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

import { birthSkyResponseSchema } from "../src/lib/birth-sky/contract.ts";
import { assembleBirthSky, type BirthSkyDeps, type BirthSkyEngineBody } from "../src/lib/birth-sky/service-core.ts";
import { ConsultationSubjectError, resolveSubjectBirth } from "../src/lib/subject-birth.ts";
import { birthSkyGolden } from "./birth-sky-test-support.ts";

const routeSource = readFileSync(new URL("../src/app/api/birth-sky/route.ts", import.meta.url), "utf8");
const serviceSource = readFileSync(new URL("../src/lib/birth-sky/service.ts", import.meta.url), "utf8");
const coreSource = readFileSync(new URL("../src/lib/birth-sky/service-core.ts", import.meta.url), "utf8");

const otherId = "22222222-2222-4222-8222-222222222222";

// Fictional sample from the brief; never a real person.
const selfRow = {
  name: "虚构甲",
  birth_date: "1994-05-18",
  reported_birth_time: "07:40:00",
  birth_time_status: "reported",
  latitude: 30.27,
  longitude: 120.15,
  timezone_offset: 8,
  timezone_id: "Asia/Shanghai",
  birth_place_label: "浙江省 · 杭州市 · 西湖区",
  ayanamsa: "lahiri",
};

function deps(overrides: Partial<BirthSkyDeps> = {}) {
  const engineCalls: BirthSkyEngineBody[] = [];
  const base: BirthSkyDeps = {
    userId: "user-1",
    subjectId: "self",
    loadSubject: (userId, subjectId) => resolveSubjectBirth({
      userId,
      subjectId,
      loadSelfRow: async () => selfRow,
      loadOtherRow: async (id) => ({ ...selfRow, id, user_id: "someone-else", role: "other" }),
    }),
    postEngine: async (body) => {
      engineCalls.push(body);
      return birthSkyGolden.responses.day;
    },
  };
  return { deps: { ...base, ...overrides }, engineCalls };
}

test("signed-out requests are 401 and never reach the engine", async () => {
  const { deps: input, engineCalls } = deps({ userId: null });
  const result = await assembleBirthSky(input);
  assert.equal(result.httpStatus, 401);
  assert.deepEqual(result.body, { status: "unauthenticated" });
  assert.equal(engineCalls.length, 0);
});

test("someone else's subject is 404 and never reaches the engine", async () => {
  const { deps: input, engineCalls } = deps({ subjectId: otherId });
  const result = await assembleBirthSky(input);
  assert.equal(result.httpStatus, 404);
  assert.deepEqual(result.body, { status: "not_found" });
  assert.equal(engineCalls.length, 0);
});

test("an incomplete profile says so, so the page shows no entry", async () => {
  const { deps: incompleteSelf } = deps({
    loadSubject: (userId, subjectId) => resolveSubjectBirth({
      userId,
      subjectId,
      loadSelfRow: async () => ({ ...selfRow, latitude: null, longitude: null }),
      loadOtherRow: async () => null,
    }),
  });
  const self = await assembleBirthSky(incompleteSelf);
  assert.equal(self.httpStatus, 200);
  assert.deepEqual(self.body, { status: "birth_profile_incomplete" });

  const { deps: incompleteOther, engineCalls } = deps({
    loadSubject: async () => { throw new ConsultationSubjectError("subject_incomplete"); },
  });
  const other = await assembleBirthSky(incompleteOther);
  assert.deepEqual(other.body, { status: "birth_profile_incomplete" });
  assert.equal(engineCalls.length, 0);
});

// 原值: the JSON carries no date / time / place key and none of 1994, 07:40, 30.27, 120.15, 虚构, Asia/Shanghai.
// 新值: date, time and city appear only inside the finished `caption` string; outside it the JSON is unchanged,
//       and no key or value anywhere carries coordinates, timezone, district, province or name.
// 原因: TASK-birth-sky-polish-20260928 P2 — product decided the cover prints date + time + city.
test("a complete profile returns the contract; birth data leaves only as the caption line", async () => {
  const { deps: input, engineCalls } = deps();
  const result = await assembleBirthSky(input);
  assert.equal(result.httpStatus, 200);
  assert.ok(birthSkyResponseSchema.safeParse(result.body).success);
  assert.equal(result.body.status, "ok");
  if (result.body.status !== "ok") return;
  assert.equal(result.body.phase, "day");
  assert.equal(result.body.timeBasis, "reported");
  assert.equal(result.body.caption, "1994年5月18日 07:40 · 杭州");
  assert.deepEqual(engineCalls, [{ date: "1994-05-18", time: "07:40", timezone_offset: 8, latitude: 30.27, longitude: 120.15 }]);
  const json = JSON.stringify(result.body);
  for (const key of ["latitude", "longitude", "date", "time", "timezone", "birth_place_label", "placeLabel", "name"]) {
    assert.doesNotMatch(json, new RegExp(`"${key}"`), key);
  }
  for (const value of ["30.27", "120.15", "虚构", "Asia/Shanghai", "西湖区", "浙江", "UTC"]) {
    assert.ok(!json.includes(value), value);
  }
  const outside = JSON.stringify({ ...result.body, caption: null });
  for (const value of ["1994", "07:40", "杭州"]) {
    assert.ok(!outside.includes(value), value);
  }
});

test("an uncertain city stops the caption at the time", async () => {
  const { deps: input } = deps({
    loadSubject: (userId, subjectId) => resolveSubjectBirth({
      userId,
      subjectId,
      loadSelfRow: async () => ({ ...selfRow, birth_place_label: "虚构地点" }),
      loadOtherRow: async () => null,
    }),
  });
  const result = await assembleBirthSky(input);
  assert.equal(result.body.status === "ok" ? result.body.caption : null, "1994年5月18日 07:40");
});

test("an adopted birth time is labelled adopted; engine failure shows nothing", async () => {
  const { deps: adopted } = deps({
    loadSubject: (userId, subjectId) => resolveSubjectBirth({
      userId,
      subjectId,
      loadSelfRow: async () => ({ ...selfRow, birth_time_status: "confirmed", active_birth_time: "07:40:00" }),
      loadOtherRow: async () => null,
    }),
  });
  const ok = await assembleBirthSky(adopted);
  assert.equal(ok.body.status === "ok" ? ok.body.timeBasis : null, "adopted");

  const { deps: failing } = deps({ postEngine: async () => { throw new Error("down"); } });
  const failed = await assembleBirthSky(failing);
  assert.equal(failed.httpStatus, 503);
  assert.deepEqual(failed.body, { status: "unavailable" });

  const { deps: malformed } = deps({ postEngine: async () => ({ phase: "day" }) });
  assert.deepEqual((await assembleBirthSky(malformed)).body, { status: "unavailable" });
});

test("the route reads only ?subject= and loads birth truth on the server; no billing", () => {
  assert.match(routeSource, /export async function GET/);
  assert.match(routeSource, /searchParams\.get\("subject"\)/);
  assert.doesNotMatch(routeSource, /searchParams\.get\("(lat|lon|latitude|longitude|date|time|tz)/);
  assert.doesNotMatch(routeSource, /request\.json\(\)/);
  assert.match(serviceSource, /loadSubjectBirth/);
  assert.match(serviceSource, /createServerSupabaseClient/);
  assert.match(coreSource, /prepareChartViewProfile/);
  for (const source of [routeSource, serviceSource, coreSource]) {
    assert.doesNotMatch(source, /consultation-billing|authorizeUsage|completeUsage|@\/mastra|\.insert\(|\.update\(|\.upsert\(/);
  }
});