REFERENCE
${generatorState.reference}
`;
document.getElementById('download-pdf-btn').disabled = false;
}
const attachGeneratorListeners = () => {
document.getElementById('generate-btn').addEventListener('click', () => {
generatorState.payeeName = document.getElementById('payee-name').value;
generatorState.amount = parseFloat(document.getElementById('amount').value) || 0;
generatorState.reference = document.getElementById('reference').value;
generateQRCode();
});
document.getElementById('download-pdf-btn').addEventListener('click', generatePdf);
};
const renderDataConfig = () => {
const configContent = document.getElementById('content-config');
if (!configContent) return;
configContent.innerHTML = `
`;
document.getElementById('apply-settings-btn').addEventListener('click', () => {
appData.defaultPayee = document.getElementById('default-payee').value;
appData.defaultCurrency = document.getElementById('default-currency').value;
// Update current state with new defaults if they are unchanged
if (document.getElementById('payee-name') && document.getElementById('payee-name').value === generatorState.payeeName) {
generatorState.payeeName = appData.defaultPayee;
}
alert('Default settings updated!');
renderGenerator();
});
};
const generatePdf = () => {
loadingOverlay.style.display = 'flex';
const { jsPDF } = window.jspdf;
const pdfContent = document.getElementById('pdf-content-area');
const pdfHeader = document.getElementById('pdf-header');
document.getElementById('pdf-generated-date').textContent = new Date().toLocaleDateString('en-US');
pdfHeader.classList.remove('hidden');
html2canvas(pdfContent, { scale: 2, useCORS: true, logging: false })
.then(canvas => {
pdfHeader.classList.add('hidden');
const imgData = canvas.toDataURL('image/jpeg', 0.95);
const pdf = new jsPDF({ orientation: 'portrait', unit: 'px', format: 'a4' });
const pdfWidth = pdf.internal.pageSize.getWidth();
const pageMargin = 60;
const contentWidth = pdfWidth - (pageMargin * 2);
const imgProps = pdf.getImageProperties(imgData);
const imgHeight = (imgProps.height * contentWidth) / imgProps.width;
pdf.addImage(imgData, 'JPEG', pageMargin, pageMargin, contentWidth, imgHeight);
pdf.save('QRCode-Payment-Slip.pdf');
loadingOverlay.style.display = 'none';
}).catch(err => {
console.error("PDF generation failed:", err);
pdfHeader.classList.add('hidden');
loadingOverlay.style.display = 'none';
alert('An error occurred generating the PDF.');
});
};
// --- TAB NAVIGATION & INITIALIZATION ---
const initializeTabs = () => {
const tabsContainer = document.getElementById('tabs-container');
const prevTabBtn = document.getElementById('prev-tab-btn');
const nextTabBtn = document.getElementById('next-tab-btn');
let activeTabIndex = 0;
const tabs = [
{ name: 'QR Generator', id: 'generator' },
{ name: 'Configuration', id: 'config' }
];
tabsContainer.innerHTML = tabs.map(tab => `
`).join('');
mainContent.innerHTML = tabs.map(tab => `
`).join('');
const tabButtons = tabsContainer.querySelectorAll('.tab-btn');
const tabContents = mainContent.querySelectorAll('.tab-content');
const switchTab = (index) => {
activeTabIndex = index;
tabButtons.forEach((btn, i) => btn.classList.toggle('active', i === index));
tabContents.forEach((content, i) => content.classList.toggle('hidden', i !== index));
prevTabBtn.disabled = activeTabIndex === 0;
nextTabBtn.disabled = activeTabIndex === tabs.length - 1;
};
tabButtons.forEach((btn, index) => {
btn.addEventListener('click', () => switchTab(index));
});
prevTabBtn.addEventListener('click', () => { if (activeTabIndex > 0) switchTab(activeTabIndex - 1); });
nextTabBtn.addEventListener('click', () => { if (activeTabIndex < tabs.length - 1) switchTab(activeTabIndex + 1); });
switchTab(0);
renderGenerator();
renderDataConfig();
};
initializeTabs();
});
