@extends('layouts.app')
@section('titulo', 'Productos')

@section('contenido')

<style>
/* Estilos principales para replicar el diseño de la imagen con líneas verticales */
.table-premium {
    border-collapse: collapse;
    width: 100%;
}

.table-premium thead {
    background: #f8fafc;
    text-transform: uppercase;
    font-size: .7rem;
    color: #64748b;
    letter-spacing: 0.05em;
}

.table-premium thead th {
    padding: 10px 12px;
    border: 1px solid #e2e8f0;
    font-weight: 600;
    text-align: left;
}

.table-premium tbody td {
    padding: 10px 12px;
    border: 1px solid #e2e8f0;
    vertical-align: middle;
}

.table-premium tbody tr:hover {
    background: #f8fafc;
}

/* Estilos para el contenedor de la tabla */
.table-container {
    background: white;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

/* Header */
.header-section {
    background: white;
    border-radius: 12px;
    padding: 16px 20px;
    border: 1px solid #e5e7eb;
    margin-bottom: 20px;
}

.header-icon {
    width: 36px;
    height: 36px;
    background: #dbeafe;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
}

.header-icon svg {
    width: 18px;
    height: 18px;
}

/* Filtros */
.filters-section {
    background: white;
    border-radius: 12px;
    padding: 16px 20px;
    border: 1px solid #e5e7eb;
    margin-bottom: 20px;
}

.search-input {
    position: relative;
    flex: 1;
}

.search-input input {
    width: 100%;
    padding: 8px 16px 8px 36px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.875rem;
    background: #fafbfc;
}

.search-input input:focus {
    outline: none;
    border-color: #2563eb;
    background: white;
}

.search-input .search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    width: 16px;
    height: 16px;
}

.filter-select {
    padding: 8px 12px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.875rem;
    background: #fafbfc;
    color: #1e293b;
}

.filter-select:focus {
    outline: none;
    border-color: #2563eb;
}

.btn-filter {
    background: #0f172a;
    color: white;
    padding: 8px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
}

.btn-filter:hover {
    background: #1e293b;
}

.btn-new {
    background: #2563eb;
    color: white;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: none;
    text-decoration: none;
}

.btn-new:hover {
    background: #1d4ed8;
    color: white;
}

.btn-new svg {
    width: 16px;
    height: 16px;
}

/* Badges */
.stock-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    min-width: 28px;
}

.stock-badge-low {
    background: #fee2e2;
    color: #991b1b;
}

.stock-badge-normal {
    background: #dbeafe;
    color: #1e40af;
}

.category-badge {
    display: inline-block;
    padding: 2px 10px;
    background: #f1f5f9;
    border-radius: 12px;
    font-size: 0.7rem;
    color: #475569;
    font-weight: 500;
}

.rx-badge {
    display: inline-block;
    background: #fee2e2;
    color: #991b1b;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0px 4px;
    border-radius: 3px;
    margin-left: 4px;
}

/* Acciones */
.action-btn {
    padding: 4px 6px;
    border-radius: 6px;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #94a3b8;
    display: inline-block;
}

.action-btn:hover {
    background: #f1f5f9;
    color: #2563eb;
}

.action-btn-edit:hover {
    background: #dbeafe;
    color: #2563eb;
}

.action-btn-stock:hover {
    background: #d1fae5;
    color: #059669;
}

/* Paginación */
.pagination-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-top: 1px solid #f1f5f9;
    font-size: 0.8rem;
    color: #64748b;
}

.pagination-info select {
    padding: 2px 6px;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    font-size: 0.8rem;
}

.breadcrumb {
    font-size: 0.7rem;
    color: #94a3b8;
    margin-bottom: 2px;
}

.filters-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.filters-row .search-input {
    flex: 1;
    min-width: 200px;
}

@media (max-width: 768px) {
    .filters-row .search-input {
        flex: 1 1 100%;
    }
}

.product-code {
    font-size: 0.7rem;
    color: #94a3b8;
    margin-top: 1px;
}

.product-name {
    font-weight: 600;
    color: #0f172a;
    font-size: 0.9rem;
}

.price-text {
    font-weight: 600;
    color: #0f172a;
}

.status-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

.status-active {
    background: #dcfce7;
    color: #166534;
}

/* Anchos fijos para las columnas */
.col-codigo { width: 15%; }
.col-nombre { width: 25%; }
.col-categoria { width: 15%; }
.col-unidad { width: 8%; }
.col-precio { width: 10%; }
.col-stock { width: 8%; }
.col-estado { width: 9%; }
.col-acciones { width: 10%; }
</style>

<div class="max-w-[1650px] mx-auto space-y-4 px-4 sm:px-6">

    {{-- HEADER --}}
    <div class="header-section">
        <div class="flex flex-wrap items-center justify-between gap-3">
            <div>
                <div class="breadcrumb">Logística & Inventario / Catálogo Maestro</div>
                <div class="flex items-center gap-3 mt-1">
                    <div class="header-icon">
                        <svg fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
                            <path stroke-linecap="round" stroke-linejoin="round" d="M20 7L12 3 4 7m16 0v10l-8 4m8-14-8 4m0 10-8-4V7m8 14V11M4 7l8 4"/>
                        </svg>
                    </div>
                    <h1 class="text-xl font-bold text-slate-800">Productos</h1>
                </div>
            </div>

            <a href="{{ route('productos.create') }}" class="btn-new">
                <svg fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2.5">
                    <path stroke-linecap="round" stroke-linejoin="round" d="M12 4v16m8-8H4"/>
                </svg>
                Nuevo producto
            </a>
        </div>
    </div>

    {{-- FILTROS --}}
    <form method="GET" class="filters-section">
        <div class="filters-row">
            <div class="search-input">
                <svg class="search-icon" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
                    <path stroke-linecap="round" stroke-linejoin="round" d="M21 21l-5.197-5.197m0 0A7.5 7.5 0 105.196 5.196a7.5 7.5 0 0010.607 10.607z"/>
                </svg>
                <input type="text" name="q" value="{{ $buscar }}" placeholder="Buscar por nombre, código o principio activo">
            </div>

            <select name="categoria" class="filter-select">
                <option value="">Todas las categorías</option>
                @foreach($categorias as $cat)
                    <option value="{{ $cat->id }}" @selected($categoriaId==$cat->id)>
                        {{ $cat->nombre }}
                    </option>
                @endforeach
            </select>

            <select name="filtro" class="filter-select">
                <option value="">Todos</option>
                <option value="stock_bajo" @selected($filtro=='stock_bajo')>Stock bajo</option>
                <option value="por_vencer" @selected($filtro=='por_vencer')>Por vencer</option>
                <option value="vencido" @selected($filtro=='vencido')>Vencidos</option>
            </select>

            <button type="submit" class="btn-filter">Filtrar</button>
        </div>
    </form>

    {{-- TABLA --}}
    <div class="table-container">
        <div class="overflow-x-auto">
            <table class="table-premium">
                <thead>
                    <tr>
                        <th class="col-codigo">CÓDIGO</th>
                        <th class="col-nombre">NOMBRE</th>
                        <th class="col-categoria">CATEGORÍA</th>
                        <th class="col-unidad">UNIDAD</th>
                        <th class="col-precio">P. VENTA</th>
                        <th class="col-stock">STOCK</th>
                        <th class="col-estado">ESTADO</th>
                        <th class="col-acciones">ACCIONES</th>
                    </tr>
                </thead>
                <tbody>
                    @forelse($productos as $p)
                        @php
                            $stockTotal = $p->stocks->sum('stock');
                            $stockMinimo = $p->stocks->sum('stock_minimo');
                        @endphp

                        <tr>
                            <td class="col-codigo">
                                <span style="font-weight:500;color:#0f172a;font-size:0.75rem;">
                                    {{ $p->codigo_barras }}
                                </span>
                            </td>

                            <td class="col-nombre">
                                <div class="product-name">
                                    {{ $p->nombre }}
                                    @if($p->requiere_receta)
                                        <span class="rx-badge">Rx</span>
                                    @endif
                                </div>
                                <div class="product-code">
                                    {{ $p->principio_activo }}
                                    @if($p->concentracion)
                                        - {{ $p->concentracion }}
                                    @endif
                                </div>
                            </td>

                            <td class="col-categoria">
                                <span class="category-badge">
                                    {{ $p->categoria?->nombre ?? '-' }}
                                </span>
                            </td>

                            <td class="col-unidad text-sm text-slate-600">
                                UNIDAD
                            </td>

                            <td class="col-precio price-text text-sm">
                                S/ {{ number_format($p->precio_venta,2) }}
                            </td>

                            <td class="col-stock">
                                @if($stockTotal <= $stockMinimo)
                                    <span class="stock-badge stock-badge-low">
                                        {{ $stockTotal }}
                                    </span>
                                @else
                                    <span class="stock-badge stock-badge-normal">
                                        {{ $stockTotal }}
                                    </span>
                                @endif
                            </td>

                            <td class="col-estado">
                                <span class="status-badge status-active">
                                    Activa
                                </span>
                            </td>

                            <td class="col-acciones">
                                <div class="flex gap-1">
                                    <a href="{{ route('productos.edit', $p) }}"
                                       class="action-btn action-btn-edit"
                                       title="Editar producto">
                                        <svg class="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
                                            <path stroke-linecap="round" stroke-linejoin="round"
                                                  d="M16.862 4.487l1.687-1.688a1.875 1.875 0 112.652 2.652L10.582 16.07a4.5 4.5 0 01-1.897 1.13L6 18l.8-2.685a4.5 4.5 0 011.13-1.897l8.932-8.931z"/>
                                        </svg>
                                    </a>

                                    <a href="{{ route('stock.producto', $p) }}"
                                       class="action-btn action-btn-stock"
                                       title="Gestionar stock">
                                        <svg xmlns="http://www.w3.org/2000/svg"
                                             class="w-4 h-4"
                                             fill="none"
                                             viewBox="0 0 24 24"
                                             stroke="currentColor"
                                             stroke-width="2">
                                            <path stroke-linecap="round"
                                                  stroke-linejoin="round"
                                                  d="M20 7L12 3 4 7m16 0v10l-8 4m8-14-8 4m0 10-8-4V7m8 14V11M4 7l8 4"/>
                                        </svg>
                                    </a>
                                </div>
                            </td>
                        </tr>
                    @empty
                        <tr>
                            <td colspan="8" class="text-center py-10 text-slate-400">
                                No existen productos.
                            </td>
                        </tr>
                    @endforelse
                </tbody>
            </table>
        </div>

        {{-- PAGINACIÓN --}}
        @if($productos->hasPages())
            <div class="pagination-bar">
                <div class="flex items-center gap-3">
                    <span>Mostrando {{ $productos->firstItem() ?? 0 }} a {{ $productos->lastItem() ?? 0 }} de {{ $productos->total() }} registros</span>
                    <select onchange="window.location.href = this.value">
                        @foreach([10, 25, 50, 100] as $perPage)
                            <option value="{{ request()->fullUrlWithQuery(['per_page' => $perPage]) }}"
                                    @selected(request('per_page', 10) == $perPage)>
                                {{ $perPage }}
                            </option>
                        @endforeach
                    </select>
                </div>
                <div>
                    {{ $productos->links() }}
                </div>
            </div>
        @endif
    </div>
</div>

@endsection