import { ENVIRONMENT_DEV } from "../protocol/index.mjs";

export const DEV_CODE_AGENT_PROVIDER_CONTRACT = Object.freeze({
  contractVersion: "v1",
  environment: ENVIRONMENT_DEV,
  codeAgentProvider: "codex-stdio",
  runtimeProvider: "openai-responses",
  backend: "hwlab-cloud-api/codex-app-server-stdio",
  fallbackBackend: "hwlab-cloud-api/openai-responses",
  model: "gpt-5.5",
  requiredEnv: Object.freeze([
    "OPENAI_API_KEY",
    "HWLAB_CODE_AGENT_OPENAI_BASE_URL"
  ]),
  secretRefs: Object.freeze([
    Object.freeze({
      env: "OPENAI_API_KEY",
      secretName: "hwlab-code-agent-provider",
      secretKey: "openai-api-key"
    })
  ]),
  egress: Object.freeze({
    env: "HWLAB_CODE_AGENT_OPENAI_BASE_URL",
    target: "dev-egress-proxy",
    defaultBaseUrl: "http://172.26.26.227:17680/v1/responses",
    forbiddenDirectBaseUrl: "https://api.openai.com/v1/responses",
    reason: "DEV cloud-api pods must use the D601 egress/proxy path for OpenAI Responses."
  }),
  codexHome: Object.freeze({
    path: "/codex-home",
    configMapName: "hwlab-code-agent-codex-config",
    configKey: "config.toml",
    secretName: "hwlab-code-agent-codex-auth",
    authKey: "auth.json",
    mountContract: "writable emptyDir CODEX_HOME with read-only config.toml/auth.json file mounts"
  }),
  noProxyRequired: Object.freeze([
    "hyueapi.com",
    ".hyueapi.com",
    "hyui.com",
    ".hyui.com",
    "127.0.0.1",
    "localhost",
    "::1",
    "api.minimaxi.com",
    ".minimaxi.com"
  ]),
  forbidden: Object.freeze({
    prodAllowed: false,
    secretPlaintextAllowed: false,
    directPublicOpenAiFromDevPod: false
  })
});

export function codeAgentSecretRefPlaceholder() {
  const ref = DEV_CODE_AGENT_PROVIDER_CONTRACT.secretRefs[0];
  return `secretRef:${ref.secretName}/${ref.secretKey}`;
}

export function inspectCodeAgentProviderManifestRefs({ deployEnv = {}, workloadEnv = {} } = {}) {
  const contract = DEV_CODE_AGENT_PROVIDER_CONTRACT;
  const secretRef = contract.secretRefs[0];
  const expectedSecretRef = codeAgentSecretRefPlaceholder();
  const requiredRuntimeEnv = codeAgentRequiredRuntimeEnv();
  const expectedValues = {
    HWLAB_CODE_AGENT_PROVIDER: contract.codeAgentProvider,
    HWLAB_CODE_AGENT_MODEL: contract.model,
    [contract.egress.env]: contract.egress.defaultBaseUrl,
    CODEX_HOME: contract.codexHome.path,
    NO_PROXY: contract.noProxyRequired.join(","),
    no_proxy: contract.noProxyRequired.join(","),
    [secretRef.env]: expectedSecretRef
  };
  const workloadInspection = inspectCodeAgentProviderWorkloadEnv(workloadEnv);
  const missingDeployEnv = requiredRuntimeEnv.filter((name) => !Object.hasOwn(deployEnv ?? {}, name));
  const deployMismatches = requiredRuntimeEnv
    .filter((name) => Object.hasOwn(deployEnv ?? {}, name) && !Object.is(deployEnv[name], expectedValues[name]))
    .map((name) => ({
      name,
      expected: name === secretRef.env ? expectedSecretRef : expectedValues[name],
      redacted: name === secretRef.env || name === contract.egress.env
    }));
  const missingSecretRefs = [];
  if (deployEnv?.[secretRef.env] !== expectedSecretRef || workloadInspection.secretRef.present !== true) {
    missingSecretRefs.push(`${secretRef.secretName}/${secretRef.secretKey}`);
  }
  const missingEgressContract = [];
  if (deployEnv?.[contract.egress.env] !== contract.egress.defaultBaseUrl || workloadInspection.egress.matchesDevProxy !== true) {
    missingEgressContract.push(`${contract.egress.env} must use ${contract.egress.target}`);
  }
  if (
    isForbiddenDirectOpenAiBaseUrl(deployEnv?.[contract.egress.env]) ||
    workloadInspection.egress.directPublicOpenAi === true
  ) {
    missingEgressContract.push(`${contract.egress.env} must not point directly at public api.openai.com`);
  }
  const missingCodexHomeContract = [];
  if (deployEnv?.CODEX_HOME !== contract.codexHome.path || workloadInspection.codexHome.present !== true) {
    missingCodexHomeContract.push(`CODEX_HOME must be ${contract.codexHome.path}`);
  }
  if (workloadInspection.codexHome.writableHomeMountPresent !== true) {
    missingCodexHomeContract.push(`${contract.codexHome.path} must be a writable volumeMount`);
  }
  if (workloadInspection.codexHome.emptyDirPresent !== true) {
    missingCodexHomeContract.push(`${contract.codexHome.path} must be backed by emptyDir`);
  }
  if (workloadInspection.codexHome.configMapPresent !== true) {
    missingCodexHomeContract.push(`${contract.codexHome.configMapName}/${contract.codexHome.configKey}`);
  }
  if (workloadInspection.codexHome.authSecretPresent !== true) {
    missingCodexHomeContract.push(`${contract.codexHome.secretName}/${contract.codexHome.authKey}`);
  }
  const missingNoProxyContract = [...new Set([
    ...noProxyMissing(deployEnv?.NO_PROXY, contract.noProxyRequired),
    ...noProxyMissing(deployEnv?.no_proxy, contract.noProxyRequired),
    ...workloadInspection.noProxy.missing
  ])];

  const ready =
    missingDeployEnv.length === 0 &&
    deployMismatches.length === 0 &&
    workloadInspection.ready === true &&
    missingSecretRefs.length === 0 &&
    missingEgressContract.length === 0 &&
    missingCodexHomeContract.length === 0 &&
    missingNoProxyContract.length === 0;

  return {
    contractVersion: contract.contractVersion,
    environment: contract.environment,
    provider: contract.codeAgentProvider,
    runtimeProvider: contract.runtimeProvider,
    backend: contract.backend,
    model: contract.model,
    status: ready ? "pass" : "blocked",
    ready,
    requiredEnv: requiredRuntimeEnv.map((name) => ({
      name,
      deployPresent: Object.hasOwn(deployEnv ?? {}, name),
      workloadPresent: workloadInspection.requiredEnv.find((entry) => entry.name === name)?.present === true,
      redacted: name === secretRef.env || name === contract.egress.env,
      source: name === secretRef.env ? "k8s-secret-ref" : "runtime-env"
    })),
    secretRef: {
      env: secretRef.env,
      secretName: secretRef.secretName,
      secretKey: secretRef.secretKey,
      deployPlaceholderPresent: deployEnv?.[secretRef.env] === expectedSecretRef,
      workloadSecretRefPresent: workloadInspection.secretRef.present === true,
      present: deployEnv?.[secretRef.env] === expectedSecretRef && workloadInspection.secretRef.present === true,
      redacted: true
    },
    egress: {
      env: contract.egress.env,
      target: contract.egress.target,
      deployPresent: Boolean(deployEnv?.[contract.egress.env]),
      workloadPresent: workloadInspection.egress.present,
      deployMatchesDevProxy: deployEnv?.[contract.egress.env] === contract.egress.defaultBaseUrl,
      workloadMatchesDevProxy: workloadInspection.egress.matchesDevProxy,
      directPublicOpenAi:
        isForbiddenDirectOpenAiBaseUrl(deployEnv?.[contract.egress.env]) ||
        workloadInspection.egress.directPublicOpenAi === true,
      valueRedacted: true
    },
    missingDeployEnv,
    missingWorkloadEnv: workloadInspection.missingEnv,
    deployMismatches,
    workloadMismatches: workloadInspection.mismatchedEnv,
    missingSecretRefs,
    missingEgressContract,
    missingCodexHomeContract,
    missingNoProxyContract,
    codexHome: workloadInspection.codexHome,
    noProxy: workloadInspection.noProxy,
    secretMaterialRead: false,
    valuesRedacted: true,
    providerConnected: false,
    fixtureEvidence: false
  };
}

export function inspectCodeAgentProviderWorkloadEnv(workloadEnv = {}) {
  const contract = DEV_CODE_AGENT_PROVIDER_CONTRACT;
  const secretRef = contract.secretRefs[0];
  const requiredRuntimeEnv = codeAgentRequiredRuntimeEnv();
  const expectedValues = {
    HWLAB_CODE_AGENT_PROVIDER: contract.codeAgentProvider,
    HWLAB_CODE_AGENT_MODEL: contract.model,
    [contract.egress.env]: contract.egress.defaultBaseUrl,
    CODEX_HOME: contract.codexHome.path,
    NO_PROXY: contract.noProxyRequired.join(","),
    no_proxy: contract.noProxyRequired.join(",")
  };
  const requiredEnv = requiredRuntimeEnv.map((name) => {
    const entry = getEnvEntry(workloadEnv, name);
    return {
      name,
      present: Boolean(entry),
      redacted: name === secretRef.env || name === contract.egress.env,
      source: name === secretRef.env ? "k8s-secret-ref" : "runtime-env"
    };
  });
  const missingEnv = requiredEnv.filter((entry) => !entry.present).map((entry) => entry.name);
  const mismatchedEnv = [];
  for (const [name, expected] of Object.entries(expectedValues)) {
    const entry = getEnvEntry(workloadEnv, name);
    if (entry && !Object.is(envEntryValue(entry), expected)) {
      mismatchedEnv.push({
        name,
        expected,
        redacted: name === contract.egress.env
      });
    }
  }

  const secretKeyRef = envEntrySecretKeyRef(getEnvEntry(workloadEnv, secretRef.env));
  const secretPresent =
    secretKeyRef?.name === secretRef.secretName &&
    secretKeyRef?.key === secretRef.secretKey;
  const baseUrl = envEntryValue(getEnvEntry(workloadEnv, contract.egress.env));
  const directPublicOpenAi = isForbiddenDirectOpenAiBaseUrl(baseUrl);
  const matchesDevProxy = baseUrl === contract.egress.defaultBaseUrl;
  const codexHomePresent = envEntryValue(getEnvEntry(workloadEnv, "CODEX_HOME")) === contract.codexHome.path;
  const noProxyMissingEntries = [...new Set([
    ...noProxyMissing(envEntryValue(getEnvEntry(workloadEnv, "NO_PROXY")), contract.noProxyRequired),
    ...noProxyMissing(envEntryValue(getEnvEntry(workloadEnv, "no_proxy")), contract.noProxyRequired)
  ])];
  const codexHome = inspectCodexHomeWorkloadMounts(workloadEnv);
  const ready =
    missingEnv.length === 0 &&
    mismatchedEnv.length === 0 &&
    secretPresent &&
    matchesDevProxy &&
    !directPublicOpenAi &&
    codexHome.present === true &&
    codexHome.configMapPresent === true &&
    codexHome.authSecretPresent === true &&
    noProxyMissingEntries.length === 0;

  return {
    contractVersion: contract.contractVersion,
    environment: contract.environment,
    provider: contract.codeAgentProvider,
    runtimeProvider: contract.runtimeProvider,
    backend: contract.backend,
    model: contract.model,
    status: ready ? "pass" : "blocked",
    ready,
    requiredEnv,
    missingEnv,
    mismatchedEnv,
    secretRef: {
      env: secretRef.env,
      secretName: secretRef.secretName,
      secretKey: secretRef.secretKey,
      present: secretPresent,
      redacted: true
    },
    egress: {
      env: contract.egress.env,
      target: contract.egress.target,
      present: Boolean(baseUrl),
      matchesDevProxy,
      directPublicOpenAi,
      valueRedacted: true
    },
    codexHome: {
      ...codexHome,
      present: codexHomePresent && codexHome.present === true
    },
    noProxy: {
      required: [...contract.noProxyRequired],
      missing: noProxyMissingEntries,
      present: noProxyMissingEntries.length === 0
    },
    secretMaterialRead: false,
    valuesRedacted: true,
    providerConnected: false
  };
}

export function buildCodeAgentProviderManifestPlaceholder() {
  const contract = DEV_CODE_AGENT_PROVIDER_CONTRACT;
  return {
    contractVersion: contract.contractVersion,
    environment: contract.environment,
    provider: contract.codeAgentProvider,
    runtimeProvider: contract.runtimeProvider,
    backend: contract.backend,
    model: contract.model,
    requiredEnv: [...contract.requiredEnv],
    secretRefs: contract.secretRefs.map((item) => ({ ...item })),
    egress: { ...contract.egress },
    codexHome: { ...contract.codexHome },
    noProxyRequired: [...contract.noProxyRequired],
    fixtureEvidence: {
      providerConnected: false,
      summary: "This manifest contract records provider env names, Secret/ConfigMap reference names, DEV egress policy, and Codex app-server mount policy only. It is not live provider evidence."
    }
  };
}

export function inspectCodeAgentProviderEnv(env = {}) {
  const contract = DEV_CODE_AGENT_PROVIDER_CONTRACT;
  const missingEnv = contract.requiredEnv.filter((name) => !hasEnvValue(env, name));
  const secretRef = contract.secretRefs[0];
  const baseUrl = firstNonEmpty(env.HWLAB_CODE_AGENT_OPENAI_BASE_URL);
  const directPublicOpenAi =
    baseUrl === contract.egress.forbiddenDirectBaseUrl ||
    /^https:\/\/api\.openai\.com\/v1\/responses\/?$/u.test(baseUrl);
  const egressReady = Boolean(baseUrl) && !directPublicOpenAi;
  const noProxyReady = noProxyMissing(env.NO_PROXY, contract.noProxyRequired).length === 0 &&
    noProxyMissing(env.no_proxy, contract.noProxyRequired).length === 0;
  const codexHomeReady = firstNonEmpty(env.CODEX_HOME) === contract.codexHome.path;
  const ready = missingEnv.length === 0 && egressReady && codexHomeReady && noProxyReady;

  return {
    contractVersion: contract.contractVersion,
    environment: contract.environment,
    provider: contract.runtimeProvider,
    model: firstNonEmpty(env.HWLAB_CODE_AGENT_MODEL, contract.model),
    backend: contract.backend,
    status: ready ? "available" : "blocked",
    ready,
    requiredEnv: contract.requiredEnv.map((name) => ({
      name,
      present: hasEnvValue(env, name),
      redacted: name === secretRef.env,
      source: name === secretRef.env ? "k8s-secret-ref" : "runtime-env"
    })),
    missingEnv,
    secretRefs: [
      {
        env: secretRef.env,
        secretName: secretRef.secretName,
        secretKey: secretRef.secretKey,
        present: hasEnvValue(env, secretRef.env),
        envInjected: hasEnvValue(env, secretRef.env),
        secretPresent: "not_observed_by_runtime",
        secretKeyPresent: "not_observed_by_runtime",
        redacted: true
      }
    ],
    egress: {
      env: contract.egress.env,
      present: hasEnvValue(env, contract.egress.env),
      target: contract.egress.target,
      baseUrlConfigured: Boolean(baseUrl),
      directPublicOpenAi,
      ready: egressReady,
      valueRedacted: true
    },
    codexHome: {
      path: contract.codexHome.path,
      present: codexHomeReady,
      configRef: `${contract.codexHome.configMapName}/${contract.codexHome.configKey}`,
      authRef: `${contract.codexHome.secretName}/${contract.codexHome.authKey}`,
      secretMaterialRead: false,
      valuesRedacted: true
    },
    noProxy: {
      required: [...contract.noProxyRequired],
      missing: [...new Set([
        ...noProxyMissing(env.NO_PROXY, contract.noProxyRequired),
        ...noProxyMissing(env.no_proxy, contract.noProxyRequired)
      ])],
      present: noProxyReady
    },
    safety: {
      devOnly: true,
      prodAllowed: contract.forbidden.prodAllowed,
      secretsRead: false,
      secretMaterialRead: false,
      valuesRedacted: true,
      directPublicOpenAiFromDevPod: directPublicOpenAi
    },
    blocker: ready ? null : codeAgentProviderBlocker({ missingEnv, directPublicOpenAi, baseUrl })
  };
}

function codeAgentProviderBlocker({ missingEnv, directPublicOpenAi, baseUrl }) {
  if (directPublicOpenAi) {
    return "DEV Code Agent OpenAI base URL points at public api.openai.com instead of the DEV egress/proxy path";
  }
  if (!baseUrl) {
    return "DEV Code Agent OpenAI base URL is missing; provider calls must use the DEV egress/proxy path";
  }
  return `Code Agent provider runtime config is missing ${missingEnv.join(", ")}`;
}

function hasEnvValue(env, name) {
  return typeof env?.[name] === "string" && env[name].trim().length > 0;
}

function firstNonEmpty(...values) {
  for (const value of values) {
    if (typeof value === "string" && value.trim()) return value.trim();
  }
  return "";
}

function codeAgentRequiredRuntimeEnv() {
  return [
    "HWLAB_CODE_AGENT_PROVIDER",
    "HWLAB_CODE_AGENT_MODEL",
    ...DEV_CODE_AGENT_PROVIDER_CONTRACT.requiredEnv
  ];
}

function getEnvEntry(env, name) {
  if (!env) return undefined;
  if (env instanceof Map) return env.get(name);
  if (Array.isArray(env)) return env.find((entry) => entry?.name === name);
  return env[name];
}

function envEntryValue(entry) {
  if (typeof entry === "string") return entry;
  if (entry && typeof entry === "object" && Object.hasOwn(entry, "value")) return entry.value;
  return undefined;
}

function envEntrySecretKeyRef(entry) {
  if (!entry || typeof entry !== "object") return null;
  return entry.valueFrom?.secretKeyRef ?? null;
}

function inspectCodexHomeWorkloadMounts(workloadEnv = {}) {
  const contract = DEV_CODE_AGENT_PROVIDER_CONTRACT;
  const volumeMounts = Array.isArray(workloadEnv.__volumeMounts) ? workloadEnv.__volumeMounts : [];
  const volumes = Array.isArray(workloadEnv.__volumes) ? workloadEnv.__volumes : [];
  const homeMount = volumeMounts.find((entry) => entry?.name === "hwlab-code-agent-codex-home" && entry?.mountPath === contract.codexHome.path);
  const writableHomeMount = homeMount && homeMount.readOnly !== true;
  const homeVolume = volumes.find((entry) =>
    entry?.name === "hwlab-code-agent-codex-home" &&
    entry?.emptyDir &&
    typeof entry.emptyDir === "object" &&
    !Array.isArray(entry.emptyDir)
  );
  const configMount = volumeMounts.find((entry) =>
    entry?.name === "hwlab-code-agent-codex-config" &&
    entry?.mountPath === `${contract.codexHome.path}/${contract.codexHome.configKey}` &&
    entry?.subPath === contract.codexHome.configKey &&
    entry?.readOnly === true
  );
  const authMount = volumeMounts.find((entry) =>
    entry?.name === "hwlab-code-agent-codex-auth" &&
    entry?.mountPath === `${contract.codexHome.path}/${contract.codexHome.authKey}` &&
    entry?.subPath === contract.codexHome.authKey &&
    entry?.readOnly === true
  );
  const configVolume = volumes.find((entry) =>
    entry?.name === "hwlab-code-agent-codex-config" &&
    entry?.configMap?.name === contract.codexHome.configMapName &&
    (entry.configMap.items ?? []).some((item) => item?.key === contract.codexHome.configKey && item?.path === contract.codexHome.configKey)
  );
  const authVolume = volumes.find((entry) =>
    entry?.name === "hwlab-code-agent-codex-auth" &&
    entry?.secret?.secretName === contract.codexHome.secretName &&
    (entry.secret.items ?? []).some((item) => item?.key === contract.codexHome.authKey && item?.path === contract.codexHome.authKey)
  );
  return {
    path: contract.codexHome.path,
    present: Boolean(writableHomeMount && homeVolume),
    writableHomeMountPresent: Boolean(writableHomeMount),
    emptyDirPresent: Boolean(homeVolume),
    configMapPresent: Boolean(configMount && configVolume),
    authSecretPresent: Boolean(authMount && authVolume),
    configMapName: contract.codexHome.configMapName,
    secretName: contract.codexHome.secretName,
    mountContract: contract.codexHome.mountContract,
    secretMaterialRead: false,
    valuesRedacted: true
  };
}

function noProxyMissing(value, required) {
  const entries = new Set(String(value ?? "")
    .split(/[,;\s]+/u)
    .map((item) => item.trim().toLowerCase())
    .filter(Boolean));
  return required.filter((item) => !entries.has(String(item).toLowerCase()));
}

function isForbiddenDirectOpenAiBaseUrl(value) {
  const baseUrl = firstNonEmpty(value);
  return (
    baseUrl === DEV_CODE_AGENT_PROVIDER_CONTRACT.egress.forbiddenDirectBaseUrl ||
    /^https:\/\/api\.openai\.com\/v1\/responses\/?$/u.test(baseUrl)
  );
}