import assert from 'node:assert/strict';
import { execFileSync } from 'node:child_process';
import {
  mkdirSync,
  mkdtempSync,
  readFileSync,
  rmSync,
  writeFileSync,
} from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import { test } from 'node:test';
import { fileURLToPath } from 'node:url';

import {
  agcReleasePathPatterns,
  collectRecentReleaseCommits,
  collectReleaseCommits,
  compareVersions,
  createChannelConfig,
  createLegacyUpdateManifest,
  createUpdateManifest,
  formatRecentReleaseNotes,
  formatReleaseNotes,
  nextPatchVersion,
  resolveManifestPlatformKeys,
  resolvePreviousReleaseCommit,
  resolveReleaseChannel,
  resolveRemoteHighWaterVersion,
  selectReleaseArtifact,
  updateManifestUrl,
} from './build-release.mjs';

const windowsTarget = 'x86_64-pc-windows-msvc';
const universalTarget = 'universal-apple-darwin';

function withEnv(overrides, run) {
  const previous = new Map();
  for (const [key, value] of Object.entries(overrides)) {
    previous.set(key, process.env[key]);
    if (value === undefined) delete process.env[key];
    else process.env[key] = value;
  }
  try {
    return run();
  } finally {
    for (const [key, value] of previous) {
      if (value === undefined) delete process.env[key];
      else process.env[key] = value;
    }
  }
}

function withSignedArtifact(fileName, run) {
  const directory = mkdtempSync(path.join(os.tmpdir(), 'agc-release-test-'));
  try {
    const artifact = path.join(directory, fileName);
    writeFileSync(artifact, 'installation package');
    writeFileSync(`${artifact}.sig`, 'signature-content\n');
    return run(artifact);
  } finally {
    rmSync(directory, { recursive: true, force: true });
  }
}

function jsonResponse(body, status = 200) {
  return {
    status,
    ok: status >= 200 && status < 300,
    json: async () => body,
  };
}

function withStubbedFetch(handler, run) {
  const originalFetch = globalThis.fetch;
  globalThis.fetch = async (url) => handler(String(url));
  return Promise.resolve(run()).finally(() => {
    globalThis.fetch = originalFetch;
  });
}

test('selects an explicit release artifact when configured', () => {
  const artifactPath = fileURLToPath(
    new URL('../package.json', import.meta.url),
  );
  withEnv({ AGC_UPDATE_ARTIFACT: artifactPath }, () => {
    assert.equal(selectReleaseArtifact([]), artifactPath);
  });
});

test('does not select unsupported files', () => {
  assert.equal(
    selectReleaseArtifact(['/tmp/latest.json', '/tmp/readme.txt']),
    null,
  );
});

test('resolves the channel from the target platform and rejects mismatches', () => {
  assert.equal(resolveReleaseChannel({}, windowsTarget), 'dev-win');
  assert.equal(resolveReleaseChannel({}, universalTarget), 'dev-mac');
  assert.equal(
    resolveReleaseChannel({ AGC_UPDATE_CHANNEL: 'dev-mac' }, universalTarget),
    'dev-mac',
  );
  assert.throws(
    () =>
      resolveReleaseChannel({ AGC_UPDATE_CHANNEL: 'dev-mac' }, windowsTarget),
    /只能用于 darwin 目标/u,
  );
  assert.throws(
    () =>
      resolveReleaseChannel({ AGC_UPDATE_CHANNEL: 'beta-win' }, windowsTarget),
    /未知发布渠道/u,
  );
});

test('channel manifest URL and build-time endpoint follow the channel', () => {
  withEnv({ AGC_UPDATE_OSS_BASE_URL: undefined }, () => {
    assert.equal(
      updateManifestUrl('dev-win'),
      'https://agc-dev.oss-rg-china-mainland.aliyuncs.com/agc/dev-win/latest.json',
    );
    assert.deepEqual(createChannelConfig('dev-mac'), {
      plugins: {
        updater: {
          endpoints: [
            'https://agc-dev.oss-rg-china-mainland.aliyuncs.com/agc/dev-mac/latest.json',
          ],
        },
      },
    });
  });
});

test('universal macOS builds publish one artifact under both platform keys', () => {
  assert.deepEqual(resolveManifestPlatformKeys(universalTarget), [
    'darwin-aarch64',
    'darwin-x86_64',
  ]);
  assert.deepEqual(resolveManifestPlatformKeys(windowsTarget), [
    'windows-x86_64',
  ]);
});

test('channel manifest carries version, platform keys and signature', () => {
  withSignedArtifact('陶泥儿_0.1.48_x64-setup.exe', (artifact) => {
    withEnv({ AGC_UPDATE_RELEASE_NOTES: '修复与改进' }, () => {
      const manifest = createUpdateManifest(artifact, {
        channel: 'dev-win',
        target: windowsTarget,
        publishedAt: '2026-09-17T00:00:00.000Z',
      });
      assert.match(manifest.version, /^\d+\.\d+\.\d+$/u);
      assert.equal(manifest.notes, '修复与改进');
      assert.equal(manifest.pub_date, '2026-09-17T00:00:00.000Z');
      assert.deepEqual(Object.keys(manifest.platforms), ['windows-x86_64']);
      assert.equal(
        manifest.platforms['windows-x86_64'].signature,
        'signature-content',
      );
      assert.match(
        manifest.platforms['windows-x86_64'].url,
        new RegExp(`/agc/dev-win/${manifest.version}/`, 'u'),
      );
    });
  });
});

test('missing signature fails the channel manifest closed', () => {
  const directory = mkdtempSync(path.join(os.tmpdir(), 'agc-release-test-'));
  try {
    const artifact = path.join(directory, '陶泥儿_0.1.48_x64-setup.exe');
    writeFileSync(artifact, 'installation package');
    assert.throws(
      () =>
        createUpdateManifest(artifact, {
          channel: 'dev-win',
          target: windowsTarget,
        }),
      /缺少更新包签名/u,
    );
  } finally {
    rmSync(directory, { recursive: true, force: true });
  }
});

test('legacy manifest keeps the sha256 contract of published clients', () => {
  withSignedArtifact('陶泥儿_0.1.48_x64-setup.exe', (artifact) => {
    const legacy = createLegacyUpdateManifest(artifact, {
      channel: 'dev-win',
    });
    assert.match(legacy.version, /^\d+\.\d+\.\d+$/u);
    assert.equal(legacy.sha256.length, 64);
    assert.equal(legacy.size, 'installation package'.length);
    assert.match(legacy.downloadUrl, /\/agc\/dev-win\/[\d.]+\//u);
  });
});

test('next release version follows the higher local or channel version', () => {
  assert.equal(compareVersions('0.1.15', '0.1.12'), 1);
  assert.equal(nextPatchVersion('0.1.12', '0.1.15'), '0.1.16');
  assert.equal(nextPatchVersion('0.1.18', '0.1.15'), '0.1.19');
  assert.equal(nextPatchVersion('0.1.12', null), '0.1.13');
});

test('version high water keeps the legacy pointer during the migration window', async () => {
  await withStubbedFetch(
    (url) =>
      url.endsWith('/agc/dev-win/latest.json')
        ? jsonResponse({}, 404)
        : jsonResponse({ version: '0.1.57' }),
    async () => {
      assert.equal(await resolveRemoteHighWaterVersion('dev-win'), '0.1.57');
      // 旧指针 0.1.57 已是高水位，下一次发布必须是 0.1.58，不能退回渠道本地版本。
      assert.equal(nextPatchVersion('0.1.47', '0.1.57'), '0.1.58');
    },
  );
});

test('version high water takes the higher of channel and legacy pointer', async () => {
  await withStubbedFetch(
    (url) =>
      url.endsWith('/agc/dev-win/latest.json')
        ? jsonResponse({ version: '0.1.60' })
        : jsonResponse({ version: '0.1.57' }),
    async () => {
      assert.equal(await resolveRemoteHighWaterVersion('dev-win'), '0.1.60');
    },
  );
});

test('version high water ignores the windows migration pointer for other channels', async () => {
  await withStubbedFetch(
    (url) => {
      assert.ok(
        !url.endsWith('/agc/latest.json'),
        'non-windows channel must not read the windows migration pointer',
      );
      return jsonResponse({ version: '0.1.12' });
    },
    async () => {
      assert.equal(await resolveRemoteHighWaterVersion('dev-mac'), '0.1.12');
    },
  );
});

test('release notes anchor prefers the explicit commit and falls back to the manifest', async () => {
  await withStubbedFetch(
    () => jsonResponse({ version: '0.1.61', commit: 'abcdef1234567890' }),
    async () => {
      assert.equal(
        await resolvePreviousReleaseCommit('dev-win', {
          override: '6017d46088c04199e99cf89f347b12d67591475e',
        }),
        '6017d46088c04199e99cf89f347b12d67591475e',
      );
      // 覆盖值非法时忽略，继续用清单里的 commit。
      assert.equal(
        await resolvePreviousReleaseCommit('dev-win', {
          override: 'not-a-sha',
        }),
        'abcdef1234567890',
      );
      assert.equal(
        await resolvePreviousReleaseCommit('dev-win', { override: '  ' }),
        'abcdef1234567890',
      );
    },
  );

  await withStubbedFetch(
    () => jsonResponse({ version: '0.1.61' }),
    async () => {
      assert.equal(
        await resolvePreviousReleaseCommit('dev-win', { override: undefined }),
        null,
      );
    },
  );
});

test('release notes anchor degrades to null when the manifest cannot be read', async () => {
  const originalFetch = globalThis.fetch;
  globalThis.fetch = async () => {
    throw new Error('fetch failed');
  };
  try {
    assert.equal(
      await resolvePreviousReleaseCommit('dev-win', { override: undefined }),
      null,
    );
  } finally {
    globalThis.fetch = originalFetch;
  }
});

test('recent commit fallback marks that entries may repeat the previous release', () => {
  const directory = mkdtempSync(path.join(os.tmpdir(), 'agc-recent-git-'));
  const git = (...args) =>
    execFileSync('git', args, { cwd: directory, encoding: 'utf8' });
  try {
    git('init', '--quiet');
    git('config', 'user.email', 'release@example.test');
    git('config', 'user.name', 'release test');
    mkdirSync(path.join(directory, 'apps/ai-game-creator-shell'), {
      recursive: true,
    });
    for (const name of ['one', 'two']) {
      writeFileSync(
        path.join(directory, `apps/ai-game-creator-shell/${name}.rs`),
        `fn ${name}() {}\n`,
      );
      git('add', '.');
      git('commit', '--quiet', '-m', `客户端：${name}`);
    }
    writeFileSync(path.join(directory, 'README.md'), '# 文档\n');
    git('add', '.');
    git('commit', '--quiet', '-m', '文档：说明');

    const recent = collectRecentReleaseCommits({ cwd: directory, limit: 5 });
    assert.deepEqual(
      recent.map((entry) => entry.subject),
      ['客户端：two', '客户端：one'],
    );
    const notes = formatRecentReleaseNotes(recent);
    assert.match(
      notes,
      /^最近客户端改动（未定位到上一次发布提交，可能与上一版重复）：\n- 客户端：two/u,
    );
    assert.equal(formatRecentReleaseNotes([]), '');
    assert.equal(formatRecentReleaseNotes(null), '');
  } finally {
    rmSync(directory, { recursive: true, force: true });
  }
});

test('release upload forces overwrite for artifact, signature and channel pointers', () => {
  const source = readFileSync(
    new URL('./release-upload.mjs', import.meta.url),
    'utf8',
  );
  assert.equal(
    (source.match(/runOssutil\(\[\s*'cp',\s*'--force'/gu) ?? []).length,
    4,
  );
  assert.match(source, /agc\/\$\{channel\}\/latest\.json/u);
  assert.match(source, /agc\/latest\.json/u);
});

test('release notes list client commits with short sha and bound their size', () => {
  const notes = formatReleaseNotes([
    { sha: 'a5fd25f1', subject: '客户端更新切换到官方更新插件' },
    { sha: '55af6014', subject: '修'.repeat(120) },
  ]);
  const lines = notes.split('\n');
  assert.equal(lines.length, 2);
  assert.match(lines[0], /^- 客户端更新切换到官方更新插件（a5fd25f1）$/u);
  const truncatedSubject = lines[1]
    .replace(/^- /u, '')
    .replace(/（55af6014）$/u, '');
  assert.equal(truncatedSubject.length, 80, `主题应截断到 80 字：${lines[1]}`);
  assert.match(truncatedSubject, /…$/u);
  assert.match(lines[1], /（55af6014）$/u);

  const many = formatReleaseNotes(
    Array.from({ length: 20 }, (_, index) => ({
      sha: `sha${index}`,
      subject: `改动 ${index}`,
    })),
  );
  assert.match(many, /- 其余 8 项客户端改动省略$/u);
  assert.equal(formatReleaseNotes([]), '');
  assert.equal(formatReleaseNotes(null), '');
});

test('release commits cover only client paths and skip merge commits', () => {
  const directory = mkdtempSync(path.join(os.tmpdir(), 'agc-changelog-git-'));
  const git = (...args) =>
    execFileSync('git', args, { cwd: directory, encoding: 'utf8' });
  try {
    git('init', '--quiet');
    git('config', 'user.email', 'release@example.test');
    git('config', 'user.name', 'release test');
    git('commit', '--allow-empty', '--quiet', '-m', '基点');
    const base = git('rev-parse', 'HEAD').trim();

    mkdirSync(path.join(directory, 'apps/ai-game-creator-shell'), {
      recursive: true,
    });
    mkdirSync(path.join(directory, 'docs'), { recursive: true });
    writeFileSync(
      path.join(directory, 'apps/ai-game-creator-shell/main.rs'),
      'fn main() {}\n',
    );
    git('add', '.');
    git('commit', '--quiet', '-m', '客户端：新增更新插件接入');

    writeFileSync(path.join(directory, 'docs/readme.md'), '# 文档\n');
    git('add', '.');
    git('commit', '--quiet', '-m', '文档：补充说明');

    writeFileSync(
      path.join(directory, 'apps/ai-game-creator-shell/other.rs'),
      'fn other() {}\n',
    );
    git('add', '.');
    git('commit', '--quiet', '-m', '客户端：修复版本回退');

    git('checkout', '--quiet', '-b', 'side');
    writeFileSync(
      path.join(directory, 'apps/ai-game-creator-shell/side.rs'),
      'fn side() {}\n',
    );
    git('add', '.');
    git('commit', '--quiet', '-m', '客户端：侧分支改动');
    git('checkout', '--quiet', 'master');
    git('merge', '--quiet', '--no-ff', '--no-edit', 'side');

    const commits = collectReleaseCommits(base, 'HEAD', { cwd: directory });
    assert.ok(commits, '应能在临时仓库里收集提交');
    const subjects = commits.map((entry) => entry.subject);
    // 合并提交本身被 --no-merges 排除，但它带入的客户端改动仍然计入。
    assert.deepEqual(subjects, [
      '客户端：侧分支改动',
      '客户端：修复版本回退',
      '客户端：新增更新插件接入',
    ]);
    assert.ok(commits.every((entry) => /^[0-9a-f]{7,}$/u.test(entry.sha)));

    assert.equal(
      collectReleaseCommits('1234567890abcdef', 'HEAD', { cwd: directory }),
      null,
    );
    assert.equal(collectReleaseCommits(null, 'HEAD', { cwd: directory }), null);
  } finally {
    rmSync(directory, { recursive: true, force: true });
  }
});

test('scheduler path filter stays in sync with client release paths', () => {
  const jenkinsfile = readFileSync(
    new URL(
      '../../../jenkins/Jenkinsfile.scheduled-revision-trigger',
      import.meta.url,
    ),
    'utf8',
  );
  const filterLine = jenkinsfile
    .split('\n')
    .find((line) => line.includes('apps/ai-game-creator-shell/*|'));
  assert.ok(filterLine, '调度管线里应存在发布范围过滤模式');
  for (const pattern of agcReleasePathPatterns) {
    const bashPattern = pattern.includes('/') ? `${pattern}*` : pattern;
    assert.ok(
      filterLine.includes(bashPattern),
      `调度管线过滤缺少 ${bashPattern}`,
    );
  }
});

test('scheduler skips the full build only for non-deploy paths', () => {
  const jenkinsfile = readFileSync(
    new URL(
      '../../../jenkins/Jenkinsfile.scheduled-revision-trigger',
      import.meta.url,
    ),
    'utf8',
  );
  const skipLine = jenkinsfile
    .split('\n')
    .find((line) => line.includes('docs/*|.codex/*|jenkins/*'));
  assert.ok(skipLine, '调度管线里应存在 Full Build 跳过模式');
  for (const pattern of [
    'docs/*',
    '.codex/*',
    'jenkins/*',
    'apps/ai-game-creator-shell/*',
    'apps/mobile-shell/*',
    'apps/desktop-shell/*',
    'apps/preview-deployer-web/*',
    'tools/*',
    '*.md',
  ]) {
    assert.ok(skipLine.includes(pattern), `Full Build 跳过模式缺少 ${pattern}`);
  }
});