@extends('layouts.app')

@section('content')
<div class="container-fluid py-4">
    <!-- Breadcrumb -->
    <nav aria-label="breadcrumb" class="mb-4">
        <ol class="breadcrumb">
            <li class="breadcrumb-item">
                <a href="{{ route('frontend.home') }}" class="text-decoration-none">Home</a>
            </li>
            <li class="breadcrumb-item">
                <a href="{{ route('user.products.index') }}" class="text-decoration-none">Products</a>
            </li>
            @if($product->category)
                <li class="breadcrumb-item">
                    <a href="{{ route('user.products.index', ['category' => $product->category->id]) }}" class="text-decoration-none">
                        {{ $product->category->name }}
                    </a>
                </li>
            @endif
            <li class="breadcrumb-item active" aria-current="page">{{ $product->name }}</li>
        </ol>
    </nav>

    <div class="row mb-5">
        <!-- Product Images -->
        <div class="col-lg-5 mb-4 mb-lg-0">
            <!-- Main Image Display -->
            <div class="card border-0 mb-3">
                <div class="card-body p-0">
                    @php
                        $primaryImage = $product->getPrimaryImage();
                        $hasImages = $product->productImages()->count() > 0;
                    @endphp

                    @if($hasImages && $primaryImage)
                        <img id="mainImage" src="{{ asset('uploads/products/' . $primaryImage->image_path) }}" class="img-fluid w-100 rounded" 
                             alt="{{ $product->name }}" style="height: 500px; object-fit: cover;">
                    @elseif($product->image)
                        <img id="mainImage" src="{{ asset('uploads/products/' . $product->image) }}" class="img-fluid w-100 rounded" 
                             alt="{{ $product->name }}" style="height: 500px; object-fit: cover;">
                    @else
                        <img id="mainImage" src="{{ asset('uploads/no-image.png') }}" class="img-fluid w-100 rounded" 
                             alt="No Image Available" style="height: 500px; object-fit: cover;">
                    @endif
                </div>
            </div>

            <!-- Image Thumbnails Gallery -->
            @if($hasImages && $product->productImages()->count() > 1)
                <div class="d-flex gap-2 overflow-auto pb-2">
                    @foreach($product->productImages as $image)
                        <img src="{{ asset('uploads/products/' . $image->image_path) }}" 
                             alt="Product Image" 
                             class="img-thumbnail cursor-pointer" 
                             style="width: 80px; height: 80px; object-fit: cover; cursor: pointer; flex-shrink: 0;"
                             onclick="changeMainImage('{{ asset('uploads/products/' . $image->image_path) }}', '{{ $product->name }}')"
                             title="Click to view">
                    @endforeach
                </div>
            @endif
        </div>

        <!-- Product Details -->
        <div class="col-lg-7">
            <div class="row mb-3">
                <div class="col-12">
                    <!-- Category & Brand -->
                    <div class="mb-3">
                        @if($product->category)
                            <a href="{{ route('user.products.index', ['category' => $product->category->id]) }}" 
                               class="badge bg-primary text-decoration-none me-2">
                                {{ $product->category->name }}
                            </a>
                        @endif
                        @if($product->brand)
                            <a href="{{ route('user.products.index', ['brand' => $product->brand->id]) }}" 
                               class="badge bg-secondary text-decoration-none">
                                {{ $product->brand->name }}
                            </a>
                        @endif
                    </div>

                    <!-- Product Title -->
                    <h1 class="mb-3">{{ $product->name }}</h1>

                    <!-- Rating -->
                    @if($product->rating && $product->rating > 0)
                        <div class="mb-3">
                            <span class="text-warning">
                                @for($i = 0; $i < floor($product->rating); $i++)
                                    <i class="fas fa-star"></i>
                                @endfor
                                @if($product->rating % 1 != 0)
                                    <i class="fas fa-star-half-alt"></i>
                                @endif
                            </span>
                            <span class="text-muted ms-2">({{ number_format($product->rating, 1) }} out of 5)</span>
                        </div>
                    @endif

                    <!-- Stock Status -->
                    <div class="mb-3">
                        @if($product->inventory && $product->inventory->quantity > 0)
                            <span class="badge bg-success fs-6">In Stock ({{ $product->inventory->quantity }} available)</span>
                        @else
                            <span class="badge bg-danger fs-6">Out of Stock</span>
                        @endif
                    </div>

                    <!-- Price -->
                    <div class="mb-4">
                        <h2 class="text-primary mb-2">
                            {{ \App\Support\Currency::symbol() }}{{ number_format($product->price, 2) }}
                        </h2>
                        @if($product->cost_price && $product->cost_price < $product->price)
                            <p class="text-muted">
                                <span class="text-decoration-line-through">{{ \App\Support\Currency::symbol() }}{{ number_format($product->cost_price, 2) }}</span>
                                <span class="badge bg-danger ms-2">
                                    Save {{ round(((($product->price - $product->cost_price) / $product->price) * 100)) }}%
                                </span>
                            </p>
                        @endif
                    </div>

                    <!-- SKU & Details -->
                    <table class="table table-borderless small mb-4">
                        <tr>
                            <td class="text-muted"><strong>SKU:</strong></td>
                            <td><code>{{ $product->sku }}</code></td>
                        </tr>
                        @if($product->weight)
                            <tr>
                                <td class="text-muted"><strong>Weight:</strong></td>
                                <td>{{ $product->weight }} kg</td>
                            </tr>
                        @endif
                        @if($product->dimensions)
                            <tr>
                                <td class="text-muted"><strong>Dimensions:</strong></td>
                                <td>{{ $product->dimensions }}</td>
                            </tr>
                        @endif
                    </table>

                    <!-- Add to Cart Form -->
                    <form id="addToCartForm" class="mb-4">
                        <div class="row g-2">
                            <div class="col-auto">
                                <label for="quantity" class="form-label">Quantity:</label>
                                <input type="number" class="form-control" id="quantity" name="quantity" value="1" 
                                       min="1" max="{{ $product->inventory?->quantity ?? 1 }}"
                                       @if(!$product->inventory || $product->inventory->quantity <= 0) disabled @endif>
                            </div>
                            <div class="col-12">
                                <button type="button" class="btn btn-primary btn-lg w-100 add-to-cart-btn" 
                                        data-product-id="{{ $product->id }}"
                                        @if(!$product->inventory || $product->inventory->quantity <= 0) disabled @endif>
                                    <i class="fas fa-shopping-cart me-2"></i>Add to Cart
                                </button>
                            </div>
                            <div class="col-12">
                                <button type="button" class="btn btn-outline-secondary w-100">
                                    <i class="far fa-heart me-2"></i>Add to Wishlist
                                </button>
                            </div>
                        </div>
                    </form>

                    <!-- Share -->
                    <div class="d-flex gap-2">
                        <span class="text-muted me-2">Share:</span>
                        <a href="#" class="btn btn-sm btn-outline-secondary">
                            <i class="fab fa-facebook"></i>
                        </a>
                        <a href="#" class="btn btn-sm btn-outline-secondary">
                            <i class="fab fa-twitter"></i>
                        </a>
                        <a href="#" class="btn btn-sm btn-outline-secondary">
                            <i class="fab fa-pinterest"></i>
                        </a>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Product Description Tabs -->
    <div class="row mb-5">
        <div class="col-12">
            <div class="card border-0">
                <div class="card-header bg-light">
                    <ul class="nav nav-tabs card-header-tabs" role="tablist">
                        <li class="nav-item" role="presentation">
                            <button class="nav-link active" id="description-tab" data-bs-toggle="tab" 
                                    data-bs-target="#description" type="button" role="tab">
                                Description
                            </button>
                        </li>
                        <li class="nav-item" role="presentation">
                            <button class="nav-link" id="specification-tab" data-bs-toggle="tab" 
                                    data-bs-target="#specification" type="button" role="tab">
                                Specifications
                            </button>
                        </li>
                    </ul>
                </div>
                <div class="card-body">
                    <div class="tab-content">
                        <!-- Description Tab -->
                        <div class="tab-pane fade show active" id="description" role="tabpanel">
                            <p>{{ $product->description ?? 'No description available.' }}</p>
                        </div>

                        <!-- Specification Tab -->
                        <div class="tab-pane fade" id="specification" role="tabpanel">
                            @if($product->specification)
                                <div class="specification-content">
                                    {!! nl2br($product->specification) !!}
                                </div>
                            @else
                                <p class="text-muted">No specifications available.</p>
                            @endif
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Related Products -->
    @if($relatedProducts->count() > 0)
        <div class="row mb-5">
            <div class="col-12">
                <h3 class="mb-4">Related Products</h3>
            </div>
            @foreach($relatedProducts as $related)
                <div class="col-md-6 col-lg-3 mb-4">
                    <div class="card h-100 product-card shadow-sm">
                        <div class="position-relative overflow-hidden" style="height: 200px; background: #f8f9fa;">
                            <img src="{{ $related->image ? asset($related->image) : asset('uploads/no-image.png') }}" class="card-img-top w-100 h-100" 
                                 alt="{{ $related->name }}" style="object-fit: cover;">
                            @if($related->inventory && $related->inventory->quantity > 0)
                                <span class="badge bg-success position-absolute top-0 end-0 m-2">In Stock</span>
                            @else
                                <span class="badge bg-danger position-absolute top-0 end-0 m-2">Out of Stock</span>
                            @endif
                        </div>
                        <div class="card-body">
                            <h6 class="card-title">
                                <a href="{{ route('user.products.show', $related) }}" class="text-decoration-none text-dark">
                                    {{ Str::limit($related->name, 50) }}
                                </a>
                            </h6>
                            <p class="text-primary fw-bold mb-2">{{ \App\Support\Currency::symbol() }}{{ number_format($related->price, 2) }}</p>
                            <a href="{{ route('user.products.show', $related) }}" class="btn btn-sm btn-primary w-100">
                                View Details
                            </a>
                        </div>
                    </div>
                </div>
            @endforeach
        </div>
    @endif
</div>

<!-- Reviews Section -->
<div class="container-fluid py-5 bg-light">
    <div class="container">
        <h3 class="mb-4">
            <i class="bi bi-chat-left-text"></i> Customer Reviews
        </h3>

        @if(auth()->check())
            @php
                $hasPurchased = auth()->user()->orders()
                    ->join('order_items', 'orders.id', '=', 'order_items.order_id')
                    ->where('order_items.product_id', $product->id)
                    ->where('orders.status', '!=', 'cancelled')
                    ->exists();
            @endphp

            @if($hasPurchased)
                <!-- Add Review Form -->
                <div class="card border-0 shadow-sm mb-5">
                    <div class="card-header bg-primary text-white">
                        <h5 class="mb-0">Write a Review</h5>
                    </div>
                    <div class="card-body">
                        @if($errors->any())
                            <div class="alert alert-danger">
                                <ul class="mb-0">
                                    @foreach($errors->all() as $error)
                                        <li>{{ $error }}</li>
                                    @endforeach
                                </ul>
                            </div>
                        @endif

                        <form action="{{ route('user.reviews.store', $product) }}" method="POST">
                        @csrf

                        <div class="mb-3">
                            <label for="rating" class="form-label">Rating <span class="text-danger">*</span></label>
                            <div class="rating-input">
                                <input type="hidden" id="rating" name="rating" value="5" required>
                                <div class="star-rating">
                                    @for($i = 5; $i >= 1; $i--)
                                        <label class="star" data-rating="{{ $i }}">
                                            <input type="radio" name="rating_radio" value="{{ $i }}" style="display:none;">
                                            <i class="bi bi-star-fill"></i>
                                        </label>
                                    @endfor
                                </div>
                            </div>
                            <small class="text-muted">Select your rating (1-5 stars)</small>
                        </div>

                        <div class="mb-3">
                            <label for="title" class="form-label">Review Title <span class="text-danger">*</span></label>
                            <input type="text" class="form-control @error('title') is-invalid @enderror" 
                                   id="title" name="title" placeholder="Summarize your experience" 
                                   value="{{ old('title') }}" required maxlength="100">
                            @error('title')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>

                        <div class="mb-3">
                            <label for="content" class="form-label">Your Review <span class="text-danger">*</span></label>
                            <textarea class="form-control @error('content') is-invalid @enderror" 
                                      id="content" name="content" rows="4" 
                                      placeholder="Share your experience with this product (minimum 10 characters)"
                                      required minlength="10" maxlength="1000">{{ old('content') }}</textarea>
                            <small class="text-muted d-block mt-1">
                                <span id="charCount">0</span>/1000 characters
                            </small>
                            @error('content')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>

                        <button type="submit" class="btn btn-primary">
                            <i class="bi bi-check-circle"></i> Post Review
                        </button>
                    </form>
                </div>
            </div>
            @else
                <div class="alert alert-warning mb-5">
                    <i class="bi bi-exclamation-triangle"></i>
                    You can only review products you have purchased. <a href="{{ route('user.orders.index') }}" class="alert-link">View your orders</a>
                </div>
            @endif
        @else
            <div class="alert alert-info mb-5">
                <i class="bi bi-info-circle"></i>
                <a href="{{ route('login') }}" class="alert-link">Sign in</a> to write a review.
            </div>
        @endif

        <!-- Existing Reviews -->
        @if($product->reviews()->approved()->count() > 0)
            <div class="row">
                @foreach($product->reviews()->approved()->latest()->paginate(5) as $review)
                    <div class="col-12 mb-4">
                        <div class="card border-0 shadow-sm">
                            <div class="card-body">
                                <!-- Review Header -->
                                <div class="d-flex justify-content-between align-items-start mb-3">
                                    <div class="flex-grow-1">
                                        <!-- Stars -->
                                        <div class="mb-2">
                                            @for($i = 0; $i < $review->rating; $i++)
                                                <i class="bi bi-star-fill text-warning"></i>
                                            @endfor
                                            @for($i = $review->rating; $i < 5; $i++)
                                                <i class="bi bi-star text-muted"></i>
                                            @endfor
                                        </div>

                                        <!-- Title -->
                                        <h5 class="card-title mb-1">{{ $review->title }}</h5>

                                        <!-- Author Info -->
                                        <p class="text-muted mb-3">
                                            <strong>{{ $review->user->name }}</strong> 
                                            • {{ $review->created_at->diffForHumans() }}
                                        </p>
                                    </div>

                                    <!-- Delete Button (if user owns the review) -->
                                    @if(auth()->check() && (auth()->user()->id === $review->user_id || auth()->user()->is_admin))
                                        <form action="{{ route('user.reviews.destroy', $review) }}" method="POST" 
                                              onsubmit="return confirm('Are you sure you want to delete this review?');" 
                                              class="ms-2">
                                            @csrf
                                            @method('DELETE')
                                            <button type="submit" class="btn btn-sm btn-outline-danger">
                                                <i class="bi bi-trash"></i>
                                            </button>
                                        </form>
                                    @endif
                                </div>

                                <!-- Review Content -->
                                <p class="card-text">{{ $review->content }}</p>
                            </div>
                        </div>
                    </div>
                @endforeach

                <!-- Pagination -->
                <div class="col-12 mt-3">
                    {{ $product->reviews()->approved()->latest()->paginate(5)->links() }}
                </div>
            </div>
        @else
            <div class="alert alert-info">
                <i class="bi bi-info-circle"></i>
                No reviews yet. Be the first to review this product!
            </div>
        @endif
    </div>
</div>

<style>
    .product-card {
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .product-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2) !important;
    }

    .specification-content {
        line-height: 1.8;
    }

    .star-rating {
        display: flex;
        flex-direction: row-reverse;
        justify-content: flex-end;
        gap: 10px;
    }

    .star-rating .star {
        font-size: 30px;
        cursor: pointer;
        color: #ddd;
        transition: color 0.2s;
    }

    .star-rating .star:hover,
    .star-rating .star.active {
        color: #ffc107;
    }

    .star-rating input:checked ~ .star,
    .star-rating .star:hover {
        color: #ffc107;
    }

</style>

<script>
function changeMainImage(imageUrl, productName) {
    document.getElementById('mainImage').src = imageUrl;
    document.getElementById('mainImage').alt = productName;
}

document.addEventListener('DOMContentLoaded', function() {
    // Star rating functionality
    const stars = document.querySelectorAll('.star-rating .star');
    const ratingInput = document.getElementById('rating');

    stars.forEach(star => {
        star.addEventListener('click', function() {
            const rating = this.dataset.rating;
            ratingInput.value = rating;

            // Update star colors
            stars.forEach(s => {
                if (s.dataset.rating <= rating) {
                    s.classList.add('active');
                } else {
                    s.classList.remove('active');
                }
            });
        });

        // Hover effect
        star.addEventListener('mouseenter', function() {
            const rating = this.dataset.rating;
            stars.forEach(s => {
                if (s.dataset.rating <= rating) {
                    s.style.color = '#ffc107';
                } else {
                    s.style.color = '#ddd';
                }
            });
        });
    });

    // Reset stars on mouse leave
    const starContainer = document.querySelector('.star-rating');
    if (starContainer) {
        starContainer.addEventListener('mouseleave', function() {
            const rating = ratingInput.value;
            stars.forEach(s => {
                if (s.dataset.rating <= rating) {
                    s.classList.add('active');
                } else {
                    s.classList.remove('active');
                }
            });
        });
    }

    // Character counter for review content
    const contentTextarea = document.getElementById('content');
    if (contentTextarea) {
        contentTextarea.addEventListener('input', function() {
            document.getElementById('charCount').textContent = this.value.length;
        });
    }
});
</script>

@endsection