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

export const DEV_CODE_AGENT_PROVIDER_CONTRACT = Object.freeze({
  contractVersion: "v1",
  environment: ENVIRONMENT_DEV,
  provider: "openai",
  runtimeProvider: "openai-responses",
  backend: "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."
  }),
  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 buildCodeAgentProviderManifestPlaceholder() {
  const contract = DEV_CODE_AGENT_PROVIDER_CONTRACT;
  return {
    contractVersion: contract.contractVersion,
    environment: contract.environment,
    provider: contract.provider,
    runtimeProvider: contract.runtimeProvider,
    backend: contract.backend,
    model: contract.model,
    requiredEnv: [...contract.requiredEnv],
    secretRefs: contract.secretRefs.map((item) => ({ ...item })),
    egress: { ...contract.egress },
    fixtureEvidence: {
      providerConnected: false,
      summary: "This manifest contract records provider env names, Secret reference names, and DEV egress 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 ready = missingEnv.length === 0 && egressReady;

  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
    },
    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 "";
}