@extends('layouts.admin')

@section('content')
<div class="p-8">
    <div class="mb-8">
        <h1 class="text-3xl font-bold text-gray-900">Invoices</h1>
        <p class="text-gray-600 mt-2">Manage and view all invoices</p>
    </div>

    <!-- Success/Error Messages -->
    @if(session('success'))
        <div class="mb-6 bg-green-50 border-l-4 border-green-400 p-4 rounded-lg">
            <div class="flex">
                <div class="flex-shrink-0">
                    <svg class="h-5 w-5 text-green-400" viewBox="0 0 20 20" fill="currentColor">
                        <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd" />
                    </svg>
                </div>
                <div class="ml-3">
                    <p class="text-sm text-green-700">{{ session('success') }}</p>
                </div>
            </div>
        </div>
    @endif

    @if(session('error'))
        <div class="mb-6 bg-red-50 border-l-4 border-red-400 p-4 rounded-lg">
            <div class="flex">
                <div class="flex-shrink-0">
                    <svg class="h-5 w-5 text-red-400" viewBox="0 0 20 20" fill="currentColor">
                        <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z" clip-rule="evenodd" />
                    </svg>
                </div>
                <div class="ml-3">
                    <p class="text-sm text-red-700">{{ session('error') }}</p>
                </div>
            </div>
        </div>
    @endif

    <!-- Filters -->
    <div class="bg-white rounded-lg shadow-sm border border-gray-200 p-6 mb-6">
        <form method="GET" action="{{ route('admin.invoices.index') }}" class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
            <div>
                <label for="invoice_number" class="block text-sm font-medium text-gray-700 mb-2">Invoice Number</label>
                <input type="text"
                       id="invoice_number"
                       name="invoice_number"
                       value="{{ request('invoice_number') }}"
                       class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500"
                       placeholder="Search by invoice number">
            </div>

            <div>
                <label for="user_email" class="block text-sm font-medium text-gray-700 mb-2">User Email</label>
                <input type="email"
                       id="user_email"
                       name="user_email"
                       value="{{ request('user_email') }}"
                       class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500"
                       placeholder="Search by email">
            </div>

            <div>
                <label for="status" class="block text-sm font-medium text-gray-700 mb-2">Status</label>
                <select id="status"
                        name="status"
                        class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500">
                    <option value="">All Statuses</option>
                    <option value="paid" {{ request('status') == 'paid' ? 'selected' : '' }}>Paid</option>
                    <option value="pending" {{ request('status') == 'pending' ? 'selected' : '' }}>Pending</option>
                    <option value="cancelled" {{ request('status') == 'cancelled' ? 'selected' : '' }}>Cancelled</option>
                </select>
            </div>

            <div>
                <label for="date_from" class="block text-sm font-medium text-gray-700 mb-2">Date From</label>
                <input type="date"
                       id="date_from"
                       name="date_from"
                       value="{{ request('date_from') }}"
                       class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500">
            </div>

            <div>
                <label for="date_to" class="block text-sm font-medium text-gray-700 mb-2">Date To</label>
                <input type="date"
                       id="date_to"
                       name="date_to"
                       value="{{ request('date_to') }}"
                       class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500">
            </div>

            <div class="flex items-end gap-2">
                <button type="submit"
                        class="px-4 py-2 bg-indigo-600 text-white rounded-md hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2">
                    Filter
                </button>
                <a href="{{ route('admin.invoices.index') }}"
                   class="px-4 py-2 bg-gray-300 text-gray-700 rounded-md hover:bg-gray-400 focus:outline-none focus:ring-2 focus:ring-gray-500 focus:ring-offset-2">
                    Clear
                </a>
            </div>
        </form>
    </div>

    <!-- Invoices Table -->
    <div class="bg-white rounded-lg shadow-sm border border-gray-200 overflow-hidden">
        @if($invoices->count() > 0)
            <div class="overflow-x-auto">
                <table class="min-w-full divide-y divide-gray-200">
                    <thead class="bg-gray-50">
                        <tr>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Invoice #</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Customer</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Date</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Amount</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Status</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Visited</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Actions</th>
                        </tr>
                    </thead>
                    <tbody class="bg-white divide-y divide-gray-200">
                        @foreach($invoices as $invoice)
                        <tr class="hover:bg-gray-50">
                            <td class="px-6 py-4 whitespace-nowrap">
                                <div class="text-sm font-medium text-gray-900">{{ $invoice->invoice_number }}</div>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap">
                                <div class="text-sm text-gray-900">{{ $invoice->user->name ?? 'N/A' }}</div>
                                <div class="text-sm text-gray-500">{{ $invoice->user->email ?? 'N/A' }}</div>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap">
                                <div class="text-sm text-gray-900">{{ $invoice->invoice_date->format('M d, Y') }}</div>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap">
                                <div class="text-sm font-medium text-gray-900">₹{{ number_format($invoice->amount, 2) }}</div>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap">
                                <span class="inline-flex px-2 py-1 text-xs font-semibold rounded-full
                                    {{ $invoice->status === 'paid' ? 'bg-green-100 text-green-800' :
                                       ($invoice->status === 'pending' ? 'bg-yellow-100 text-yellow-800' : 'bg-red-100 text-red-800') }}">
                                    {{ ucfirst($invoice->status) }}
                                </span>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap">
                                @if($invoice->isVisited())
                                    <div class="flex flex-col">
                                        <span class="inline-flex px-2 py-1 text-xs font-semibold rounded-full bg-green-100 text-green-800 mb-1">
                                            ✓ Visited
                                        </span>
                                        <div class="text-xs text-gray-500">
                                            {{ $invoice->visited_at->format('M d, Y H:i') }}
                                        </div>
                                        @if($invoice->visitedBy)
                                        <div class="text-xs text-gray-500">
                                            By: {{ $invoice->visitedBy->name }}
                                        </div>
                                        @endif
                                    </div>
                                @else
                                    <span class="inline-flex px-2 py-1 text-xs font-semibold rounded-full bg-gray-100 text-gray-800">
                                        Not Visited
                                    </span>
                                @endif
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm font-medium">
                                <div class="flex space-x-3">
                                    <!-- View Button -->
                                    <a href="{{ route('admin.invoices.show', $invoice) }}"
                                       class="inline-flex items-center justify-center w-8 h-8 text-indigo-600 hover:text-indigo-900 hover:bg-indigo-50 rounded-md transition-colors duration-200"
                                       title="View Invoice">
                                        <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"/>
                                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z"/>
                                        </svg>
                                    </a>

                                    <!-- Download Button -->
                                    <a href="{{ route('admin.invoices.download', $invoice) }}"
                                       class="inline-flex items-center justify-center w-8 h-8 text-red-600 hover:text-red-900 hover:bg-red-50 rounded-md transition-colors duration-200"
                                       title="Download PDF">
                                        <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 10v6m0 0l-3-3m3 3l3-3m2 8H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"/>
                                        </svg>
                                    </a>

                                    <!-- Resend Email Button -->
                                    <form method="POST" action="{{ route('admin.invoices.resend-email', $invoice) }}" class="inline">
                                        @csrf
                                        <button type="submit"
                                                class="inline-flex items-center justify-center w-8 h-8 text-green-600 hover:text-green-900 hover:bg-green-50 rounded-md transition-colors duration-200"
                                                onclick="return confirm('Are you sure you want to resend the invoice email?')"
                                                title="Resend Email">
                                            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 8l7.89 4.26a2 2 0 002.22 0L21 8M5 19h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/>
                                            </svg>
                                        </button>
                                    </form>
                                </div>
                            </td>
                        </tr>
                        @endforeach
                    </tbody>
                </table>
            </div>

            <!-- Pagination -->
            <div class="px-6 py-4 border-t border-gray-200">
                {{ $invoices->appends(request()->query())->links() }}
            </div>
        @else
            <div class="text-center py-12">
                <svg class="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"/>
                </svg>
                <h3 class="mt-2 text-sm font-medium text-gray-900">No invoices found</h3>
                <p class="mt-1 text-sm text-gray-500">Get started by creating a new invoice.</p>
            </div>
        @endif
    </div>
</div>
@endsection