`;
}).join('');
dashboardContent.innerHTML = `
Delivered
${statusCounts['Delivered']}
Out for Delivery
${statusCounts['Out for Delivery']}
In Transit
${statusCounts['In Transit']}
Exception
${statusCounts['Exception']}
${packagesHtml}
`;
lucide.createIcons();
document.getElementById('download-pdf-btn').addEventListener('click', generatePdf);
};
const renderDataConfig = () => {
const configContent = document.getElementById('content-manage-packages');
if (!configContent) return;
const packagesHtml = appData.trackingNumbers.map(num => `
${num}
`).join('');
configContent.innerHTML = `
Add & Manage Packages
${packagesHtml}
`;
attachConfigListeners();
};
// --- EVENT HANDLERS & LOGIC ---
const attachConfigListeners = () => {
document.querySelectorAll('.remove-package-btn').forEach(btn => btn.addEventListener('click', e => {
const numToRemove = e.currentTarget.dataset.num;
appData.trackingNumbers = appData.trackingNumbers.filter(num => num !== numToRemove);
appData.analysisResults = null;
renderDataConfig();
renderDashboard();
}));
document.getElementById('add-package-btn').addEventListener('click', () => {
const input = document.getElementById('new-tracking-number');
if (input.value && !appData.trackingNumbers.includes(input.value)) {
// For this demo, we only add if it exists in our mock DB
if(trackingDB[input.value]) {
appData.trackingNumbers.push(input.value);
appData.analysisResults = null;
renderDataConfig();
renderDashboard();
input.value = '';
} else {
alert('Tracking number not found in our system. Please try a number from the initial list.');
}
} else if (appData.trackingNumbers.includes(input.value)) {
alert('This tracking number is already in the list.');
}
});
};
const generatePdf = () => {
loadingOverlay.style.display = 'flex';
const { jsPDF } = window.jspdf;
document.getElementById('pdf-generated-date').textContent = new Date().toLocaleDateString('en-US');
const pdfHeader = document.getElementById('pdf-header');
pdfHeader.classList.remove('hidden');
const fullContent = document.getElementById('pdf-content-area');
html2canvas(fullContent, { scale: 2, useCORS: true, logging: false, windowWidth: 1200 })
.then(canvas => {
pdfHeader.classList.add('hidden');
const imgData = canvas.toDataURL('image/jpeg', 0.9);
const pdf = new jsPDF({ orientation: 'portrait', unit: 'px', format: 'a4' });
const pdfWidth = pdf.internal.pageSize.getWidth();
const imgProps = pdf.getImageProperties(imgData);
const imgHeight = (imgProps.height * pdfWidth) / imgProps.width;
pdf.addImage(imgData, 'JPEG', 0, 0, pdfWidth, imgHeight);
pdf.save('Package-Tracking-Summary.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 switchTab = (tabIndex) => {
activeTabIndex = tabIndex;
document.querySelectorAll('.tab-btn').forEach((btn, i) => btn.classList.toggle('active', i === tabIndex));
document.querySelectorAll('.tab-content').forEach((content, i) => content.classList.toggle('hidden', i !== tabIndex));
updateNavButtons();
};
const updateNavButtons = () => {
prevTabBtn.disabled = activeTabIndex === 0;
nextTabBtn.disabled = activeTabIndex === tabIdentifiers.length - 1;
};
const initializeUI = () => {
const tabs = [
{ name: 'Tracking Dashboard', id: 'tracking-dashboard' },
{ name: 'Manage Packages', id: 'manage-packages' }
];
tabIdentifiers = tabs.map(t => t.id);
tabsContainer.innerHTML = tabs.map(tab => `
`).join('');
mainContent.innerHTML = tabs.map(tab => `
`).join('');
tabs.forEach((tab, index) => {
document.getElementById(`tab-${tab.id}`).addEventListener('click', () => switchTab(index));
});
renderDashboard();
renderDataConfig();
switchTab(0);
};
initializeUI();
prevTabBtn.addEventListener('click', () => { if (activeTabIndex > 0) switchTab(activeTabIndex - 1); });
nextTabBtn.addEventListener('click', () => { if (activeTabIndex < tabIdentifiers.length - 1) switchTab(activeTabIndex + 1); });
});
