`;
// Apply scaling to the cube
const cube = document.getElementById('result-cube');
cube.style.transform = `translateZ(-100px) rotateY(330deg) rotateX(30deg) scale3d(${scaleW}, ${scaleH}, ${scaleL})`;
document.getElementById('download-pdf-btn').addEventListener('click', generatePdf);
lucide.createIcons();
};
const renderDataConfig = () => {
const configContent = document.getElementById('content-config');
if (!configContent) return;
configContent.innerHTML = `
${createConfigCard('Products', 'products-json', appData.products)}
${createConfigCard('Standard Box Sizes', 'boxes-json', appData.boxSizes)}
`;
document.getElementById('save-config-btn').addEventListener('click', () => {
try {
appData.products = JSON.parse(document.getElementById('products-json').value);
appData.boxSizes = JSON.parse(document.getElementById('boxes-json').value).map(box => ({...box, volume: box.l * box.w * box.h}));
alert('Configuration saved successfully!');
renderEstimator(); // Re-render to update options
} catch(e) {
alert('Error: Invalid JSON format. Please check your data.');
}
});
};
const createConfigCard = (title, id, data) => `
${title}
`;
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 = 40;
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('Package-Estimation-Report.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: 'Package Estimator', id: 'estimator', renderer: renderEstimator },
{ name: 'Data Configuration', id: 'config', renderer: renderDataConfig }
];
tabsContainer.innerHTML = tabs.map(t => `
`).join('');
mainContent.innerHTML = tabs.map(t => `
`).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); });
tabs.forEach(t => t.renderer());
switchTab(0);
};
initializeTabs();
});
