@extends('layouts.app')

@section('title', 'Low Stock Alert')

@section('content')
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
    <div class="sm:flex sm:items-center justify-between mb-6">
        <div>
            <h1 class="text-3xl font-bold tracking-tight text-gray-900 dark:text-white">Low Stock Alert</h1>
            <p class="mt-2 text-sm text-gray-700 dark:text-gray-300">Items below reorder point - action required</p>
        </div>
        <div class="flex gap-2 mt-4 sm:mt-0">
            <a href="{{ route('inventory.index') }}" class="inline-flex items-center px-4 py-2 bg-gray-600 text-white rounded-md hover:bg-gray-700 dark:bg-gray-700 dark:hover:bg-gray-600">
                <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 19l-7-7m0 0l7-7m-7 7h18"/>
                </svg>
                Back to Inventory
            </a>
        </div>
    </div>

    <div class="bg-white dark:bg-gray-800 shadow rounded-lg overflow-hidden">
        @if($inventory->count() > 0)
            <!-- Alert Banner -->
            <div class="bg-red-50 dark:bg-red-900/30 border-l-4 border-red-400 dark:border-red-500 p-4">
                <div class="flex">
                    <div class="flex-shrink-0">
                        <svg class="h-5 w-5 text-red-400 dark:text-red-300" fill="currentColor" viewBox="0 0 20 20">
                            <path fill-rule="evenodd" d="M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z" clip-rule="evenodd"/>
                        </svg>
                    </div>
                    <div class="ml-3">
                        <p class="text-sm text-red-700 dark:text-red-300">
                            <strong>{{ $inventory->total() }} items</strong> are below their reorder point. Consider creating purchase orders to replenish stock.
                        </p>
                    </div>
                </div>
            </div>

            <table class="min-w-full divide-y divide-gray-200 dark:divide-gray-700">
                <thead class="bg-gray-50 dark:bg-gray-700">
                    <tr>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">SKU</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Product Name</th>
                        <th class="px-6 py-3 text-center text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Current Stock</th>
                        <th class="px-6 py-3 text-center text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Reorder Point</th>
                        <th class="px-6 py-3 text-center text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Shortage</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Location</th>
                        <th class="px-6 py-3 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Actions</th>
                    </tr>
                </thead>
                <tbody class="bg-white dark:bg-gray-800 divide-y divide-gray-200 dark:divide-gray-700">
                    @foreach($inventory as $item)
                        <tr class="bg-red-50 dark:bg-red-900/20 hover:bg-red-100 dark:hover:bg-red-900/30">
                            <td class="px-6 py-4 whitespace-nowrap">
                                <div class="text-sm font-medium text-gray-900 dark:text-white">{{ $item->sku }}</div>
                            </td>
                            <td class="px-6 py-4">
                                <div class="text-sm text-gray-900 dark:text-white">{{ $item->product_name }}</div>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-center">
                                <span class="text-xl font-bold text-red-600 dark:text-red-400">
                                    {{ $item->quantity }}
                                </span>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-center text-sm text-gray-500 dark:text-gray-400">
                                {{ $item->reorder_point }}
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-center">
                                <span class="text-sm font-medium text-red-600 dark:text-red-400">
                                    -{{ $item->reorder_point - $item->quantity }}
                                </span>
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500 dark:text-gray-400">
                                {{ $item->location ?? '-' }}
                            </td>
                            <td class="px-6 py-4 whitespace-nowrap text-right text-sm font-medium">
                                <a href="{{ route('purchase-orders.create') }}?sku={{ $item->sku }}" class="text-indigo-600 dark:text-indigo-400 hover:text-indigo-900 dark:hover:text-indigo-300">
                                    Create PO
                                </a>
                            </td>
                        </tr>
                    @endforeach
                </tbody>
            </table>

            <div class="px-6 py-4 bg-gray-50 dark:bg-gray-700">
                {{ $inventory->links() }}
            </div>
        @else
            <div class="text-center py-12">
                <svg class="mx-auto h-12 w-12 text-green-400 dark:text-green-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"/>
                </svg>
                <h3 class="mt-2 text-sm font-medium text-gray-900 dark:text-white">All stock levels are healthy!</h3>
                <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">No items are currently below their reorder point.</p>
            </div>
        @endif
    </div>
</div>
@endsection