Estimated Net Profit:
$${kpis.netProfit.toLocaleString()}
Return on Investment (ROI):
${kpis.roi.toFixed(2)}%
`;
}
function updateChart(costs) {
const ctx = document.getElementById('roi-chart').getContext('2d');
const data = {
labels: Object.keys(costs),
datasets: [{ data: Object.values(costs), backgroundColor: ['#78716c', '#a16207', '#ca8a04', '#eab308', '#facc15'] }]
};
if (roiChart) {
roiChart.data = data;
roiChart.update();
} else {
roiChart = new Chart(ctx, { type: 'pie', data, options: { responsive: true, maintainAspectRatio: false, plugins: { legend: { position: 'bottom' } } } });
}
}
function updateTabs() {
tabs.forEach((tab, i) => tab.classList.toggle('active', i === currentTabIndex));
tabContents.forEach((c, i) => c.classList.toggle('active', i === currentTabIndex));
prevBtn.disabled = currentTabIndex === 0;
nextBtn.disabled = currentTabIndex === tabs.length - 1;
prevBtn.classList.toggle('opacity-50', currentTabIndex === 0);
nextBtn.classList.toggle('opacity-50', currentTabIndex === tabs.length - 1);
}
function setupEventListeners() {
tabsContainer.addEventListener('click', (e) => { if (e.target.classList.contains('tab')) { currentTabIndex = parseInt(e.target.dataset.index); updateTabs(); } });
prevBtn.addEventListener('click', () => { if (currentTabIndex > 0) { currentTabIndex--; updateTabs(); } });
nextBtn.addEventListener('click', () => { if (currentTabIndex < tabs.length - 1) { currentTabIndex++; updateTabs(); } });
tabContentsContainer.addEventListener('input', (e) => {
if (e.target.tagName === 'INPUT') {
const category = e.target.dataset.category;
const key = e.target.dataset.key;
if (appData[category] && appData[category][key]) {
appData[category][key].value = e.target.value;
calculateAll();
}
}
});
document.getElementById('pdf-download-btn').addEventListener('click', generatePdf);
}
function generatePdf() {
const { jsPDF } = jspdf;
const pdf = new jsPDF();
const dashboardContent = document.getElementById('Dashboard-content');
pdf.setFontSize(22);
pdf.text("Historic Restoration ROI Analysis", 105, 20, { align: 'center' });
html2canvas(dashboardContent, { scale: 2 }).then(canvas => {
const imgData = canvas.toDataURL('image/png');
const { width, height } = pdf.internal.pageSize;
const imgHeight = canvas.height * width / canvas.width;
pdf.addImage(imgData, 'PNG', 15, 30, width - 30, imgHeight * ((width - 30) / width));
pdf.save('historic-roi-analysis.pdf');
});
}
initialize();
});
