// ============================================
// UTILS - Hilfsfunktionen
// ============================================

// ========== BENACHRICHTIGUNGEN ==========
function showNotification(message, type = 'success') {
    const existing = document.querySelector('.notification');
    if (existing) existing.remove();

    const notification = document.createElement('div');
    notification.className = `notification ${type}`;
    notification.textContent = message;
    document.body.appendChild(notification);

    setTimeout(() => {
        notification.classList.add('show');
    }, 10);

    setTimeout(() => {
        notification.classList.remove('show');
        setTimeout(() => notification.remove(), 300);
    }, 2500);
}

// ========== HTML ESCAPING ==========
function escapeHtml(text) {
    const div = document.createElement('div');
    div.textContent = text;
    return div.innerHTML;
}

// ========== SVG ZU CANVAS ==========
window.svgToCanvas = async function(svg, scale) {
    var parser = new DOMParser();
    var svgDoc = parser.parseFromString(svg, 'image/svg+xml');
    var svgEl = svgDoc.documentElement;
    var svgWidth = parseFloat(svgEl.getAttribute('width')) || parseFloat(svgEl.getAttribute('viewBox')?.split(' ')[2]) || 64;
    var svgHeight = parseFloat(svgEl.getAttribute('height')) || parseFloat(svgEl.getAttribute('viewBox')?.split(' ')[3]) || 64;

    if (!scale) scale = 2;
    var canvasWidth = Math.round(svgWidth * scale);
    var canvasHeight = Math.round(svgHeight * scale);

    var canvas = document.createElement('canvas');
    var ctx = canvas.getContext('2d');
    canvas.width = canvasWidth;
    canvas.height = canvasHeight;

    var img = new Image();
    var svgBlob = new Blob([svg], { type: 'image/svg+xml;charset=utf-8' });
    var url = URL.createObjectURL(svgBlob);

    await new Promise(function(resolve, reject) {
        img.onload = resolve;
        img.onerror = reject;
        img.src = url;
    });

    ctx.drawImage(img, 0, 0, canvasWidth, canvasHeight);
    URL.revokeObjectURL(url);

    return canvas;
};