@extends('layouts.admin')

@section('title', 'Edit Invoice')

@section('content')
<div class="container mx-auto px-4 py-6">
    <h1 class="text-xl sm:text-2xl lg:text-3xl font-bold text-gray-900 mb-4 sm:mb-6">Edit Invoice</h1>

    @if(session('success'))
        <div class="bg-green-100 border border-green-400 text-green-700 px-4 py-3 rounded mb-4" role="alert">
            <span class="block sm:inline">{{ session('success') }}</span>
        </div>
    @endif

    @isset($invoice)
    <form method="POST" action="{{ route('finance.settlements.invoices.update', $invoice) }}" class="bg-white rounded-lg shadow-md p-3 sm:p-4 lg:p-6 space-y-4">
        @csrf
        @method('PUT')

        <div class="grid grid-cols-1 sm:grid-cols-2 gap-3 sm:gap-4">
            <div>
                <label class="block text-xs sm:text-sm font-medium text-gray-700 mb-1">Merchant</label>
                <select name="merchant_id" class="w-full border border-gray-300 rounded-md px-2 sm:px-3 py-1.5 sm:py-2 text-xs sm:text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
                    @foreach(($merchants ?? []) as $merchant)
                        <option value="{{ $merchant->id }}" {{ $invoice->merchant_id == $merchant->id ? 'selected' : '' }}>
                            {{ $merchant->name }} ({{ $merchant->company_name }})
                        </option>
                    @endforeach
                </select>
            </div>
            <div>
                <label class="block text-xs sm:text-sm font-medium text-gray-700 mb-1">Status</label>
                <select name="status" class="w-full border border-gray-300 rounded-md px-2 sm:px-3 py-1.5 sm:py-2 text-xs sm:text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
                    @foreach(['draft','sent','paid','overdue','cancelled'] as $st)
                        <option value="{{ $st }}" {{ $invoice->status === $st ? 'selected' : '' }}>{{ ucfirst($st) }}</option>
                    @endforeach
                </select>
            </div>
        </div>

        <div class="grid grid-cols-1 sm:grid-cols-3 gap-4">
            <div>
                <label class="block text-xs sm:text-sm font-medium text-gray-700 mb-1">Invoice Date</label>
                <input type="date" name="invoice_date" value="{{ old('invoice_date', optional($invoice->invoice_date)->format('Y-m-d')) }}" class="w-full border border-gray-300 rounded-md px-2 sm:px-3 py-1.5 sm:py-2 text-xs sm:text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
            </div>
            <div>
                <label class="block text-xs sm:text-sm font-medium text-gray-700 mb-1">Due Date</label>
                <input type="date" name="due_date" value="{{ old('due_date', optional($invoice->due_date)->format('Y-m-d')) }}" class="w-full border border-gray-300 rounded-md px-2 sm:px-3 py-1.5 sm:py-2 text-xs sm:text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
            </div>
            <div>
                <label class="block text-xs sm:text-sm font-medium text-gray-700 mb-1">Subtotal</label>
                <input type="number" step="0.01" name="subtotal" value="{{ old('subtotal', $invoice->subtotal) }}" class="w-full border border-gray-300 rounded-md px-2 sm:px-3 py-1.5 sm:py-2 text-xs sm:text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
            </div>
        </div>

        <div class="grid grid-cols-1 sm:grid-cols-3 gap-4">
            <div>
                <label class="block text-xs sm:text-sm font-medium text-gray-700 mb-1">Tax Amount</label>
                <input type="number" step="0.01" name="tax_amount" value="{{ old('tax_amount', $invoice->tax_amount) }}" class="w-full border border-gray-300 rounded-md px-2 sm:px-3 py-1.5 sm:py-2 text-xs sm:text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
            </div>
            <div>
                <label class="block text-xs sm:text-sm font-medium text-gray-700 mb-1">Discount Amount</label>
                <input type="number" step="0.01" name="discount_amount" value="{{ old('discount_amount', $invoice->discount_amount) }}" class="w-full border border-gray-300 rounded-md px-2 sm:px-3 py-1.5 sm:py-2 text-xs sm:text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
            </div>
            <div>
                <label class="block text-xs sm:text-sm font-medium text-gray-700 mb-1">Notes</label>
                <input type="text" name="notes" value="{{ old('notes', $invoice->notes) }}" class="w-full border border-gray-300 rounded-md px-2 sm:px-3 py-1.5 sm:py-2 text-xs sm:text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
            </div>
        </div>

        <div class="flex items-center justify-end gap-2 sm:gap-3">
<a href="{{ route('finance.settlements.invoices.index') }}" class="px-3 sm:px-4 py-2 border border-gray-300 rounded-md text-xs sm:text-sm font-semibold text-gray-700 hover:bg-gray-50 transition">Cancel</a>
            <button type="submit" class="bg-blue-600 text-white px-3 sm:px-4 py-2 rounded-md text-xs sm:text-sm font-semibold hover:bg-blue-700 transition">Update</button>
        </div>
    </form>
    @else
        <div class="bg-yellow-50 border border-yellow-200 text-yellow-800 px-4 py-3 rounded">Invoice data not available.</div>
    @endisset
</div>
@endsection