@extends('layouts.admin-simple')

@section('title', 'Add New Product')
@section('page-title', 'Add New Product')

@section('breadcrumb')
    <li class="breadcrumb-item"><a href="{{ route('admin.products.index') }}">Products</a></li>
    <li class="breadcrumb-item active" aria-current="page">Add Product</li>
@endsection

@section('content')
<div class="row">
    <div class="col-lg-8">
        <div class="card">
            <div class="card-header">
                <h4 class="card-title">Product Information</h4>
            </div>
            <div class="card-body">
                <form action="{{ route('admin.products.store') }}" method="POST" enctype="multipart/form-data">
                    @csrf
                    
                    <!-- Category Selection -->
                    <div class="form-group">
                        <label for="category_select">Product Category <span class="text-danger">*</span></label>
                        <select class="form-control" id="category_select" required>
                            <option value="">Select category...</option>
                            @foreach($categories as $category)
                                <option value="{{ $category->id }}">{{ $category->name }}</option>
                            @endforeach
                        </select>
                        <small class="form-text text-muted">Choose the main product category</small>
                    </div>

                    <!-- Standard Selection -->
                    <div class="form-group">
                        <label for="standard_select">Standard <span class="text-danger">*</span></label>
                        <select class="form-control" id="standard_select" required disabled>
                            <option value="">Select standard...</option>
                        </select>
                        <small class="form-text text-muted">Choose the applicable standard</small>
                    </div>


                    <!-- Application Selection -->
                    <div class="form-group">
                        <label for="application_id">Application <span class="text-danger">*</span></label>
                        <select class="form-control @error('application_id') is-invalid @enderror" 
                                id="application_id" name="application_id" required disabled>
                            <option value="">Select application...</option>
                        </select>
                        @error('application_id')
                            <div class="invalid-feedback">{{ $message }}</div>
                        @enderror
                        <small class="form-text text-muted">Choose the specific application</small>
                    </div>

                    <!-- Product Name -->
                    <div class="form-group">
                        <label for="name">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') }}" required
                               placeholder="e.g., Clear Float Glass, Tinted Glass">
                        @error('name')
                            <div class="invalid-feedback">{{ $message }}</div>
                        @enderror
                    </div>

                    <!-- Description -->
                    <div class="form-group">
                        <label for="description">Description</label>
                        <textarea class="form-control @error('description') is-invalid @enderror" 
                                  id="description" name="description" rows="3"
                                  placeholder="Provide a detailed description of the product...">{{ old('description') }}</textarea>
                        @error('description')
                            <div class="invalid-feedback">{{ $message }}</div>
                        @enderror
                    </div>

                    <!-- Features -->
                    <div class="form-group">
                        <label for="features">Key Features</label>
                        <textarea class="form-control @error('features') is-invalid @enderror" 
                                  id="features" name="features" rows="3"
                                  placeholder="List the key features and benefits...">{{ old('features') }}</textarea>
                        @error('features')
                            <div class="invalid-feedback">{{ $message }}</div>
                        @enderror
                    </div>

                    <!-- Thickness Range -->
                    <div class="row">
                        <div class="col-md-4">
                            <div class="form-group">
                                <label for="thickness_min">Min Thickness</label>
                                <input type="number" step="0.01" class="form-control @error('thickness_min') is-invalid @enderror" 
                                       id="thickness_min" name="thickness_min" value="{{ old('thickness_min') }}"
                                       placeholder="e.g., 3.0">
                                @error('thickness_min')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="form-group">
                                <label for="thickness_max">Max Thickness</label>
                                <input type="number" step="0.01" class="form-control @error('thickness_max') is-invalid @enderror" 
                                       id="thickness_max" name="thickness_max" value="{{ old('thickness_max') }}"
                                       placeholder="e.g., 19.0">
                                @error('thickness_max')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="form-group">
                                <label for="thickness_unit">Unit</label>
                                <select class="form-control @error('thickness_unit') is-invalid @enderror" 
                                        id="thickness_unit" name="thickness_unit">
                                    <option value="mm" {{ old('thickness_unit', 'mm') == 'mm' ? 'selected' : '' }}>mm</option>
                                    <option value="inch" {{ old('thickness_unit') == 'inch' ? 'selected' : '' }}>inch</option>
                                </select>
                                @error('thickness_unit')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                        </div>
                    </div>

                    <!-- Main Image -->
                    <div class="form-group">
                        <label for="image">Main Product Image</label>
                        <input type="file" class="form-control-file @error('image') is-invalid @enderror" 
                               id="image" name="image" accept="image/*">
                        @error('image')
                            <div class="invalid-feedback">{{ $message }}</div>
                        @enderror
                        <small class="form-text text-muted">Upload the main product image (recommended: 800x600px)</small>
                    </div>

                    <!-- Additional Images -->
                    <div class="form-group">
                        <label for="images">Additional Images</label>
                        <input type="file" class="form-control-file @error('images.*') is-invalid @enderror" 
                               id="images" name="images[]" accept="image/*" multiple>
                        @error('images.*')
                            <div class="invalid-feedback">{{ $message }}</div>
                        @enderror
                        <small class="form-text text-muted">Upload multiple product images (optional)</small>
                    </div>


                    <!-- Settings -->
                    <div class="row">
                        <div class="col-md-4">
                            <div class="form-group">
                                <label for="sort_order">Sort Order</label>
                                <input type="number" class="form-control @error('sort_order') is-invalid @enderror" 
                                       id="sort_order" name="sort_order" value="{{ old('sort_order', 0) }}">
                                @error('sort_order')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="form-group">
                                <div class="custom-control custom-switch">
                                    <input type="hidden" name="is_featured" value="0">
                                    <input type="checkbox" class="custom-control-input" id="is_featured" 
                                           name="is_featured" value="1" {{ old('is_featured') ? 'checked' : '' }}>
                                    <label class="custom-control-label" for="is_featured">Featured Product</label>
                                </div>
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="form-group">
                                <div class="custom-control custom-switch">
                                    <input type="hidden" name="is_active" value="0">
                                    <input type="checkbox" class="custom-control-input" id="is_active" 
                                           name="is_active" value="1" {{ old('is_active', true) ? 'checked' : '' }}>
                                    <label class="custom-control-label" for="is_active">Active</label>
                                </div>
                            </div>
                        </div>
                    </div>

                    <!-- Submit Buttons -->
                    <div class="form-group">
                        <button type="submit" class="btn btn-primary">
                            <i class="material-icons">save</i> Create Product
                        </button>
                        <a href="{{ route('admin.products.index') }}" class="btn btn-secondary">
                            <i class="material-icons">cancel</i> Cancel
                        </a>
                    </div>
                </form>
            </div>
        </div>
    </div>
    
    <div class="col-lg-4">
        <div class="card">
            <div class="card-header">
                <h4 class="card-title">Product Guidelines</h4>
            </div>
            <div class="card-body">
                <ul class="list-unstyled">
                    <li class="mb-2">
                        <i class="material-icons text-primary">info</i>
                        <strong>Name:</strong> Use clear, descriptive product names
                    </li>
                    <li class="mb-2">
                        <i class="material-icons text-primary">apps</i>
                        <strong>Application:</strong> Select the correct category, standard, and application
                    </li>
                    <li class="mb-2">
                        <i class="material-icons text-primary">straighten</i>
                        <strong>Thickness:</strong> Specify the available thickness range
                    </li>
                    <li class="mb-2">
                        <i class="material-icons text-primary">image</i>
                        <strong>Images:</strong> High-quality product photos improve presentation
                    </li>
                    <li class="mb-2">
                        <i class="material-icons text-primary">star</i>
                        <strong>Featured:</strong> Featured products appear in home page carousel
                    </li>
                </ul>
            </div>
        </div>

        <div class="card mt-3">
            <div class="card-header">
                <h4 class="card-title">Quick Tips</h4>
            </div>
            <div class="card-body">
                <small class="text-muted">
                    <p><strong>Product Hierarchy:</strong></p>
                    <ol class="pl-3">
                        <li>Category (e.g., Float Glass)</li>
                        <li>Standard (e.g., JIS, EN)</li>
                        <li>Application (e.g., Architecture)</li>
                        <li>Product (what you're creating)</li>
                    </ol>
                    <p class="mb-0">After creating the product, you can add specific technical specifications.</p>
                </small>
            </div>
        </div>
    </div>
</div>

@push('scripts')
<script>
    // Data passed from Laravel
    const standards = @json($standards);
    const applications = @json($applications);

    // Elements
    const categorySelect = document.getElementById('category_select');
    const standardSelect = document.getElementById('standard_select');
    const applicationSelect = document.getElementById('application_id');

    // Category change handler
    categorySelect.addEventListener('change', function() {
        const categoryId = this.value;
        
        // Reset and enable standard select
        standardSelect.innerHTML = '<option value="">Select standard...</option>';
        standardSelect.disabled = !categoryId;
        
        // Reset dependent selects
        resetSelect(applicationSelect, 'Select application...');
        
        if (categoryId) {
            // Populate standards for selected category
            const categoryStandards = standards.filter(s => s.category_id == categoryId);
            categoryStandards.forEach(standard => {
                const option = new Option(standard.name + (standard.code ? ` (${standard.code})` : ''), standard.id);
                standardSelect.add(option);
            });
        }
    });

    // Standard change handler
    standardSelect.addEventListener('change', function() {
        const standardId = this.value;
        
        // Reset application select
        resetSelect(applicationSelect, 'Select application...');
        applicationSelect.disabled = !standardId;
        
        if (standardId) {
            // Populate applications for selected standard
            const standardApplications = applications.filter(a => a.standard_id == standardId);
            standardApplications.forEach(application => {
                const option = new Option(application.name, application.id);
                applicationSelect.add(option);
            });
        }
    });

    function resetSelect(selectElement, placeholder) {
        selectElement.innerHTML = `<option value="">${placeholder}</option>`;
        selectElement.disabled = true;
    }
</script>
@endpush
@endsection