@extends('layouts.app')

@section('title', isset($product) ? 'Edit Product' : 'Add Product')

@section('content')
<div class="bg-gray-50 min-h-screen py-8">
    <div class="container mx-auto px-4 max-w-4xl">
        <div class="mb-8">
            <a href="{{ route('supplier.products') }}" class="text-blue-600 hover:underline text-sm">&larr; Back to Products</a>
            <h1 class="text-3xl font-bold text-gray-900 mt-2">{{ isset($product) ? 'Edit Product' : 'Add New Product' }}</h1>
        </div>

        @if($errors->any())
            <div class="bg-red-50 text-red-600 px-4 py-3 rounded-lg mb-6">
                <ul class="list-disc list-inside">
                    @foreach($errors->all() as $error)
                        <li>{{ $error }}</li>
                    @endforeach
                </ul>
            </div>
        @endif

        <form action="{{ isset($product) ? route('supplier.products.update', $product->id) : route('supplier.products.store') }}" method="POST" enctype="multipart/form-data">
            @csrf
            @if(isset($product))
                @method('PUT')
            @endif

            <div class="bg-white rounded-xl shadow-sm p-6 mb-6">
                <h2 class="font-semibold text-lg mb-4">Basic Information</h2>
                
                <div class="grid md:grid-cols-2 gap-6">
                    <div class="md:col-span-2">
                        <label class="block text-sm font-medium text-gray-700 mb-1">Product Name *</label>
                        <input type="text" name="name" value="{{ old('name', $product->name ?? '') }}" required
                            class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
                            placeholder="Enter product name">
                    </div>

                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">SKU *</label>
                        <input type="text" name="sku" value="{{ old('sku', $product->sku ?? '') }}" required
                            class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
                            placeholder="e.g., PPE-001">
                    </div>

                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Category *</label>
                        <select name="category_id" required class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                            <option value="">Select Category</option>
                            @foreach($categories as $category)
                                <option value="{{ $category->id }}" {{ old('category_id', $product->category_id ?? '') == $category->id ? 'selected' : '' }}>
                                    {{ $category->name }}
                                </option>
                            @endforeach
                        </select>
                    </div>

                    <div class="md:col-span-2">
                        <label class="block text-sm font-medium text-gray-700 mb-1">Description</label>
                        <textarea name="description" rows="4"
                            class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
                            placeholder="Describe your product...">{{ old('description', $product->description ?? '') }}</textarea>
                    </div>
                </div>
            </div>

            <div class="bg-white rounded-xl shadow-sm p-6 mb-6">
                <h2 class="font-semibold text-lg mb-4">Pricing & Inventory</h2>
                
                <div class="grid md:grid-cols-3 gap-6">
                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Price (ZAR) *</label>
                        <input type="number" name="price" value="{{ old('price', $product->price ?? '') }}" required step="0.01" min="0"
                            class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
                            placeholder="0.00">
                    </div>

                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Compare Price (Optional)</label>
                        <input type="number" name="compare_price" value="{{ old('compare_price', $product->compare_price ?? '') }}" step="0.01" min="0"
                            class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
                            placeholder="Original price for discount display">
                    </div>

                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Stock Quantity *</label>
                        <input type="number" name="stock_quantity" value="{{ old('stock_quantity', $product->stock_quantity ?? 0) }}" required min="0"
                            class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
                    </div>

                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Unit</label>
                        <select name="unit" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                            <option value="piece" {{ old('unit', $product->unit ?? '') == 'piece' ? 'selected' : '' }}>Piece</option>
                            <option value="box" {{ old('unit', $product->unit ?? '') == 'box' ? 'selected' : '' }}>Box</option>
                            <option value="pack" {{ old('unit', $product->unit ?? '') == 'pack' ? 'selected' : '' }}>Pack</option>
                            <option value="kg" {{ old('unit', $product->unit ?? '') == 'kg' ? 'selected' : '' }}>Kilogram</option>
                            <option value="liter" {{ old('unit', $product->unit ?? '') == 'liter' ? 'selected' : '' }}>Liter</option>
                            <option value="meter" {{ old('unit', $product->unit ?? '') == 'meter' ? 'selected' : '' }}>Meter</option>
                        </select>
                    </div>

                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Min Order Quantity</label>
                        <input type="number" name="min_order_quantity" value="{{ old('min_order_quantity', $product->min_order_quantity ?? 1) }}" min="1"
                            class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
                    </div>

                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Weight (kg)</label>
                        <input type="number" name="weight" value="{{ old('weight', $product->weight ?? '') }}" step="0.01" min="0"
                            class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
                            placeholder="For delivery calculation">
                    </div>
                </div>
            </div>

            <div class="bg-white rounded-xl shadow-sm p-6 mb-6">
                <h2 class="font-semibold text-lg mb-4">Product Image</h2>
                
                <div>
                    <label class="block text-sm font-medium text-gray-700 mb-1">Image URL</label>
                    <input type="url" name="image_url" value="{{ old('image_url', $product->image_url ?? '') }}"
                        class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
                        placeholder="https://example.com/image.jpg">
                    <p class="text-sm text-gray-500 mt-1">Enter a URL to your product image</p>
                </div>
            </div>

            <div class="bg-white rounded-xl shadow-sm p-6 mb-6">
                <h2 class="font-semibold text-lg mb-4">Settings</h2>
                
                <div class="space-y-4">
                    <label class="flex items-center">
                        <input type="checkbox" name="is_active" value="1" {{ old('is_active', $product->is_active ?? true) ? 'checked' : '' }}
                            class="w-4 h-4 text-blue-600 border-gray-300 rounded focus:ring-blue-500">
                        <span class="ml-2 text-gray-700">Active (visible to customers)</span>
                    </label>

                    <label class="flex items-center">
                        <input type="checkbox" name="is_featured" value="1" {{ old('is_featured', $product->is_featured ?? false) ? 'checked' : '' }}
                            class="w-4 h-4 text-blue-600 border-gray-300 rounded focus:ring-blue-500">
                        <span class="ml-2 text-gray-700">Featured product</span>
                    </label>
                </div>
            </div>

            <div class="flex justify-end gap-4">
                <a href="{{ route('supplier.products') }}" class="px-6 py-2 border border-gray-300 rounded-lg hover:bg-gray-50 transition">
                    Cancel
                </a>
                <button type="submit" class="px-6 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition">
                    {{ isset($product) ? 'Update Product' : 'Create Product' }}
                </button>
            </div>
        </form>
    </div>
</div>
@endsection