Website Domain And Web Interface Address Database Tool

function processImage(
    originalImg, 
    domainName = "admin.example.com", 
    dbName = "Production DB",
    siteName = "Main Corporate Site",
    interfaceName = "Web Control Panel",
    ipAddress = "10.0.0.51"
) {
    const canvas = document.createElement('canvas');
    const ctx = canvas.getContext('2d');

    // Make sure the canvas is wide enough to display text elegantly
    const minWidth = 600; 
    const maxWidth = 1600;
    let width = originalImg.width;
    let height = originalImg.height;
    
    if (width < minWidth) {
        const scale = minWidth / width;
        width = minWidth;
        height = height * scale;
    } else if (width > maxWidth) {
        const scale = maxWidth / width;
        width = maxWidth;
        height = height * scale;
    }

    // Dynamic UI component scales
    const topBarHeight = Math.min(120, Math.max(50, width * 0.06));
    const bottomBarHeight = Math.max(70, width * 0.08);
    const radius = topBarHeight * 0.2;

    canvas.width = width;
    canvas.height = height + topBarHeight + bottomBarHeight;

    // Helper for browser window shape
    function drawRoundRect(context, x, y, w, h, radii) {
        const [tl, tr, br, bl] = radii;
        context.beginPath();
        context.moveTo(x + tl, y);
        context.lineTo(x + w - tr, y);
        context.quadraticCurveTo(x + w, y, x + w, y + tr);
        context.lineTo(x + w, y + h - br);
        context.quadraticCurveTo(x + w, y + h, x + w - br, y + h);
        context.lineTo(x + bl, y + h);
        context.quadraticCurveTo(x, y + h, x, y + h - bl);
        context.lineTo(x, y + tl);
        context.quadraticCurveTo(x, y, x + tl, y);
        context.closePath();
    }

    // Apply main clip area with rounded corners
    drawRoundRect(ctx, 0, 0, canvas.width, canvas.height, [radius, radius, radius, radius]);
    ctx.clip();

    // Fill a white background to support transparent images cleanly
    ctx.fillStyle = '#ffffff';
    ctx.fillRect(0, 0, canvas.width, canvas.height);

    // ==========================================
    // 1. TOP BAR (BROWSER ADDRESS INTERFACE)
    // ==========================================
    ctx.fillStyle = '#f5f5f5';
    ctx.fillRect(0, 0, width, topBarHeight);

    ctx.fillStyle = '#dcdcdc'; // Separator line beneath top bar
    ctx.fillRect(0, topBarHeight - 1, width, 1); 

    // Window control buttons
    const dotRadius = topBarHeight * 0.15;
    const dotY = topBarHeight / 2;
    let dotX = topBarHeight * 0.4;
    const dotSpacing = dotRadius * 3.5;

    ['#ff5f56', '#ffbd2e', '#27c93f'].forEach(color => {
        ctx.fillStyle = color;
        ctx.beginPath();
        ctx.arc(dotX, dotY, dotRadius, 0, Math.PI * 2);
        ctx.fill();
        dotX += dotSpacing;
    });

    // Domain / Address bar
    const addrWidth = width * 0.5;
    const addrHeight = topBarHeight * 0.55;
    const addrX = (width - addrWidth) / 2;
    const addrY = (topBarHeight - addrHeight) / 2;
    const addrRadius = addrHeight / 2;

    ctx.fillStyle = '#ffffff';
    drawRoundRect(ctx, addrX, addrY, addrWidth, addrHeight, [addrRadius, addrRadius, addrRadius, addrRadius]);
    ctx.fill();

    // Domain Text
    ctx.fillStyle = '#555555';
    const topFontSize = addrHeight * 0.45;
    ctx.font = `${topFontSize}px sans-serif`;
    ctx.textAlign = 'center';
    ctx.textBaseline = 'middle';
    
    const domainText = `🔒 ${String(domainName)}`;
    const maxDomainWidth = addrWidth - topFontSize * 2;
    ctx.fillText(domainText, width / 2, topBarHeight / 2 + topFontSize * 0.05, maxDomainWidth);

    // ==========================================
    // 2. ORIGINAL IMAGE CONTENT
    // ==========================================
    ctx.drawImage(originalImg, 0, topBarHeight, width, height);

    // ==========================================
    // 3. BOTTOM BAR (DATABASE & SYSTEM DETAILS)
    // ==========================================
    const yOffset = topBarHeight + height;
    ctx.fillStyle = '#1e293b'; // Slate dark background
    ctx.fillRect(0, yOffset, width, bottomBarHeight);

    ctx.fillStyle = '#0f172a'; // Top separator for bottom bar
    ctx.fillRect(0, yOffset, width, 2);

    const paddingX = width * 0.04;
    const colSpacing = width * 0.48; // Space between columns

    const row1Y = yOffset + bottomBarHeight * 0.33;
    const row2Y = yOffset + bottomBarHeight * 0.67;

    const labelColor = '#94a3b8';
    const valueColor = '#f8fafc';

    ctx.textAlign = 'left';
    ctx.textBaseline = 'middle';

    const textFontSize = bottomBarHeight * 0.22;

    function drawInfoPair(label, value, x, y) {
        // Draw bold Label
        ctx.font = `bold ${textFontSize}px sans-serif`;
        ctx.fillStyle = labelColor;
        const prefix = `${label}: `;
        ctx.fillText(prefix, x, y);
        
        // Draw Value next to it
        const labelWidth = ctx.measureText(prefix).width;
        ctx.font = `normal ${textFontSize}px sans-serif`;
        ctx.fillStyle = valueColor;
        
        const valString = String(value);
        let maxValWidth = (width * 0.45) - labelWidth - 10;
        if (maxValWidth <= 0) maxValWidth = 50; // Fallback
        
        ctx.fillText(valString, x + labelWidth, y, maxValWidth);
    }

    // Grid details (match required descriptions exactly)
    drawInfoPair("Сайт", siteName, paddingX, row1Y);
    drawInfoPair("База данных", dbName, paddingX + colSpacing, row1Y);
    drawInfoPair("Веб интерфейс", interfaceName, paddingX, row2Y);
    drawInfoPair("Адрес", ipAddress, paddingX + colSpacing, row2Y);

    return canvas;
}