),
    status: textOr(agentRun.status, ""),
    runStatus: textOr(agentRun.runStatus, ""),
    commandState: textOr(agentRun.commandState, ""),
    terminalStatus: textOr(agentRun.terminalStatus, ""),
    runnerJobCount: numberOrNull(agentRun.runnerJobCount),
    lastSeq: numberOrNull(agentRun.lastSeq),
    eventStartSeq: numberOrNull(agentRun.eventStartSeq ?? agentRun.commandStartSeq ?? agentRun.startSeq),
    sessionId: textOr(agentRun.sessionId, ""),
    conversationId: textOr(agentRun.conversationId, ""),
    threadId: textOr(agentRun.threadId, ""),
    traceId: textOr(agentRun.traceId, ""),
    reused: typeof agentRun.reused === "boolean" ? agentRun.reused : undefined,
    runnerReused: typeof agentRun.runnerReused === "boolean" ? agentRun.runnerReused : undefined,
    threadReused: typeof agentRun.threadReused === "boolean" ? agentRun.threadReused : undefined,
    persistentResume: typeof agentRun.persistentResume === "boolean" ? agentRun.persistentResume : undefined,
    reuseEligible: typeof agentRun.reuseEligible === "boolean" ? agentRun.reuseEligible : undefined
  });
}
function boundedText(value, maxBytes) {
  const text = String(value ?? "");
  const buffer = Buffer.from(text, "utf8");
  return buffer.length > maxBytes ? buffer.subarray(0, maxBytes).toString("utf8") : text;
}
function firstConversationText(values = [], maxBytes = 12000) {
  for (const value of values) {
    const text = conversationText(value, maxBytes);
    if (text) return text;
  }
  return "";
}
function conversationText(value, maxBytes = 12000) {
  const extracted = conversationTextRaw(value).replace(/\r\n?/gu, "\n");
  if (!extracted.trim() || extracted.trim() === "[object Object]") return "";
  return boundedText(extracted, maxBytes);
}
function conversationTextRaw(value) {
  if (value === undefined || value === null) return "";
  if (typeof value === "string") return value;
  if (typeof value === "number" || typeof value === "boolean") return String(value);
  if (Array.isArray(value)) return value.map(conversationTextRaw).filter(Boolean).join("\n");
  if (typeof value === "object") {
    for (const key of ["text", "content", "message", "prompt", "value", "summary", "preview", "title"]) {
      const text = conversationTextRaw(value[key]);
      if (text) return text;
    }
  }
  return "";
}
function pruneEmpty(value) { return Object.fromEntries(Object.entries(value).filter(([, item]) => item !== undefined && item !== "" && item !== null)); }
function safeReturnTo(value) {
  const text = textOr(value, "/workbench").trim() || "/workbench";
  if (!text.startsWith("/") || text.startsWith("//") || text.includes("\\") || /[\u0000-\u001f\u007f]/u.test(text)) return "/workbench";
  try {
    const url = new URL(text, "https://hwlab.local");
    if (url.origin !== "https://hwlab.local") return "/workbench";
    return `${url.pathname}${url.search}${url.hash}` || "/workbench";
  } catch {
    return "/workbench";
  }
}
async function verifyOidcIdToken(idToken, { issuer, clientId, nonce, now, fetchImpl }) {
  const parts = String(idToken ?? "").split(".");
  if (parts.length !== 3) return { ok: false, code: "oidc_id_token_invalid", message: "OIDC ID token is missing or malformed" };
  const header = parseJson(Buffer.from(base64UrlToBase64(parts[0]), "base64").toString("utf8"), null);
  const claims = parseJson(Buffer.from(base64UrlToBase64(parts[1]), "base64").toString("utf8"), null);
  if (!header || typeof header !== "object") return { ok: false, code: "oidc_id_token_invalid", message: "OIDC ID token header is invalid" };
  if (!claims || typeof claims !== "object") return { ok: false, code: "oidc_id_token_invalid", message: "OIDC ID token payload is invalid" };
  if (textOr(header.alg, "") !== "RS256") return { ok: false, code: "oidc_id_token_alg_invalid", message: "OIDC ID token must be signed with RS256" };
  const kid = textOr(header.kid, "");
  if (!kid) return { ok: false, code: "oidc_id_token_kid_missing", message: "OIDC ID token key id is missing" };
  const issuerBase = issuer.replace(/\/$/, "");
  const keyResult = await fetchOidcJwksKey({ issuer: issuerBase, kid, fetchImpl });
  if (!keyResult.ok) return keyResult;
  let signatureOk = false;
  try {
    const key = createPublicKey({ key: keyResult.jwk, format: "jwk" });
    signatureOk = verifySignature("RSA-SHA256", Buffer.from(`${parts[0]}.${parts[1]}`), key, Buffer.from(base64UrlToBase64(parts[2]), "base64"));
  } catch (error) {
    return { ok: false, code: "oidc_id_token_signature_error", message: error?.message ?? "OIDC ID token signature verification failed" };
  }
  if (!signatureOk) return { ok: false, code: "oidc_id_token_signature_invalid", message: "OIDC ID token signature is invalid" };
  if (textOr(claims.iss, "") !== issuerBase) return { ok: false, code: "oidc_issuer_mismatch", message: "OIDC ID token issuer mismatch" };
  const aud = Array.isArray(claims.aud) ? claims.aud.map(String) : [textOr(claims.aud, "")];
  if (!aud.includes(clientId)) return { ok: false, code: "oidc_audience_mismatch", message: "OIDC ID token audience mismatch" };
  if (aud.length > 1 && textOr(claims.azp, "") !== clientId) return { ok: false, code: "oidc_authorized_party_mismatch", message: "OIDC ID token authorized party mismatch" };
  if (!textOr(claims.sub, "")) return { ok: false, code: "oidc_subject_missing", message: "OIDC ID token subject is missing" };
  if (textOr(claims.nonce, "") !== textOr(nonce, "")) return { ok: false, code: "oidc_nonce_mismatch", message: "OIDC ID token nonce mismatch" };
  const nowSeconds = Math.floor(Date.parse(now) / 1000);
  const exp = Number(claims.exp);
  const iat = Number(claims.iat);
  const nbf = Number(claims.nbf);
  if (!Number.isFinite(exp)) return { ok: false, code: "oidc_id_token_exp_missing", message: "OIDC ID token expiration is missing" };
  if (exp <= nowSeconds) return { ok: false, code: "oidc_id_token_expired", message: "OIDC ID token is expired" };
  if (!Number.isFinite(iat)) return { ok: false, code: "oidc_id_token_iat_missing", message: "OIDC ID token issued-at is missing" };
  if (iat > nowSeconds + 300) return { ok: false, code: "oidc_id_token_iat_invalid", message: "OIDC ID token issued-at is in the future" };
  if (Number.isFinite(nbf) && nbf > nowSeconds + 300) return { ok: false, code: "oidc_id_token_nbf_invalid", message: "OIDC ID token not-before is in the future" };
  return { ok: true, claims };
}
async function fetchOidcJwksKey({ issuer, kid, fetchImpl }) {
  try {
    const response = await (fetchImpl ?? fetch)(`${issuer}/protocol/openid-connect/certs`, { headers: { accept: "application/json" } });
    const text = await response.text();
    const json = parseJson(text, {});
    if (response.status >= 400) return { ok: false, code: "oidc_jwks_fetch_failed", message: textOr(json.error_description, text) };
    const key = (Array.isArray(json.keys) ? json.keys : []).find((item) => textOr(item?.kid, "") === kid && textOr(item?.kty, "") === "RSA");
    if (!key) return { ok: false, code: "oidc_jwks_key_not_found", message: "OIDC signing key was not found in JWKS" };
    return { ok: true, jwk: key };
  } catch (error) {
    return { ok: false, code: "oidc_jwks_fetch_error", message: error?.message ?? String(error) };
  }
}
function base64UrlToBase64(value) {
  const text = String(value ?? "").replace(/-/gu, "+").replace(/_/gu, "/");
  return text.padEnd(Math.ceil(text.length / 4) * 4, "=");
}
function sessionCookieFromRequest(request) { const cookie = parseCookie(getHeader(request, "cookie")); return cookie[SESSION_COOKIE] ?? ""; }
function parseCookie(value) { return Object.fromEntries(String(value ?? "").split(";").map((part) => part.trim()).filter(Boolean).map((part) => { const index = part.indexOf("="); return index > 0 ? [part.slice(0, index), decodeURIComponent(part.slice(index + 1))] : [part, ""]; })); }
function setSessionCookie(response, token, maxAge, request, env = process.env) { response.setHeader("set-cookie", buildSessionCookie(token, maxAge, { secure: shouldUseSecureSessionCookie(request, env) })); }
function clearSessionCookie(response, request, env = process.env) { response.setHeader("set-cookie", buildClearSessionCookie({ secure: shouldUseSecureSessionCookie(request, env) })); }
function shouldUseSecureSessionCookie(request, env = process.env) {
  const forced = textOr(env.HWLAB_SESSION_COOKIE_SECURE, "").toLowerCase();
  if (["1", "true", "yes", "on", "secure"].includes(forced)) return true;
  if (["0", "false", "no", "off", "insecure"].includes(forced)) return false;
  const forwardedProto = textOr(getHeader(request, "x-forwarded-proto"), "").split(",")[0]?.trim().toLowerCase();
  if (forwardedProto) return forwardedProto === "https";
  const forwarded = textOr(getHeader(request, "forwarded"), "");
  if (/\bproto=https\b/iu.test(forwarded)) return true;
  if (/\bproto=http\b/iu.test(forwarded)) return false;
  return false;
}
function errorPayload(code, message, status) { return { ok: false, status, error: { code, message } }; }

function setAuthTraceHeaders(response, context) {
  if (!context?.traceId || typeof response?.setHeader !== "function") return;
  response.setHeader("traceparent", context.traceparent);
  response.setHeader("x-hwlab-otel-trace-id", context.traceId);
}

function userBillingTraceAttributes(input = {}) {
  const result = input?.result ?? input;
  const status = Number(input?.status ?? result?.status ?? 0);
  const retryable = Boolean(input?.retryable ?? isRetryableUserBillingResult(result));
  const errorCode = textOr(input?.errorCode ?? result?.error?.code, "");
  return {
    "user_billing.service_id": "hwlab-user-billing",
    "user_billing.retryable": retryable,
    "user_billing.retry_count": nonNegativeResultInteger(result?.retryCount),
    "user_billing.transient_observed": Boolean(result?.transientObserved ?? retryable),
    "user_billing.values_redacted": true,
    ...(status ? { "user_billing.http_status_code": status } : {}),
    ...(errorCode ? { "user_billing.error_code": errorCode, "error.code": errorCode } : {})
  };
}

function userBillingDependencyErrorPayload(result, fallbackCode, fallbackMessage, fallbackStatus) {
  const status = result?.status ?? fallbackStatus;
  const payload = errorPayload(result?.error?.code ?? fallbackCode, result?.error?.message ?? fallbackMessage, status);
  const retryable = isRetryableUserBillingResult(result);
  payload.error.retryable = retryable;
  payload.error.dependency = {
    serviceId: "hwlab-user-billing",
    retryCount: nonNegativeResultInteger(result?.retryCount),
    transientObserved: Boolean(result?.transientObserved ?? retryable),
    valuesRedacted: true
  };
  return payload;
}

function isRetryableUserBillingResult(result) {
  if (!result || result.ok) return false;
  if (result.retryable === true) return true;
  const code = textOr(result.error?.code, "");
  if (code === "user_billing_not_configured") return false;
  if (code === "user_billing_unreachable") return true;
  const status = Number(result.status ?? 0);
  if ([500, 502, 503, 504].includes(status)) return true;
  return false;
}

function nonNegativeResultInteger(value) {
  const parsed = Number.parseInt(String(value ?? ""), 10);
  return Number.isInteger(parsed) && parsed >= 0 ? parsed : 0;
}
function accessWriteErrorPayload(result = {}) {
  const error = result.error ?? {};
  const code = textOr(error.code, "openfga_write_failed");
  const message = textOr(error.message, "OpenFGA authorization write failed; permission cache was not updated");
  return { ...errorPayload(code, message, result.status ?? 503), result };
}
function sendAccessError(response, error) { const status = error?.statusCode ?? 500; sendJson(response, status, errorPayload(error?.code ?? "access_control_error", error?.message ?? "Access control request failed", status)); }
function pgUser(row) { return row ? { id: row.id, username: row.username, displayName: row.display_name, role: row.role, status: row.status, passwordHash: row.password_hash, createdAt: row.created_at, updatedAt: row.updated_at } : null; }
function pgUserWithOIDC(row) { const user = pgUser(row); if (!user) return null; return { ...user, authProvider: textOr(row.auth_provider, "local"), keycloakIssuer: textOr(row.keycloak_issuer, "") || null, keycloakSub: textOr(row.keycloak_sub, "") || null, email: textOr(row.email, "") || null, lastLoginAt: textOr(row.last_login_at, "") || null }; }
function pgApiKey(row) { if (!row) return null; return { id: row.id, userId: row.user_id, name: textOr(row.name, API_KEY_DEFAULT_NAME), keyPrefix: row.key_prefix, keyHash: row.key_hash ?? null, displaySecret: row.display_secret ?? null, scopes: parseJson(row.scopes_json, []), status: textOr(row.status, "active"), createdAt: row.created_at, lastUsedAt: row.last_used_at ?? null, revokedAt: row.revoked_at ?? null }; }
function pgSession(row) { return { id: row.id, userId: row.user_id, tokenHash: row.session_token_hash, createdAt: row.created_at, lastSeenAt: row.last_seen_at, expiresAt: row.expires_at, revokedAt: row.revoked_at, user: { id: row.user_id, username: row.username, displayName: row.display_name, role: row.role, status: row.status, passwordHash: row.password_hash, createdAt: row.user_created_at, updatedAt: row.user_updated_at } }; }
function pgAgentSession(row) { return row ? { id: row.id, projectId: row.project_id, agentId: row.agent_id, status: row.status, startedAt: row.started_at, endedAt: row.ended_at, ownerUserId: row.owner_user_id, conversationId: row.conversation_id, threadId: row.thread_id, lastTraceId: row.last_trace_id, session: parseJson(row.session_json, {}), updatedAt: row.updated_at } : null; }
function pgWorkspace(row) { return row ? { id: row.id, ownerUserId: row.owner_user_id, projectId: row.project_id, name: row.name, status: row.status, isDefault: row.is_default !== false, selectedConversationId: row.selected_conversation_id, selectedAgentSessionId: row.selected_agent_session_id, activeTraceId: row.active_trace_id, providerProfile: row.provider_profile, workspace: parseJson(row.workspace_json, {}), revision: Number(row.revision ?? 1), updatedBySessionId: row.updated_by_session_id, updatedByClient: row.updated_by_client, createdAt: row.created_at, updatedAt: row.updated_at } : null; }
function pgAccessTuple(row) { return row ? { userId: row.user_id, relation: row.relation, object: row.object, createdByAdminId: row.created_by_admin_id, createdAt: row.created_at } : null; }
function parseJson(value, fallback) { if (!value) return fallback; if (typeof value === "object") return value; try { return JSON.parse(String(value)); } catch { return fallback; } }
function normalizeBlocker(value) { return value && typeof value === "object" && !Array.isArray(value) && Object.keys(value).length > 0 ? value : null; }
