Image To Thx 1983-2023 Search Tool

function processImage(originalImg, query = "Thx 1983-2023", position = "center") {
    const canvas = document.createElement('canvas');
    const ctx = canvas.getContext('2d');
    const width = originalImg.width;
    const height = originalImg.height;

    canvas.width = width;
    canvas.height = height;

    // Draw the original image as the background
    ctx.drawImage(originalImg, 0, 0);

    // Calculate dimensions for the search bar overlay
    let barWidth = width * 0.8;
    if (barWidth > 800) barWidth = 800;
    if (barWidth < 200) barWidth = width * 0.95;

    let barHeight = Math.max(40, barWidth * 0.1);
    if (barHeight > width * 0.15) barHeight = width * 0.15;
    if (barHeight > height * 0.4) barHeight = height * 0.4;

    const x = (width - barWidth) / 2;
    let y;

    // Determine vertical position
    switch (position.toLowerCase()) {
        case 'top':
            y = Math.max(20, height * 0.1);
            break;
        case 'bottom':
            y = Math.min(height - barHeight - 20, height * 0.9 - barHeight);
            break;
        case 'center':
        default:
            y = (height - barHeight) / 2;
            break;
    }

    // Apply drop shadow for the search bar
    ctx.shadowColor = 'rgba(0, 0, 0, 0.35)';
    ctx.shadowBlur = barHeight * 0.3;
    ctx.shadowOffsetY = barHeight * 0.15;

    // Draw rounded rectangle (pill shape) for the search bar
    ctx.beginPath();
    const radius = barHeight / 2;
    ctx.moveTo(x + radius, y);
    ctx.lineTo(x + barWidth - radius, y);
    ctx.quadraticCurveTo(x + barWidth, y, x + barWidth, y + radius);
    ctx.lineTo(x + barWidth, y + barHeight - radius);
    ctx.quadraticCurveTo(x + barWidth, y + barHeight, x + barWidth - radius, y + barHeight);
    ctx.lineTo(x + radius, y + barHeight);
    ctx.quadraticCurveTo(x, y + barHeight, x, y + barHeight - radius);
    ctx.lineTo(x, y + radius);
    ctx.quadraticCurveTo(x, y, x + radius, y);
    ctx.closePath();

    ctx.fillStyle = '#ffffff';
    ctx.fill();

    // Reset shadow to avoid affecting other drawings
    ctx.shadowColor = 'transparent';

    // Draw magnifying glass icon
    ctx.strokeStyle = '#9aa0a6';
    ctx.lineWidth = Math.max(2, barHeight * 0.06);
    ctx.lineCap = 'round';
    ctx.beginPath();
    const cx = x + barHeight * 0.65;
    const cy = y + barHeight * 0.45;
    const r = barHeight * 0.15;
    ctx.arc(cx, cy, r, 0, Math.PI * 2);
    ctx.moveTo(cx + r * 0.707, cy + r * 0.707);
    ctx.lineTo(cx + r * 2.0, cy + r * 2.0);
    ctx.stroke();

    // Draw search text
    ctx.fillStyle = '#202124';
    ctx.font = `${barHeight * 0.4}px Arial, sans-serif`;
    ctx.textBaseline = 'middle';
    
    // Prevent text from overflowing the search bar on the right side
    ctx.save();
    ctx.beginPath();
    ctx.rect(x + barHeight * 1.3, y, barWidth - barHeight * 1.8, barHeight);
    ctx.clip();
    
    ctx.fillText(query, x + barHeight * 1.3, y + barHeight / 2);
    ctx.restore();

    return canvas;
}