@extends('layouts.app')
@section('title', 'Invoices')
@section('page-title', 'Invoices')

@section('content')
{{-- Stats --}}
<div class="grid grid-cols-2 lg:grid-cols-4 gap-4 mb-6">
    <div class="card">
        <p class="text-xs text-gray-500 uppercase tracking-wider">This Month</p>
        <p class="text-xl font-bold text-gray-900 mt-1">₹{{ number_format($stats['total_this_month'], 2) }}</p>
    </div>
    <div class="card">
        <p class="text-xs text-gray-500 uppercase tracking-wider">Outstanding</p>
        <p class="text-xl font-bold text-orange-500 mt-1">₹{{ number_format($stats['outstanding'], 2) }}</p>
    </div>
    <div class="card">
        <p class="text-xs text-gray-500 uppercase tracking-wider">Overdue</p>
        <p class="text-xl font-bold text-red-600 mt-1">{{ $stats['overdue_count'] }}</p>
    </div>
    <div class="card">
        <p class="text-xs text-gray-500 uppercase tracking-wider">Drafts</p>
        <p class="text-xl font-bold text-gray-600 mt-1">{{ $stats['draft_count'] }}</p>
    </div>
</div>

{{-- Filters + Actions --}}
<div class="card p-0 overflow-hidden">
    <div class="p-4 border-b border-gray-100 flex flex-col sm:flex-row gap-3">
        <form method="GET" class="flex flex-wrap gap-2 flex-1">
            <input type="text" name="search" value="{{ request('search') }}"
                   placeholder="Search invoice # or customer..."
                   class="form-input max-w-xs text-sm">
            <select name="status" class="form-input w-36 text-sm">
                <option value="">All Status</option>
                @foreach(['draft','sent','partial','paid','overdue','cancelled'] as $s)
                <option value="{{ $s }}" {{ request('status') === $s ? 'selected' : '' }}>{{ ucfirst($s) }}</option>
                @endforeach
            </select>
            <input type="date" name="from_date" value="{{ request('from_date') }}" class="form-input w-36 text-sm">
            <input type="date" name="to_date"   value="{{ request('to_date') }}"   class="form-input w-36 text-sm">
            <button type="submit" class="btn-secondary text-sm py-1.5 px-3">Filter</button>
            @if(request()->hasAny(['search','status','from_date','to_date']))
            <a href="{{ route('invoices.index') }}" class="btn-secondary text-sm py-1.5 px-3">Clear</a>
            @endif
        </form>
        <a href="{{ route('invoices.create') }}" class="btn-primary text-sm py-1.5">
            <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 4v16m8-8H4"/></svg>
            New Invoice
        </a>
    </div>

    <div class="overflow-x-auto">
        <table class="w-full text-sm">
            <thead class="bg-gray-50 border-b border-gray-100">
                <tr>
                    <th class="table-th">Invoice #</th>
                    <th class="table-th">Customer</th>
                    <th class="table-th">Date</th>
                    <th class="table-th">Due Date</th>
                    <th class="table-th text-right">Amount</th>
                    <th class="table-th text-right">Due</th>
                    <th class="table-th">Status</th>
                    <th class="table-th text-right">Actions</th>
                </tr>
            </thead>
            <tbody class="divide-y divide-gray-50">
                @forelse($invoices as $invoice)
                <tr class="hover:bg-gray-50 {{ $invoice->isOverdue() ? 'bg-red-50' : '' }}">
                    <td class="table-td">
                        <a href="{{ route('invoices.show', $invoice) }}" class="text-indigo-600 font-semibold hover:underline">
                            {{ $invoice->invoice_number }}
                        </a>
                        @if($invoice->invoice_type !== 'tax_invoice')
                        <span class="badge-gray ml-1 text-xs">{{ str_replace('_',' ',ucfirst($invoice->invoice_type)) }}</span>
                        @endif
                    </td>
                    <td class="table-td">
                        <p class="font-medium">{{ $invoice->customer_name }}</p>
                        @if($invoice->customer_gstin)
                        <p class="text-xs text-gray-400 font-mono">{{ $invoice->customer_gstin }}</p>
                        @endif
                    </td>
                    <td class="table-td text-gray-500">{{ $invoice->invoice_date->format('d M Y') }}</td>
                    <td class="table-td {{ $invoice->isOverdue() ? 'text-red-600 font-medium' : 'text-gray-500' }}">
                        {{ $invoice->due_date ? $invoice->due_date->format('d M Y') : '—' }}
                    </td>
                    <td class="table-td text-right font-semibold">₹{{ number_format($invoice->total_amount, 2) }}</td>
                    <td class="table-td text-right {{ $invoice->amount_due > 0 ? 'text-orange-600 font-semibold' : 'text-gray-400' }}">
                        ₹{{ number_format($invoice->amount_due, 2) }}
                    </td>
                    <td class="table-td">
                        <span class="badge-{{ $invoice->status_badge_color }}">{{ ucfirst($invoice->status) }}</span>
                    </td>
                    <td class="table-td text-right">
                        <div class="flex items-center justify-end gap-1">
                            <a href="{{ route('invoices.show', $invoice) }}"     title="View"     class="p-1.5 text-gray-400 hover:text-indigo-600 rounded">
                                <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>
                            <a href="{{ route('invoices.download', $invoice) }}" title="Download" class="p-1.5 text-gray-400 hover:text-green-600 rounded">
                                <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 10v6m0 0l-3-3m3 3l3-3m2 8H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"/></svg>
                            </a>
                            @if(!in_array($invoice->status, ['paid','cancelled']))
                            <a href="{{ route('invoices.edit', $invoice) }}"     title="Edit"     class="p-1.5 text-gray-400 hover:text-blue-600 rounded">
                                <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="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"/></svg>
                            </a>
                            @endif
                        </div>
                    </td>
                </tr>
                @empty
                <tr>
                    <td colspan="8" class="py-16 text-center text-gray-400">
                        <svg class="w-12 h-12 mx-auto mb-3 text-gray-200" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="1" 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>
                        <p class="font-medium">No invoices found</p>
                        <p class="text-sm mt-1"><a href="{{ route('invoices.create') }}" class="text-indigo-600 hover:underline">Create your first invoice</a></p>
                    </td>
                </tr>
                @endforelse
            </tbody>
        </table>
    </div>

    @if($invoices->hasPages())
    <div class="p-4 border-t border-gray-100">
        {{ $invoices->links() }}
    </div>
    @endif
</div>
@endsection