@extends('admin.layout.master')

@section('title', isset($product) && $product->id ? __('admin.edit_product') : __('admin.add_product'))

@section('content')
    <div class="container-xxl flex-grow-1 container-p-y">
        <div class="row">
            <div class="col-md-12">
                <div class="card mb-4">
                    <div class="card-header d-flex justify-content-between align-items-center">
                        <h5 class="mb-0">{{ isset($product) && $product->id ? __('admin.edit_product') : __('admin.add_product') }}</h5>
                        <div>
                            <a href="{{ route('admin.products.index') }}" class="btn btn-secondary mb-3">
                                {{ __('admin.back_to_products') }}
                            </a>
                        </div>
                    </div>
                    <div class="card-body">
                        <form action="{{ isset($product) && $product->id ? route('admin.products.update', $product->id) : route('admin.products.store') }}"
                            method="POST" enctype="multipart/form-data">
                            @csrf
                            @if (isset($product) && $product->id)
                                @method('PUT')
                            @endif
                            <div>
                                <!-- Has Sizes Checkbox -->
                                <div class="mb-3">
                                    <label class="form-label">{{ __('admin.has_sizes') }}</label>
                                    <input type="checkbox" name="has_sizes" id="has_sizes"
                                        {{ old('has_sizes', isset($product) && $product->has_sizes ? 'checked' : '') }}
                                        class="form-check-input">
                                    @error('has_sizes')
                                        <div class="alert alert-danger">{{ $message }}</div>
                                    @enderror
                                </div>

                                <!-- Category Selection -->
                                <div class="mb-3">
                                    <label for="category_id" class="form-label">{{ __('admin.category') }}</label>
                                    <select name="category_id" id="category_id" class="form-select">
                                        <option value="">{{ __('admin.select_category') }}</option>
                                        @foreach ($categories as $category)
                                            <option value="{{ $category->id }}"
                                                {{ old('category_id', isset($product) ? $product->category_id : '') == $category->id ? 'selected' : '' }}>
                                                {{ $category->getTranslation('name', app()->getLocale()) }}
                                            </option>
                                        @endforeach
                                    </select>
                                    @error('category_id')
                                        <div class="alert alert-danger">{{ $message }}</div>
                                    @enderror
                                </div>

                                <!-- Name Inputs -->
                                <div class="mb-3">
                                    <label for="name_en" class="form-label">{{ __('admin.name_en') }}</label>
                                    <input type="text" class="form-control" id="name_en" name="name[en]"
                                        value="{{ old('name.en', isset($product) ? $product->getTranslation('name', 'en') : '') }}"
                                        placeholder="{{ __('admin.name_en') }}">
                                    @error('name.en')
                                        <div class="alert alert-danger">{{ $message }}</div>
                                    @enderror
                                </div>

                                <div class="mb-3">
                                    <label for="name_ar" class="form-label">{{ __('admin.name_ar') }}</label>
                                    <input type="text" class="form-control" id="name_ar" name="name[ar]"
                                        value="{{ old('name.ar', isset($product) ? $product->getTranslation('name', 'ar') : '') }}"
                                        placeholder="{{ __('admin.name_ar') }}">
                                    @error('name.ar')
                                        <div class="alert alert-danger">{{ $message }}</div>
                                    @enderror
                                </div>

                                <!-- Description Inputs -->
                                <div class="mb-3">
                                    <label for="description_en" class="form-label">{{ __('admin.description_en') }}</label>
                                    <textarea class="form-control" id="description_en" name="description[en]" rows="3"
                                        placeholder="{{ __('admin.description_en') }}">{{ old('description.en', isset($product) ? $product->getTranslation('description', 'en') : '') }}</textarea>
                                    @error('description.en')
                                        <div class="alert alert-danger">{{ $message }}</div>
                                    @enderror
                                </div>

                                <div class="mb-3">
                                    <label for="description_ar" class="form-label">{{ __('admin.description_ar') }}</label>
                                    <textarea class="form-control" id="description_ar" name="description[ar]" rows="3"
                                        placeholder="{{ __('admin.description_ar') }}">{{ old('description.ar', isset($product) ? $product->getTranslation('description', 'ar') : '') }}</textarea>
                                    @error('description.ar')
                                        <div class="alert alert-danger">{{ $message }}</div>
                                    @enderror
                                </div>

                                <!-- Pricing -->
                                <div class="row">
                                    <div class="col-md-4">
                                        <div class="mb-3" id="price-per-unit-section" style="{{ old('has_sizes', isset($product) && $product->has_sizes) ? '' : 'display: none;' }}">
                                            <label for="price_per_unit" class="form-label">{{ __('admin.price_per_unit') }}</label>
                                            <input type="number" step="0.01" class="form-control" id="price_per_unit" name="price_per_unit"
                                                value="{{ old('price_per_unit', isset($product) ? $product->price_per_unit : '') }}"
                                                placeholder="{{ __('admin.price_per_unit') }}">
                                            @error('price_per_unit')
                                                <div class="alert alert-danger">{{ $message }}</div>
                                            @enderror
                                        </div>
                                    </div>
                                    <div class="col-md-4">
                                        <div class="mb-3">
                                            <label for="price" class="form-label">{{ __('admin.price') }}</label>
                                            <input type="number" step="0.01" class="form-control" id="price" name="price"
                                                value="{{ old('price', isset($product) ? $product->price : '') }}"
                                                placeholder="{{ __('admin.price') }}" required>
                                            @error('price')
                                                <div class="alert alert-danger">{{ $message }}</div>
                                            @enderror
                                        </div>
                                    </div>
                                    <div class="col-md-4">
                                        <div class="mb-3">
                                            <label for="price_after_discount" class="form-label">{{ __('admin.price_after_discount') }}</label>
                                            <input type="number" step="0.01" class="form-control" id="price_after_discount" name="price_after_discount"
                                                value="{{ old('price_after_discount', isset($product) ? $product->price_after_discount : '') }}"
                                                placeholder="{{ __('admin.price_after_discount') }}">
                                            @error('price_after_discount')
                                                <div class="alert alert-danger">{{ $message }}</div>
                                            @enderror
                                        </div>
                                    </div>
                                </div>

                                <!-- Product Sizes Section -->
                                <div class="mb-4" id="sizes-section" style="{{ old('has_sizes', isset($product) && $product->has_sizes) ? '' : 'display: none;' }}">
                                    <h6>{{ __('admin.product_sizes') }}</h6>
                                    <div id="sizes-container">
                                        @if (isset($product) && $product->has_sizes && $product->sizes->count() > 0)
                                            @foreach ($product->sizes as $index => $size)
                                                <div class="size-item border p-3 mb-3 rounded">
                                                    <div class="row">
                                                        <div class="col-md-3">
                                                            <div class="mb-3">
                                                                <label class="form-label">{{ __('admin.size_type') }}</label>
                                                                <select name="sizes[{{ $index }}][size_type]" class="form-select size-type-select">
                                                                    <option value="meter" {{ old('sizes.' . $index . '.size_type', $size->size_type) == 'meter' ? 'selected' : '' }}>{{ __('admin.meter') }}</option>
                                                                </select>
                                                                @error('sizes.' . $index . '.size_type')
                                                                    <div class="alert alert-danger">{{ $message }}</div>
                                                                @enderror
                                                            </div>
                                                        </div>
                                                        <div class="col-md-3 meter-fields">
                                                            <div class="mb-3">
                                                                <label class="form-label">{{ __('admin.length') }}</label>
                                                                <input type="number" step="0.01" class="form-control" name="sizes[{{ $index }}][length]"
                                                                    value="{{ old('sizes.' . $index . '.length', $size->length) }}"
                                                                    placeholder="{{ __('admin.length') }}">
                                                                @error('sizes.' . $index . '.length')
                                                                    <div class="alert alert-danger">{{ $message }}</div>
                                                                @enderror
                                                            </div>
                                                        </div>
                                                        <div class="col-md-3 meter-fields">
                                                            <div class="mb-3">
                                                                <label class="form-label">{{ __('admin.width') }}</label>
                                                                <input type="number" step="0.01" class="form-control" name="sizes[{{ $index }}][width]"
                                                                    value="{{ old('sizes.' . $index . '.width', $size->width) }}"
                                                                    placeholder="{{ __('admin.width') }}">
                                                                @error('sizes.' . $index . '.width')
                                                                    <div class="alert alert-danger">{{ $message }}</div>
                                                                @enderror
                                                            </div>
                                                        </div>
                                                    </div>
                                                    <button type="button" class="btn btn-danger btn-sm remove-size">{{ __('admin.remove_size') }}</button>
                                                </div>
                                            @endforeach
                                        @else
                                            <div class="size-item border p-3 mb-3 rounded">
                                                <div class="row">
                                                    <div class="col-md-3">
                                                        <div class="mb-3">
                                                            <label class="form-label">{{ __('admin.size_type') }}</label>
                                                            <select name="sizes[0][size_type]" class="form-select size-type-select">
                                                                <option value="meter" {{ old('sizes.0.size_type', 'meter') == 'meter' ? 'selected' : '' }}>{{ __('admin.meter') }}</option>
                                                            </select>
                                                            @error('sizes.0.size_type')
                                                                <div class="alert alert-danger">{{ $message }}</div>
                                                            @enderror
                                                        </div>
                                                    </div>
                                                    <div class="col-md-3 meter-fields">
                                                        <div class="mb-3">
                                                            <label class="form-label">{{ __('admin.length') }}</label>
                                                            <input type="number" step="0.01" class="form-control" name="sizes[0][length]"
                                                                value="{{ old('sizes.0.length') }}"
                                                                placeholder="{{ __('admin.length') }}">
                                                            @error('sizes.0.length')
                                                                <div class="alert alert-danger">{{ $message }}</div>
                                                            @enderror
                                                        </div>
                                                    </div>
                                                    <div class="col-md-3 meter-fields">
                                                        <div class="mb-3">
                                                            <label class="form-label">{{ __('admin.width') }}</label>
                                                            <input type="number" step="0.01" class="form-control" name="sizes[0][width]"
                                                                value="{{ old('sizes.0.width') }}"
                                                                placeholder="{{ __('admin.width') }}">
                                                            @error('sizes.0.width')
                                                                <div class="alert alert-danger">{{ $message }}</div>
                                                            @enderror
                                                        </div>
                                                    </div>
                                                </div>
                                                <button type="button" class="btn btn-danger btn-sm remove-size">{{ __('admin.remove_size') }}</button>
                                            </div>
                                        @endif
                                    </div>
                                    <button type="button" class="btn btn-success btn-sm" id="add-size">{{ __('admin.add_size') }}</button>
                                </div>

                                <!-- Images Upload -->
                                <div class="mb-3">
                                    <label for="image" class="form-label">{{ __('admin.image') }}</label>
                                    <input type="file" class="form-control" id="image" name="image" onchange="previewImage(event)">
                                    <div class="image-container mt-2" id="new-image-container" style="display: none;">
                                        <img id="newImagePreview" class="rounded-circle" style="max-width: 100%; height: auto;" />
                                    </div>
                                    @if (isset($product) && $product->image)
                                        <div class="image-container mt-2" id="existing-image-container">
                                            <img id="existingImagePreview" class="rounded-circle"
                                                src="{{ asset('storage/' . $product->image) }}"
                                                style="max-width: 100%; height: auto;" />
                                        </div>
                                    @endif
                                    @error('image')
                                        <div class="alert alert-danger">{{ $message }}</div>
                                    @enderror
                                </div>

                                <div class="d-flex justify-content-end">
                                    <button class="btn btn-primary" type="submit">{{ isset($product) && $product->id ? __('admin.update') : __('admin.save') }}</button>
                                </div>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    </div>
@endsection

@section('scripts')
    <script>
        function previewImage(event) {
            const reader = new FileReader();
            reader.onload = function() {
                const output = document.getElementById('newImagePreview');
                output.src = reader.result;
                document.getElementById('new-image-container').style.display = 'block';
                const existingContainer = document.getElementById('existing-image-container');
                if (existingContainer) {
                    existingContainer.style.display = 'none';
                }
            };
            if (event.target.files[0]) {
                reader.readAsDataURL(event.target.files[0]);
            }
        }

        let sizeIndex = {{ isset($product) && $product->sizes && $product->sizes->count() > 0 ? $product->sizes->count() : 1 }};

        document.getElementById('add-size').addEventListener('click', function() {
            const container = document.getElementById('sizes-container');
            const newSize = `
                <div class="size-item border p-3 mb-3 rounded">
                    <div class="row">
                        <div class="col-md-3">
                            <div class="mb-3">
                                <label class="form-label">{{ __('admin.size_type') }}</label>
                                <select name="sizes[${sizeIndex}][size_type]" class="form-select size-type-select">
                                    <option value="meter">{{ __('admin.meter') }}</option>
                                </select>
                                <div class="alert alert-danger d-none" id="error-sizes-${sizeIndex}-size_type"></div>
                            </div>
                        </div>
                        <div class="col-md-3 meter-fields">
                            <div class="mb-3">
                                <label class="form-label">{{ __('admin.length') }}</label>
                                <input type="number" step="0.01" class="form-control" name="sizes[${sizeIndex}][length]"
                                    placeholder="{{ __('admin.length') }}">
                                <div class="alert alert-danger d-none" id="error-sizes-${sizeIndex}-length"></div>
                            </div>
                        </div>
                        <div class="col-md-3 meter-fields">
                            <div class="mb-3">
                                <label class="form-label">{{ __('admin.width') }}</label>
                                <input type="number" step="0.01" class="form-control" name="sizes[${sizeIndex}][width]"
                                    placeholder="{{ __('admin.width') }}">
                                <div class="alert alert-danger d-none" id="error-sizes-${sizeIndex}-width"></div>
                            </div>
                        </div>
                    </div>
                    <button type="button" class="btn btn-danger btn-sm remove-size">{{ __('admin.remove_size') }}</button>
                </div>
            `;
            container.insertAdjacentHTML('beforeend', newSize);
            sizeIndex++;
        });

        document.getElementById('has_sizes').addEventListener('change', function() {
            const sizesSection = document.getElementById('sizes-section');
            const sizesContainer = document.getElementById('sizes-container');
            const pricePerUnitSection = document.getElementById('price-per-unit-section');
            sizesSection.style.display = this.checked ? 'block' : 'none';
            pricePerUnitSection.style.display = this.checked ? 'block' : 'none';
            if (!this.checked) {
                sizesContainer.innerHTML = ''; // Clear all sizes if has_sizes is unchecked
                document.getElementById('price_per_unit').value = ''; // Reset price_per_unit
            } else if (sizesContainer.children.length === 0) {
                // Add default size if container is empty
                const defaultSize = `
                    <div class="size-item border p-3 mb-3 rounded">
                        <div class="row">
                            <div class="col-md-3">
                                <div class="mb-3">
                                    <label class="form-label">{{ __('admin.size_type') }}</label>
                                    <select name="sizes[0][size_type]" class="form-select size-type-select">
                                        <option value="meter">{{ __('admin.meter') }}</option>
                                    </select>
                                    <div class="alert alert-danger d-none" id="error-sizes-0-size_type"></div>
                                </div>
                            </div>
                            <div class="col-md-3 meter-fields">
                                <div class="mb-3">
                                    <label class="form-label">{{ __('admin.length') }}</label>
                                    <input type="number" step="0.01" class="form-control" name="sizes[0][length]"
                                        placeholder="{{ __('admin.length') }}">
                                    <div class="alert alert-danger d-none" id="error-sizes-0-length"></div>
                                </div>
                            </div>
                            <div class="col-md-3 meter-fields">
                                <div class="mb-3">
                                    <label class="form-label">{{ __('admin.width') }}</label>
                                    <input type="number" step="0.01" class="form-control" name="sizes[0][width]"
                                        placeholder="{{ __('admin.width') }}">
                                    <div class="alert alert-danger d-none" id="error-sizes-0-width"></div>
                                </div>
                            </div>
                        </div>
                        <button type="button" class="btn btn-danger btn-sm remove-size">{{ __('admin.remove_size') }}</button>
                    </div>
                `;
                sizesContainer.insertAdjacentHTML('beforeend', defaultSize);
            }
        });

        document.addEventListener('click', function(e) {
            if (e.target.classList.contains('remove-size')) {
                const sizesContainer = document.getElementById('sizes-container');
                const hasSizesCheckbox = document.getElementById('has_sizes');
                if (hasSizesCheckbox.checked && sizesContainer.children.length > 1) {
                    e.target.closest('.size-item').remove();
                } else if (!hasSizesCheckbox.checked) {
                    e.target.closest('.size-item').remove();
                } else {
                    alert('{{ __('admin.at_least_one_size_required') }}');
                }
            }
        });

        @if ($errors->any())
            $(document).ready(function() {
                @foreach ($errors->all() as $error)
                    toastr.error('{{ $error }}');
                @endforeach
                @foreach ($errors->get('sizes.*.*') as $field => $messages)
                    @foreach ($messages as $message)
                        var fieldParts = '{{ $field }}'.split('.');
                        var index = fieldParts[1];
                        var fieldName = fieldParts[2];
                        var errorContainer = document.getElementById('error-sizes-' + index + '-' + fieldName);
                        if (errorContainer) {
                            errorContainer.textContent = '{{ $message }}';
                            errorContainer.classList.remove('d-none');
                        }
                    @endforeach
                @endforeach
            });
        @endif
    </script>
@endsection