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(cached: boolean) {
  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;
    const cached = ${cached ? "true" : "false"};
    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/personal-report-longform-appendix", { namedExports: {
      LONGFORM_APPENDIX_TABLE: "personal_report_longform_appendices",
      parseLongformAppendixRow: () => cached
        ? { status: "ready", markdown: "# Professional reference" }
        : null,
      nextLongformAppendixState: () => ({ status: "ready", attemptCount: 0, markdown: "# Professional reference", contentSha256: "ab", lastErrorCode: null }),
    }});
    mock.module("@/lib/personal-report-longform-copy", { namedExports: {
      PERSONAL_REPORT_LEGACY_PLACEHOLDER: "旧版本报告，请重新生成",
    }});
    mock.module("@/lib/supabase/config", { namedExports: {
      isSupabaseConfigurationError: () => false,
    }});
    mock.module("@/lib/supabase/server", { namedExports: {
      createServerSupabaseClient: async () => ({
        auth: { getUser: async () => ({ data: { user: { id: "user-1" } }, error: null }) },
        from: () => ({
          select() { return this; },
          eq() { return this; },
          async maybeSingle() { return { data: cached ? { markdown: "# Professional reference" } : null, error: null }; },
        }),
      }),
    }});

    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 });
      throw new Error("cache-only export must not call the engine");
    };

    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: Record<string, unknown>;
    modelCalls: number;
    telemetryEvents: number;
    upstream: Array<{ url: string; method: string }>;
  };
}

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/);
  assert.match(routeSource, /status: 410/);
});

test("ready export is cache-only and never calls the writer or Python engine", () => {
  assert.match(routeSource, /LONGFORM_APPENDIX_TABLE/);
  assert.match(routeSource, /from "@\/lib\/personal-report-longform-appendix"/);
  assert.match(routeSource, /PERSONAL_REPORT_LEGACY_PLACEHOLDER/);
  assert.doesNotMatch(routeSource, /request\.json\(/);
  assert.doesNotMatch(routeSource, /mastra|writer|billing|personal_report_sections/i);
  assert.doesNotMatch(routeSource, /from\("personal_reports"\)/);
  assert.doesNotMatch(routeSource, /\/api\/professional_report_reference/);
  assert.doesNotMatch(routeSource, /\.from\("profiles"\)/);
  assert.doesNotMatch(routeSource, /loadReportCandidateRange/);
});

test("cached appendix returns markdown without model or engine calls", () => {
  const result = executeReadyReportExport(true);
  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, 0);
});

test("missing appendix is a retired report, not an on-demand generation", () => {
  const result = executeReadyReportExport(false);
  assert.equal(result.status, 410);
  assert.equal(result.body.error, "旧版本报告，请重新生成");
  assert.equal(result.body.code, "legacy_report");
  assert.equal(result.modelCalls, 0);
  assert.equal(result.upstream.length, 0);
});