Colorado Driver License Fictional Person Generator

async function processImage(
    originalImg,
    firstName = "JOHN",
    lastName = "DOE",
    address = "123 FICTIONAL ST\nDENVER, CO 80202",
    dob = "01/01/1990",
    licenseNumber = "98-765-4321",
    sex = "M",
    height = "5-10",
    weight = "180",
    eyes = "BRO",
    hair = "BLK",
    expDate = "01/01/2030"
) {
    // 1. Setup Canvas (CR80 ratio approximately 860x540)
    const canvas = document.createElement("canvas");
    canvas.width = 860;
    canvas.height = 540;
    const ctx = canvas.getContext("2d");

    // 2. Load Google Fonts
    const fontCSS = document.createElement("link");
    fontCSS.href = "https://fonts.googleapis.com/css2?family=Dancing+Script:wght@700&family=Oswald:wght@500;700&family=Roboto:wght@400;700;900&display=swap";
    fontCSS.rel = "stylesheet";
    document.head.appendChild(fontCSS);

    try {
        await document.fonts.load('700 52px Oswald');
        await document.fonts.load('700 36px "Dancing Script"');
        await document.fonts.load('700 24px Roboto');
        await document.fonts.load('400 12px Roboto');
    } catch (e) {
        console.warn('Custom fonts load timeout. Using fallbacks.', e);
    }

    // Helper: Rounded Rectangle Path
    function makeRoundRect(ctx, x, y, w, h, r) {
        ctx.beginPath();
        ctx.moveTo(x + r, y);
        ctx.lineTo(x + w - r, y);
        ctx.quadraticCurveTo(x + w, y, x + w, y + r);
        ctx.lineTo(x + w, y + h - r);
        ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);
        ctx.lineTo(x + r, y + h);
        ctx.quadraticCurveTo(x, y + h, x, y + h - r);
        ctx.lineTo(x, y + r);
        ctx.quadraticCurveTo(x, y, x + r, y);
        ctx.closePath();
    }

    // 3. Base Card Canvas Clipping (Rounded card corners)
    ctx.save();
    makeRoundRect(ctx, 0, 0, 860, 540, 20);
    ctx.clip();

    // 4. Background Gradient
    const bgGrd = ctx.createLinearGradient(0, 0, 0, 540);
    bgGrd.addColorStop(0, "#DDF0F9"); // Sky light blue
    bgGrd.addColorStop(0.35, "#FFFFFF"); // Snowcap white
    bgGrd.addColorStop(1, "#EBF1EA"); // Terrain pale green
    ctx.fillStyle = bgGrd;
    ctx.fillRect(0, 0, 860, 540);

    // 5. Stylized Mountains (Colorado Theme)
    ctx.fillStyle = 'rgba(11, 79, 139, 0.12)';
    ctx.beginPath();
    ctx.moveTo(0, 540); ctx.lineTo(0, 350); ctx.lineTo(120, 260); ctx.lineTo(250, 330);
    ctx.lineTo(400, 210); ctx.lineTo(550, 350); ctx.lineTo(700, 180); ctx.lineTo(860, 300); ctx.lineTo(860, 540);
    ctx.fill();

    ctx.fillStyle = 'rgba(20, 110, 80, 0.08)';
    ctx.beginPath();
    ctx.moveTo(0, 540); ctx.lineTo(0, 420); ctx.lineTo(180, 310); ctx.lineTo(350, 400);
    ctx.lineTo(520, 280); ctx.lineTo(680, 410); ctx.lineTo(860, 360); ctx.lineTo(860, 540);
    ctx.fill();

    // 6. Guilloche/Security Waves overlay
    ctx.lineWidth = 0.5;
    for (let j = 0; j < 5; j++) {
        ctx.beginPath();
        ctx.strokeStyle = `rgba(50, 120, 180, ${0.4 - j * 0.06})`;
        for(let x = 0; x <= 860; x += 4) {
            let y = 300 + j * 35 + Math.sin((x + j*20) * 0.03) * 20 + Math.cos(x * 0.015) * 15;
            if (x === 0) ctx.moveTo(x, y);
            else ctx.lineTo(x, y);
        }
        ctx.stroke();
    }

    // 7. Top Header Ribbon Decor
    ctx.beginPath();
    ctx.moveTo(0, 100);
    ctx.bezierCurveTo(300, 120, 500, 60, 860, 115);
    ctx.lineTo(860, 0); ctx.lineTo(0, 0); ctx.closePath();
    const topGrd = ctx.createLinearGradient(0, 0, 860, 0);
    topGrd.addColorStop(0, 'rgba(10, 70, 140, 0.1)');
    topGrd.addColorStop(1, 'rgba(10, 120, 60, 0.1)');
    ctx.fillStyle = topGrd;
    ctx.fill();

    // 8. Header Texts
    ctx.font = '700 52px Oswald, sans-serif';
    ctx.fillStyle = '#0F3C80';
    ctx.textAlign = 'center';
    ctx.fillText('COLORADO', 430, 60);

    ctx.font = '700 18px Oswald, sans-serif';
    ctx.fillStyle = '#1B5B90';
    ctx.fillText('USA', 430, 85);
    ctx.fillText('DRIVER LICENSE', 430, 105);

    // 9. Colorado Flag Graphic
    ctx.textAlign = 'left';
    function drawCOFlag(cx, cy, w, h) {
        ctx.save();
        ctx.translate(cx, cy);
        
        ctx.strokeStyle = 'rgba(0,0,0,0.1)'; ctx.lineWidth = 1; ctx.strokeRect(0, 0, w, h);
        ctx.fillStyle = '#002868'; ctx.fillRect(0, 0, w, h/3);
        ctx.fillStyle = '#FFFFFF'; ctx.fillRect(0, h/3, w, h/3);
        ctx.fillStyle = '#002868'; ctx.fillRect(0, 2*h/3, w, h/3);

        const rRad = h * 0.35;
        ctx.fillStyle = '#BF0A30';
        ctx.beginPath();
        ctx.arc(w/2 - 2, h/2, rRad, -Math.PI/4, Math.PI/4, true); 
        ctx.arc(w/2 - 2, h/2, rRad*0.6, Math.PI/4, -Math.PI/4, false);
        ctx.closePath();
        ctx.fill();

        ctx.fillStyle = '#FFD300';
        ctx.beginPath();
        ctx.arc(w/2 - 2, h/2, rRad*0.6, 0, Math.PI*2);
        ctx.fill();
        ctx.restore();
    }
    drawCOFlag(750, 25, 80, 50);

    // 10. REAL ID Star Graphic
    function drawRealIDStar(cx, cy, r) {
        ctx.save();
        ctx.translate(cx, cy);
        ctx.beginPath();
        ctx.arc(0, 0, r, 0, 2*Math.PI);
        ctx.fillStyle = '#D6B055'; 
        ctx.fill();

        ctx.beginPath();
        let spikes = 5, rot = Math.PI / 2 * 3;
        let step = Math.PI / spikes;
        ctx.moveTo(0, -(r * 0.7));
        for(let i=0; i<spikes; i++) {
            ctx.lineTo(Math.cos(rot) * r * 0.7, Math.sin(rot) * r * 0.7); rot += step;
            ctx.lineTo(Math.cos(rot) * r * 0.3, Math.sin(rot) * r * 0.3); rot += step;
        }
        ctx.closePath();
        ctx.fillStyle = '#FFFFFF';
        ctx.fill();
        ctx.restore();
    }
    drawRealIDStar(715, 50, 18);

    // 11. Helper to Draw Cropped Photo
    function drawCropped(img, bx, by, bw, bh, applyFilter = false) {
        if (!img || img.width === 0) return;
        const imgRatio = img.width / img.height;
        const boxRatio = bw / bh;
        let sx, sy, sw, sh;

        if (imgRatio > boxRatio) {
            sh = img.height; sw = img.height * boxRatio;
            sx = (img.width - sw) / 2; sy = 0;
        } else {
            sw = img.width; sh = img.width / boxRatio;
            sx = 0; sy = (img.height - sh) / 2;
        }

        ctx.save();
        makeRoundRect(ctx, bx, by, bw, bh, 15);
        ctx.clip();
        if (applyFilter && ctx.filter !== undefined) {
            ctx.filter = 'grayscale(100%) opacity(35%) contrast(1.2)';
        } else if (applyFilter) {
            ctx.globalAlpha = 0.35;
        }
        ctx.drawImage(img, sx, sy, sw, sh, bx, by, bw, bh);
        ctx.restore();
        
        ctx.strokeStyle = 'rgba(0,0,0,0.1)';
        ctx.stroke();
    }

    // 12. Draw Photos
    drawCropped(originalImg, 30, 140, 195, 255); // Main Profile
    drawCropped(originalImg, 690, 310, 145, 190, true); // Ghost Profile

    // 13. Data Fields Typography System
    function drawField(label, value, x, y, opts = {}) {
        const lblCol = opts.labelColor || '#BF0000';
        const valCol = opts.valueColor || '#000000';
        const valFont = opts.valueFont || '700 16px Roboto, sans-serif';
        const lblFont = opts.labelFont || '600 11px Roboto, sans-serif';
        const maxWidth = opts.maxWidth || 250;
        
        ctx.font = lblFont; ctx.fillStyle = lblCol;
        ctx.fillText(label, x, y);
        
        ctx.font = valFont; ctx.fillStyle = valCol;
        ctx.fillText(value, x, y + 20, maxWidth);
    }

    // Standard Layout Details
    drawField('4a ISS', '07/15/2021', 250, 150, { labelColor: '#1A5B80'});
    drawField('4d DL No.', licenseNumber, 360, 150, { labelColor: '#1A5B80'});
    drawField('8 DOB', dob, 550, 150, { labelColor: '#BF0000', valueColor: '#BF0000', valueFont: '900 18px Roboto' });
    drawField('4b EXP', expDate, 700, 150, { labelColor: '#BF0000', valueColor: '#BF0000', valueFont: '900 18px Roboto' });

    drawField('1 LAST', lastName, 250, 205, { labelColor: '#1A5B80', valueFont: '700 24px Roboto, sans-serif', maxWidth: 420 });
    drawField('2 FIRST', firstName, 250, 260, { labelColor: '#1A5B80', valueFont: '700 24px Roboto, sans-serif', maxWidth: 420 });

    let addrLines = address.split(/\\n|\n/);
    if (addrLines.length === 1 && address.includes(',')) {
        let idx = address.indexOf(',');
        addrLines = [address.substring(0, idx), address.substring(idx+1).trim()];
    }
    
    drawField('8 ADDRESS', addrLines[0], 250, 315, { labelColor: '#1A5B80', valueFont: '700 18px Roboto, sans-serif', maxWidth: 420 });
    if(addrLines[1]) {
        ctx.font = '700 18px Roboto, sans-serif';
        ctx.fillStyle = '#000000';
        ctx.fillText(addrLines[1].trim(), 250, 355, 420);
    }

    const row5Y = 410;
    drawField('15 SEX', sex, 250, row5Y, { labelColor: '#1A5B80', maxWidth: 60 });
    drawField('16 HGT', height, 330, row5Y, { labelColor: '#1A5B80', maxWidth: 60 });
    drawField('17 WGT', weight, 410, row5Y, { labelColor: '#1A5B80', maxWidth: 60 });
    drawField('18 EYES', eyes, 490, row5Y, { labelColor: '#1A5B80', maxWidth: 60 });
    drawField('19 HAIR', hair, 570, row5Y, { labelColor: '#1A5B80', maxWidth: 60 });

    const row6Y = 470;
    drawField('9 ISSUED', 'DENVER', 250, row6Y, { labelColor: '#1A5B80' });
    drawField('12 CLASS', 'R', 370, row6Y, { labelColor: '#1A5B80' });
    drawField('END', 'NONE', 460, row6Y, { labelColor: '#1A5B80' });
    drawField('RESTR', 'A', 550, row6Y, { labelColor: '#1A5B80' });

    // 14. Signature Overlay
    ctx.font = '700 36px "Dancing Script", cursive';
    ctx.fillStyle = '#0B1C56'; // Dark Pen Ink
    ctx.textAlign = 'center';
    ctx.fillText(`${firstName} ${lastName}`, 127, 435, 200);

    // 15. Base Boundary Edge
    ctx.restore(); // Restore from clipping area
    ctx.strokeStyle = '#CCCCCC';
    ctx.lineWidth = 1;
    makeRoundRect(ctx, 0.5, 0.5, 859, 539, 20);
    ctx.stroke();

    return canvas;
}