{% extends 'base.html' %}
{% load static %}

{% block title %}Wallet - NetCop AI Agent{% endblock %}

{% block content %}
<div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem;">
    <h1>Wallet</h1>
    <a href="/dashboard/" class="btn btn-secondary">← Back to Dashboard</a>
</div>

<!-- Wallet Balance -->
<div class="card">
    <div class="card-header">
        <h3 class="card-title">Current Balance</h3>
    </div>
    <div style="text-align: center; padding: 2rem 0;">
        <div style="font-size: 3rem; font-weight: 700; color: var(--black); margin-bottom: 1rem;" id="walletBalance">
            0.00 AED
        </div>
        <button onclick="showTopUpForm()" class="btn btn-primary">
            Top Up Wallet
        </button>
    </div>
</div>

<!-- Top Up Form (Hidden by default) -->
<div id="topUpForm" class="card" style="display: none;">
    <div class="card-header">
        <h3 class="card-title">Top Up Wallet</h3>
        <p style="color: var(--gray-600); margin: 0;">Add funds to your wallet using Stripe Checkout</p>
    </div>
    
    <form id="topUpFormElement">
        <div class="form-group">
            <label for="amount" class="form-label">Amount (AED)</label>
            <input 
                type="number" 
                id="amount" 
                name="amount" 
                class="form-input" 
                required
                min="1"
                step="0.01"
                placeholder="10.00"
            >
        </div>
        
        <div style="display: flex; gap: 1rem;">
            <button type="submit" class="btn btn-primary">
                Proceed to Checkout
            </button>
            <button type="button" onclick="hideTopUpForm()" class="btn btn-secondary">
                Cancel
            </button>
        </div>
    </form>
</div>

<!-- Transaction History -->
<div class="card">
    <div class="card-header">
        <h3 class="card-title">Transaction History</h3>
    </div>
    
    <div id="transactionHistory">
        <p style="text-align: center; color: var(--gray-600); padding: 2rem;">Loading transactions...</p>
    </div>
</div>

<script>
document.addEventListener('DOMContentLoaded', async () => {
    if (!requireAuth()) return;
    
    await loadWalletData();
    
    // Set up top-up form
    handleFormSubmit('#topUpFormElement', async (data) => {
        const response = await api.post('/wallet/top-up/', { amount: parseFloat(data.amount) });
        
        if (response.checkout_url) {
            showMessage('Redirecting to Stripe Checkout...', 'success');
            window.location.href = response.checkout_url;
        } else {
            throw new Error('Failed to create checkout session');
        }
    });
});

async function loadWalletData() {
    try {
        // Load user profile for balance
        const profile = await api.get('/auth/profile/');
        document.getElementById('walletBalance').textContent = profile.wallet_balance.toFixed(2) + ' AED';

        // Load transaction history
        const transactions = await api.get('/wallet/transactions/');
        displayTransactionHistory(transactions);

    } catch (error) {
        showMessage('Failed to load wallet data: ' + error.message, 'error');
    }
}

function displayTransactionHistory(transactions) {
    const container = document.getElementById('transactionHistory');
    
    if (transactions.length === 0) {
        container.innerHTML = '<p style="text-align: center; color: var(--gray-600); padding: 2rem;">No transactions yet</p>';
        return;
    }

    const tableHTML = `
        <table class="table">
            <thead>
                <tr>
                    <th>Type</th>
                    <th>Amount</th>
                    <th>Status</th>
                    <th>Description</th>
                    <th>Date</th>
                </tr>
            </thead>
            <tbody>
                ${transactions.map(transaction => `
                    <tr>
                        <td style="text-transform: capitalize; font-weight: 500;">
                            ${getTransactionIcon(transaction.transaction_type)} ${transaction.transaction_type}
                        </td>
                        <td style="font-weight: 600; color: ${getAmountColor(transaction.transaction_type)};">
                            ${transaction.transaction_type === 'deposit' ? '+' : '-'}${parseFloat(transaction.amount).toFixed(2)} AED
                        </td>
                        <td>
                            <span style="font-size: 0.75rem; padding: 0.25rem 0.5rem; border-radius: 12px; background: ${getStatusBg(transaction.status)}; text-transform: capitalize;">
                                ${transaction.status}
                            </span>
                        </td>
                        <td style="color: var(--gray-600);">
                            ${transaction.description || '-'}
                        </td>
                        <td style="color: var(--gray-600); font-size: 0.875rem;">
                            ${formatDate(transaction.created_at)}
                        </td>
                    </tr>
                `).join('')}
            </tbody>
        </table>
    `;
    
    container.innerHTML = tableHTML;
}

function getTransactionIcon(type) {
    switch (type) {
        case 'deposit': return '💳';
        case 'withdrawal': return '💸';
        case 'fee': return '⚡';
        default: return '📝';
    }
}

function getAmountColor(type) {
    return type === 'deposit' ? 'var(--gray-700)' : 'var(--gray-500)';
}

function getStatusBg(status) {
    switch (status) {
        case 'completed': return 'var(--gray-100)';
        case 'failed': return 'var(--gray-200)';
        case 'pending': return 'var(--gray-50)';
        default: return 'var(--gray-100)';
    }
}

function showTopUpForm() {
    document.getElementById('topUpForm').style.display = 'block';
    document.getElementById('amount').focus();
}

function hideTopUpForm() {
    document.getElementById('topUpForm').style.display = 'none';
    document.getElementById('topUpFormElement').reset();
}

// Handle returning from Stripe (success/cancel)
const urlParams = new URLSearchParams(window.location.search);
if (urlParams.get('success') === 'true') {
    // Visual feedback: wallet balance will show updated amount
    loadWalletData(); // Refresh data
} else if (urlParams.get('canceled') === 'true') {
    showMessage('Payment was canceled', 'error');
}
</script>
{% endblock %}