const Database = require('better-sqlite3');
const path = require('path');
const fs = require('fs');

// Demo albums data
const albums = [
  {
    id: "echoes-of-time",
    title: "Echoes of Time",
    coverImage: "/albums/echoes-of-time.jpg",
    year: 2024,
    genre: "Progressive Rock",
    price: 350000,
    tag: "Album",
    format: "flac",
    bitrate: "lossless",
    description: "An epic journey through time and space, featuring complex polyrhythms, atmospheric keyboards, and powerful guitar solos. This concept album tells the story of humanity's relationship with time.",
    songs: [
      {
        id: "echoes-1",
        title: "Temporal Flux",
        duration: "8:45",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/echoes-1-full.mp3"
      },
      {
        id: "echoes-2",
        title: "Clockwork Dreams",
        duration: "6:23",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/echoes-2-full.mp3"
      },
      {
        id: "echoes-3",
        title: "The Eternal Now",
        duration: "12:17",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/echoes-3-full.mp3"
      },
      {
        id: "echoes-4",
        title: "Yesterday's Tomorrow",
        duration: "7:56",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/echoes-4-full.mp3"
      },
      {
        id: "echoes-5",
        title: "Echoes Fade",
        duration: "15:32",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/echoes-5-full.mp3"
      }
    ]
  },
  {
    id: "crimson-horizons",
    title: "Crimson Horizons",
    coverImage: "/albums/crimson-horizons.jpg",
    year: 2023,
    genre: "Progressive Rock",
    price: 10.99,
    tag: "Deluxe",
    format: "mp3",
    bitrate: "320kbps",
    description: "A darker, heavier exploration of prog rock with crushing riffs and intricate instrumental passages. Features extended improvisational sections and powerful vocals.",
    songs: [
      {
        id: "crimson-1",
        title: "Red Dawn",
        duration: "9:12",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/crimson-1-full.mp3"
      },
      {
        id: "crimson-2",
        title: "Horizon's Edge",
        duration: "7:45",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/crimson-2-full.mp3"
      },
      {
        id: "crimson-3",
        title: "Scarlet Skies",
        duration: "11:03",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/crimson-3-full.mp3"
      },
      {
        id: "crimson-4",
        title: "Blood Moon Rising",
        duration: "8:34",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/crimson-4-full.mp3"
      },
      {
        id: "crimson-5",
        title: "Into the Void",
        duration: "13:21",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/crimson-5-full.mp3"
      }
    ]
  },
  {
    id: "cosmic-resonance",
    title: "Cosmic Resonance",
    coverImage: "/albums/cosmic-resonance.jpg",
    year: 2022,
    genre: "Space Rock",
    price: 11.99,
    tag: "EP",
    format: "wav",
    bitrate: "lossless",
    description: "A space-themed odyssey combining ambient soundscapes with progressive rock energy. Synthesizers and guitars intertwine to create an otherworldly sonic experience.",
    songs: [
      {
        id: "cosmic-1",
        title: "Stellar Winds",
        duration: "10:24",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/cosmic-1-full.mp3"
      },
      {
        id: "cosmic-2",
        title: "Nebula Dreams",
        duration: "8:17",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/cosmic-2-full.mp3"
      },
      {
        id: "cosmic-3",
        title: "Gravity Wells",
        duration: "9:45",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/cosmic-3-full.mp3"
      },
      {
        id: "cosmic-4",
        title: "Cosmic Dance",
        duration: "11:56",
        previewUrl: "/audio/preview-1.mp3",
        fullUrl: "/audio/cosmic-4-full.mp3"
      }
    ]
  }
];

function seedDatabase() {
  try {
    // Database path
    const dbPath = path.join(process.cwd(), 'data', 'parsa.db');

    // Create data directory if it doesn't exist
    const dataDir = path.join(process.cwd(), 'data');
    if (!fs.existsSync(dataDir)) {
      fs.mkdirSync(dataDir, { recursive: true });
      console.log('✓ Created data directory');
    }

    // Initialize database
    const db = new Database(dbPath);
    db.pragma('journal_mode = WAL');
    console.log('✓ Connected to database');

    // Create albums table
    db.exec(`
      CREATE TABLE IF NOT EXISTS albums (
        id TEXT PRIMARY KEY,
        title TEXT NOT NULL,
        coverImage TEXT NOT NULL,
        year INTEGER NOT NULL,
        genre TEXT NOT NULL,
        description TEXT NOT NULL,
        price REAL NOT NULL,
        tag TEXT NOT NULL DEFAULT 'Album',
        format TEXT NOT NULL DEFAULT 'mp3',
        bitrate TEXT NOT NULL DEFAULT '320kbps',
        songs TEXT NOT NULL,
        createdAt INTEGER DEFAULT (strftime('%s', 'now')),
        updatedAt INTEGER DEFAULT (strftime('%s', 'now'))
      )
    `);
    console.log('✓ Created albums table');

    // Create purchases table
    db.exec(`
      CREATE TABLE IF NOT EXISTS purchases (
        id INTEGER PRIMARY KEY AUTOINCREMENT,
        albumId TEXT NOT NULL,
        transactionId TEXT NOT NULL UNIQUE,
        customerName TEXT,
        email TEXT,
        phoneNumber TEXT,
        txReceipt TEXT,
        purchaseDate INTEGER NOT NULL,
        createdAt INTEGER DEFAULT (strftime('%s', 'now')),
        FOREIGN KEY (albumId) REFERENCES albums(id) ON DELETE CASCADE
      )
    `);
    console.log('✓ Created purchases table');

    // Create indexes
    db.exec(`
      CREATE INDEX IF NOT EXISTS idx_purchases_albumId ON purchases(albumId);
      CREATE INDEX IF NOT EXISTS idx_purchases_transactionId ON purchases(transactionId);
    `);
    console.log('✓ Created indexes');

    // Clear existing albums
    db.exec('DELETE FROM albums');
    console.log('✓ Cleared existing albums');

    // Insert demo albums
    const insert = db.prepare(`
      INSERT INTO albums (id, title, coverImage, year, genre, description, price, tag, format, bitrate, songs)
      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
    `);

    const insertMany = db.transaction((albums) => {
      for (const album of albums) {
        insert.run(
          album.id,
          album.title,
          album.coverImage,
          album.year,
          album.genre,
          album.description,
          album.price,
          album.tag,
          album.format,
          album.bitrate,
          JSON.stringify(album.songs)
        );
      }
    });

    insertMany(albums);
    console.log(`✓ Inserted ${albums.length} demo albums`);

    // Verify
    const count = db.prepare('SELECT COUNT(*) as count FROM albums').get();
    console.log(`✓ Database now contains ${count.count} albums`);

    db.close();
    console.log('\n✅ Database seeded successfully!');
    console.log('\nYou can now run: pnpm dev');

  } catch (error) {
    console.error('\n❌ Error seeding database:', error.message);
    console.error('\nTrying to rebuild better-sqlite3...');

    const { execSync } = require('child_process');
    try {
      execSync('npm rebuild better-sqlite3', { stdio: 'inherit' });
      console.log('\n✓ Rebuilt better-sqlite3, please run the seed script again: pnpm seed');
    } catch (rebuildError) {
      console.error('❌ Failed to rebuild better-sqlite3');
      console.error('Please try manually: npm rebuild better-sqlite3');
    }
    process.exit(1);
  }
}

seedDatabase();