Florida Driver License Template Generator

async function processImage(
    originalImg,
    licenseNum = "D123-456-78-901-0",
    lastName = "PUBLIC",
    firstNames = "JOHN Q",
    dob = "12/31/1990",
    exp = "12/31/2028",
    iss = "12/31/2020",
    address1 = "123 GOVERNOR SQ",
    address2 = "TALLAHASSEE, FL 32301",
    sex = "M",
    hgt = "5-10",
    classType = "E",
    endorsements = "NONE",
    restrictions = "NONE"
) {
    // 1. Ensure the custom cursive font is loaded for the signature
    const fontUrl = 'https://fonts.googleapis.com/css2?family=Dancing+Script:wght@600&display=swap';
    if (!document.getElementById('font-dancing-script')) {
        const link = document.createElement('link');
        link.id = 'font-dancing-script';
        link.rel = 'stylesheet';
        link.href = fontUrl;
        document.head.appendChild(link);
    }
    
    try {
        await document.fonts.load('36px "Dancing Script"');
        await new Promise(resolve => setTimeout(resolve, 300)); // Short buffer to ensure render readyness
    } catch (e) {
        console.warn("Could not explicitly await the font, continuing with fallbacks.");
    }

    // 2. Setup the Canvas (CR80 ID Aspect Ratio)
    const canvas = document.createElement('canvas');
    canvas.width = 800;
    canvas.height = 504;
    const ctx = canvas.getContext('2d');

    // 3. Draw Realistic Procedural Background
    // Base pastel gradient
    const bgGrad = ctx.createLinearGradient(0, 0, 800, 504);
    bgGrad.addColorStop(0, '#f2faed'); // Very pale green
    bgGrad.addColorStop(0.5, '#fdebd8'); // Pale peach
    bgGrad.addColorStop(1, '#dff3fc'); // Pale cyan
    ctx.fillStyle = bgGrad;
    ctx.fillRect(0, 0, 800, 504);

    // Background State Seal / Medallion graphic (Large & Faint)
    ctx.save();
    ctx.translate(450, 250);
    ctx.scale(3, 3);
    ctx.globalAlpha = 0.05;
    ctx.beginPath();
    ctx.arc(0, 0, 60, 0, Math.PI * 2);
    ctx.lineWidth = 15;
    ctx.strokeStyle = '#daa520';
    ctx.stroke();
    ctx.fillStyle = '#daa520';
    ctx.beginPath();
    ctx.arc(0, 0, 45, 0, Math.PI * 2);
    ctx.fill();
    ctx.fillStyle = '#fff';
    ctx.font = '10px Arial';
    ctx.fillText('SEAL OF FLORIDA', -40, 5);
    ctx.restore();

    // Large Faded text "FLORIDA" across background
    ctx.save();
    ctx.translate(-20, 350);
    ctx.rotate(-15 * Math.PI / 180);
    ctx.font = 'bold 150px Arial';
    ctx.fillStyle = 'rgba(0, 50, 150, 0.04)';
    ctx.fillText('FLORIDA', 0, 0);
    ctx.restore();

    // Microprint background lines overlay (security feature wrapper)
    ctx.lineWidth = 0.5;
    ctx.strokeStyle = 'rgba(0, 0, 0, 0.04)';
    for (let i = 0; i < 504; i += 8) {
        ctx.beginPath();
        ctx.moveTo(0, i);
        ctx.lineTo(800, i);
        ctx.stroke();
    }

    // 4. Draw Header Banner
    const bannerGrad = ctx.createLinearGradient(0, 0, 800, 0);
    bannerGrad.addColorStop(0, '#103e87');  // Deep blue
    bannerGrad.addColorStop(0.5, '#2ca5c0'); // Cyan wave
    bannerGrad.addColorStop(1, '#8bc34a');   // Greenish right edge
    ctx.fillStyle = bannerGrad;
    ctx.fillRect(0, 0, 800, 95);

    // Header Text
    ctx.fillStyle = '#ffffff';
    ctx.font = 'bold 50px Arial';
    ctx.fillText('FLORIDA', 240, 55);

    ctx.font = 'bold 18px Arial';
    ctx.fillStyle = '#ffde00';
    ctx.fillText('DRIVER LICENSE', 245, 80);
    
    ctx.font = 'italic 16px Arial';
    ctx.fillStyle = '#fff';
    ctx.fillText('USA', 460, 55);

    // Real ID Star
    ctx.beginPath();
    ctx.arc(740, 45, 23, 0, Math.PI * 2);
    ctx.fillStyle = '#cfb53b';
    ctx.fill();
    ctx.fillStyle = '#fff';
    ctx.font = '28px Arial';
    ctx.fillText('★', 726, 56);

    // 5. Helper Function to Draw Formatted Fields
    function drawField(labelNum, labelText, value, x, y, valColor = '#000', valSize = 16) {
        ctx.fillStyle = '#d33'; // Common red for labels
        ctx.font = 'bold 11px Arial';
        let offsetX = 0;
        if (labelNum) {
            ctx.fillText(labelNum, x, y);
            offsetX = ctx.measureText(labelNum).width + 3;
        }
        if (labelText) {
            ctx.fillStyle = '#01458e'; // Deep blue for labels text
            ctx.fillText(labelText, x + offsetX, y);
        }
        ctx.fillStyle = valColor;
        ctx.font = `bold ${valSize}px Arial`;
        ctx.fillText(value, x, y + valSize + 2);
    }

    // 6. Map ID Data to Layout
    drawField('1d', 'DL No.', licenseNum.toUpperCase(), 250, 130, '#000', 20);
    drawField('1', 'Last', lastName.toUpperCase(), 250, 185, '#000', 18);
    drawField('2', 'First', firstNames.toUpperCase(), 250, 240, '#000', 18);
    
    // Address (Two lines)
    drawField('8', 'Address', address1.toUpperCase(), 250, 295, '#000', 14);
    ctx.fillStyle = '#000';
    ctx.font = 'bold 14px Arial';
    ctx.fillText(address2.toUpperCase(), 250, 330);

    // Bottom Rows - Specific Data Attributes
    drawField('3', 'DOB', dob, 250, 365, '#d33', 18); // DOB is visibly marked Red
    drawField('15', 'Sex', sex.toUpperCase(), 370, 365, '#000', 18);
    drawField('16', 'Hgt', hgt.toUpperCase(), 440, 365, '#000', 18);
    drawField('4a', 'ISS', iss, 510, 365, '#000', 18);
    drawField('4b', 'EXP', exp, 610, 365, '#d33', 18); // EXP is visibly marked Red

    drawField('9', 'Class', classType.toUpperCase(), 250, 430, '#000', 16);
    drawField('12', 'Endors', endorsements.toUpperCase(), 350, 430, '#000', 16);
    drawField('12', 'Restric', restrictions.toUpperCase(), 490, 430, '#000', 16);

    // Organ Donor graphic
    ctx.fillStyle = '#d33';
    ctx.font = '22px Arial';
    ctx.fillText('♥', 745, 430);
    ctx.font = 'bold 8px Arial';
    ctx.fillStyle = '#000';
    ctx.fillText('DONOR', 742, 442);

    // 7. Image Rendering Helpers (with Object-fit Cover)
    function drawImageRounded(img, x, y, w, h, radius) {
        ctx.save();
        ctx.beginPath();
        ctx.moveTo(x + radius, y);
        ctx.lineTo(x + w - radius, y);
        ctx.quadraticCurveTo(x + w, y, x + w, y + radius);
        ctx.lineTo(x + w, y + h - radius);
        ctx.quadraticCurveTo(x + w, y + h, x + w - radius, y + h);
        ctx.lineTo(x + radius, y + h);
        ctx.quadraticCurveTo(x, y + h, x, y + h - radius);
        ctx.lineTo(x, y + radius);
        ctx.quadraticCurveTo(x, y, x + radius, y);
        ctx.closePath();
        ctx.clip();

        const imgAspect = img.naturalWidth / img.naturalHeight;
        const boxAspect = w / h;
        let sX = 0, sY = 0, sW = img.naturalWidth, sH = img.naturalHeight;

        if (imgAspect > boxAspect) {
            sW = sH * boxAspect;
            sX = (img.naturalWidth - sW) / 2;
        } else {
            sH = sW / boxAspect;
            sY = (img.naturalHeight - sH) / 2;
        }
        ctx.drawImage(img, sX, sY, sW, sH, x, y, w, h);
        ctx.restore();
    }

    // 8. Draw Ghost Photo (Secondary smaller portrait in right corner)
    ctx.save();
    ctx.globalAlpha = 0.35; // Faded blend
    ctx.globalCompositeOperation = 'darken';
    drawImageRounded(originalImg, 650, 190, 110, 140, 10);
    ctx.restore();

    // 9. Draw Primary Photo
    drawImageRounded(originalImg, 30, 120, 190, 250, 15);

    // Add delicate border around Primary Photo
    ctx.lineWidth = 1;
    ctx.strokeStyle = 'rgba(0, 0, 0, 0.2)';
    ctx.strokeRect(30, 120, 190, 250);

    // 10. Generate cursive signature below photo
    ctx.font = '36px "Dancing Script", "Segoe Script", "Brush Script MT", cursive';
    ctx.fillStyle = '#222';
    // Use first word of firstNames and the lastName
    const sigName = `${firstNames.split(' ')[0]} ${lastName}`;
    ctx.fillText(sigName, 40, 430);

    // 11. Add structural borders to outer template edge
    ctx.lineWidth = 3;
    ctx.strokeStyle = '#999';
    ctx.strokeRect(1, 1, 798, 502);

    return canvas;
}