Add complete Cospend expense sharing feature

- Add MongoDB models for Payment and PaymentSplit with proper splitting logic
- Implement API routes for CRUD operations and balance calculations
- Create dashboard with balance overview and recent activity
- Add payment creation form with file upload (using $IMAGE_DIR)
- Implement shallow routing with modal side panel for payment details
- Support multiple split methods: equal, full payment, custom proportions
- Add responsive design for desktop and mobile
- Integrate with existing Authentik authentication

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
2025-09-08 21:15:45 +02:00
parent 95b49ab6ce
commit 815975dba0
21 changed files with 3435 additions and 191 deletions

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import type { PageServerLoad } from './$types';
import { redirect } from '@sveltejs/kit';
export const load: PageServerLoad = async ({ locals, params }) => {
const session = await locals.auth();
if (!session) {
throw redirect(302, '/login');
}
return {
session,
paymentId: params.id
};
};

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<script>
import { onMount } from 'svelte';
import { goto } from '$app/navigation';
export let data;
let payment = null;
let loading = true;
let saving = false;
let error = null;
onMount(async () => {
await loadPayment();
});
async function loadPayment() {
try {
const response = await fetch(`/api/cospend/payments/${data.paymentId}`);
if (!response.ok) {
throw new Error('Failed to load payment');
}
const result = await response.json();
payment = result.payment;
} catch (err) {
error = err.message;
} finally {
loading = false;
}
}
async function handleSubmit() {
if (!payment) return;
saving = true;
error = null;
try {
const response = await fetch(`/api/cospend/payments/${data.paymentId}`, {
method: 'PUT',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(payment)
});
if (!response.ok) {
throw new Error('Failed to update payment');
}
await goto('/cospend/payments');
} catch (err) {
error = err.message;
} finally {
saving = false;
}
}
function formatDate(dateString) {
return new Date(dateString).toISOString().split('T')[0];
}
</script>
<svelte:head>
<title>Edit Payment - Cospend</title>
</svelte:head>
<main class="edit-payment">
<div class="header">
<h1>Edit Payment</h1>
<a href="/cospend/payments" class="back-link">← Back to Payments</a>
</div>
{#if loading}
<div class="loading">Loading payment...</div>
{:else if error}
<div class="error">Error: {error}</div>
{:else if payment}
<form on:submit|preventDefault={handleSubmit} class="payment-form">
<div class="form-section">
<h2>Payment Details</h2>
<div class="form-group">
<label for="title">Title *</label>
<input
type="text"
id="title"
bind:value={payment.title}
required
/>
</div>
<div class="form-group">
<label for="description">Description</label>
<textarea
id="description"
bind:value={payment.description}
rows="3"
></textarea>
</div>
<div class="form-row">
<div class="form-group">
<label for="amount">Amount (CHF) *</label>
<input
type="number"
id="amount"
bind:value={payment.amount}
required
min="0"
step="0.01"
/>
</div>
<div class="form-group">
<label for="date">Date</label>
<input
type="date"
id="date"
value={formatDate(payment.date)}
on:change={(e) => payment.date = new Date(e.target.value).toISOString()}
required
/>
</div>
</div>
<div class="form-group">
<label for="paidBy">Paid by</label>
<input
type="text"
id="paidBy"
bind:value={payment.paidBy}
required
/>
</div>
</div>
{#if payment.splits && payment.splits.length > 0}
<div class="form-section">
<h2>Current Splits</h2>
<div class="splits-display">
{#each payment.splits as split}
<div class="split-item">
<span>{split.username}</span>
<span class:positive={split.amount < 0} class:negative={split.amount > 0}>
{#if split.amount > 0}
owes CHF {split.amount.toFixed(2)}
{:else if split.amount < 0}
owed CHF {Math.abs(split.amount).toFixed(2)}
{:else}
even
{/if}
</span>
</div>
{/each}
</div>
<p class="note">Note: To modify splits, please delete and recreate the payment.</p>
</div>
{/if}
<div class="form-actions">
<button type="button" class="btn-secondary" on:click={() => goto('/cospend/payments')}>
Cancel
</button>
<button type="submit" class="btn-primary" disabled={saving}>
{saving ? 'Saving...' : 'Save Changes'}
</button>
</div>
</form>
{/if}
</main>
<style>
.edit-payment {
max-width: 800px;
margin: 0 auto;
padding: 2rem;
}
.header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 2rem;
}
.header h1 {
margin: 0;
color: #333;
}
.back-link {
color: #1976d2;
text-decoration: none;
}
.loading, .error {
text-align: center;
padding: 2rem;
font-size: 1.1rem;
}
.error {
color: #d32f2f;
background-color: #ffebee;
border-radius: 0.5rem;
}
.payment-form {
display: flex;
flex-direction: column;
gap: 2rem;
}
.form-section {
background: white;
padding: 1.5rem;
border-radius: 0.75rem;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.form-section h2 {
margin-top: 0;
margin-bottom: 1rem;
color: #333;
font-size: 1.25rem;
}
.form-group {
margin-bottom: 1rem;
}
.form-row {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 1rem;
}
label {
display: block;
margin-bottom: 0.5rem;
font-weight: 500;
color: #555;
}
input, textarea {
width: 100%;
padding: 0.75rem;
border: 1px solid #ddd;
border-radius: 0.5rem;
font-size: 1rem;
box-sizing: border-box;
}
input:focus, textarea:focus {
outline: none;
border-color: #1976d2;
box-shadow: 0 0 0 2px rgba(25, 118, 210, 0.2);
}
.splits-display {
display: flex;
flex-direction: column;
gap: 0.75rem;
margin-bottom: 1rem;
}
.split-item {
display: flex;
justify-content: space-between;
align-items: center;
padding: 0.75rem;
background-color: #f8f9fa;
border-radius: 0.5rem;
}
.positive {
color: #2e7d32;
font-weight: 500;
}
.negative {
color: #d32f2f;
font-weight: 500;
}
.note {
color: #666;
font-size: 0.9rem;
font-style: italic;
margin: 0;
}
.form-actions {
display: flex;
gap: 1rem;
justify-content: flex-end;
}
.btn-primary, .btn-secondary {
padding: 0.75rem 1.5rem;
border-radius: 0.5rem;
font-size: 1rem;
cursor: pointer;
transition: all 0.2s;
}
.btn-primary {
background-color: #1976d2;
color: white;
border: none;
}
.btn-primary:hover:not(:disabled) {
background-color: #1565c0;
}
.btn-primary:disabled {
opacity: 0.6;
cursor: not-allowed;
}
.btn-secondary {
background-color: #f5f5f5;
color: #333;
border: 1px solid #ddd;
}
.btn-secondary:hover {
background-color: #e8e8e8;
}
@media (max-width: 600px) {
.edit-payment {
padding: 1rem;
}
.form-row {
grid-template-columns: 1fr;
}
.form-actions {
flex-direction: column;
}
}
</style>