`;
document.getElementById('calculator-form').addEventListener('submit', handleCalculation);
};
const renderConfig = () => {
const configContent = document.getElementById('content-config');
if (!configContent) return;
const tiersHtml = appData.tiers.map((tier, index) => `
`).join('');
configContent.innerHTML = `
`;
document.getElementById('config-form').addEventListener('submit', handleConfigUpdate);
};
const handleCalculation = (e) => {
e.preventDefault();
const spend = parseFloat(document.getElementById('total-spending').value);
const purchases = parseInt(document.getElementById('total-purchases').value);
const sinceDate = new Date(document.getElementById('customer-since').value);
const customerName = document.getElementById('customer-name').value;
if (isNaN(spend) || isNaN(purchases) || !sinceDate) {
alert('Please fill in all fields with valid numbers and a date.');
return;
}
const today = new Date();
const loyaltyYears = (today - sinceDate) / (1000 * 60 * 60 * 24 * 365.25);
let assignedTier = { name: 'Standard', discount: 0 };
// Tiers are pre-sorted from highest to lowest in appData
for (const tier of appData.tiers) {
if (spend >= tier.minSpend && purchases >= tier.minPurchases && loyaltyYears >= tier.minLoyaltyYears) {
assignedTier = tier;
break; // Stop at the first (highest) tier they qualify for
}
}
renderResults({ customerName, spend, purchases, loyaltyYears, assignedTier });
};
const renderResults = (data) => {
const resultsContainer = document.getElementById('results-container');
resultsContainer.innerHTML = `
Status for ${data.customerName}
${data.assignedTier.name}
${data.assignedTier.discount}%
Discount Level
Customer Metrics
-
Lifetime Spending
$${data.spend.toLocaleString()}
-
Total Purchases
${data.purchases}
-
Customer Loyalty
${data.loyaltyYears.toFixed(1)} Years
`;
lucide.createIcons();
document.getElementById('download-pdf-btn').addEventListener('click', () => generatePdf(data.customerName));
};
const handleConfigUpdate = (e) => {
e.preventDefault();
const newTiers = [];
const form = document.getElementById('config-form');
const tierCount = form.querySelectorAll('input[data-field="name"]').length;
for (let i = 0; i < tierCount; i++) {
const tier = {
name: form.querySelector(`input[data-index="${i}"][data-field="name"]`).value,
minSpend: parseFloat(form.querySelector(`input[data-index="${i}"][data-field="minSpend"]`).value),
minPurchases: parseInt(form.querySelector(`input[data-index="${i}"][data-field="minPurchases"]`).value),
minLoyaltyYears: parseFloat(form.querySelector(`input[data-index="${i}"][data-field="minLoyaltyYears"]`).value),
discount: parseFloat(form.querySelector(`input[data-index="${i}"][data-field="discount"]`).value)
};
newTiers.push(tier);
}
// Sort by highest requirement to lowest for correct calculation logic
appData.tiers = newTiers.sort((a, b) => b.minSpend - a.minSpend);
const statusEl = document.getElementById('config-status');
statusEl.textContent = 'Configuration saved!';
setTimeout(() => { statusEl.textContent = ''; }, 3000);
};
const generatePdf = (customerName) => {
loadingOverlay.style.display = 'flex';
const { jsPDF } = window.jspdf;
const pdfContent = document.getElementById('pdf-content-area');
const pdfHeader = document.getElementById('pdf-header');
document.getElementById('pdf-customer-name').textContent = customerName;
document.getElementById('pdf-generated-date').textContent = new Date().toLocaleDateString('en-US');
pdfHeader.classList.remove('hidden');
html2canvas(pdfContent, { scale: 2, useCORS: true })
.then(canvas => {
pdfHeader.classList.add('hidden');
const imgData = canvas.toDataURL('image/png');
const pdf = new jsPDF({ orientation: 'portrait', unit: 'px', format: [canvas.width, canvas.height] });
pdf.addImage(imgData, 'PNG', 0, 0, canvas.width, canvas.height);
pdf.save(`VIP-Report-${customerName.replace(/\s/g, '_')}.pdf`);
loadingOverlay.style.display = 'none';
}).catch(err => {
console.error("PDF generation failed:", err);
pdfHeader.classList.add('hidden');
loadingOverlay.style.display = 'none';
alert('An error occurred generating the PDF.');
});
};
// --- TAB NAVIGATION & INITIALIZATION ---
const switchTab = (tabIndex) => {
activeTabIndex = tabIndex;
document.querySelectorAll('.tab-btn').forEach((btn, i) => btn.classList.toggle('active', i === tabIndex));
document.querySelectorAll('.tab-content').forEach((content, i) => content.classList.toggle('hidden', i !== tabIndex));
updateNavButtons();
};
const updateNavButtons = () => {
prevTabBtn.disabled = activeTabIndex === 0;
nextTabBtn.disabled = activeTabIndex === tabIdentifiers.length - 1;
};
const initializeUI = () => {
const tabs = [
{ name: 'Discount Calculator', id: 'calculator' },
{ name: 'Configure Tiers', id: 'config' }
];
tabIdentifiers = tabs.map(t => t.id);
tabsContainer.innerHTML = tabs.map(tab => `
`).join('');
mainContent.innerHTML = tabs.map(tab => `
`).join('');
tabs.forEach((tab, index) => {
document.getElementById(`tab-${tab.id}`).addEventListener('click', () => switchTab(index));
});
renderCalculator();
renderConfig();
switchTab(0);
};
initializeUI();
lucide.createIcons();
prevTabBtn.addEventListener('click', () => { if (activeTabIndex > 0) switchTab(activeTabIndex - 1); });
nextTabBtn.addEventListener('click', () => { if (activeTabIndex < tabIdentifiers.length - 1) switchTab(activeTabIndex + 1); });
});
