import { PlayEngine } from "@irithell-js/yt-play";

const engine = new PlayEngine();

// Search and download
const metadata = await engine.search("linkin park numb");
if (!metadata) throw new Error("Not found");

const requestId = engine.generateRequestId();
await engine.preload(metadata, requestId);

// Get audio file
const { file: audioFile } = await engine.getOrDownload(requestId, "audio");
console.log("Audio:", audioFile.path);

// Get video file
const { file: videoFile } = await engine.getOrDownload(requestId, "video");
console.log("Video:", videoFile.path);

// Cleanup cache
engine.cleanup(requestId);

const engine = new PlayEngine({
  // Cache settings
  cacheDir: "./cache", // Cache directory (default: OS temp)
  ttlMs: 5 * 60_000, // Cache TTL in ms (default: 3min)
  cleanupIntervalMs: 30_000, // Cleanup interval (default: 30s)
  preloadBuffer: true, // Load files into RAM (default: true)

  // Quality settings
  preferredAudioKbps: 128, // Audio quality: 320|256|192|128|96|64
  preferredVideoP: 720, // Video quality: 1080|720|480|360
  maxPreloadDurationSeconds: 1200, // Max duration for preload (default: 20min)

  // Performance settings (auto-optimized)
  useAria2c: true, // Use aria2c for downloads (default: auto)
  concurrentFragments: 8, // Parallel fragments (default: 5)
  ytdlpTimeoutMs: 300_000, // yt-dlp timeout (default: 5min)

  // Binary paths (optional - auto-detected)
  ytdlpBinaryPath: "./bin/yt-dlp",
  aria2cPath: "./bin/aria2c",
  ffmpegPath: "/usr/bin/ffmpeg", // Optional

  // Logging
  logger: console, // Logger instance (optional)

  // cookies (optional for VPS and dockers)
  cookiesPath: "./cookies.txt",
  // or
  cookiesFromBrowser: "firefox", // extract from browser
});

// High quality (larger files)
const hq = new PlayEngine({
  preferredAudioKbps: 320,
  preferredVideoP: 1080,
});

// Balanced (recommended)
const balanced = new PlayEngine({
  preferredAudioKbps: 128,
  preferredVideoP: 720,
});

// Low quality (faster, smaller)
const lq = new PlayEngine({
  preferredAudioKbps: 96,
  preferredVideoP: 480,
});

const metadata = await engine.search("artist - song name");
// Returns: { title, author, duration, durationSeconds, thumb, videoId, url }

const requestId = engine.generateRequestId("audio"); // "audio_1234567890_abc123"

await engine.preload(metadata, requestId);
// Downloads audio + video if <1h, only audio if >1h (96kbps)

const result = await engine.getOrDownload(requestId, "audio");
// Returns: { metadata, file: { path, size, info, buffer? }, direct: boolean }

console.log(result.file.path); // "/tmp/cache/audio_xxx.m4a"
console.log(result.file.size); // 8457234 (bytes)
console.log(result.file.info.quality); // "128kbps m4a"
console.log(result.direct); // false if from cache, true if direct download

const cached = await engine.waitCache(requestId, "audio", 8000, 500);
if (cached) {
  console.log("Cache ready:", cached.path);
} else {
  console.log("Timeout - falling back to direct download");
}

engine.cleanup(requestId); // Deletes audio + video from cache

const entry = engine.getFromCache(requestId);
if (entry) {
  console.log(entry.metadata.title);
  console.log(entry.audio?.path);
  console.log(entry.loading); // true if preload in progress
}

const metadata = await engine.search("2h music mix");

// Automatically uses:
// - Audio: 96kbps (reduced quality)
// - Video: skipped (audio only)
await engine.preload(metadata, requestId);

const { file } = await engine.getOrDownload(requestId, "audio");
// Fast download with reduced quality

import path from "path";

const engine = new PlayEngine({
  cacheDir: path.join(process.cwd(), "downloads"),
  ttlMs: 10 * 60_000, // 10 minutes
});

const startTime = Date.now();
await engine.preload(metadata, requestId);
const preloadTime = Date.now() - startTime;

console.log(`Preload took ${(preloadTime / 1000).toFixed(2)}s`);

try {
  const metadata = await engine.search("non-existent-video");
  if (!metadata) {
    console.error("Video not found");
    return;
  }

  await engine.preload(metadata, requestId);
  const { file } = await engine.getOrDownload(requestId, "audio");
  console.log("Success:", file.path);
} catch (error) {
  console.error("Download failed:", error.message);
}

const engine = new PlayEngine({
  ytdlpBinaryPath: "/custom/path/yt-dlp",
  aria2cPath: "/custom/path/aria2c",
});

// Enable aria2c explicitly
const engine = new PlayEngine({
  useAria2c: true,
  concurrentFragments: 10, // Increase parallelism
});

// Clear cache directory manually
import fs from "fs";
fs.rmSync("./cache", { recursive: true, force: true });