@extends('layouts.admin')

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

@section('content')
<div class="row">
    <div class="col-md-8">
        <div class="card border-0 shadow-sm">
            <div class="card-header bg-light border-bottom">
                <h5 class="mb-0">{{ isset($product) ? 'Edit Product Information' : 'Product Details' }}</h5>
            </div>
            <div class="card-body">
                <form action="{{ isset($product) ? route('admin.products.update', $product) : route('admin.products.store') }}" method="POST" enctype="multipart/form-data">
                    @csrf
                    @if(isset($product)) @method('PUT') @endif

                    <!-- Product Name -->
                    <div class="mb-3">
                        <label for="name" class="form-label">Product Name <span class="text-danger">*</span></label>
                        <input type="text" class="form-control @error('name') is-invalid @enderror" id="name" name="name" value="{{ old('name', isset($product) ? $product->name : '') }}" required placeholder="Enter product name">
                        @error('name')
                            <div class="invalid-feedback d-block">{{ $message }}</div>
                        @enderror
                    </div>

                    <!-- Slug -->
                    <div class="mb-3">
                        <label for="slug" class="form-label">Product Slug <span class="text-danger">*</span></label>
                        <input type="text" class="form-control @error('slug') is-invalid @enderror" id="slug" name="slug" value="{{ old('slug', isset($product) ? $product->slug : '') }}" required placeholder="product-name">
                        @error('slug')
                            <div class="invalid-feedback d-block">{{ $message }}</div>
                        @enderror
                    </div>

                    <!-- Description -->
                    <div class="mb-3">
                        <label for="description" class="form-label">Description</label>
                        <textarea class="form-control @error('description') is-invalid @enderror" id="description" name="description" rows="4" placeholder="Enter product description">{{ old('description', isset($product) ? $product->description : '') }}</textarea>
                        @error('description')
                            <div class="invalid-feedback d-block">{{ $message }}</div>
                        @enderror
                    </div>

                    <!-- Price & Cost Row -->
                    <div class="row mb-3">
                        <div class="col-md-4">
                            <label for="price" class="form-label">Sale Price <span class="text-danger">*</span></label>
                            <div class="input-group">
                                <span class="input-group-text">{{ \App\Support\Currency::symbol() }}</span>
                                <input type="number" step="0.01" class="form-control @error('price') is-invalid @enderror" id="price" name="price" value="{{ old('price', isset($product) ? $product->price : '') }}" required placeholder="0.00">
                            </div>
                            @error('price')
                                <div class="invalid-feedback d-block">{{ $message }}</div>
                            @enderror
                        </div>
                        <div class="col-md-4">
                            <label for="compare_at_price" class="form-label">Compare at Price</label>
                            <div class="input-group">
                                <span class="input-group-text">{{ \App\Support\Currency::symbol() }}</span>
                                <input type="number" step="0.01" class="form-control @error('compare_at_price') is-invalid @enderror" id="compare_at_price" name="compare_at_price" value="{{ old('compare_at_price', isset($product) ? $product->compare_at_price : '') }}" placeholder="0.00">
                            </div>
                            <small class="text-muted">Original price before discount. Leave blank if no discount.</small>
                            @error('compare_at_price')
                                <div class="invalid-feedback d-block">{{ $message }}</div>
                            @enderror
                        </div>
                        <div class="col-md-4">
                            <label for="cost_price" class="form-label">Cost Price <span class="text-danger">*</span></label>
                            <div class="input-group">
                                <span class="input-group-text">{{ \App\Support\Currency::symbol() }}</span>
                                <input type="number" step="0.01" class="form-control @error('cost_price') is-invalid @enderror" id="cost_price" name="cost_price" value="{{ old('cost_price', isset($product) ? $product->cost_price : '') }}" required placeholder="0.00">
                            </div>
                            @error('cost_price')
                                <div class="invalid-feedback d-block">{{ $message }}</div>
                            @enderror
                        </div>
                    </div>

                    <!-- SKU & Product Code Row -->
                    <div class="row mb-3">
                        <div class="col-md-6">
                            <label for="sku" class="form-label">SKU <span class="text-danger">*</span></label>
                            <input type="text" class="form-control @error('sku') is-invalid @enderror" id="sku" name="sku" value="{{ old('sku', isset($product) ? $product->sku : '') }}" required placeholder="SKU123">
                            @error('sku')
                                <div class="invalid-feedback d-block">{{ $message }}</div>
                            @enderror
                        </div>
                        <div class="col-md-6">
                            <label for="product_code" class="form-label">Product Code</label>
                            <input type="text" class="form-control @error('product_code') is-invalid @enderror" id="product_code" name="product_code" value="{{ old('product_code', isset($product) ? $product->product_code : '') }}" placeholder="CODE-001">
                            @error('product_code')
                                <div class="invalid-feedback d-block">{{ $message }}</div>
                            @enderror
                        </div>
                    </div>

                    <!-- Category & Brand Row -->
                    <div class="row mb-3">
                        <div class="col-md-6">
                            <label for="category_id" class="form-label">Category <span class="text-danger">*</span></label>
                            <select class="form-select @error('category_id') is-invalid @enderror" id="category_id" name="category_id" required>
                                <option value="">-- Select Category --</option>
                                @foreach($categories as $category)
                                    <option value="{{ $category->id }}" {{ old('category_id', isset($product) ? $product->category_id : '') == $category->id ? 'selected' : '' }}>
                                        {{ $category->name }}
                                    </option>
                                @endforeach
                            </select>
                            @error('category_id')
                                <div class="invalid-feedback d-block">{{ $message }}</div>
                            @enderror
                        </div>
                        <div class="col-md-6">
                            <label for="brand_id" class="form-label">Brand <span class="text-danger">*</span></label>
                            <select class="form-select @error('brand_id') is-invalid @enderror" id="brand_id" name="brand_id" required>
                                <option value="">-- Select Brand --</option>
                                @foreach($brands as $brand)
                                    <option value="{{ $brand->id }}" {{ old('brand_id', isset($product) ? $product->brand_id : '') == $brand->id ? 'selected' : '' }}>
                                        {{ $brand->name }}
                                    </option>
                                @endforeach
                            </select>
                            @error('brand_id')
                                <div class="invalid-feedback d-block">{{ $message }}</div>
                            @enderror
                        </div>
                    </div>

                    <!-- Product Image -->
                    <div class="mb-3">
                        <label for="image" class="form-label">Product Image</label>
                        <input type="file" class="form-control @error('image') is-invalid @enderror" id="image" name="image" accept="image/jpeg,image/png,image/gif,image/webp" onchange="previewImage(event)">
                        <small class="form-text text-muted">Allowed formats: JPG, PNG, GIF, WebP. Max size: 2MB</small>
                        @error('image')
                            <div class="invalid-feedback d-block">{{ $message }}</div>
                        @enderror
                        @if(isset($product) && $product->image)
                            <div class="mt-2">
                                <img src="{{ asset('uploads/products/' . $product->image) }}" alt="{{ $product->name }}" style="max-width: 150px; height: auto;">
                                <small class="d-block text-muted mt-1">Current image (upload a new one to replace)</small>
                            </div>
                        @endif
                        <div id="imagePreview" class="mt-2"></div>
                    </div>

                    <!-- Additional Product Images -->
                    <div class="mb-3">
                        <label for="images" class="form-label">Additional Images</label>
                        <input type="file" class="form-control @error('images.*') is-invalid @enderror" id="images" name="images[]" accept="image/jpeg,image/png,image/gif,image/webp" multiple onchange="previewMultipleImages(event)">
                        <small class="form-text text-muted">Upload multiple images for product gallery. Allowed formats: JPG, PNG, GIF, WebP. Max size: 2MB each</small>
                        @error('images.*')
                            <div class="invalid-feedback d-block">{{ $message }}</div>
                        @enderror
                        <div id="multipleImagePreview" class="mt-2" style="display: flex; gap: 10px; flex-wrap: wrap;"></div>
                    </div>

                        @if(isset($product) && $product->productImages->count() > 0)
                            <label class="form-label">Current Images</label>
                            <div class="row" id="currentImages">
                                @foreach($product->productImages as $image)
                                    <div class="col-md-3 mb-3 image-item" data-id="{{ $image->id }}">
                                        <div class="card position-relative">
                                            <img src="{{ asset('uploads/products/' . $image->image_path) }}" alt="Product Image" class="card-img-top" style="height: 150px; object-fit: cover;">
                                            <div class="card-body p-2">
                                                @if($image->is_primary)
                                                    <span class="badge bg-success w-100 mb-2">Primary</span>
                                                @else
                                                    <form action="{{ route('admin.products.setPrimaryImage', $image) }}" method="POST" class="mb-2" style="display: inline;">
                                                        @csrf
                                                        <button type="submit" class="btn btn-sm btn-outline-primary w-100">Set as Primary</button>
                                                    </form>
                                                @endif
                                                <form action="{{ route('admin.products.deleteImage', $image) }}" method="POST" onsubmit="return confirm('Delete this image?');">
                                                    @csrf
                                                    @method('DELETE')
                                                    <button type="submit" class="btn btn-sm btn-danger w-100">Delete</button>
                                                </form>
                                            </div>
                                        </div>
                                    </div>
                                @endforeach
                            </div>
                        @endif

                    <!-- Checkboxes Row -->
                    <div class="row mb-3">
                        <div class="col-md-6">
                            <div class="form-check">
                                <input type="checkbox" class="form-check-input" id="is_active" name="is_active" value="1" {{ old('is_active', isset($product) ? $product->is_active : 1) == 1 ? 'checked' : '' }}>
                                <label class="form-check-label" for="is_active">
                                    Active Product
                                </label>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="form-check">
                                <input type="checkbox" class="form-check-input" id="is_featured" name="is_featured" value="1" {{ old('is_featured', isset($product) ? $product->is_featured : 0) == 1 ? 'checked' : '' }}>
                                <label class="form-check-label" for="is_featured">
                                    Featured Product
                                </label>
                            </div>
                        </div>
                    </div>

                    <div class="d-flex gap-2">
                        <button type="submit" class="btn btn-primary">
                            <i class="bi bi-check-circle"></i> {{ isset($product) ? 'Update Product' : 'Add Product' }}
                        </button>
                        <a href="{{ route('admin.products.index') }}" class="btn btn-outline-secondary">
                            <i class="bi bi-x-circle"></i> Cancel
                        </a>
                    </div>
                </form>
            </div>
        </div>
    </div>

    <div class="col-md-4">
        <div class="card border-0 shadow-sm">
            <div class="card-header bg-light border-bottom">
                <h6 class="mb-0">Quick Info</h6>
            </div>
            <div class="card-body">
                @if(isset($product))
                    <div class="mb-3">
                        <small class="text-muted">Product ID</small>
                        <p class="h6 mb-0">#{{ $product->id }}</p>
                    </div>
                    <div class="mb-3">
                        <small class="text-muted">Created</small>
                        <p class="h6 mb-0">{{ $product->created_at->format('M d, Y') }}</p>
                    </div>
                    <div class="mb-3">
                        <small class="text-muted">Last Updated</small>
                        <p class="h6 mb-0">{{ $product->updated_at->format('M d, Y H:i') }}</p>
                    </div>
                @else
                    <p class="text-muted">Fill in the form to create a new product</p>
                @endif
            </div>
        </div>
    </div>
</div>

<script>
function previewImage(event) {
    const file = event.target.files[0];
    const preview = document.getElementById('imagePreview');
    
    if (file) {
        const reader = new FileReader();
        reader.onload = function(e) {
            preview.innerHTML = '<img src="' + e.target.result + '" style="max-width: 150px; height: auto;" class="border rounded">';
        };
        reader.readAsDataURL(file);
    }
}

function previewMultipleImages(event) {
    const files = event.target.files;
    const preview = document.getElementById('multipleImagePreview');
    preview.innerHTML = '';
    
    if (files.length === 0) {
        preview.style.display = 'none';
        return;
    }
    
    preview.style.display = 'flex';
    
    Array.from(files).forEach((file, index) => {
        const reader = new FileReader();
        reader.onload = function(e) {
            const imgWrapper = document.createElement('div');
            imgWrapper.style.position = 'relative';
            imgWrapper.innerHTML = `
                <img src="${e.target.result}" style="max-width: 120px; height: 120px; object-fit: cover; border-radius: 4px; border: 1px solid #ddd;">
                <small style="display: block; margin-top: 5px; font-size: 0.8em; color: #666;">${file.name}</small>
            `;
            preview.appendChild(imgWrapper);
        };
        reader.readAsDataURL(file);
    });
}
</script>
@endsection