import assert from "node:assert/strict";
import { spawnSync } from "node:child_process";
import { readFileSync } from "node:fs";
import { fileURLToPath } from "node:url";
import test from "node:test";

const routeSource = readFileSync(
  new URL("../src/app/api/reports/[reportId]/professional-reference/route.ts", import.meta.url),
  "utf8",
);

const frontendRoot = fileURLToPath(new URL("../", import.meta.url));

function executeReadyReportExport() {
  const script = String.raw`
    import { mock } from "node:test";
    import { pathToFileURL } from "node:url";
    import { Agent } from "@mastra/core/agent";

    const moduleUrl = (path) => pathToFileURL(process.cwd() + "/" + path).href;
    // Node 22 ignores the unsupported exports mock option; keep the route aliases explicit.
    mock.module("@/lib/personal-report-entitlement", { namedExports: {
      checkSameOrigin: () => ({ ok: true }),
      resolveAllowedReportOrigins: () => [],
    }});
    mock.module("@/lib/personal-report-service", { namedExports: {
      createSupabasePersonalReportService: () => ({
        getOwnedById: async () => ({ status: "ready", requestId: "123e4567-e89b-12d3-a456-426614174111" }),
      }),
    }});
    mock.module("@/lib/supabase/admin", { namedExports: {
      createAdminSupabaseClient: () => { throw new Error("admin unused in this unit test"); },
    }});
    mock.module("@/lib/report-candidate-range", { namedExports: {
      loadReportCandidateRange: async () => null,
    }});
    mock.module("@/lib/personal-report-longform-appendix", { namedExports: {
      LONGFORM_APPENDIX_TABLE: "personal_report_longform_appendices",
      parseLongformAppendixRow: () => null,
      nextLongformAppendixState: () => ({ status: "ready", attemptCount: 0, markdown: "# Professional reference", contentSha256: "ab", lastErrorCode: null }),
    }});
    mock.module("@/lib/supabase/config", { namedExports: {
      isSupabaseConfigurationError: () => false,
    }});
    const profileQuery = {
      select() { return this; },
      eq() { return this; },
      async maybeSingle() { return { data: {
        birth_date: "1990-01-02",
        reported_birth_time: "03:04",
        latitude: 39.9,
        longitude: 116.4,
        timezone_offset: 8,
        ayanamsa: "lahiri",
      }, error: null }; },
    };
    mock.module("@/lib/supabase/server", { namedExports: {
      createServerSupabaseClient: async () => ({
        auth: { getUser: async () => ({ data: { user: { id: "user-1" } }, error: null }) },
        from: () => profileQuery,
      }),
    }});

    let modelCalls = 0;
    Agent.prototype.generate = async () => {
      modelCalls += 1;
      throw new Error("professional export must not call a model");
    };
    let telemetryEvents = 0;
    console.info = (...args) => {
      if (args[0] === "[personal-report-agent]") telemetryEvents += 1;
    };
    const upstream = [];
    globalThis.fetch = async (input, init) => {
      upstream.push({
        url: String(input),
        method: init?.method,
        body: JSON.parse(String(init?.body)),
      });
      return new Response(JSON.stringify({ format: "markdown", markdown: "# Professional reference" }), {
        status: 200,
        headers: { "content-type": "application/json" },
      });
    };

    const { POST } = await import(moduleUrl("src/app/api/reports/[reportId]/professional-reference/route.ts"));
    const response = await POST(
      new Request("https://staging.jyotisha.chat/api/reports/123e4567-e89b-12d3-a456-426614174000/professional-reference", {
        method: "POST",
        headers: { origin: "https://staging.jyotisha.chat" },
      }),
      { params: Promise.resolve({ reportId: "123e4567-e89b-12d3-a456-426614174000" }) },
    );
    console.log(JSON.stringify({
      status: response.status,
      body: await response.json(),
      modelCalls,
      telemetryEvents,
      upstream,
    }));
  `;
  const result = spawnSync(process.execPath, [
    "--experimental-test-module-mocks",
    "--import",
    "tsx",
    "--input-type=module",
    "--eval",
    script,
  ], { cwd: frontendRoot, encoding: "utf8" });
  assert.equal(result.status, 0, result.stderr || result.stdout);
  return JSON.parse(result.stdout.trim()) as {
    status: number;
    body: { format: string; markdown: string };
    modelCalls: number;
    telemetryEvents: number;
    upstream: Array<{ url: string; method: string; body: Record<string, unknown> }>;
  };
}

test("professional reference route authenticates, checks origin, owner and ready status", () => {
  assert.match(routeSource, /createServerSupabaseClient/);
  assert.match(routeSource, /supabase\.auth\.getUser\(\)/);
  assert.match(routeSource, /checkSameOrigin/);
  assert.match(routeSource, /resolveAllowedReportOrigins/);
  assert.match(routeSource, /getOwnedById\(user\.id, reportId\)/);
  assert.match(routeSource, /report\.status !== "ready"/);
  assert.match(routeSource, /status: 401/);
  assert.match(routeSource, /status: 403/);
  assert.match(routeSource, /status: 404/);
  assert.match(routeSource, /status: 409/);
});

test("birth data stays server-owned and the route calls only the public Python export", () => {
  assert.match(routeSource, /\.from\("profiles"\)/);
  assert.match(routeSource, /select\(ACCOUNT_BIRTH_SELECT\)/);
  assert.match(routeSource, /globalBirthProfileFromAccountRow/);
  assert.match(routeSource, /\/api\/professional_report_reference/);
  assert.match(routeSource, /format: "markdown"/);
  assert.match(routeSource, /packs: \["full"\]/);
  assert.match(routeSource, /target_year/);
  assert.match(routeSource, /birth_time_accuracy/);
  assert.match(routeSource, /loadReportCandidateRange/);
  assert.match(routeSource, /LONGFORM_APPENDIX_TABLE/);
  assert.match(routeSource, /from "@\/lib\/personal-report-longform-appendix"/);
  assert.doesNotMatch(routeSource, /request\.json\(/);
  assert.doesNotMatch(routeSource, /mastra|writer|billing|personal_report_sections/i);
  assert.doesNotMatch(routeSource, /from\("personal_reports"\)/);
});

test("ready report export calls the Python endpoint without model calls or writer telemetry", () => {
  const result = executeReadyReportExport();
  assert.equal(result.status, 200);
  assert.deepEqual(result.body, { format: "markdown", markdown: "# Professional reference" });
  assert.equal(result.modelCalls, 0);
  assert.equal(result.telemetryEvents, 0);
  assert.equal(result.upstream.length, 1);
  assert.equal(result.upstream[0].url, "http://127.0.0.1:5200/api/professional_report_reference");
  assert.equal(result.upstream[0].method, "POST");
  assert.equal(result.upstream[0].body.year, 1990);
  assert.equal(result.upstream[0].body.month, 1);
  assert.equal(result.upstream[0].body.day, 2);
  assert.equal(result.upstream[0].body.hour, 3);
  assert.equal(result.upstream[0].body.minute, 4);
  assert.equal(result.upstream[0].body.lat, 39.9);
  assert.equal(result.upstream[0].body.lon, 116.4);
  assert.equal(result.upstream[0].body.tz, 8);
  assert.equal(result.upstream[0].body.ayanamsa, "lahiri");
  assert.equal(result.upstream[0].body.format, "markdown");
  assert.deepEqual(result.upstream[0].body.packs, ["full"]);
  assert.match(String(result.upstream[0].body.today), /^\d{4}-\d{2}-\d{2}$/);
  assert.equal(result.upstream[0].body.target_year, Number(String(result.upstream[0].body.today).slice(0, 4)));
  assert.equal(result.upstream[0].body.age, Number(result.upstream[0].body.target_year) - 1990);
  assert.equal(result.upstream[0].body.birth_time_accuracy, "confirmed");
  assert.equal(result.upstream[0].body.candidate_range, undefined);
});

test("busy upstream responses preserve 429 and Retry-After", () => {
  assert.match(routeSource, /upstream\.status/);
  assert.match(routeSource, /upstream\.headers\.get\("retry-after"\)/);
  assert.match(routeSource, /"Retry-After": retryAfter/);
});