const sharp = require('sharp');
const fs = require('fs');
const path = require('path');

async function createLogoWithText(faviconPath, outputPath, size) {
    try {
        // Load and resize favicon - smaller to leave room for text
        const faviconSize = Math.floor(size * 0.65);
        const faviconBuffer = await sharp(faviconPath)
            .resize(faviconSize, faviconSize, {
                fit: 'contain',
                background: { r: 255, g: 255, b: 255, alpha: 0 }
            })
            .toBuffer();
        
        // Create SVG with favicon and text
        const textSize = Math.floor(size * 0.12);
        const iconY = Math.floor(size * 0.10); // Logo higher up
        const textY = Math.floor(size * 0.92); // Text further down
        const iconX = Math.floor((size - faviconSize) / 2);
        
        const svg = `<?xml version="1.0" encoding="UTF-8"?>
<svg width="${size}" height="${size}" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <!-- White background -->
  <rect width="${size}" height="${size}" fill="#ffffff"/>
  <image href="data:image/png;base64,${faviconBuffer.toString('base64')}" 
         x="${iconX}" 
         y="${iconY}" 
         width="${faviconSize}" 
         height="${faviconSize}"/>
  <text x="${size / 2}" y="${textY}" 
        font-family="system-ui, -apple-system, sans-serif" 
        font-size="${textSize}" 
        font-weight="bold" 
        fill="#000000" 
        text-anchor="middle" 
        letter-spacing="-0.5">
    hördle.de
  </text>
</svg>`;
        
        // Convert SVG to PNG with white background
        await sharp(Buffer.from(svg))
            .resize(size, size)
            .png()
            .toFile(outputPath);
        
        console.log(`✅ Created ${path.basename(outputPath)} (${size}x${size})`);
    } catch (error) {
        console.error(`❌ Error creating ${outputPath}:`, error.message);
    }
}

async function createSVGLogo(faviconPath, outputPath, size) {
    try {
        // Load and resize favicon - smaller to leave room for text
        const faviconSize = Math.floor(size * 0.65);
        const faviconBuffer = await sharp(faviconPath)
            .resize(faviconSize, faviconSize, {
                fit: 'contain',
                background: { r: 255, g: 255, b: 255, alpha: 0 }
            })
            .toBuffer();
        
        // Create SVG with favicon and text
        const textSize = Math.floor(size * 0.12);
        const iconY = Math.floor(size * 0.10); // Logo higher up
        const textY = Math.floor(size * 0.92); // Text further down
        const iconX = Math.floor((size - faviconSize) / 2);
        
        const svg = `<?xml version="1.0" encoding="UTF-8"?>
<svg width="${size}" height="${size}" viewBox="0 0 ${size} ${size}" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <!-- White background covering entire image -->
  <rect width="${size}" height="${size}" fill="#ffffff"/>
  <image href="data:image/png;base64,${faviconBuffer.toString('base64')}" 
         x="${iconX}" 
         y="${iconY}" 
         width="${faviconSize}" 
         height="${faviconSize}"/>
  <text x="${size / 2}" y="${textY}" 
        font-family="system-ui, -apple-system, sans-serif" 
        font-size="${textSize}" 
        font-weight="bold" 
        fill="#000000" 
        text-anchor="middle" 
        letter-spacing="-0.5">
    hördle.de
  </text>
</svg>`;
        
        fs.writeFileSync(outputPath, svg);
        console.log(`✅ Created ${path.basename(outputPath)} (${size}x${size} SVG)`);
    } catch (error) {
        console.error(`❌ Error creating ${outputPath}:`, error.message);
    }
}

async function main() {
    const faviconPath = path.join(__dirname, '..', 'app', 'favicon.ico');
    const publicDir = path.join(__dirname, '..', 'public');
    
    if (!fs.existsSync(faviconPath)) {
        console.error('❌ Favicon not found at', faviconPath);
        return;
    }
    
    // Extract favicon to PNG first for processing
    const tempFavicon = path.join(publicDir, 'favicon-temp.png');
    const faviconBuffer = fs.readFileSync(faviconPath);
    
    // Convert ICO to PNG
    await sharp(faviconBuffer)
        .resize(1024, 1024, { fit: 'contain' })
        .png()
        .toFile(tempFavicon);
    
    console.log('✅ Extracted favicon to PNG\n');
    
    // Create SVG logo
    await createSVGLogo(tempFavicon, path.join(publicDir, 'logo.svg'), 512);
    await createSVGLogo(tempFavicon, path.join(publicDir, 'logo-large.svg'), 1024);
    
    // Create PNG logos with text in various sizes
    await createLogoWithText(tempFavicon, path.join(publicDir, 'logo-128.png'), 128);
    await createLogoWithText(tempFavicon, path.join(publicDir, 'logo-256.png'), 256);
    await createLogoWithText(tempFavicon, path.join(publicDir, 'logo-512.png'), 512);
    await createLogoWithText(tempFavicon, path.join(publicDir, 'logo-1024.png'), 1024);
    
    // Clean up temp file
    if (fs.existsSync(tempFavicon)) {
        fs.unlinkSync(tempFavicon);
    }
    
    console.log('\n✨ Logo creation complete!');
}

main();