feat: implement new payment system with Stripe Elements and PayPal JS SDK

Agent-Logs-Url: https://github.com/dsaub/proyecto-final/sessions/09bd2b8f-753c-4431-816f-eba20606d5a0

Co-authored-by: dsaub <54474838+dsaub@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2026-04-10 06:17:54 +00:00
committed by GitHub
parent 7ff014a951
commit 233e42c14e
23 changed files with 1292 additions and 120 deletions
+269 -111
View File
@@ -4,45 +4,33 @@
{% block head %}
<script src="https://js.stripe.com/v3/"></script>
<script src="{% static 'js/checkout.js' %}"></script>
<script defer src="https://use.fontawesome.com/releases/v6.4.0/js/all.js"></script>
<script src="https://www.paypal.com/sdk/js?client-id={{ paypal_client_id }}&currency=EUR" defer></script>
<style>
.payment-methods {
display: flex;
gap: 15px;
flex-wrap: wrap;
margin-top: 20px;
#card-element {
border: 1px solid #ced4da;
border-radius: 0.375rem;
padding: 12px;
background-color: #fff;
}
.payment-btn {
flex: 1;
min-width: 200px;
padding: 12px 20px;
font-size: 16px;
font-weight: 500;
#card-element.StripeElement--focus {
border-color: #86b7fe;
box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, .25);
}
.payment-section {
background-color: #f8f9fa;
padding: 30px;
border-radius: 8px;
margin-top: 20px;
}
.payment-section h3 {
margin-bottom: 20px;
color: #212529;
#card-element.StripeElement--invalid {
border-color: #dc3545;
}
#card-errors { color: #dc3545; font-size: 0.875rem; margin-top: 4px; }
.payment-tab-content { display: none; }
.payment-tab-content.active { display: block; }
#paypal-button-container { min-height: 50px; }
</style>
{% endblock %}
{% block content %}
<div class="row mt-2">
<div class="col-md-12">
<!-- Token CSRF para requests AJAX -->
{% csrf_token %}
<div class="d-flex justify-content-between align-items-center mb-3">
<h1>Checkout</h1>
<a href="{% url 'view_cart' %}" class="btn btn-outline-secondary">← Volver al carrito</a>
@@ -66,6 +54,7 @@
Si el pago no se completa en ese tiempo, la reserva se cancelará automáticamente.
</div>
<!-- Step 1: Dirección de envío -->
<div class="card mb-4">
<div class="card-body">
<h5 class="card-title mb-3">1) Selecciona la dirección de envío</h5>
@@ -90,6 +79,7 @@
</div>
</div>
<!-- Resumen del pedido -->
<div class="table-responsive mb-4">
<table class="table table-striped align-middle">
<thead>
@@ -116,40 +106,111 @@
<tr>
<th colspan="2" class="text-end">Subtotal:</th>
<th colspan="2" class="text-end">{{ cart.get_total|format_price }}€</th>
<td></td>
</tr>
<tr>
<th colspan="2" class="text-end">IVA (21%):</th>
<th colspan="2" class="text-end text-success">+{{ cart.get_vat_amount|format_price }}€</th>
<td></td>
</tr>
<tr style="background-color: #f8f9fa;">
<th colspan="2" class="text-end" style="font-size: 1.1rem;">Total:</th>
<th colspan="2" class="text-end" style="font-size: 1.1rem;">{{ cart.get_total_with_vat|format_price }}€</th>
<td></td>
</tr>
</tfoot>
</table>
</div>
<div class="payment-section">
<h3>2) Selecciona tu método de pago</h3>
<div class="payment-methods">
<button
id="checkout-button"
class="btn btn-primary payment-btn"
data-config-url="/tienda/config/"
data-session-url="/tienda/create-checkout-session/"
{% if not addresses or stock_issues %}disabled{% endif %}>
💳 Pagar con Stripe
</button>
<button
id="paypal-button"
class="btn btn-warning payment-btn"
data-payment-url="{% url 'create_paypal_payment' %}"
{% if not addresses or stock_issues %}disabled{% endif %}>
🅿️ Pagar con PayPal
</button>
<!-- Step 2: Método de pago -->
<div class="card mb-4">
<div class="card-body">
<h5 class="card-title mb-3">2) Selecciona tu método de pago</h5>
<!-- Tabs -->
<ul class="nav nav-tabs mb-3" id="paymentTabs" role="tablist">
<li class="nav-item" role="presentation">
<button class="nav-link active" id="tab-card" data-tab="pane-card" type="button" role="tab">
💳 Tarjeta
</button>
</li>
<li class="nav-item" role="presentation">
<button class="nav-link" id="tab-paypal" data-tab="pane-paypal" type="button" role="tab">
🅿️ PayPal
</button>
</li>
</ul>
<!-- Tarjeta tab -->
<div id="pane-card" class="payment-tab-content active">
{% if saved_cards %}
<div class="mb-3">
<p class="fw-semibold">Tarjetas guardadas:</p>
{% for card in saved_cards %}
<div class="form-check mb-2">
<input class="form-check-input" type="radio" name="saved_card_choice" id="card-{{ card.id }}" value="{{ card.id }}" data-pm-id="{{ card.stripe_payment_method_id }}" {% if card.is_default %}checked{% endif %}>
<label class="form-check-label" for="card-{{ card.id }}">
{{ card.label }}
{% if card.is_default %}<span class="badge bg-secondary ms-1">Predeterminada</span>{% endif %}
</label>
</div>
{% endfor %}
<div class="form-check mb-3">
<input class="form-check-input" type="radio" name="saved_card_choice" id="card-new" value="new">
<label class="form-check-label" for="card-new">Usar nueva tarjeta</label>
</div>
</div>
{% endif %}
<div id="new-card-section" {% if saved_cards %}style="display:none;"{% endif %}>
<div class="mb-3">
<label class="form-label">Número de tarjeta</label>
<div id="card-element"></div>
<div id="card-errors" role="alert"></div>
</div>
<div class="form-check mb-3">
<input class="form-check-input" type="checkbox" id="save-card-checkbox">
<label class="form-check-label" for="save-card-checkbox">
Guardar esta tarjeta para futuras compras
</label>
</div>
</div>
<button
id="pay-card-btn"
class="btn btn-primary"
{% if not addresses or stock_issues %}disabled{% endif %}>
💳 Pagar con tarjeta
</button>
<div id="card-spinner" class="spinner-border spinner-border-sm ms-2 text-primary d-none" role="status"></div>
</div>
<!-- PayPal tab -->
<div id="pane-paypal" class="payment-tab-content">
{% if saved_paypal %}
<div class="alert alert-light border mb-3">
<small class="text-muted">Cuenta PayPal guardada:</small>
<strong class="d-block">{{ saved_paypal.paypal_email }}</strong>
</div>
{% endif %}
<div class="form-check mb-3">
<input class="form-check-input" type="checkbox" id="save-paypal-checkbox">
<label class="form-check-label" for="save-paypal-checkbox">
Guardar esta cuenta de PayPal para futuras compras
</label>
</div>
<div id="paypal-button-container"></div>
{% if not addresses or stock_issues %}
<div class="alert alert-warning mt-2">Selecciona una dirección de envío válida para activar el pago.</div>
{% endif %}
</div>
</div>
</div>
<!-- Resultado inline -->
<div id="payment-result" class="d-none"></div>
{% else %}
<div class="alert alert-info">Tu carrito está vacío.</div>
{% endif %}
@@ -157,72 +218,169 @@
</div>
<script>
// Manejo del botón de PayPal
const paypalButton = document.getElementById('paypal-button');
if (paypalButton) {
paypalButton.addEventListener('click', async function(e) {
e.preventDefault();
const CSRF_TOKEN = document.querySelector('[name=csrfmiddlewaretoken]').value;
const STRIPE_KEY = '{{ stripe_publishable_key }}';
const HAS_STOCK_ISSUES = {{ stock_issues|yesno:"true,false" }};
const HAS_ADDRESS = {{ addresses|yesno:"true,false" }};
const shippingAddressSelect = document.getElementById('shipping-address');
const selectedShippingAddress = shippingAddressSelect ? shippingAddressSelect.value : '';
if (!selectedShippingAddress) {
alert('Selecciona una dirección de envío para continuar.');
return;
}
const button = this;
const originalText = button.innerHTML;
button.disabled = true;
button.innerHTML = '<span class="spinner-border spinner-border-sm me-2"></span>Procesando...';
try {
// Obtener CSRF token de múltiples formas
let csrfToken = document.querySelector('[name=csrfmiddlewaretoken]')?.value;
if (!csrfToken) {
csrfToken = document.querySelector('input[name="csrfmiddlewaretoken"]')?.value;
}
if (!csrfToken) {
csrfToken = document.cookie.split('; ').find(row => row.startsWith('csrftoken='))?.split('=')[1];
}
console.log('CSRF Token encontrado:', csrfToken ? 'Sí' : 'No');
const response = await fetch(button.dataset.paymentUrl, {
method: 'POST',
headers: {
'X-CSRFToken': csrfToken || '',
'Content-Type': 'application/json',
},
body: JSON.stringify({ shipping_address_id: selectedShippingAddress })
});
console.log('Response status:', response.status);
const data = await response.json();
console.log('Response data:', data);
if (response.ok && data.redirect) {
// Redirigir a PayPal
console.log('Redirigiendo a:', data.redirect);
window.location.href = data.redirect;
} else if (data.error) {
console.error('Error en respuesta:', data.error);
alert('Error: ' + data.error);
button.disabled = false;
button.innerHTML = originalText;
} else {
console.error('Respuesta inesperada:', data);
alert('Error inesperado al procesar el pago');
button.disabled = false;
button.innerHTML = originalText;
}
} catch (error) {
console.error('Error en fetch:', error);
alert('Error al procesar el pago con PayPal: ' + error.message);
button.disabled = false;
button.innerHTML = originalText;
// ---- Tab switching ----
document.querySelectorAll('#paymentTabs .nav-link').forEach(btn => {
btn.addEventListener('click', () => {
document.querySelectorAll('#paymentTabs .nav-link').forEach(b => b.classList.remove('active'));
document.querySelectorAll('.payment-tab-content').forEach(p => p.classList.remove('active'));
btn.classList.add('active');
document.getElementById(btn.dataset.tab).classList.add('active');
});
});
// ---- Saved card / new card toggle ----
document.querySelectorAll('input[name="saved_card_choice"]').forEach(radio => {
radio.addEventListener('change', () => {
const newSection = document.getElementById('new-card-section');
if (newSection) {
newSection.style.display = radio.value === 'new' ? 'block' : 'none';
}
});
});
// ---- Stripe ----
const stripe = Stripe(STRIPE_KEY);
const elements = stripe.elements();
const cardElement = elements.create('card', { hidePostalCode: true });
cardElement.mount('#card-element');
cardElement.on('change', e => {
document.getElementById('card-errors').textContent = e.error ? e.error.message : '';
});
document.getElementById('pay-card-btn').addEventListener('click', async () => {
if (HAS_STOCK_ISSUES || !HAS_ADDRESS) return;
const addressId = document.getElementById('shipping-address').value;
if (!addressId) {
alert('Selecciona una dirección de envío para continuar.');
return;
}
const btn = document.getElementById('pay-card-btn');
const spinner = document.getElementById('card-spinner');
btn.disabled = true;
spinner.classList.remove('d-none');
// Determine if using saved card or new card
const savedCardRadio = document.querySelector('input[name="saved_card_choice"]:checked');
const usingSavedCard = savedCardRadio && savedCardRadio.value !== 'new';
const savedPmId = usingSavedCard ? savedCardRadio.dataset.pmId : null;
const saveCard = !usingSavedCard && document.getElementById('save-card-checkbox')?.checked;
try {
// 1. Create PaymentIntent
const piResp = await fetch('{% url "crear_payment_intent" %}', {
method: 'POST',
headers: { 'Content-Type': 'application/json', 'X-CSRFToken': CSRF_TOKEN },
body: JSON.stringify({
shipping_address_id: addressId,
saved_payment_method_id: usingSavedCard ? savedCardRadio.value : null,
save_card: saveCard,
}),
});
const piData = await piResp.json();
if (!piResp.ok) { throw new Error(piData.error || 'Error al crear el pago'); }
const clientSecret = piData.client_secret;
// 2. Confirm payment
let confirmResult;
if (usingSavedCard) {
confirmResult = await stripe.confirmCardPayment(clientSecret, {
payment_method: savedPmId,
});
} else {
confirmResult = await stripe.confirmCardPayment(clientSecret, {
payment_method: { card: cardElement },
});
}
if (confirmResult.error) {
throw new Error(confirmResult.error.message);
}
const pi = confirmResult.paymentIntent;
if (pi.status !== 'succeeded') {
throw new Error('El pago no fue completado.');
}
// 3. Confirm on server
const confirmPayload = { payment_intent_id: pi.id };
if (!usingSavedCard && saveCard) {
confirmPayload.payment_method_id = pi.payment_method;
}
const confirmResp = await fetch('{% url "confirmar_pago_tarjeta" %}', {
method: 'POST',
headers: { 'Content-Type': 'application/json', 'X-CSRFToken': CSRF_TOKEN },
body: JSON.stringify(confirmPayload),
});
const confirmData = await confirmResp.json();
if (!confirmResp.ok) { throw new Error(confirmData.error || 'Error al confirmar el pedido'); }
// 4. Show success
showSuccess(confirmData.transaction_code);
} catch (err) {
document.getElementById('card-errors').textContent = err.message;
btn.disabled = false;
spinner.classList.add('d-none');
}
});
// ---- PayPal ----
{% if not stock_issues and addresses %}
paypal.Buttons({
createOrder: async () => {
const addressId = document.getElementById('shipping-address').value;
if (!addressId) {
alert('Selecciona una dirección de envío para continuar.');
return Promise.reject(new Error('Sin dirección'));
}
const resp = await fetch('{% url "crear_orden_paypal" %}', {
method: 'POST',
headers: { 'Content-Type': 'application/json', 'X-CSRFToken': CSRF_TOKEN },
body: JSON.stringify({ shipping_address_id: addressId }),
});
const data = await resp.json();
if (!resp.ok) { throw new Error(data.error || 'Error al crear la orden'); }
return data.id;
},
onApprove: async (data) => {
const savePaypal = document.getElementById('save-paypal-checkbox')?.checked || false;
const resp = await fetch('{% url "capturar_orden_paypal" %}', {
method: 'POST',
headers: { 'Content-Type': 'application/json', 'X-CSRFToken': CSRF_TOKEN },
body: JSON.stringify({ orderID: data.orderID, save_paypal: savePaypal }),
});
const result = await resp.json();
if (!resp.ok) { throw new Error(result.error || 'Error al capturar el pago'); }
showSuccess(result.transaction_code);
},
onError: (err) => {
alert('Error en el pago con PayPal: ' + err);
},
}).render('#paypal-button-container');
{% endif %}
// ---- Success helper ----
function showSuccess(transactionCode) {
const resultDiv = document.getElementById('payment-result');
resultDiv.classList.remove('d-none');
resultDiv.innerHTML = `
<div class="alert alert-success p-4 text-center">
<h4>¡Pago completado!</h4>
<p>Tu pedido ha sido procesado correctamente.</p>
${transactionCode ? `<p><strong>Código de transacción:</strong> ${transactionCode}</p>` : ''}
<a href="{% url 'index' %}" class="btn btn-primary mt-2">Volver a la tienda</a>
<a href="{% url 'mis_compras' %}" class="btn btn-outline-primary mt-2 ms-2">Ver mis compras</a>
</div>
`;
window.scrollTo({ top: resultDiv.offsetTop - 20, behavior: 'smooth' });
}
</script>
{% endblock %}
{% endblock %}