import test from 'node:test';
import assert from 'node:assert/strict';
import {
  buildWindowsMpvLaunchArgs,
  launchWindowsMpv,
  resolveWindowsMpvPath,
  type WindowsMpvLaunchDeps,
} from './windows-mpv-launch';

function createDeps(overrides: Partial<WindowsMpvLaunchDeps> = {}): WindowsMpvLaunchDeps {
  return {
    getEnv: () => undefined,
    runWhere: () => ({ status: 1, stdout: '' }),
    fileExists: () => false,
    spawnDetached: async () => undefined,
    showError: () => undefined,
    ...overrides,
  };
}

test('resolveWindowsMpvPath prefers SUBMINER_MPV_PATH', () => {
  const resolved = resolveWindowsMpvPath(
    createDeps({
      getEnv: (name) => (name === 'SUBMINER_MPV_PATH' ? 'C:\\mpv\\mpv.exe' : undefined),
      fileExists: (candidate) => candidate === 'C:\\mpv\\mpv.exe',
    }),
  );

  assert.equal(resolved, 'C:\\mpv\\mpv.exe');
});

test('resolveWindowsMpvPath prefers configured executable path before PATH', () => {
  const resolved = resolveWindowsMpvPath(
    createDeps({
      getEnv: () => undefined,
      runWhere: () => ({ status: 0, stdout: 'C:\\tools\\mpv.exe\r\n' }),
      fileExists: (candidate) => candidate === 'C:\\mpv\\mpv.exe',
    }),
    '  C:\\mpv\\mpv.exe  ',
  );

  assert.equal(resolved, 'C:\\mpv\\mpv.exe');
});

test('resolveWindowsMpvPath falls back to where.exe output', () => {
  const resolved = resolveWindowsMpvPath(
    createDeps({
      runWhere: () => ({ status: 0, stdout: 'C:\\tools\\mpv.exe\r\nC:\\other\\mpv.exe\r\n' }),
      fileExists: (candidate) => candidate === 'C:\\tools\\mpv.exe',
    }),
  );

  assert.equal(resolved, 'C:\\tools\\mpv.exe');
});

test('buildWindowsMpvLaunchArgs uses explicit SubMiner defaults and targets', () => {
  assert.deepEqual(
    buildWindowsMpvLaunchArgs(
      ['C:\\a.mkv', 'C:\\b.mkv'],
      [],
      'C:\\SubMiner\\SubMiner.exe',
      'C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
    ),
    [
      '--player-operation-mode=pseudo-gui',
      '--force-window=immediate',
      '--script=C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
      '--input-ipc-server=\\\\.\\pipe\\subminer-socket',
      '--alang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--slang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--sub-auto=fuzzy',
      '--sub-file-paths=subs;subtitles',
      '--sid=auto',
      '--secondary-sid=auto',
      '--secondary-sub-visibility=no',
      '--script-opts=subminer-binary_path=C:\\SubMiner\\SubMiner.exe,subminer-socket_path=\\\\.\\pipe\\subminer-socket',
      'C:\\a.mkv',
      'C:\\b.mkv',
    ],
  );
});

test('buildWindowsMpvLaunchArgs inserts maximized launch mode before explicit extra args when configured', () => {
  assert.deepEqual(
    buildWindowsMpvLaunchArgs(
      ['C:\\video.mkv'],
      ['--window-maximized=no'],
      'C:\\SubMiner\\SubMiner.exe',
      'C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
      'maximized',
    ),
    [
      '--player-operation-mode=pseudo-gui',
      '--force-window=immediate',
      '--script=C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
      '--input-ipc-server=\\\\.\\pipe\\subminer-socket',
      '--alang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--slang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--sub-auto=fuzzy',
      '--sub-file-paths=subs;subtitles',
      '--sid=auto',
      '--secondary-sid=auto',
      '--secondary-sub-visibility=no',
      '--script-opts=subminer-binary_path=C:\\SubMiner\\SubMiner.exe,subminer-socket_path=\\\\.\\pipe\\subminer-socket',
      '--window-maximized=yes',
      '--window-maximized=no',
      'C:\\video.mkv',
    ],
  );
});

test('buildWindowsMpvLaunchArgs keeps shortcut-only launches in idle mode', () => {
  assert.deepEqual(
    buildWindowsMpvLaunchArgs(
      [],
      [],
      'C:\\SubMiner\\SubMiner.exe',
      'C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
    ),
    [
      '--player-operation-mode=pseudo-gui',
      '--force-window=immediate',
      '--idle=yes',
      '--script=C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
      '--input-ipc-server=\\\\.\\pipe\\subminer-socket',
      '--alang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--slang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--sub-auto=fuzzy',
      '--sub-file-paths=subs;subtitles',
      '--sid=auto',
      '--secondary-sid=auto',
      '--secondary-sub-visibility=no',
      '--script-opts=subminer-binary_path=C:\\SubMiner\\SubMiner.exe,subminer-socket_path=\\\\.\\pipe\\subminer-socket',
    ],
  );
});

test('buildWindowsMpvLaunchArgs mirrors a custom input-ipc-server into script opts', () => {
  assert.deepEqual(
    buildWindowsMpvLaunchArgs(
      ['C:\\video.mkv'],
      ['--input-ipc-server', '\\\\.\\pipe\\custom-subminer-socket'],
      'C:\\SubMiner\\SubMiner.exe',
      'C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
    ),
    [
      '--player-operation-mode=pseudo-gui',
      '--force-window=immediate',
      '--script=C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
      '--input-ipc-server=\\\\.\\pipe\\custom-subminer-socket',
      '--alang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--slang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--sub-auto=fuzzy',
      '--sub-file-paths=subs;subtitles',
      '--sid=auto',
      '--secondary-sid=auto',
      '--secondary-sub-visibility=no',
      '--script-opts=subminer-binary_path=C:\\SubMiner\\SubMiner.exe,subminer-socket_path=\\\\.\\pipe\\custom-subminer-socket',
      '--input-ipc-server',
      '\\\\.\\pipe\\custom-subminer-socket',
      'C:\\video.mkv',
    ],
  );
});

test('buildWindowsMpvLaunchArgs includes socket script opts when plugin entrypoint is present without binary path', () => {
  assert.deepEqual(
    buildWindowsMpvLaunchArgs(
      ['C:\\video.mkv'],
      ['--input-ipc-server', '\\\\.\\pipe\\custom-subminer-socket'],
      undefined,
      'C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
    ),
    [
      '--player-operation-mode=pseudo-gui',
      '--force-window=immediate',
      '--script=C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
      '--input-ipc-server=\\\\.\\pipe\\custom-subminer-socket',
      '--alang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--slang=ja,jp,jpn,japanese,en,eng,english,enus,en-us',
      '--sub-auto=fuzzy',
      '--sub-file-paths=subs;subtitles',
      '--sid=auto',
      '--secondary-sid=auto',
      '--secondary-sub-visibility=no',
      '--script-opts=subminer-socket_path=\\\\.\\pipe\\custom-subminer-socket',
      '--input-ipc-server',
      '\\\\.\\pipe\\custom-subminer-socket',
      'C:\\video.mkv',
    ],
  );
});

test('launchWindowsMpv reports missing mpv path', async () => {
  const errors: string[] = [];
  const result = await launchWindowsMpv(
    [],
    createDeps({
      showError: (_title, content) => errors.push(content),
    }),
  );

  assert.equal(result.ok, false);
  assert.equal(result.mpvPath, '');
  assert.match(errors[0] ?? '', /mpv\.executablePath/i);
});

test('launchWindowsMpv spawns detached mpv with targets', async () => {
  const calls: string[] = [];
  const result = await launchWindowsMpv(
    ['C:\\video.mkv'],
    createDeps({
      getEnv: (name) => (name === 'SUBMINER_MPV_PATH' ? 'C:\\mpv\\mpv.exe' : undefined),
      fileExists: (candidate) => candidate === 'C:\\mpv\\mpv.exe',
      spawnDetached: async (command, args) => {
        calls.push(command);
        calls.push(args.join('|'));
      },
    }),
    [],
    'C:\\SubMiner\\SubMiner.exe',
    'C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
  );

  assert.equal(result.ok, true);
  assert.equal(result.mpvPath, 'C:\\mpv\\mpv.exe');
  assert.deepEqual(calls, [
    'C:\\mpv\\mpv.exe',
    '--player-operation-mode=pseudo-gui|--force-window=immediate|--script=C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua|--input-ipc-server=\\\\.\\pipe\\subminer-socket|--alang=ja,jp,jpn,japanese,en,eng,english,enus,en-us|--slang=ja,jp,jpn,japanese,en,eng,english,enus,en-us|--sub-auto=fuzzy|--sub-file-paths=subs;subtitles|--sid=auto|--secondary-sid=auto|--secondary-sub-visibility=no|--script-opts=subminer-binary_path=C:\\SubMiner\\SubMiner.exe,subminer-socket_path=\\\\.\\pipe\\subminer-socket|C:\\video.mkv',
  ]);
});

test('launchWindowsMpv skips bundled script when installed plugin is detected', async () => {
  const calls: string[] = [];
  const notifications: string[] = [];
  const result = await launchWindowsMpv(
    ['C:\\video.mkv'],
    createDeps({
      getEnv: (name) => (name === 'SUBMINER_MPV_PATH' ? 'C:\\mpv\\mpv.exe' : undefined),
      fileExists: (candidate) => candidate === 'C:\\mpv\\mpv.exe',
      spawnDetached: async (command, args) => {
        calls.push(command);
        calls.push(args.join('|'));
      },
    }),
    [],
    'C:\\SubMiner\\SubMiner.exe',
    'C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
    '',
    'normal',
    {
      detectInstalledMpvPlugin: () => ({
        installed: true,
        path: 'C:\\Users\\tester\\AppData\\Roaming\\mpv\\scripts\\subminer\\main.lua',
        version: null,
        source: 'default-config',
        message: null,
      }),
      notifyInstalledPluginDetected: (detection) => {
        notifications.push(detection.path ?? '');
      },
    },
  );

  assert.equal(result.ok, true);
  assert.equal(calls[0], 'C:\\mpv\\mpv.exe');
  assert.doesNotMatch(calls[1] ?? '', /--script=C:\\Program Files\\SubMiner/);
  assert.match(calls[1] ?? '', /--script-opts=subminer-binary_path=C:\\SubMiner\\SubMiner\.exe/);
  assert.deepEqual(notifications, [
    'C:\\Users\\tester\\AppData\\Roaming\\mpv\\scripts\\subminer\\main.lua',
  ]);
});

test('launchWindowsMpv prompts before launch and injects bundled script after legacy plugin removal', async () => {
  const calls: string[] = [];
  const prompts: string[] = [];
  let detectCalls = 0;
  const result = await launchWindowsMpv(
    ['C:\\video.mkv'],
    createDeps({
      getEnv: (name) => (name === 'SUBMINER_MPV_PATH' ? 'C:\\mpv\\mpv.exe' : undefined),
      fileExists: (candidate) => candidate === 'C:\\mpv\\mpv.exe',
      spawnDetached: async (command, args) => {
        calls.push(command);
        calls.push(args.join('|'));
      },
    }),
    [],
    'C:\\SubMiner\\SubMiner.exe',
    'C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main.lua',
    '',
    'normal',
    {
      detectInstalledMpvPlugin: () => {
        detectCalls += 1;
        return detectCalls === 1
          ? {
              installed: true,
              path: 'C:\\Users\\tester\\AppData\\Roaming\\mpv\\scripts\\subminer\\main.lua',
              version: '0.12.0',
              source: 'default-config',
              message: null,
            }
          : {
              installed: false,
              path: null,
              version: null,
              source: null,
              message: null,
            };
      },
      resolveInstalledPluginBeforeLaunch: async (detection) => {
        prompts.push(detection.path ?? '');
        return 'removed' as const;
      },
    },
  );

  assert.equal(result.ok, true);
  assert.equal(detectCalls, 2);
  assert.deepEqual(prompts, [
    'C:\\Users\\tester\\AppData\\Roaming\\mpv\\scripts\\subminer\\main.lua',
  ]);
  assert.equal(calls[0], 'C:\\mpv\\mpv.exe');
  assert.match(
    calls[1] ?? '',
    /--script=C:\\Program Files\\SubMiner\\resources\\plugin\\subminer\\main\.lua/,
  );
});

test('launchWindowsMpv reports spawn failures with path context', async () => {
  const errors: string[] = [];
  const result = await launchWindowsMpv(
    [],
    createDeps({
      getEnv: (name) => (name === 'SUBMINER_MPV_PATH' ? 'C:\\mpv\\mpv.exe' : undefined),
      fileExists: (candidate) => candidate === 'C:\\mpv\\mpv.exe',
      spawnDetached: async () => {
        throw new Error('spawn failed');
      },
      showError: (_title, content) => errors.push(content),
    }),
  );

  assert.equal(result.ok, false);
  assert.equal(result.mpvPath, 'C:\\mpv\\mpv.exe');
  assert.match(errors[0] ?? '', /Failed to launch mpv/i);
  assert.match(errors[0] ?? '', /C:\\mpv\\mpv\.exe/i);
});

test('launchWindowsMpv reports async spawn failures with path context', async () => {
  const errors: string[] = [];
  const result = await launchWindowsMpv(
    [],
    createDeps({
      getEnv: (name) => (name === 'SUBMINER_MPV_PATH' ? 'C:\\mpv\\mpv.exe' : undefined),
      fileExists: (candidate) => candidate === 'C:\\mpv\\mpv.exe',
      spawnDetached: () => Promise.reject(new Error('async spawn failed')),
      showError: (_title, content) => errors.push(content),
    }),
  );

  assert.equal(result.ok, false);
  assert.equal(result.mpvPath, 'C:\\mpv\\mpv.exe');
  assert.match(errors[0] ?? '', /Failed to launch mpv/i);
  assert.match(errors[0] ?? '', /async spawn failed/i);
});