// SPEC: PJ2026-01060505 Workbench Performance draft-2026-06-17-p0
// Verifies Cloud API backend RED metrics, Server-Timing, and AgentRun upstream timing privacy.

import assert from "node:assert/strict";
import { createServer as createHttpServer } from "node:http";
import { test } from "bun:test";

import { createBackendPerformanceStore, backendPerformanceRouteTemplate, withBackendPerformanceContext } from "./backend-performance.ts";
import { submitAgentRunChatTurn } from "./code-agent-agentrun-adapter.ts";
import { createCodeAgentTraceStore } from "./code-agent-trace-store.ts";
import { createCloudApiServer } from "./server.ts";
import { createCodeAgentChatResultStore } from "./server-code-agent-http.ts";

test("backend performance store templates routes and appends Cloud API metrics to loopback metrics", async () => {
  assert.equal(backendPerformanceRouteTemplate("/v1/agent/traces/trc_secret_0123456789abcdef?full=1"), "/v1/agent/traces/:id");
  assert.equal(backendPerformanceRouteTemplate("/api/v1/runs/run_0123456789abcdef/commands/cmd_0123456789abcdef/result"), "/api/v1/runs/:id/commands/:id/result");
  assert.equal(backendPerformanceRouteTemplate("/v1/admin/billing/users/12345/credits/adjust"), "/v1/admin/billing/users/:id/credits/adjust");

  const backendPerformanceStore = createBackendPerformanceStore({ env: { POD_NAMESPACE: "hwlab-v03", HWLAB_GITOPS_TARGET: "v03" } });
  const server = createCloudApiServer({ backendPerformanceStore, env: { POD_NAMESPACE: "hwlab-v03", HWLAB_GITOPS_TARGET: "v03" } });
  await new Promise<void>((resolve) => server.listen(0, "127.0.0.1", resolve));
  try {
    const address = server.address();
    assert.ok(address && typeof address === "object");
    const baseUrl = `http://127.0.0.1:${address.port}`;
    const summary = await fetch(`${baseUrl}/v1/web-performance/summary`);
    assert.equal(summary.status, 200);
    assert.match(summary.headers.get("server-timing") ?? "", /total;dur=/u);

    const metrics = await fetch(`${baseUrl}/v1/web-performance/metrics`);
    const text = await metrics.text();
    assert.equal(metrics.status, 200);
    assert.match(text, /hwlab_cloud_api_requests_total\{[^}]*route="\/v1\/web-performance\/summary"[^}]*status_class="2xx"[^}]*\} 1/u);
    assert.match(text, /hwlab_cloud_api_request_duration_seconds_count\{[^}]*route="\/v1\/web-performance\/summary"/u);
    assert.doesNotMatch(text, /trc_secret|0123456789abcdef/u);
  } finally {
    await new Promise<void>((resolve, reject) => server.close((error) => error ? reject(error) : resolve()));
  }
});

test("backend performance records Code Agent trace handler phases without high-cardinality labels", async () => {
  const traceId = "trc_backend_phase_trace";
  const runId = "run_backend_phase";
  const commandId = "cmd_backend_phase";
  const traceStore = createCodeAgentTraceStore();
  const codeAgentChatResults = createCodeAgentChatResultStore();
  traceStore.append(traceId, { type: "message", role: "assistant", label: "assistant:start", sourceSeq: 1, commandId });
  traceStore.append(traceId, { type: "result", status: "completed", terminal: true, label: "result:completed", sourceSeq: 2, commandId });
  codeAgentChatResults.set(traceId, {
    status: "completed",
    conversationId: "cnv_backend_phase",
    sessionId: "ses_backend_phase",
    threadId: "thr_backend_phase",
    ownerUserId: "usr_backend_phase",
    updatedAt: "2026-06-18T00:00:00.000Z",
    agentRun: {
      adapter: "agentrun-v01",
      runId,
      commandId,
      terminalStatus: "completed",
      lastSeq: 2
    },
    finalResponse: {
      text: "done",
      traceId,
      status: "completed",
      updatedAt: "2026-06-18T00:00:00.000Z"
    },
    traceSummary: {
      source: "agentrun-command-result",
      terminalStatus: "completed",
      eventCount: 2,
      updatedAt: "2026-06-18T00:00:00.000Z"
    }
  });
  const backendPerformanceStore = createBackendPerformanceStore({ env: { POD_NAMESPACE: "hwlab-v03", HWLAB_GITOPS_TARGET: "v03" } });
  const accessController = {
    required: true,
    async authenticate() {
      return { ok: true, actor: { id: "usr_backend_phase", role: "user" }, session: { id: "web_backend_phase" } };
    },
    async getAgentSessionByTraceId(requestedTraceId: string) {
      assert.equal(requestedTraceId, traceId);
      return {
        id: "ses_backend_phase",
        sessionId: "ses_backend_phase",
        projectId: "prj_hwpod_workbench",
        ownerUserId: "usr_backend_phase",
        ownerRole: "user",
        session: {}
      };
    }
  };
  const server = createCloudApiServer({ backendPerformanceStore, traceStore, codeAgentChatResults, accessController, env: { POD_NAMESPACE: "hwlab-v03", HWLAB_GITOPS_TARGET: "v03" } });
  await new Promise<void>((resolve) => server.listen(0, "127.0.0.1", resolve));
  try {
    const address = server.address();
    assert.ok(address && typeof address === "object");
    const baseUrl = `http://127.0.0.1:${address.port}`;
    const trace = await fetch(`${baseUrl}/v1/agent/traces/${traceId}?projectId=prj_hwpod_workbench&limit=1`);
    assert.equal(trace.status, 200);
    const serverTiming = trace.headers.get("server-timing") ?? "";
    assert.match(serverTiming, /trace-project-check;dur=/u);
    assert.match(serverTiming, /trace-paginate;dur=/u);
    assert.match(serverTiming, /total;dur=/u);
    const payload = await trace.json();
    assert.equal(payload.range.returned, 1);

    const metrics = await fetch(`${baseUrl}/v1/web-performance/metrics`);
    const text = await metrics.text();
    assert.equal(metrics.status, 200);
    assert.match(text, /hwlab_cloud_api_request_phase_duration_seconds_count\{[^}]*route="\/v1\/agent\/traces\/:id"[^}]*phase="trace_project_check"[^}]*\} 1/u);
    assert.match(text, /hwlab_cloud_api_request_phase_duration_seconds_count\{[^}]*route="\/v1\/agent\/traces\/:id"[^}]*phase="trace_paginate"[^}]*\} 1/u);
    assert.doesNotMatch(text, /trc_backend_phase_trace|run_backend_phase|cmd_backend_phase|ses_backend_phase|cnv_backend_phase/u);
  } finally {
    await new Promise<void>((resolve, reject) => server.close((error) => error ? reject(error) : resolve()));
  }
});

test("AgentRun adapter records upstream timing through backend performance context", async () => {
  const calls: Array<{ method?: string; path: string; body?: any }> = [];
  const agentRunServer = createHttpServer(async (request, response) => {
    const url = new URL(request.url || "/", "http://127.0.0.1");
    const chunks: Buffer[] = [];
    for await (const chunk of request) chunks.push(Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk));
    const body = chunks.length ? JSON.parse(Buffer.concat(chunks).toString("utf8")) : null;
    calls.push({ method: request.method, path: url.pathname, body });
    const send = (data: Record<string, unknown>) => {
      response.writeHead(200, { "content-type": "application/json" });
      response.end(`${JSON.stringify({ ok: true, data, traceId: "trc_backend_perf" })}\n`);
    };
    if (request.method === "POST" && url.pathname === "/api/v1/sessions") return send({ ok: true });
    if (request.method === "POST" && url.pathname === "/api/v1/runs") return send({ id: "run_backend_perf", status: "pending", backendProfile: "codex", sessionRef: body.sessionRef, resourceBundleRef: body.resourceBundleRef });
    if (request.method === "POST" && url.pathname === "/api/v1/runs/run_backend_perf/commands") return send({ id: "cmd_backend_perf", runId: "run_backend_perf", state: "pending", type: "turn", seq: 1 });
    if (request.method === "POST" && url.pathname === "/api/v1/runs/run_backend_perf/runner-jobs") return send({ action: "create-kubernetes-job", runId: "run_backend_perf", commandId: body.commandId, attemptId: "attempt_backend_perf", runnerId: "runner_backend_perf", namespace: "agentrun-v01", jobName: "agentrun-v01-runner-backend-perf" });
    response.writeHead(404, { "content-type": "application/json" });
    response.end(`${JSON.stringify({ ok: false, message: `unexpected ${request.method} ${url.pathname}` })}\n`);
  });
  await new Promise<void>((resolve) => agentRunServer.listen(0, "127.0.0.1", resolve));
  try {
    const address = agentRunServer.address();
    assert.ok(address && typeof address === "object");
    const store = createBackendPerformanceStore({ env: { POD_NAMESPACE: "hwlab-v03", HWLAB_GITOPS_TARGET: "v03" } });
    const context = store.createManualContext({ route: "/v1/agent/chat", method: "POST" });
    const traceStore = createCodeAgentTraceStore();

    const result = await withBackendPerformanceContext(context, () => submitAgentRunChatTurn({
      traceId: "trc_backend_perf",
      traceStore,
      params: {
        message: "backend perf smoke",
        ownerUserId: "usr_backend_perf",
        projectId: "prj_hwpod_workbench",
        conversationId: "cnv_backend_perf",
        sessionId: "ses_backend_perf",
        providerProfile: "codex-api"
      },
      options: {
        env: {
          HWLAB_CODE_AGENT_ADAPTER: "agentrun-v01",
          AGENTRUN_MGR_URL: `http://127.0.0.1:${address.port}`,
          HWLAB_CODE_AGENT_AGENTRUN_ALLOW_NON_K3S_URL: "1",
          HWLAB_CODE_AGENT_AGENTRUN_PROVIDER_ID: "D601",
          HWLAB_CODE_AGENT_AGENTRUN_SOURCE_COMMIT: "0123456789abcdef0123456789abcdef01234567",
          HWLAB_CODE_AGENT_DEFAULT_PROVIDER_PROFILE: "codex-api",
          HWLAB_RUNTIME_API_URL: "http://hwlab-cloud-api.hwlab-v03.svc.cluster.local:6667",
          HWLAB_RUNTIME_WEB_URL: "http://hwlab-cloud-web.hwlab-v03.svc.cluster.local:8080",
          HWLAB_RUNTIME_NAMESPACE: "hwlab-v03",
          HWLAB_RUNTIME_LANE: "v03",
          HWLAB_RUNTIME_ENDPOINT_LOCKED: "1",
          HWLAB_CODE_AGENT_ASSEMBLED_RUNTIME: "1",
          UNIDESK_MAIN_SERVER_IP: "http://74.48.78.17:18081"
        },
        accessController: {
          async codeAgentToolCapabilitiesForOwner() { return { contractVersion: "admin-access-v1", tools: {} }; },
          store: { async findActiveDefaultApiKeyForUser() { return { displaySecret: "hwl_live_owner_secret" }; } }
        }
      }
    }));

    assert.equal(result.status, "running");
    assert.ok(calls.some((call) => call.path === "/api/v1/runs/run_backend_perf/runner-jobs"));
    const text = store.metricsText();
    assert.match(text, /hwlab_cloud_api_upstream_duration_seconds_count\{[^}]*component="agentrun"[^}]*route="\/api\/v1\/runs"[^}]*\} 1/u);
    assert.match(text, /hwlab_cloud_api_upstream_duration_seconds_count\{[^}]*component="agentrun"[^}]*route="\/api\/v1\/runs\/:id\/commands"[^}]*\} 1/u);
    assert.match(text, /hwlab_cloud_api_upstream_duration_seconds_count\{[^}]*component="agentrun"[^}]*route="\/api\/v1\/runs\/:id\/runner-jobs"[^}]*\} 1/u);
    assert.doesNotMatch(text, /run_backend_perf|cmd_backend_perf|ses_backend_perf|cnv_backend_perf/u);
  } finally {
    await new Promise<void>((resolve, reject) => agentRunServer.close((error) => error ? reject(error) : resolve()));
  }
});