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

const root = new URL("../", import.meta.url);
const index = JSON.parse(readFileSync(new URL("src/data/world-countries.json", root), "utf8")) as {
  source: { repository: string; release: string; license: string };
  countries: Array<{ code: string; name: string; regionCount: number }>;
};
const pickerSource = readFileSync(new URL("src/components/birth-place-picker.tsx", root), "utf8");

test("global location snapshot is country-split and sourced from the pinned release", () => {
  assert.equal(index.source.repository, "dr5hn/countries-states-cities-database");
  assert.equal(index.source.release, "v3.2-export.7");
  assert.equal(index.source.license, "ODbL-1.0");
  assert.equal(index.countries.length, 229);
  assert.ok(index.countries.some((country) => country.code === "US"));
  assert.ok(index.countries.every((country) => country.regionCount > 0));

  const files = new Set(readdirSync(new URL("public/data/world-locations", root)));
  assert.equal(files.size, index.countries.length);
  for (const country of index.countries) assert.ok(files.has(`${country.code.toLowerCase()}.json`));
});

test("country data keeps the coordinates and IANA timezone needed for confirmation", () => {
  const us = JSON.parse(readFileSync(new URL("public/data/world-locations/us.json", root), "utf8")) as {
    code: string;
    regions: Array<{ code: string; cities: Array<{ name: string; latitude: number; longitude: number; timezone: string }> }>;
  };
  const california = us.regions.find((region) => region.code === "US-CA");
  const sanFrancisco = california?.cities.find((city) => city.name === "San Francisco");
  assert.equal(us.code, "US");
  assert.ok(california);
  assert.ok(sanFrancisco);
  assert.equal(typeof sanFrancisco?.latitude, "number");
  assert.equal(typeof sanFrancisco?.longitude, "number");
  assert.equal(sanFrancisco?.timezone, "America/Los_Angeles");
  assert.equal(existsSync(new URL("src/data/WORLD_LOCATION_DATA.md", root)), true);
});

test("overseas UI uses cascading data files and has no search input", () => {
  assert.match(pickerSource, /world-locations\/\$\{draft\.countryCode\.toLowerCase\(\)\}\.json/);
  assert.match(pickerSource, /海外地点按国家、地区、城市逐级选择，不使用搜索/);
  assert.match(pickerSource, /aria-label="出生国家或地区"/);
  assert.match(pickerSource, /aria-label="出生州省或地区"/);
  assert.match(pickerSource, /aria-label="出生海外城市"/);
  assert.doesNotMatch(pickerSource, /role="combobox"/);
});