'use strict';
const path = require('path');
const os   = require('os');
const fs   = require('fs');

const ROOT = process.cwd();
let passed = 0, failed = 0;
function ok(cond, msg) {
  if (cond) { console.log(`  [PASS] ${msg}`); passed++; }
  else       { console.error(`  [FAIL] ${msg}`); failed++; }
}
function eq(a, b, msg) { ok(String(a) === String(b), `${msg}  (expected "${b}", got "${a}")`); }

function makeStream(o) {
  return Object.assign({
    index: 0, codec_type: 'video', codec_name: 'h264',
    r_frame_rate: '24/1', avg_frame_rate: '24/1',
    width: 1920, height: 1080, channels: 2,
    bit_rate: '0', tags: {}, disposition: {}, profile: '',
  }, o);
}
function makeArgs(filePath, streams, inputs, variables) {
  const workDir = fs.mkdtempSync(path.join(os.tmpdir(), 'tdarr-logic-'));
  return {
    inputFileObj: { _id: filePath, ffProbeData: { streams }, mediaInfo: { track: [] } },
    variables: Object.assign({}, variables || {}),
    inputs: inputs || {},
    workDir,
    ffmpegPath: 'ffmpeg',
    mkvpropeditPath: 'mkvpropedit',
    jobLog: () => {},
    _workDir: workDir,
  };
}
function cleanup(a) { try { fs.rmSync(a._workDir, { recursive: true, force: true }); } catch(_){} }

const { plugin: analyzerPlugin } = require(path.join(ROOT, 'LocalFlowPlugins/utility/mediaAnalyzerGOP/1.0.0/index'));
const { plugin: audioPlugin }    = require(path.join(ROOT, 'LocalFlowPlugins/audio/audioSelectorClamping/1.0.0/index'));

const ANALYZER_INPUTS = {
  moviePathPatterns: '/Radarr', animeSeries: 'Naruto|One Piece',
  filmBitrate: '3000', seriesBitrate: '3000', animeBitrateHd: '2000', animeBitrateSd: '1000',
};
const AUDIO_INPUTS = {
  filmMultiChannelBitrate: '640', seriesMultiChannelThreshold: '384', stereoBitrateMax: '128',
};

(async () => {
  // ── mediaAnalyzerGOP ──────────────────────────────────────────────────────
  console.log('\n── mediaAnalyzerGOP ──────────────────────────────────');

  { const a = makeArgs('/media/toshiba/Radarr/Film (2023)/Film.mkv',
      [makeStream({ r_frame_rate:'24000/1001', height:1080 })], ANALYZER_INPUTS);
    const o = await analyzerPlugin(a);
    eq(o.variables.gopKeyint, '48', '23.976fps -> keyint=48');
    eq(o.variables.isMovie, 'true', '/Radarr -> isMovie=true');
    eq(o.variables.isAnimation, 'false', 'no anime -> isAnimation=false');
    eq(o.variables.vBitrate, '3000k', 'film bitrate=3000k');
    eq(o.variables.vMaxRate, '6000k', 'maxrate=2x');
    eq(o.variables.vBufSize, '12000k', 'bufsize=4x');
    eq(o.variables.x265Tune, '', 'live-action -> no tune');
    cleanup(a); }

  { const a = makeArgs('/media/toshiba/Sonarr/Naruto S01/S01E01.mkv',
      [makeStream({ r_frame_rate:'25/1', height:720 })], ANALYZER_INPUTS);
    const o = await analyzerPlugin(a);
    eq(o.variables.gopKeyint, '50', '25fps -> keyint=50');
    eq(o.variables.isMovie, 'false', '/Sonarr -> isMovie=false');
    eq(o.variables.isAnimation, 'true', 'Naruto -> isAnimation=true');
    eq(o.variables.x265Tune, 'animation', 'anime -> tune=animation');
    eq(o.variables.vBitrate, '2000k', 'anime 720p HD -> 2000k');
    cleanup(a); }

  { const a = makeArgs('/media/toshiba/Sonarr/Naruto S01/S01E01.mkv',
      [makeStream({ r_frame_rate:'30000/1001', height:480 })], ANALYZER_INPUTS);
    const o = await analyzerPlugin(a);
    eq(o.variables.gopKeyint, '60', '29.97fps -> keyint=60');
    eq(o.variables.vBitrate, '1000k', 'anime SD 480p -> 1000k');
    cleanup(a); }

  // Windows backslash path normalization
  { const a = makeArgs('C:\\media\\toshiba\\Radarr\\Film (2023)\\Film.mkv',
      [makeStream({ r_frame_rate:'24/1', height:1080 })], ANALYZER_INPUTS);
    const o = await analyzerPlugin(a);
    eq(o.variables.isMovie, 'true', 'Windows backslash path: /Radarr still matched');
    cleanup(a); }

  // ── audioSelectorClamping ─────────────────────────────────────────────────
  console.log('\n── audioSelectorClamping ────────────────────────────');

  // EAC3 wins over AC3 by score
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'ac3',  bit_rate:'448000', channels:6, tags:{language:'ita'} }),
      makeStream({ index:2, codec_type:'audio', codec_name:'eac3', bit_rate:'640000', channels:6, tags:{language:'eng'} }),
    ];
    const a = makeArgs('/media/Radarr/Film.mkv', streams, AUDIO_INPUTS, { isMovie:'true' });
    const o = await audioPlugin(a);
    eq(o.outputNumber, 1, 'output 1 = tracks found');
    eq(o.variables.audioItaCodecName,   'ac3',  'ITA=ac3');
    eq(o.variables.audioEngCodecName,   'eac3', 'ENG=eac3');
    eq(o.variables.audioItaOpusBitrate, '448',  'ITA=min(640,448)=448');
    eq(o.variables.audioEngOpusBitrate, '640',  'ENG=min(640,640)=640');
    cleanup(a); }

  // EAC3 640k vs AC3 680k same lang — EAC3 wins by weight
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'eac3', bit_rate:'640000', channels:6, tags:{language:'ita'} }),
      makeStream({ index:2, codec_type:'audio', codec_name:'ac3',  bit_rate:'680000', channels:6, tags:{language:'ita'} }),
    ];
    const a = makeArgs('/media/Radarr/Film.mkv', streams, AUDIO_INPUTS, { isMovie:'true' });
    const o = await audioPlugin(a);
    eq(o.variables.audioItaCodecName,   'eac3', 'EAC3@640k > AC3@680k by codec weight');
    eq(o.variables.audioItaStreamIndex, '1',    'EAC3 at stream index 1');
    cleanup(a); }

  // Series DTS 768k >= 384 threshold -> 384
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'dts', bit_rate:'768000', channels:6, tags:{language:'ita'} }),
    ];
    const a = makeArgs('/media/Sonarr/Show/ep.mkv', streams, AUDIO_INPUTS, { isMovie:'false' });
    const o = await audioPlugin(a);
    eq(o.variables.audioItaOpusBitrate, '384', 'Series DTS 768k >= 384 -> Opus=384');
    cleanup(a); }

  // Series AC3 320k < 384 threshold -> 256
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'ac3', bit_rate:'320000', channels:6, tags:{language:'ita'} }),
    ];
    const a = makeArgs('/media/Sonarr/Show/ep.mkv', streams, AUDIO_INPUTS, { isMovie:'false' });
    const o = await audioPlugin(a);
    eq(o.variables.audioItaOpusBitrate, '256', 'Series AC3 320k < 384 -> Opus=256');
    cleanup(a); }

  // NEW: Series bitrate unknown (0) -> safe default 384k
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'dts', bit_rate:'0', channels:6, tags:{language:'ita'} }),
    ];
    const a = makeArgs('/media/Sonarr/Show/ep.mkv', streams, AUDIO_INPUTS, { isMovie:'false' });
    const o = await audioPlugin(a);
    eq(o.variables.audioItaOpusBitrate, '384', 'Series unknown bitrate (0) -> safe default 384k');
    cleanup(a); }

  // Stereo: min(128,192)=128
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'aac', bit_rate:'192000', channels:2, tags:{language:'ita'} }),
    ];
    const a = makeArgs('/media/Radarr/Film.mkv', streams, AUDIO_INPUTS, { isMovie:'true' });
    const o = await audioPlugin(a);
    eq(o.variables.audioItaOpusBitrate, '128', 'Stereo 192k -> min(128,192)=128');
    cleanup(a); }

  // Stereo: no upcoding — min(128,64)=64
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'aac', bit_rate:'64000', channels:2, tags:{language:'eng'} }),
    ];
    const a = makeArgs('/media/Radarr/Film.mkv', streams, AUDIO_INPUTS, { isMovie:'true' });
    const o = await audioPlugin(a);
    eq(o.variables.audioEngOpusBitrate, '64', 'Stereo 64k -> no upcoding, stays 64k');
    cleanup(a); }

  // No ITA/ENG -> output branch 2
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'ac3', bit_rate:'448000', channels:6, tags:{language:'fra'} }),
    ];
    const a = makeArgs('/media/Radarr/Film.mkv', streams, AUDIO_INPUTS, { isMovie:'true' });
    const o = await audioPlugin(a);
    eq(o.outputNumber, 2, 'No ITA/ENG -> output branch 2');
    cleanup(a); }

  // DTS-HD MA detection via profile field
  { const streams = [
      makeStream({ index:0, codec_type:'video' }),
      makeStream({ index:1, codec_type:'audio', codec_name:'dts', profile:'DTS-HD MA', bit_rate:'4000000', channels:8, tags:{language:'ita'} }),
    ];
    const a = makeArgs('/media/Radarr/Film.mkv', streams, AUDIO_INPUTS, { isMovie:'true' });
    const o = await audioPlugin(a);
    // DTS-HD MA weight=95, score=95*10000+4000=954000 — should be selected
    eq(o.variables.audioItaCodecName, 'dts', 'DTS-HD MA detected (codec_name=dts, profile contains MA)');
    // source 4000kbps, film target 640 -> Opus=min(640,4000)=640
    eq(o.variables.audioItaOpusBitrate, '640', 'DTS-HD MA 4Mbps film -> clamped to 640k');
    cleanup(a); }

  // ── buildAudioArgs structure check ────────────────────────────────────────
  console.log('\n── transcode2PassX265 buildAudioArgs structure ──────');
  const { plugin: transcodePlugin } = require(path.join(ROOT, 'LocalFlowPlugins/video/transcode2PassX265/1.0.0/index'));
  // Inspect the buildAudioArgs function by reading the file
  const transcodeCode = require('fs').readFileSync(path.join(ROOT, 'LocalFlowPlugins/video/transcode2PassX265/1.0.0/index.js'), 'utf8');
  ok(transcodeCode.includes('`-c:a:${audioTrackOut}`'), 'buildAudioArgs uses indexed -c:a:N (not global -c:a)');
  ok(transcodeCode.includes('`-b:a:${audioTrackOut}`'), 'buildAudioArgs uses indexed -b:a:N (not global -b:a)');
  ok(transcodeCode.includes('[...mapArgs, ...codecArgs]'), 'buildAudioArgs: maps first, then codec settings');
  ok(!transcodeCode.includes("'-c:a', 'libopus'"), 'no unindexed -c:a in buildAudioArgs');
  ok(transcodeCode.includes('bitrateKbps < copyHevcBelowKbps'), 'HEVC copy requires bitrate strictly below the limit');
  ok(transcodeCode.includes("copyHevcBelowKbps || '3000'"), 'HEVC copy limit defaults to 3000 kbps');
  ok(transcodeCode.includes("'-c:v', 'copy'"), 'compatible HEVC video uses stream copy');
  ok(transcodeCode.includes("normalizedKey === 'bps' || normalizedKey === 'bps-eng'"), 'HEVC copy check falls back to Matroska BPS metadata');
  ok(transcodeCode.includes('containerBitrate - otherStreamBitrate'), 'HEVC copy check estimates video bitrate from container and companion streams');
  ok(!transcodeCode.includes("'-map_metadata -1'"), 'pass 1 separates -map_metadata from its value');
  ok(!transcodeCode.includes("'-map_chapters -1'"), 'pass 1 separates -map_chapters from its value');
  ok(transcodeCode.includes('const statsForX265 = path.basename(statsFile)'), 'x265 stats file is relative to workDir on Windows');

  const copyPluginCode = require('fs').readFileSync(path.join(ROOT, 'LocalFlowPlugins/utility/copyToWorkDir/1.0.0/index.js'), 'utf8');
  ok(copyPluginCode.includes('[copyToWorkDir] Progress:'), 'copyToWorkDir reports copy progress in the job log');

  // ── Summary ───────────────────────────────────────────────────────────────
  console.log(`\n${'='.repeat(55)}`);
  console.log(`  ${passed} passed, ${failed} failed`);
  if (failed > 0) { console.error('  SOME TESTS FAILED'); process.exit(1); }
  else              console.log('  ALL LOGIC TESTS PASSED');
})();