import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import test from "node:test";

import { resolveServerOwnedChartBirth } from "../src/lib/chart-birth-truth.ts";
import { prepareChartViewProfile } from "../src/lib/chart-view-profile-read.ts";
import { safeParseReportDocument } from "../src/lib/personal-report-contract.ts";
import { buildLongformCoverDocument } from "../src/lib/personal-report-longform-cover.ts";
import { loadReportWorkerProfile } from "../src/lib/personal-report-worker-subject.ts";
import {
  REPORT_BIRTH_FINGERPRINT_KEY,
  readReportBirthFingerprint,
  reportCoverSubject,
  reportDocumentBirthFingerprint,
  stampReportBirthFingerprint,
  subjectBirthFingerprint,
  withReportBirthFingerprint,
} from "../src/lib/report-birth-binding.ts";

// Report cover binding, product decision A (TASK-birth-sky-followup-20260928 F1/F2).
// Fictional sample birth only: 1994-05-18 07:40 UTC+8, 30.27N 120.15E.

const storedSelf = {
  name: "虚构甲",
  birth_date: "1994-05-18",
  reported_birth_time: "07:40:00",
  birth_time_source: "family_exact",
  birth_time_status: "reported",
  birth_place_label: "虚构城",
  latitude: 30.27,
  longitude: 120.15,
  timezone_offset: 8,
  timezone_id: "Asia/Shanghai",
  ayanamsa: "lahiri",
};

const routeSource = readFileSync(new URL("../src/app/api/reports/route.ts", import.meta.url), "utf8");
const itemRouteSource = readFileSync(new URL("../src/app/api/reports/[reportId]/route.ts", import.meta.url), "utf8");
const workerSource = readFileSync(new URL("../src/lib/personal-report-worker.ts", import.meta.url), "utf8");
const longformSource = readFileSync(new URL("../src/lib/personal-report-longform-generate.ts", import.meta.url), "utf8");
const routeCoreSource = readFileSync(new URL("../src/lib/personal-report-route-core.ts", import.meta.url), "utf8");
const generationSource = readFileSync(new URL("../src/lib/personal-report-generation.ts", import.meta.url), "utf8");

function fakeSupabase(rows: Readonly<{ profiles?: Record<string, unknown> | null }>) {
  return {
    from(table: string) {
      const query = {
        select: () => query,
        eq: () => query,
        maybeSingle: async () => ({
          data: table === "profiles" ? (rows.profiles ?? null) : { rectification_case_id: null },
          error: null,
        }),
      };
      return query;
    },
  };
}

test("the report fingerprint is the chart page's profileFingerprint (same function, stored row)", async () => {
  const withoutOffset = { ...storedSelf, timezone_offset: null };
  const filled = { ...withoutOffset, timezone_offset: 8 };
  const chartView = await prepareChartViewProfile({ row: withoutOffset, resolveTimezone: async () => filled });
  assert.equal(chartView.ok, true);
  assert.equal(subjectBirthFingerprint(withoutOffset), chartView.birth.fingerprint);
  // The in-memory timezone fill changes the fingerprint, so it must be taken before the fill.
  assert.notEqual(resolveServerOwnedChartBirth(filled).fingerprint, chartView.birth.fingerprint);
  const stamped = stampReportBirthFingerprint(withoutOffset, filled);
  assert.equal(readReportBirthFingerprint(stamped), chartView.birth.fingerprint);
  assert.match(String((stamped as Record<string, unknown>)[REPORT_BIRTH_FINGERPRINT_KEY]), /^[0-9a-f]{32}$/);
});

test("worker profile loader stamps the stored-row fingerprint before the timezone fill", async () => {
  const profile = await loadReportWorkerProfile(fakeSupabase({ profiles: storedSelf }), "user-1", "self");
  assert.equal(readReportBirthFingerprint(profile), subjectBirthFingerprint(storedSelf));
  assert.equal((profile as Record<string, unknown>).latitude, 30.27, "the generators still read the same row");
});

test("every generation path writes subject.birthFingerprint from the stamped profile", () => {
  // POST /api/reports (inline and queued create) stamps before the timezone fill.
  assert.match(routeSource, /profile = stampReportBirthFingerprint\(\s*resolved\.row,\s*await resolveMissingBirthTimezoneOffset\(resolved\.row/);
  // Inline route-core generation, the queued writer and the queued longform all pass it on.
  assert.match(routeCoreSource, /birthFingerprint: readReportBirthFingerprint\(profile\),/);
  assert.match(workerSource, /birthFingerprint: readReportBirthFingerprint\(profile\),/);
  assert.match(longformSource, /birthFingerprint: readReportBirthFingerprint\(profile\),/);
  // Both document assemblies (single-call and sectioned) stamp before the guard and the final parse.
  assert.equal(generationSource.match(/applyReportGuard\(withReportBirthFingerprint\(candidate, deps\.birthFingerprint\)/g)?.length, 2);
  // Never into the evidence bundle the model reads.
  assert.doesNotMatch(generationSource, /bundle[^\n]*birthFingerprint/);
});

test("longform cover document carries the fingerprint and still parses; without it nothing is added", () => {
  const input = {
    report: {
      id: "123e4567-e89b-12d3-a456-426614174000",
      reportType: "personal_full" as const,
      presentationMode: "default" as const,
      depth: "standard" as const,
      requestedThemes: ["career"],
      skillName: "jyotish-vedic-astrology",
      skillVersion: "6.9.14",
      skillSourceCommit: null,
      skillSnapshotSha256: "ab".repeat(32),
    },
    subject: { displayName: "虚构甲", birthTimeStatus: "reported" as const, birthPlaceLabel: "虚构城" },
    markdown: "# 个人长报告\n\n## 摘要\n\n事业方向保持观察。\n",
    generatedAt: "2026-09-28T00:00:00.000Z",
  };
  const fingerprint = subjectBirthFingerprint(storedSelf);
  const bound = buildLongformCoverDocument({ ...input, birthFingerprint: fingerprint });
  assert.equal(bound.subject.birthFingerprint, fingerprint);
  assert.equal(reportDocumentBirthFingerprint(bound), fingerprint);
  const legacy = buildLongformCoverDocument(input);
  assert.equal("birthFingerprint" in legacy.subject, false);
  assert.equal(reportDocumentBirthFingerprint(legacy), null);
});

test("documents without the field (old reports) still parse; a malformed fingerprint does not", () => {
  const document = buildLongformCoverDocument({
    report: {
      id: "123e4567-e89b-12d3-a456-426614174000",
      reportType: "personal_full",
      presentationMode: "default",
      depth: "standard",
      requestedThemes: ["career"],
      skillName: "jyotish-vedic-astrology",
      skillVersion: "6.9.14",
      skillSourceCommit: null,
      skillSnapshotSha256: "ab".repeat(32),
    },
    subject: { displayName: "虚构甲", birthTimeStatus: "reported", birthPlaceLabel: "虚构城" },
    markdown: "# 个人长报告\n\n## 摘要\n\n事业方向保持观察。\n",
    generatedAt: "2026-09-28T00:00:00.000Z",
  });
  assert.equal(safeParseReportDocument(document).ok, true);
  assert.equal(safeParseReportDocument(withReportBirthFingerprint(document, "a".repeat(32))).ok, true);
  assert.equal(safeParseReportDocument({ ...document, subject: { ...document.subject, birthFingerprint: "1994-05-18" } }).ok, false);
  assert.equal(withReportBirthFingerprint(document, undefined), document, "no fingerprint → untouched");
});

test("coverSubject: only a matching fingerprint yields the subject id, self when chart_profile_id is null", () => {
  const fp = "a".repeat(32);
  assert.equal(reportCoverSubject({ chartProfileId: null, storedFingerprint: fp, currentFingerprint: fp }), "self");
  assert.equal(reportCoverSubject({ chartProfileId: "11111111-1111-4111-8111-111111111111", storedFingerprint: fp, currentFingerprint: fp }), "11111111-1111-4111-8111-111111111111");
  assert.equal(reportCoverSubject({ chartProfileId: null, storedFingerprint: fp, currentFingerprint: "b".repeat(32) }), null);
  assert.equal(reportCoverSubject({ chartProfileId: null, storedFingerprint: null, currentFingerprint: fp }), null);
  assert.equal(reportCoverSubject({ chartProfileId: null, storedFingerprint: fp, currentFingerprint: null }), null);
});

test("GET /api/reports/:id compares on the server through the chart page's subject loader", () => {
  assert.match(itemRouteSource, /loadCurrentBirthFingerprint: async \(ownerId: string, subjectId: string\) => \(\s*subjectBirthFingerprint\(\(await loadSubjectBirth\(supabase, ownerId, subjectId\)\)\.row\)/);
  assert.match(routeCoreSource, /reportDocumentBirthFingerprint\(row\.reportDocument\)/);
});