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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="SplitEase - Simplify group expenses with smart bill splitting">
<meta name="theme-color" content="#1a2a3a">
<title>SplitEase - Smart Expense Splitter</title>
<!-- PWA Manifest -->
<link rel="manifest" href="manifest.json">
<!-- Icons -->
<link rel="icon" type="image/png" sizes="192x192" href="icon-192.png">
<link rel="apple-touch-icon" href="icon-192.png">
<!-- Tailwind CSS -->
<script src="https://cdn.tailwindcss.com"></script>
<!-- Font Awesome -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
<!-- Google Fonts - Poppins -->
<link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap" rel="stylesheet">
<style>
* {
font-family: 'Poppins', sans-serif;
}
body {
background: linear-gradient(135deg, #1a2a3a 0%, #1f3240 50%, #2a3a4a 100%);
min-height: 100vh;
color: #ecf0f1;
}
.glass-card {
backdrop-filter: blur(16px);
background: rgba(255, 255, 255, 0.05);
border: 1px solid rgba(255, 255, 255, 0.1);
border-radius: 12px;
box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
.glass-input {
backdrop-filter: blur(8px);
background: rgba(255, 255, 255, 0.1);
border: 1px solid rgba(255, 255, 255, 0.2);
color: #ecf0f1;
border-radius: 8px;
padding: 10px 15px;
width: 100%;
transition: all 0.3s ease;
}
.glass-input:focus {
outline: none;
border-color: rgba(255, 255, 255, 0.4);
background: rgba(255, 255, 255, 0.15);
}
.glass-input::placeholder {
color: rgba(236, 240, 241, 0.5);
}
.glass-button {
backdrop-filter: blur(8px);
background: rgba(79, 70, 229, 0.8);
border: 1px solid rgba(79, 70, 229, 0.9);
color: white;
padding: 10px 20px;
border-radius: 8px;
transition: all 0.3s ease;
cursor: pointer;
font-weight: 600;
}
.glass-button:hover {
background: rgba(79, 70, 229, 1);
transform: translateY(-2px);
box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}
.glass-button:disabled {
opacity: 0.5;
cursor: not-allowed;
transform: none;
}
.btn-destructive {
background: rgba(239, 68, 68, 0.8);
border-color: rgba(239, 68, 68, 0.9);
}
.btn-destructive:hover {
background: rgba(239, 68, 68, 1);
box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}
.btn-ghost {
background: rgba(255, 255, 255, 0.05);
border-color: rgba(255, 255, 255, 0.1);
}
.btn-ghost:hover {
background: rgba(255, 255, 255, 0.1);
}
.list-item {
backdrop-filter: blur(8px);
background: rgba(255, 255, 255, 0.05);
border: 1px solid rgba(255, 255, 255, 0.1);
border-radius: 8px;
padding: 16px;
margin-bottom: 12px;
transition: all 0.3s ease;
}
.list-item:hover {
background: rgba(255, 255, 255, 0.08);
transform: translateX(4px);
}
.avatar {
width: 40px;
height: 40px;
border-radius: 50%;
background: rgba(79, 70, 229, 0.2);
border: 2px solid rgba(79, 70, 229, 0.4);
display: flex;
align-items: center;
justify-content: center;
font-weight: 600;
color: #818cf8;
}
.balance-positive {
background: rgba(34, 197, 94, 0.1);
border-color: rgba(34, 197, 94, 0.3);
}
.balance-negative {
background: rgba(239, 68, 68, 0.1);
border-color: rgba(239, 68, 68, 0.3);
}
.modal-overlay {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.7);
display: flex;
align-items: center;
justify-content: center;
z-index: 1000;
opacity: 0;
visibility: hidden;
transition: all 0.3s ease;
}
.modal-overlay.active {
opacity: 1;
visibility: visible;
}
.modal-content {
backdrop-filter: blur(20px);
background: rgba(44, 62, 80, 0.95);
border: 1px solid rgba(255, 255, 255, 0.2);
border-radius: 12px;
padding: 32px;
max-width: 500px;
width: 90%;
transform: scale(0.9);
transition: transform 0.3s ease;
}
.modal-overlay.active .modal-content {
transform: scale(1);
}
.skeleton {
background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
background-size: 200% 100%;
animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
0% { background-position: -200% 0; }
100% { background-position: 200% 0; }
}
.fade-in {
animation: fadeIn 0.5s ease-out;
}
@keyframes fadeIn {
from {
opacity: 0;
transform: translateY(-10px);
}
to {
opacity: 1;
transform: translateY(0);
}
}
.hidden {
display: none !important;
}
select.glass-input {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ecf0f1' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
background-repeat: no-repeat;
background-position: right 12px center;
padding-right: 36px;
appearance: none;
}
select.glass-input option {
background: #2a3a4a;
color: #ecf0f1;
}
.toast {
position: fixed;
bottom: 24px;
left: 50%;
transform: translateX(-50%) translateY(120px);
background: rgba(26, 42, 58, 0.97);
border: 1px solid rgba(255, 255, 255, 0.15);
color: #ecf0f1;
padding: 12px 24px;
border-radius: 8px;
font-weight: 500;
z-index: 2000;
transition: transform 0.3s ease;
backdrop-filter: blur(16px);
box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
pointer-events: none;
white-space: nowrap;
}
.toast.show {
transform: translateX(-50%) translateY(0);
}
.toast.success { border-color: rgba(34, 197, 94, 0.5); }
.toast.error { border-color: rgba(239, 68, 68, 0.5); }
.stats-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 10px;
margin-top: 12px;
}
.stat-card {
background: rgba(255, 255, 255, 0.05);
border: 1px solid rgba(255, 255, 255, 0.1);
border-radius: 8px;
padding: 12px 8px;
text-align: center;
}
.category-badge {
display: inline-flex;
align-items: center;
gap: 4px;
padding: 2px 8px;
border-radius: 12px;
font-size: 0.72rem;
background: rgba(79, 70, 229, 0.15);
border: 1px solid rgba(79, 70, 229, 0.25);
color: #a5b4fc;
}
.btn-success {
background: rgba(34, 197, 94, 0.8);
border-color: rgba(34, 197, 94, 0.9);
}
.btn-success:hover {
background: rgba(34, 197, 94, 1);
box-shadow: 0 4px 12px rgba(34, 197, 94, 0.4);
}
</style>
</head>
<body class="p-4 md:p-8">
<div class="container mx-auto max-w-4xl">
<!-- Header -->
<header class="text-center mb-8 relative fade-in">
<h1 class="text-5xl md:text-6xl font-extrabold text-white mb-2 drop-shadow-2xl">
SplitEase
</h1>
<p class="text-xl text-white/80 font-medium">Simplify group expenses</p>
<button id="settingsBtn" class="absolute top-0 right-0 glass-button btn-ghost w-12 h-12 rounded-full p-0">
<i class="fas fa-cog"></i>
</button>
</header>
<!-- Main Content Area -->
<div id="app-content">
<!-- Splits View -->
<div id="splitsView" class="space-y-6 fade-in">
<div class="glass-card p-6">
<h2 class="text-2xl font-bold text-white mb-4">Create New Split</h2>
<div class="flex flex-col sm:flex-row gap-3">
<input type="text" id="newSplitName" class="glass-input flex-1" placeholder="Enter split name (e.g., Weekend Trip)">
<button id="createSplitBtn" class="glass-button">
<i class="fas fa-plus mr-2"></i>Create Split
</button>
</div>
</div>
<div class="glass-card p-6">
<h2 class="text-2xl font-bold text-white mb-4">Your Splits</h2>
<div id="splitsList"></div>
</div>
</div>
<!-- Split Detail View -->
<div id="splitDetailView" class="hidden space-y-6 fade-in">
<!-- Header -->
<div class="glass-card p-6">
<div class="flex items-center justify-between">
<div class="flex items-center gap-4">
<button id="backBtn" class="glass-button btn-ghost w-12 h-12 rounded-full p-0">
<i class="fas fa-arrow-left"></i>
</button>
<div>
<h1 id="splitName" class="text-3xl font-bold text-white"></h1>
<p id="splitDate" class="text-white/50 text-sm"></p>
</div>
</div>
<button id="deleteSplitBtn" class="glass-button btn-destructive rounded-full w-12 h-12 p-0">
<i class="fas fa-trash"></i>
</button>
</div>
<div id="splitStats" class="stats-grid mt-4"></div>
</div>
<!-- Participants -->
<div class="glass-card p-6">
<h2 class="text-2xl font-bold text-white mb-4">Participants</h2>
<div class="flex flex-col sm:flex-row gap-3 mb-6">
<input type="text" id="newParticipantName" class="glass-input flex-1" placeholder="Enter participant name">
<button id="addParticipantBtn" class="glass-button">
<i class="fas fa-user-plus mr-2"></i>Add
</button>
</div>
<div id="participantsList"></div>
</div>
<!-- Expenses -->
<div class="glass-card p-6">
<h2 class="text-2xl font-bold text-white mb-4">Add Expense</h2>
<div class="space-y-4 mb-6">
<input type="text" id="expenseDescription" class="glass-input" placeholder="Description (e.g., Dinner, Hotel)">
<div class="flex gap-3">
<input type="number" id="expenseAmount" class="glass-input flex-1" placeholder="Amount" step="0.01" min="0">
<select id="expenseCategory" class="glass-input w-48">
<option value="other">📦 Other</option>
<option value="food">🍽️ Food & Drinks</option>
<option value="transport">🚗 Transport</option>
<option value="accommodation">🏠 Accommodation</option>
<option value="entertainment">🎉 Entertainment</option>
<option value="shopping">🛍️ Shopping</option>
<option value="utilities">💡 Utilities</option>
<option value="health">🏥 Health</option>
</select>
</div>
<select id="paidBy" class="glass-input">
<option value="">Select who paid</option>
</select>
<div>
<label class="block text-white/80 mb-2">Split Type</label>
<div class="flex gap-4">
<label class="flex items-center gap-2 cursor-pointer">
<input type="radio" name="splitType" value="equal" checked class="w-4 h-4">
<span class="text-white">Equal</span>
</label>
<label class="flex items-center gap-2 cursor-pointer">
<input type="radio" name="splitType" value="unequal" class="w-4 h-4">
<span class="text-white">Unequal</span>
</label>
<label class="flex items-center gap-2 cursor-pointer">
<input type="radio" name="splitType" value="percentage" class="w-4 h-4">
<span class="text-white">Percentage</span>
</label>
</div>
</div>
<div id="equalSplitSection">
<label class="block text-white/80 mb-2">Split Among</label>
<div id="splitAmongCheckboxes" class="space-y-2"></div>
</div>
<div id="unequalSplitSection" class="hidden">
<label class="block text-white/80 mb-2">Unequal Shares</label>
<div id="unequalSharesInputs" class="space-y-2"></div>
</div>
<div id="percentageSplitSection" class="hidden">
<label class="block text-white/80 mb-2">Percentage Shares</label>
<div id="percentageSharesInputs" class="space-y-2"></div>
<p id="percentageTotal" class="text-white/50 text-sm mt-2">Total: 0%</p>
</div>
</div>
<button id="addExpenseBtn" class="glass-button w-full">
<i class="fas fa-plus mr-2"></i>Add Expense
</button>
<div class="mt-8">
<h3 class="text-xl font-semibold text-white mb-4">Recent Expenses</h3>
<div id="expensesList"></div>
</div>
</div>
<!-- Balances -->
<div class="glass-card p-6">
<div class="flex items-center justify-between mb-4">
<h2 class="text-2xl font-bold text-white">Balances</h2>
<button id="exportBtn" class="glass-button btn-ghost text-sm">
<i class="fas fa-download mr-2"></i>Export
</button>
</div>
<div id="balancesList"></div>
</div>
</div>
<!-- Settings View -->
<div id="settingsView" class="hidden space-y-6 fade-in">
<div class="glass-card p-6">
<div class="flex items-center gap-4 mb-6">
<button id="backFromSettingsBtn" class="glass-button btn-ghost w-12 h-12 rounded-full p-0">
<i class="fas fa-arrow-left"></i>
</button>
<h1 class="text-3xl font-bold text-white">Settings</h1>
</div>
<div class="space-y-6">
<div>
<label for="currencySelect" class="block text-white/80 mb-2">Currency</label>
<select id="currencySelect" class="glass-input">
<option value="$">USD ($)</option>
<option value="€">EUR (€)</option>
<option value="£">GBP (£)</option>
<option value="₹">INR (₹)</option>
<option value="¥">JPY (¥)</option>
<option value="CA$">CAD (CA$)</option>
<option value="AU$">AUD (AU$)</option>
<option value="CHF">CHF (CHF)</option>
<option value="S$">SGD (S$)</option>
<option value="HK$">HKD (HK$)</option>
</select>
<p class="text-white/50 text-sm mt-2">This will be used for all expense amounts and balances</p>
</div>
<div class="flex gap-3">
<button id="saveSettingsBtn" class="glass-button flex-1">
<i class="fas fa-save mr-2"></i>Save Changes
</button>
<button id="cancelSettingsBtn" class="glass-button btn-ghost">
Cancel
</button>
</div>
</div>
</div>
</div>
</div>
</div>
<!-- Toast Notification -->
<div id="toast" class="toast"></div>
<!-- Confirmation Modal -->
<div id="confirmModal" class="modal-overlay">
<div class="modal-content">
<p id="confirmMessage" class="text-xl text-white mb-6 text-center"></p>
<div class="flex gap-3 justify-center">
<button id="confirmYes" class="glass-button btn-destructive px-8">Yes</button>
<button id="confirmNo" class="glass-button btn-ghost px-8">No</button>
</div>
</div>
</div>
<script>
// Data storage using localStorage
class Storage {
constructor() {
this.loadData();
}
loadData() {
this.splits = JSON.parse(localStorage.getItem('splits') || '[]');
this.participants = JSON.parse(localStorage.getItem('participants') || '[]');
this.expenses = JSON.parse(localStorage.getItem('expenses') || '[]');
this.settings = JSON.parse(localStorage.getItem('settings') || '{"currency":"$"}');
}
saveData() {
localStorage.setItem('splits', JSON.stringify(this.splits));
localStorage.setItem('participants', JSON.stringify(this.participants));
localStorage.setItem('expenses', JSON.stringify(this.expenses));
localStorage.setItem('settings', JSON.stringify(this.settings));
}
// Splits
getSplits() {
return this.splits.sort((a, b) => new Date(b.createdAt) - new Date(a.createdAt));
}
createSplit(name) {
const split = {
id: Date.now().toString(),
name,
createdAt: new Date().toISOString()
};
this.splits.push(split);
this.saveData();
return split;
}
deleteSplit(id) {
this.splits = this.splits.filter(s => s.id !== id);
this.participants = this.participants.filter(p => p.splitId !== id);
this.expenses = this.expenses.filter(e => e.splitId !== id);
this.saveData();
}
// Participants
getParticipants(splitId) {
return this.participants.filter(p => p.splitId === splitId);
}
createParticipant(splitId, name) {
const participant = {
id: Date.now().toString() + Math.random(),
splitId,
name,
createdAt: new Date().toISOString()
};
this.participants.push(participant);
this.saveData();
return participant;
}
deleteParticipant(id) {
this.participants = this.participants.filter(p => p.id !== id);
this.expenses = this.expenses.filter(e =>
e.paidBy !== id && !e.splitAmong.includes(id)
);
this.saveData();
}
// Expenses
getExpenses(splitId) {
return this.expenses
.filter(e => e.splitId === splitId)
.sort((a, b) => new Date(b.createdAt) - new Date(a.createdAt));
}
createExpense(data) {
const expense = {
id: Date.now().toString() + Math.random(),
...data,
createdAt: new Date().toISOString()
};
this.expenses.push(expense);
this.saveData();
return expense;
}
deleteExpense(id) {
this.expenses = this.expenses.filter(e => e.id !== id);
this.saveData();
}
// Balances
calculateBalances(splitId) {
const participants = this.getParticipants(splitId);
const expenses = this.getExpenses(splitId);
const balanceMap = new Map();
participants.forEach(p => balanceMap.set(p.id, 0));
expenses.forEach(expense => {
const current = balanceMap.get(expense.paidBy) || 0;
balanceMap.set(expense.paidBy, current + expense.amount);
if (expense.splitType === 'equal') {
const share = expense.amount / expense.splitAmong.length;
expense.splitAmong.forEach(id => {
const bal = balanceMap.get(id) || 0;
balanceMap.set(id, bal - share);
});
} else {
const shares = JSON.parse(expense.shares || '{}');
expense.splitAmong.forEach(id => {
const share = shares[id] || 0;
const bal = balanceMap.get(id) || 0;
balanceMap.set(id, bal - share);
});
}
});
return participants.map(p => ({
participantId: p.id,
participantName: p.name,
netBalance: balanceMap.get(p.id) || 0
}));
}
calculateSettlements(splitId) {
const balances = this.calculateBalances(splitId);
const creditors = balances
.filter(b => b.netBalance > 0.01)
.map(b => ({ ...b }))
.sort((a, b) => b.netBalance - a.netBalance);
const debtors = balances
.filter(b => b.netBalance < -0.01)
.map(b => ({ ...b, netBalance: Math.abs(b.netBalance) }))
.sort((a, b) => b.netBalance - a.netBalance);
const settlements = [];
let i = 0, j = 0;
while (i < creditors.length && j < debtors.length) {
const creditor = creditors[i];
const debtor = debtors[j];
const amount = Math.min(creditor.netBalance, debtor.netBalance);
if (amount > 0.01) {
settlements.push({
from: debtor.participantId,
fromName: debtor.participantName,
to: creditor.participantId,
toName: creditor.participantName,
amount: Math.round(amount * 100) / 100
});
}
creditor.netBalance -= amount;
debtor.netBalance -= amount;
if (creditor.netBalance < 0.01) i++;
if (debtor.netBalance < 0.01) j++;
}
return settlements;
}
}
// App state
const storage = new Storage();
let currentView = 'splits';
let currentSplit = null;
// Security: escape user-supplied strings before inserting into innerHTML
function escapeHtml(str) {
const div = document.createElement('div');
div.textContent = String(str ?? '');
return div.innerHTML;
}
// UI Helpers
function showView(view) {
document.getElementById('splitsView').classList.add('hidden');
document.getElementById('splitDetailView').classList.add('hidden');
document.getElementById('settingsView').classList.add('hidden');
if (view === 'splits') {
document.getElementById('splitsView').classList.remove('hidden');
renderSplits();
} else if (view === 'detail') {
document.getElementById('splitDetailView').classList.remove('hidden');
renderSplitDetail();
} else if (view === 'settings') {
document.getElementById('settingsView').classList.remove('hidden');
document.getElementById('currencySelect').value = storage.settings.currency;
}
currentView = view;
}
function showConfirm(message, onYes) {
const modal = document.getElementById('confirmModal');
document.getElementById('confirmMessage').textContent = message;
modal.classList.add('active');
const handleYes = () => {
onYes();
modal.classList.remove('active');
cleanup();
};
const handleNo = () => {
modal.classList.remove('active');
cleanup();
};
const cleanup = () => {
document.getElementById('confirmYes').removeEventListener('click', handleYes);
document.getElementById('confirmNo').removeEventListener('click', handleNo);
};
document.getElementById('confirmYes').addEventListener('click', handleYes);
document.getElementById('confirmNo').addEventListener('click', handleNo);
}
function getInitials(name) {
return name.split(' ').map(n => n[0]).join('').toUpperCase().slice(0, 2);
}
function showToast(message, type = 'info') {
const toast = document.getElementById('toast');
toast.textContent = message;
toast.className = `toast ${type}`;
toast.classList.add('show');
clearTimeout(toast._timer);
toast._timer = setTimeout(() => toast.classList.remove('show'), 3000);
}
// Render Functions
function renderSplits() {
const splits = storage.getSplits();
const container = document.getElementById('splitsList');
if (splits.length === 0) {
container.innerHTML = `
<div class="text-center py-12">
<div class="w-16 h-16 mx-auto mb-4 rounded-full bg-white/10 flex items-center justify-center">
<i class="fas fa-users text-3xl text-white/50"></i>
</div>
<p class="text-white/60 text-lg mb-2">No splits yet</p>
<p class="text-white/40 text-sm">Create your first split to get started</p>
</div>
`;
return;
}
container.innerHTML = splits.map(split => {
const participants = storage.getParticipants(split.id);
const expenses = storage.getExpenses(split.id);
const total = expenses.reduce((sum, e) => sum + e.amount, 0);
const currency = storage.settings.currency;
return `
<div class="list-item cursor-pointer" onclick="selectSplit('${split.id}')">
<div class="flex items-center justify-between">
<div class="flex-1">
<h3 class="text-lg font-semibold text-white">${escapeHtml(split.name)}</h3>
<p class="text-sm text-white/50">
Created ${new Date(split.createdAt).toLocaleDateString()}
</p>
<div class="flex flex-wrap gap-3 mt-1">
<span class="text-xs text-white/40">
<i class="fas fa-users mr-1"></i>${participants.length} ${participants.length === 1 ? 'person' : 'people'}
</span>
<span class="text-xs text-white/40">
<i class="fas fa-receipt mr-1"></i>${expenses.length} ${expenses.length === 1 ? 'expense' : 'expenses'}
</span>
${total > 0 ? `<span class="text-xs text-indigo-400 font-medium">${currency}${total.toFixed(2)} total</span>` : ''}
</div>
</div>
<i class="fas fa-chevron-right text-white/50 ml-3"></i>
</div>
</div>
`;
}).join('');
}
function renderSplitDetail() {
if (!currentSplit) return;
document.getElementById('splitName').textContent = currentSplit.name;
document.getElementById('splitDate').textContent =
`Created ${new Date(currentSplit.createdAt).toLocaleDateString()}`;
// Stats strip
const expenses = storage.getExpenses(currentSplit.id);
const participants = storage.getParticipants(currentSplit.id);
const total = expenses.reduce((sum, e) => sum + e.amount, 0);
const currency = storage.settings.currency;
const perPerson = participants.length > 0 ? total / participants.length : 0;
document.getElementById('splitStats').innerHTML = `
<div class="stat-card">
<p class="text-2xl font-bold text-white">${currency}${total.toFixed(2)}</p>
<p class="text-xs text-white/50 mt-1">Total Spent</p>
</div>
<div class="stat-card">
<p class="text-2xl font-bold text-white">${expenses.length}</p>
<p class="text-xs text-white/50 mt-1">Expenses</p>
</div>
<div class="stat-card">
<p class="text-2xl font-bold text-white">${currency}${perPerson.toFixed(2)}</p>
<p class="text-xs text-white/50 mt-1">Per Person</p>
</div>
`;
renderParticipants();
renderExpenses();
renderBalances();
}
function renderParticipants() {
const participants = storage.getParticipants(currentSplit.id);
const container = document.getElementById('participantsList');
const paidBySelect = document.getElementById('paidBy');
if (participants.length === 0) {
container.innerHTML = `
<div class="text-center py-8">
<div class="w-12 h-12 mx-auto mb-3 rounded-full bg-white/10 flex items-center justify-center">
<i class="fas fa-users text-2xl text-white/50"></i>
</div>
<p class="text-white/60">No participants yet</p>
</div>
`;
paidBySelect.innerHTML = '<option value="">Select who paid</option>';
updateSplitAmongOptions();
return;
}
container.innerHTML = participants.map(p => `
<div class="list-item flex items-center justify-between">
<div class="flex items-center gap-3">
<div class="avatar">${escapeHtml(getInitials(p.name))}</div>
<span class="text-white font-medium">${escapeHtml(p.name)}</span>
</div>
<button onclick="deleteParticipant('${p.id}')" class="glass-button btn-ghost w-10 h-10 rounded-full p-0">
<i class="fas fa-trash text-red-400"></i>
</button>
</div>
`).join('');
paidBySelect.innerHTML = '<option value="">Select who paid</option>' +
participants.map(p => `<option value="${p.id}">${p.name}</option>`).join('');
updateSplitAmongOptions();
}
function updateSplitAmongOptions() {
const participants = storage.getParticipants(currentSplit.id);
const equalContainer = document.getElementById('splitAmongCheckboxes');
const unequalContainer = document.getElementById('unequalSharesInputs');
const percentageContainer = document.getElementById('percentageSharesInputs');
equalContainer.innerHTML = participants.map(p => `
<label class="flex items-center gap-2 cursor-pointer">
<input type="checkbox" value="${p.id}" class="split-participant w-4 h-4" checked>
<span class="text-white">${escapeHtml(p.name)}</span>
</label>
`).join('');
unequalContainer.innerHTML = participants.map(p => `
<div class="flex items-center gap-2">
<input type="checkbox" value="${p.id}" class="unequal-participant w-4 h-4" checked>
<span class="text-white flex-1">${escapeHtml(p.name)}</span>
<input type="number" step="0.01" min="0" placeholder="0.00"
class="glass-input w-32 unequal-share" data-participant="${p.id}">
</div>
`).join('');
percentageContainer.innerHTML = participants.map(p => `
<div class="flex items-center gap-2">
<input type="checkbox" value="${p.id}" class="percentage-participant w-4 h-4" checked>
<span class="text-white flex-1">${escapeHtml(p.name)}</span>
<div class="flex items-center gap-1">
<input type="number" step="1" min="0" max="100" placeholder="0"
class="glass-input w-24 percentage-share" data-participant="${p.id}">
<span class="text-white/60">%</span>
</div>
</div>
`).join('');
}
function updatePercentageTotal() {
const checked = Array.from(document.querySelectorAll('.percentage-participant:checked'));
let total = 0;
checked.forEach(cb => {
const input = document.querySelector(`.percentage-share[data-participant="${cb.value}"]`);
total += parseFloat(input?.value) || 0;
});
const el = document.getElementById('percentageTotal');
if (el) {
el.textContent = `Total: ${total.toFixed(1)}%`;
el.className = Math.abs(total - 100) < 0.01
? 'text-green-400 text-sm mt-2'
: 'text-white/50 text-sm mt-2';
}
}
function renderExpenses() {
const expenses = storage.getExpenses(currentSplit.id);
const container = document.getElementById('expensesList');
const currency = storage.settings.currency;
if (expenses.length === 0) {
container.innerHTML = `
<div class="text-center py-8">
<div class="w-12 h-12 mx-auto mb-3 rounded-full bg-white/10 flex items-center justify-center">
<i class="fas fa-receipt text-2xl text-white/50"></i>
</div>
<p class="text-white/60">No expenses yet</p>
</div>
`;
return;
}
const participants = storage.getParticipants(currentSplit.id);
const getName = (id) => participants.find(p => p.id === id)?.name || 'Unknown';
const categoryLabel = {
food: '🍽️ Food & Drinks', transport: '🚗 Transport',
accommodation: '🏠 Accommodation', entertainment: '🎉 Entertainment',
shopping: '🛍️ Shopping', utilities: '💡 Utilities',
health: '🏥 Health', other: '📦 Other'
};
container.innerHTML = expenses.map(expense => {
const splitInfo = expense.splitType === 'equal'
? `Split equally among ${expense.splitAmong.length}`
: expense.splitType === 'percentage'
? 'Split by percentage'
: 'Split unequally';
const cat = categoryLabel[expense.category] || '📦 Other';
const isSettlement = expense.category === 'settlement';
return `
<div class="list-item ${isSettlement ? 'balance-positive' : ''}">
<div class="flex justify-between mb-1">
<h4 class="text-white font-semibold">${escapeHtml(expense.description)}</h4>
<span class="text-white font-bold">${currency}${expense.amount.toFixed(2)}</span>
</div>
<p class="text-white/50 text-sm mb-2">
Paid by <strong class="text-white/70">${escapeHtml(getName(expense.paidBy))}</strong> • ${splitInfo}
</p>
<div class="flex justify-between items-center">
<div class="flex items-center gap-2">
${!isSettlement ? `<span class="category-badge">${cat}</span>` : '<span class="category-badge" style="background:rgba(34,197,94,0.15);border-color:rgba(34,197,94,0.3);color:#4ade80">✅ Settlement</span>'}
<span class="text-white/40 text-xs">${new Date(expense.createdAt).toLocaleDateString()}</span>
</div>
<button onclick="deleteExpense('${expense.id}')" class="glass-button btn-ghost text-sm px-3 py-1">
<i class="fas fa-trash mr-1"></i>Delete
</button>
</div>
</div>
`;
}).join('');
}
function renderBalances() {
const balances = storage.calculateBalances(currentSplit.id);
const settlements = storage.calculateSettlements(currentSplit.id);
const container = document.getElementById('balancesList');
const currency = storage.settings.currency;
if (balances.length === 0) {
container.innerHTML = `
<div class="text-center py-8">
<div class="w-12 h-12 mx-auto mb-3 rounded-full bg-white/10 flex items-center justify-center">
<i class="fas fa-scale-balanced text-2xl text-white/50"></i>
</div>
<p class="text-white/60">No balances to show</p>
</div>
`;
return;
}
const balancesHtml = balances.map(b => {
const colorClass = b.netBalance > 0.01 ? 'balance-positive' :
b.netBalance < -0.01 ? 'balance-negative' : '';
const textColor = b.netBalance > 0.01 ? 'text-green-400' :
b.netBalance < -0.01 ? 'text-red-400' : 'text-white/60';
const icon = b.netBalance > 0.01 ? 'trending-up' :
b.netBalance < -0.01 ? 'trending-down' : 'equals';
const status = b.netBalance > 0.01 ? 'is owed' :
b.netBalance < -0.01 ? 'owes' : 'settled';
return `
<div class="list-item ${colorClass}">
<div class="flex items-center justify-between">
<div class="flex items-center gap-3">
<i class="fas fa-${icon} ${textColor}"></i>
<span class="text-white font-medium">${escapeHtml(b.participantName)}</span>
</div>
<div class="text-right">
<p class="${textColor} font-bold text-lg">
${b.netBalance >= 0 ? '+' : ''}${currency}${b.netBalance.toFixed(2)}
</p>
<p class="text-white/50 text-xs">${status}</p>
</div>
</div>
</div>
`;
}).join('');
let settlementsHtml = '';
if (settlements.length > 0) {
settlementsHtml = `
<h3 class="text-lg font-semibold text-white/80 mt-6 mb-1">Suggested Settlements</h3>