@extends('layouts.app')

@section('title', 'Inventory')

@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">Inventory</h1>
            <p class="mt-2 text-sm text-gray-700 dark:text-gray-300">Current stock levels for all products</p>
        </div>
        <div class="flex gap-2 mt-4 sm:mt-0">
            @if($lowStockCount > 0)
                <a href="{{ route('inventory.low-stock') }}" class="inline-flex items-center px-4 py-2 bg-red-600 text-white rounded-md hover:bg-red-700 dark:bg-red-700 dark:hover:bg-red-800">
                    <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="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"/>
                    </svg>
                    Low Stock ({{ $lowStockCount }})
                </a>
            @endif
            <a href="{{ route('inventory.movements') }}" 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="M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2"/>
                </svg>
                Movements
            </a>
        </div>
    </div>

    <!-- Info Alert -->
    <div class="mb-6 bg-blue-50 dark:bg-blue-900/30 border-l-4 border-blue-400 dark:border-blue-500 p-4">
        <div class="flex">
            <div class="flex-shrink-0">
                <svg class="h-5 w-5 text-blue-400 dark:text-blue-300" fill="currentColor" viewBox="0 0 20 20">
                    <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"/>
                </svg>
            </div>
            <div class="ml-3">
                <p class="text-sm text-blue-700 dark:text-blue-300">
                    <strong>Tip:</strong> Click the <svg class="w-4 h-4 inline" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15.232 5.232l3.536 3.536m-2.036-5.036a2.5 2.5 0 113.536 3.536L6.5 21.036H3v-3.572L16.732 3.732z"/></svg> icon next to reorder points to adjust them. Set higher reorder points for fast-moving products and lower for slow-moving items.
                </p>
            </div>
        </div>
    </div>

    <!-- Search -->
    <div class="mb-6">
        <form method="GET" action="{{ route('inventory.index') }}" class="flex gap-2">
            <input type="text" name="search" value="{{ $search ?? '' }}" placeholder="Search by SKU or product name..." class="flex-1 px-4 py-2 bg-white dark:bg-gray-700 text-gray-900 dark:text-white border border-gray-300 dark:border-gray-600 rounded-md focus:ring-indigo-500 focus:border-indigo-500 dark:focus:ring-offset-gray-800 placeholder:text-gray-500 dark:placeholder:text-gray-400">
            <button type="submit" class="px-4 py-2 bg-indigo-600 text-white rounded-md hover:bg-indigo-700 dark:bg-indigo-700 dark:hover:bg-indigo-600 dark:focus:ring-offset-gray-800">Search</button>
            @if($search)
                <a href="{{ route('inventory.index') }}" class="px-4 py-2 bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 rounded-md hover:bg-gray-300 dark:hover:bg-gray-600">Clear</a>
            @endif
        </form>
    </div>

    <div class="bg-white dark:bg-gray-800 shadow rounded-lg overflow-hidden">
        @if($inventory->count() > 0)
            <div class="overflow-x-auto">
            <table class="min-w-full divide-y divide-gray-200 dark:divide-gray-700">
                <thead class="bg-gray-50 dark:bg-gray-700">
                    <tr>
                        <th class="px-3 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">SKU</th>
                        <th class="px-3 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Product Name</th>
                        <th class="px-3 py-3 text-center text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Qty</th>
                        <th class="px-3 py-3 text-center text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Reorder</th>
                        <th class="px-3 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Warehouse</th>
                        <th class="px-3 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Location</th>
                        <th class="px-3 py-3 text-center text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">Status</th>
                    </tr>
                </thead>
                <tbody class="bg-white dark:bg-gray-800 divide-y divide-gray-200 dark:divide-gray-700">
                    @foreach($inventory as $item)
                        <tr class="{{ $item->quantity < $item->reorder_point ? 'bg-red-50 dark:bg-red-900/20' : 'hover:bg-gray-50 dark:hover:bg-gray-700/50' }}">
                            <td class="px-3 py-3 whitespace-nowrap">
                                <div class="text-sm font-medium text-gray-900 dark:text-white">{{ $item->sku }}</div>
                            </td>
                            <td class="px-3 py-3">
                                <div class="text-sm text-gray-900 dark:text-white">{{ $item->product_name }}</div>
                            </td>
                            <td class="px-3 py-3 whitespace-nowrap text-center">
                                <span class="text-lg font-bold {{ $item->quantity < $item->reorder_point ? 'text-red-600 dark:text-red-400' : 'text-gray-900 dark:text-white' }}">
                                    {{ $item->quantity }}
                                </span>
                            </td>
                            <td class="px-3 py-3 whitespace-nowrap text-center">
                                <div x-data="{ editing: false, value: {{ $item->reorder_point }}, saving: false }">
                                    <div x-show="!editing" class="flex items-center justify-center gap-2">
                                        <span class="text-sm text-gray-900 dark:text-white font-medium" x-text="value"></span>
                                        <button @click="editing = true" class="text-indigo-600 dark:text-indigo-400 hover:text-indigo-900 dark:hover:text-indigo-300">
                                            <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="M15.232 5.232l3.536 3.536m-2.036-5.036a2.5 2.5 0 113.536 3.536L6.5 21.036H3v-3.572L16.732 3.732z"/>
                                            </svg>
                                        </button>
                                    </div>
                                    <div x-show="editing" class="flex items-center justify-center gap-2">
                                        <input type="number" x-model="value" min="0"
                                               class="w-20 px-2 py-1 text-sm bg-white dark:bg-gray-700 text-gray-900 dark:text-white border border-gray-300 dark:border-gray-600 rounded focus:ring-indigo-500 focus:border-indigo-500 dark:focus:ring-offset-gray-800"
                                               @keydown.enter="
                                                   saving = true;
                                                   fetch('{{ route('inventory.update-reorder-point', $item->id) }}', {
                                                       method: 'POST',
                                                       headers: {
                                                           'Content-Type': 'application/json',
                                                           'X-CSRF-TOKEN': '{{ csrf_token() }}'
                                                       },
                                                       body: JSON.stringify({ reorder_point: value })
                                                   })
                                                   .then(res => res.json())
                                                   .then(data => {
                                                       if (data.success) {
                                                           editing = false;
                                                           alert('Reorder point updated successfully');
                                                       } else {
                                                           alert('Failed to update: ' + data.message);
                                                       }
                                                       saving = false;
                                                   })
                                                   .catch(err => {
                                                       alert('Error updating reorder point');
                                                       saving = false;
                                                   });
                                               "
                                               @keydown.escape="editing = false; value = {{ $item->reorder_point }};">
                                        <button @click="
                                            saving = true;
                                            fetch('{{ route('inventory.update-reorder-point', $item->id) }}', {
                                                method: 'POST',
                                                headers: {
                                                    'Content-Type': 'application/json',
                                                    'X-CSRF-TOKEN': '{{ csrf_token() }}'
                                                },
                                                body: JSON.stringify({ reorder_point: value })
                                            })
                                            .then(res => res.json())
                                            .then(data => {
                                                if (data.success) {
                                                    editing = false;
                                                    alert('Reorder point updated successfully');
                                                } else {
                                                    alert('Failed to update: ' + data.message);
                                                }
                                                saving = false;
                                            })
                                            .catch(err => {
                                                alert('Error updating reorder point');
                                                saving = false;
                                            });
                                        " :disabled="saving" class="text-green-600 dark:text-green-400 hover:text-green-900 dark:hover:text-green-300 disabled:opacity-50">
                                            <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"/>
                                            </svg>
                                        </button>
                                        <button @click="editing = false; value = {{ $item->reorder_point }};" class="text-red-600 dark:text-red-400 hover:text-red-900 dark:hover:text-red-300">
                                            <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"/>
                                            </svg>
                                        </button>
                                    </div>
                                </div>
                            </td>
                            <td class="px-3 py-3 whitespace-nowrap text-sm text-gray-900 dark:text-white">
                                @if($item->warehouse_name)
                                    <div>{{ $item->warehouse_name }}</div>
                                    <div class="text-xs text-gray-500 dark:text-gray-400">{{ $item->warehouse_code }}</div>
                                @else
                                    <span class="text-gray-400 dark:text-gray-500">-</span>
                                @endif
                            </td>
                            <td class="px-3 py-3 whitespace-nowrap text-sm text-gray-500 dark:text-gray-400">
                                {{ $item->location ?? '-' }}
                            </td>
                            <td class="px-3 py-3 whitespace-nowrap text-center">
                                @if($item->quantity < $item->reorder_point)
                                    <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-red-100 dark:bg-red-900/50 text-red-800 dark:text-red-300">
                                        Low
                                    </span>
                                @elseif($item->quantity == 0)
                                    <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-gray-100 dark:bg-gray-700 text-gray-800 dark:text-gray-300">
                                        Out
                                    </span>
                                @else
                                    <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-green-100 dark:bg-green-900/50 text-green-800 dark:text-green-300">
                                        OK
                                    </span>
                                @endif
                            </td>
                        </tr>
                    @endforeach
                </tbody>
            </table>
            </div>

            <div class="px-6 py-4 bg-gray-50 dark:bg-gray-700">
                {{ $inventory->appends(['search' => $search])->links() }}
            </div>
        @else
            <div class="text-center py-12">
                <svg class="mx-auto h-12 w-12 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M20 7l-8-4-8 4m16 0l-8 4m8-4v10l-8 4m0-10L4 7m8 4v10M4 7v10l8 4"/>
                </svg>
                <h3 class="mt-2 text-sm font-medium text-gray-900 dark:text-white">No inventory items</h3>
                <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Inventory will be populated when you receive stock from purchase orders.</p>
            </div>
        @endif
    </div>
</div>
@endsection