// The teaser video (media/teaser, v6): every CLI line it shows is real output of the command it names, every desktop
// frame is a real capture of the app (desktop.ts), each scene holds 4-5 s, each caption is fully on screen for at least
// 3 s, the whole cut is 50-60 s, and it is 16:9 only.
import { afterAll, beforeAll, describe, expect, test } from 'bun:test';
import { generateKeyPairSync } from 'node:crypto';
import { existsSync, mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { ALPHA3 } from '../cli/lib/money';
import { SIZES } from '../cli/shots/lib';

const ROOT = join(import.meta.dir, '..');
const CLI = join(ROOT, 'cli', 'index.ts');
const FX = join(import.meta.dir, 'fixtures', 'scan');
const MOCK = join(import.meta.dir, 'helpers', 'teaser-store-mock.ts');

interface Scene { id: string; start: number; end: number }
interface Teaser {
  FORMAT: { w: number; h: number }; DURATION: number; SCENES: Scene[]; DISSOLVE: number;
  CAPTIONS: { id: string; lines: string[] }[];
  captionTimes(): { id: string; text: string; at: number; from: number; to: number; hold: number }[];
  TODO: { text: string }[]; MAIL: { at: number; subject: string; guideline: string }; MAIL_IN: number;
  INIT_CMD: string; INIT_LINES: string[];
  PLAN_CMD: string; PLAN_LINES: string[]; PLAN_STEPS: number; PLAN_PILL: string;
  COPY_FILE: string; COPY: { lang: string; title: string[] }[]; SHOT_SIZES: { id: string }[]; SHOT_LANGS: string[]; SHOTS_PILL: string;
  PRODUCT_LINES: { text: string; cmd?: boolean }[]; PRODUCTS_PILL: { text: string };
  DECL_LINES: { what: string; value: string; where: string }[]; DECL_ASK: string; DECL_TOTAL: number;
  SCAN_CMD: string; RISKS_LINE: string; RESCAN_LINE: string;
  FINDINGS: { sev: string; guideline: string; title: string; where: string; why: string }[];
  DESK: Record<string, { groups: { frame: string; sweep?: { seq: string; at: number; d: number } }[]; swap?: number[]; callouts: { at: number; until: number; target: string; text: string }[] }>;
  DESK_SCENES: string[]; DESK_FRAMES: string[]; DESK_SWEEPS: string[];
}
const T = (await import(join(ROOT, 'media/teaser/script.js'))) as Teaser;

/** Output lines without the clock prefix and the "(0s)" timer, as the video shows them. */
const lines = (out: string): string[] => out.split('\n').map(l => l.replace(/^\d\d:\d\d:\d\d /, '').replace(/ \(\d+s\)$/, '').trimEnd());
const run = (argv: string[], cwd: string, env: Record<string, string> = {}): { code: number; out: string } => {
  const r = Bun.spawnSync(['bun', CLI, ...argv], { cwd, env: { ...process.env, NO_COLOR: '1', ASC_KEY_ID: '', ASC_ISSUER_ID: '', ASC_P8: '', PLAY_SERVICE_ACCOUNT: '', ...env }, stdout: 'pipe', stderr: 'pipe' });
  return { code: r.exitCode, out: r.stdout.toString() + r.stderr.toString() };
};

// One throwaway project for the init, plan and products scenes: `storebound init` in an empty folder, store answers
// from the teaser store double (tests/helpers/teaser-store-mock.ts, preloaded through bunfig.toml), placeholder keys.
let dir = '', initOut = '', keys: Record<string, string> = {};
beforeAll(() => {
  dir = mkdtempSync(join(tmpdir(), 'sb-teaser-'));
  initOut = run(['init'], dir).out;
  writeFileSync(join(dir, 'bunfig.toml'), `preload = [${JSON.stringify(MOCK)}]\n`);
  const ec = generateKeyPairSync('ec', { namedCurve: 'P-256' }).privateKey.export({ type: 'pkcs8', format: 'pem' }).toString();
  const rsa = generateKeyPairSync('rsa', { modulusLength: 2048 }).privateKey.export({ type: 'pkcs8', format: 'pem' }).toString();
  writeFileSync(join(dir, 'k.p8'), ec);
  writeFileSync(join(dir, 'sa.json'), JSON.stringify({ client_email: 'sb@example.com', private_key: rsa, token_uri: 'https://oauth2.googleapis.com/token' }));
  keys = { ASC_KEY_ID: 'ABCDE12345', ASC_ISSUER_ID: '00000000-0000-0000-0000-000000000000', ASC_P8: join(dir, 'k.p8'), PLAY_SERVICE_ACCOUNT: join(dir, 'sa.json') };
});
afterAll(() => rmSync(dir, { recursive: true, force: true }));

describe('teaser: every CLI line is real output', () => {
  test('init: `storebound init` in an empty folder', () => {
    expect(T.INIT_CMD).toBe('bunx storebound init');
    const out = lines(initOut);
    for (const l of T.INIT_LINES) expect(out, l).toContain(l);
  });

  test('plan: `storebound release plan 1.0.0` against a brand-new app record on both stores', () => {
    expect(T.PLAN_CMD).toBe('storebound release plan 1.0.0');
    const r = run(T.PLAN_CMD.split(' ').slice(1), dir, { ...keys, TEASER_STORE: 'new' });
    const out = lines(r.out);
    for (const l of T.PLAN_LINES) expect(out, l).toContain(l);
    // the lines keep the order of the real plan
    const idx = T.PLAN_LINES.map(l => out.indexOf(l));
    expect([...idx].sort((a, b) => a - b)).toEqual(idx);
    const steps = out.filter(l => /^\s+\d+\. /.test(l)).length;
    expect(steps).toBe(T.PLAN_STEPS);
    expect(T.PLAN_PILL).toStartWith(`*${steps}* steps`);
    expect(r.out).not.toContain('could not be read');
  });

  test('products: `play products --dry` before, `catalog diff` after, with two products in the config', () => {
    const cfg = join(dir, 'storebound.config.ts');
    const src = readFileSync(cfg, 'utf8');
    writeFileSync(cfg, src.replace('  dataSafety: {', `  products: [
    { id: 'com.example.app.no_ads', type: 'non_consumable', usd: 2.99, listings: { en: { title: 'No Ads', description: 'Removes every ad.' }, tr: { title: 'Reklamsız', description: 'Tüm reklamları kaldırır.' } } },
    { id: 'com.example.app.gems_100', type: 'consumable', usd: 0.99, listings: { en: { title: '100 Gems', description: 'A pouch of 100 gems.' }, tr: { title: '100 Mücevher', description: '100 mücevherlik bir kese.' } } },
  ],
  dataSafety: {`));
    try {
      const cmds = T.PRODUCT_LINES.filter(l => l.cmd).map(l => l.text.replace(/^\$ storebound /, ''));
      expect(cmds).toEqual(['play products --dry', 'catalog diff']);
      const before = run(cmds[0]!.split(' '), dir, { ...keys, TEASER_STORE: 'new' });
      const after = run(cmds[1]!.split(' '), dir, { ...keys, TEASER_STORE: 'catalog' });
      expect(before.code).toBe(0);
      expect(after.code).toBe(0);
      const out = [...lines(before.out), ...lines(after.out)];
      for (const l of T.PRODUCT_LINES.filter(x => !x.cmd)) expect(out, l.text).toContain(l.text);
      // the pill's numbers are the region counts above, and the App Store's 175 storefronts
      expect(Object.keys(ALPHA3)).toHaveLength(175);
      expect(T.PRODUCTS_PILL.text).toContain('*175* App Store regions');
      expect(T.PRODUCTS_PILL.text).toContain('*174* Google Play regions');
      expect(out.join('\n')).toContain('0 mismatch(es), 0 warning(s), 0 price difference(s)');
    } finally { writeFileSync(cfg, src); }
  });

  test('forms: the Data safety answer count of `storebound check`', () => {
    expect(run(['check'], dir).out).toContain(`data safety: ${T.DECL_TOTAL} CSV rows`);
  });
});

describe('teaser: the scan text is real', () => {
  const scanText = (fixture: string, demo: boolean): string => {
    const env = { REVIEW_DEMO_USER: demo ? 'demo@example.com' : '', REVIEW_DEMO_PASSWORD: demo ? 'example' : '' };
    const r = run(['scan', '--dir', join(FX, fixture)], ROOT, env);
    expect(r.code).toBe(demo ? 0 : 1);   // exit 1 on blockers (before the fixes)
    return r.out;
  };
  let before = '', after = '';
  beforeAll(() => { before = scanText('teaser', false); after = scanText('teaser-fixed', true); });

  test('rejections: the risks line and three findings (severity, guideline, title, file:line)', () => {
    expect(T.SCAN_CMD).toBe('storebound scan');
    expect(before).toContain(T.RISKS_LINE);
    const blocks = before.split(/\n\s+\d\. /).slice(1);
    for (const f of T.FINDINGS) {
      const b = blocks.find(x => x.startsWith(`${f.sev.padEnd(7)} ${f.guideline} · App Store · ${f.title}`));
      expect(b, f.title).toBeDefined();
      expect(b!).toContain(`at ${f.where}`);
      // the plain reason is an annotation, short enough to read
      expect(f.why.split(' ').length, f.why).toBeLessThanOrEqual(10);
    }
  });
  test('rejections: the re-scan after the fixes (tests/fixtures/scan/teaser-fixed) is clean', () => {
    expect(after).toContain(T.RESCAN_LINE);
  });
  test('forms: the declarations proposal lines and the ask-owner line', () => {
    for (const d of T.DECL_LINES) expect(before).toContain(`detected  ${d.what}: ${d.value}`);
    for (const d of T.DECL_LINES) expect(before).toContain(`(${d.where})`);
    expect(before).toContain(T.DECL_ASK);
  });
});

describe('teaser: the store text and screenshots are the demo game\'s', () => {
  test('copy: the hero title per language from examples/demo-game/store/shots/copy.json', () => {
    const copy = JSON.parse(readFileSync(join(ROOT, 'examples/demo-game', T.COPY_FILE), 'utf8')) as Record<string, { hero: { title: string[] } }>;
    for (const c of T.COPY) expect(c.title).toEqual(copy[c.lang]!.hero.title);
    expect(T.SHOT_LANGS).toEqual(T.COPY.map(c => c.lang));
  });
  test('sizes: seven store sizes the demo game renders (iPhone, iPad, Play phone and tablets, feature graphic)', () => {
    for (const s of T.SHOT_SIZES) expect(SIZES[s.id], s.id).toBeDefined();
    expect(T.SHOT_SIZES).toHaveLength(7);
    expect(T.SHOTS_PILL).toBe(`*7* sizes × *${T.COPY.length}* languages`);
    expect(T.TODO.map(x => x.text)).toContain('7 screenshot sizes × 14 languages');
    expect(T.TODO.map(x => x.text)).toContain('prices in 175 countries');
  });
});

describe('teaser: timing and format', () => {
  test('16:9 only: the master is 1920x1080; the pipeline has no vertical output', () => {
    expect(T.FORMAT).toEqual({ w: 1920, h: 1080 });
    const render = readFileSync(join(ROOT, 'media/teaser/render.ts'), 'utf8');
    expect(render).not.toMatch(/1080\s*x\s*1920|w: 1080, h: 1920|vertical/i);
    expect(render).toContain('scale=1280:720');
  });
  test('scenes are contiguous, 4-5 s each, 50-60 s in total', () => {
    expect(T.SCENES[0]!.start).toBe(0);
    for (let i = 1; i < T.SCENES.length; i++) expect(T.SCENES[i]!.start).toBe(T.SCENES[i - 1]!.end);
    for (const s of T.SCENES) {
      expect(s.end - s.start, s.id).toBeGreaterThanOrEqual(4);
      expect(s.end - s.start, s.id).toBeLessThanOrEqual(5);
    }
    expect(T.DURATION).toBe(T.SCENES.at(-1)!.end);
    expect(T.DURATION).toBeGreaterThanOrEqual(50);
    expect(T.DURATION).toBeLessThanOrEqual(60);
  });
  test('one caption per scene, fully on screen for at least 3 s, inside its scene', () => {
    const c = T.captionTimes();
    expect(c.map(x => x.id)).toEqual(T.SCENES.map(s => s.id));
    for (const x of c) {
      const s = T.SCENES.find(y => y.id === x.id)!;
      expect(x.hold, x.text).toBeGreaterThanOrEqual(3);
      expect(x.at).toBeGreaterThanOrEqual(s.start);
      expect(x.to).toBeLessThanOrEqual(s.end);
    }
  });
  test('the rejection mail holds at least 2 s before the first cut', () => {
    expect(T.SCENES[0]!.end - T.MAIL.at - T.MAIL_IN).toBeGreaterThanOrEqual(2);
    expect(T.MAIL.guideline).toStartWith('Guideline 2.1');
  });
});

// The desktop sequence: four scenes of the real app (fixture mode), captured by media/teaser/desktop.ts. The frames are
// gitignored output; the file checks run wherever they were captured (render.ts captures them before every render).
const DESK_DIR = join(ROOT, 'media/teaser/out/desktop');
const captured = existsSync(join(DESK_DIR, 'boxes.json'));
/** Width and height of a JPEG (its first SOF marker). */
function jpegSize(buf: Buffer): { w: number; h: number } | null {
  if (buf[0] !== 0xff || buf[1] !== 0xd8) return null;
  for (let i = 2; i + 9 < buf.length;) {
    if (buf[i] !== 0xff) { i++; continue; }
    const m = buf[i + 1]!;
    if (m >= 0xc0 && m <= 0xcf && m !== 0xc4 && m !== 0xc8 && m !== 0xcc) return { w: buf.readUInt16BE(i + 7), h: buf.readUInt16BE(i + 5) };
    i += 2 + buf.readUInt16BE(i + 2);
  }
  return null;
}

describe('teaser: the desktop scenes are real captures of the app', () => {
  test('four desktop scenes in a row before the submit card, the last one is v5\'s (timeline, then 0 blockers)', () => {
    expect(T.DESK_SCENES).toEqual(['portfolio', 'charts', 'catalog', 'desktop']);
    const ids = T.SCENES.map(s => s.id);
    expect(ids.slice(-5)).toEqual([...T.DESK_SCENES, 'submit']);
    expect(T.DESK.desktop!.groups.map(g => g.frame)).toEqual(['releases', 'ready']);
    expect(T.CAPTIONS.find(c => c.id === 'desktop')!.lines.join(' ').replace(/\*/g, '')).toBe('Both stores, one view. Ready for review.');
    for (const id of T.DESK_SCENES) expect(T.DESK[id]!.callouts.length, id).toBe(1 + (id === 'desktop' ? 1 : 0));
    expect(T.DESK_SWEEPS).toEqual(['growth', 'health']);
  });
  test('every frame a scene names is one desktop.ts captures from the app (no mock frames)', () => {
    const src = readFileSync(join(ROOT, 'media/teaser/desktop.ts'), 'utf8');
    expect(src).toContain("VITE_FIXTURES: '1'");
    for (const f of T.DESK_FRAMES) expect(src, f).toMatch(new RegExp(`shot\\([a-z.]+, '${f}'\\)|sweep\\('${f}'`));
    for (const s of T.DESK_SWEEPS) expect(src, s).toContain(`sweep('${s}'`);
    // the picture shows only files from out/desktop, never a drawn stand-in
    const js = readFileSync(join(ROOT, 'media/teaser/teaser.js'), 'utf8');
    expect(js).toContain('out/desktop/${x.g.frame}.jpg');
    expect(js).toContain('out/desktop/${f.file}.jpg');
  });
  test.if(captured)('the captured frames are present: 1280x800 @2x JPEGs, the sweeps one frame per hovered day', () => {
    const boxes = JSON.parse(readFileSync(join(DESK_DIR, 'boxes.json'), 'utf8')) as Record<string, unknown> & { source: string; sweeps: Record<string, { file: string; px: number; day: string }[]> };
    expect(boxes.source).toContain('VITE_FIXTURES=1');
    const files = [...T.DESK_FRAMES];
    for (const s of T.DESK_SWEEPS) {
      const f = boxes.sweeps[s]!;
      expect(f.length, s).toBeGreaterThanOrEqual(8);
      expect(new Set(f.map(x => x.day)).size, s).toBe(f.length);
      for (let i = 1; i < f.length; i++) expect(f[i]!.px).toBeGreaterThan(f[i - 1]!.px);
      files.push(...f.map(x => x.file));
    }
    const sizes = new Set<number>();
    for (const f of files) {
      const p = join(DESK_DIR, `${f}.jpg`);
      expect(existsSync(p), p).toBe(true);
      const buf = readFileSync(p);
      expect(jpegSize(buf), f).toEqual({ w: 2560, h: 1600 });
      sizes.add(buf.length);
    }
    // every sweep frame differs from the others (the tooltip moved): no copied frames
    expect(sizes.size).toBeGreaterThan(files.length * 0.9);
    for (const id of T.DESK_SCENES) for (const c of T.DESK[id]!.callouts) expect(boxes[c.target], c.target).toBeDefined();
  });
});