@extends('layouts.bootstrap')

@section('title', 'Product Merge History')

@section('header')
    <h1 class="h3 mb-0">
        <i class="bi bi-clock-history me-2"></i>Product Merge History
    </h1>
    <div>
        <a href="{{ route('products.merge.index') }}" class="btn btn-primary">
            <i class="bi bi-arrow-down-up me-1"></i>Merge Products
        </a>
        <a href="{{ route('products.index') }}" class="btn btn-secondary">
            <i class="bi bi-arrow-left me-1"></i>Back to Products
        </a>
    </div>
@endsection

@section('content')
<div class="container-fluid">
    <div class="card">
        <div class="card-header">
            <h5 class="card-title mb-0">
                <i class="bi bi-list-ul me-2"></i>Merge Operations History
            </h5>
            <small class="text-muted">Track all product merge operations and their details</small>
        </div>
        <div class="card-body">
            @if($merges->count() > 0)
                <div class="table-responsive">
                    <table class="table table-hover">
                        <thead class="table-light">
                            <tr>
                                <th>Merged Product</th>
                                <th>Original Products</th>
                                <th>Merged By</th>
                                <th>Date</th>
                                <th>Reason</th>
                                <th>Actions</th>
                            </tr>
                        </thead>
                        <tbody>
                            @foreach($merges as $merge)
                                <tr>
                                    <td>
                                        @if($merge->mergedProduct)
                                            <a href="{{ route('products.show', $merge->mergedProduct) }}" 
                                               class="text-decoration-none">
                                                <strong>{{ $merge->merged_product_name }}</strong>
                                            </a>
                                            <br><small class="text-success">
                                                <i class="bi bi-check-circle me-1"></i>Active
                                            </small>
                                        @else
                                            <span class="text-muted">
                                                <strong>{{ $merge->merged_product_name }}</strong>
                                                <br><small class="text-danger">
                                                    <i class="bi bi-x-circle me-1"></i>Deleted
                                                </small>
                                            </span>
                                        @endif
                                    </td>
                                    <td>
                                        <div class="d-flex flex-wrap gap-1">
                                            @foreach($merge->getOriginalProductNames() as $name)
                                                <span class="badge bg-secondary">{{ $name }}</span>
                                            @endforeach
                                        </div>
                                        <small class="text-muted">
                                            {{ $merge->getOriginalProductsCount() }} products merged
                                        </small>
                                    </td>
                                    <td>
                                        @if($merge->mergedBy)
                                            <div class="d-flex align-items-center">
                                                <div class="avatar-sm bg-primary text-white rounded-circle d-flex align-items-center justify-content-center me-2">
                                                    {{ strtoupper(substr($merge->mergedBy->name, 0, 1)) }}
                                                </div>
                                                <div>
                                                    <strong>{{ $merge->mergedBy->name }}</strong>
                                                    <br><small class="text-muted">{{ $merge->mergedBy->email }}</small>
                                                </div>
                                            </div>
                                        @else
                                            <span class="text-muted">Unknown User</span>
                                        @endif
                                    </td>
                                    <td>
                                        <strong>{{ $merge->merged_at->format('M d, Y') }}</strong>
                                        <br><small class="text-muted">{{ $merge->merged_at->format('g:i A') }}</small>
                                        <br><small class="text-muted">{{ $merge->merged_at->diffForHumans() }}</small>
                                    </td>
                                    <td>
                                        @if($merge->merge_reason)
                                            <span class="text-truncate d-inline-block" style="max-width: 200px;" 
                                                  title="{{ $merge->merge_reason }}">
                                                {{ $merge->merge_reason }}
                                            </span>
                                        @else
                                            <span class="text-muted">No reason provided</span>
                                        @endif
                                    </td>
                                    <td>
                                        <div class="btn-group btn-group-sm">
                                            <a href="{{ route('products.merge.show', $merge) }}" 
                                               class="btn btn-outline-primary" title="View Details">
                                                <i class="bi bi-eye"></i>
                                            </a>
                                            @if($merge->mergedProduct)
                                                <a href="{{ route('products.show', $merge->mergedProduct) }}" 
                                                   class="btn btn-outline-success" title="View Product">
                                                    <i class="bi bi-box"></i>
                                                </a>
                                            @endif
                                        </div>
                                    </td>
                                </tr>
                            @endforeach
                        </tbody>
                    </table>
                </div>

                <!-- Enhanced Pagination -->
                @if($merges->hasPages())
                    <div class="row mt-4">
                        <div class="col-md-6 d-flex align-items-center">
                            <!-- Results Info -->
                            <div class="pagination-info">
                                <span class="text-muted">
                                    Showing
                                    <strong>{{ $merges->firstItem() ?? 0 }}</strong>
                                    to
                                    <strong>{{ $merges->lastItem() ?? 0 }}</strong>
                                    of
                                    <strong>{{ $merges->total() }}</strong>
                                    merge records
                                </span>
                            </div>
                        </div>
                        <div class="col-md-6 d-flex align-items-center justify-content-end">
                            <!-- Per Page Selector -->
                            <div class="d-flex align-items-center">
                                <label for="per_page" class="form-label mb-0 me-2 text-muted">Show:</label>
                                <select id="per_page" class="form-select form-select-sm" style="width: auto;" onchange="changePerPage(this.value)">
                                    <option value="10" {{ request('per_page', 15) == 10 ? 'selected' : '' }}>10</option>
                                    <option value="15" {{ request('per_page', 15) == 15 ? 'selected' : '' }}>15</option>
                                    <option value="25" {{ request('per_page', 15) == 25 ? 'selected' : '' }}>25</option>
                                    <option value="50" {{ request('per_page', 15) == 50 ? 'selected' : '' }}>50</option>
                                </select>
                                <small class="text-muted ms-2">per page</small>
                            </div>
                        </div>
                    </div>

                    <!-- Custom Pagination Links -->
                    <div class="row">
                        <div class="col-12">
                            <nav aria-label="Merge history pagination" class="d-flex justify-content-center">
                                <ul class="pagination pagination-lg shadow-sm">
                                    {{-- First Page Link --}}
                                    @if ($merges->currentPage() > 3)
                                        <li class="page-item">
                                            <a class="page-link" href="{{ $merges->appends(request()->query())->url(1) }}"
                                               title="First Page">
                                                <i class="bi bi-chevron-double-left"></i>
                                            </a>
                                        </li>
                                    @endif

                                    {{-- Previous Page Link --}}
                                    @if ($merges->onFirstPage())
                                        <li class="page-item disabled">
                                            <span class="page-link">
                                                <i class="bi bi-chevron-left"></i>
                                            </span>
                                        </li>
                                    @else
                                        <li class="page-item">
                                            <a class="page-link" href="{{ $merges->appends(request()->query())->previousPageUrl() }}"
                                               title="Previous Page">
                                                <i class="bi bi-chevron-left"></i>
                                            </a>
                                        </li>
                                    @endif

                                    {{-- Pagination Elements --}}
                                    @foreach ($merges->appends(request()->query())->getUrlRange(max(1, $merges->currentPage() - 2), min($merges->lastPage(), $merges->currentPage() + 2)) as $page => $url)
                                        @if ($page == $merges->currentPage())
                                            <li class="page-item active">
                                                <span class="page-link bg-primary border-primary">
                                                    {{ $page }}
                                                    <span class="visually-hidden">(current)</span>
                                                </span>
                                            </li>
                                        @else
                                            <li class="page-item">
                                                <a class="page-link" href="{{ $url }}">{{ $page }}</a>
                                            </li>
                                        @endif
                                    @endforeach

                                    {{-- Next Page Link --}}
                                    @if ($merges->hasMorePages())
                                        <li class="page-item">
                                            <a class="page-link" href="{{ $merges->appends(request()->query())->nextPageUrl() }}"
                                               title="Next Page">
                                                <i class="bi bi-chevron-right"></i>
                                            </a>
                                        </li>
                                    @else
                                        <li class="page-item disabled">
                                            <span class="page-link">
                                                <i class="bi bi-chevron-right"></i>
                                            </span>
                                        </li>
                                    @endif

                                    {{-- Last Page Link --}}
                                    @if ($merges->currentPage() < $merges->lastPage() - 2)
                                        <li class="page-item">
                                            <a class="page-link" href="{{ $merges->appends(request()->query())->url($merges->lastPage()) }}"
                                               title="Last Page">
                                                <i class="bi bi-chevron-double-right"></i>
                                            </a>
                                        </li>
                                    @endif
                                </ul>
                            </nav>
                        </div>
                    </div>
                @endif
            @else
                <div class="text-center py-5">
                    <i class="bi bi-clock-history display-1 text-muted"></i>
                    <h4 class="text-muted mt-3">No Merge History</h4>
                    <p class="text-muted">No product merge operations have been performed yet.</p>
                    <a href="{{ route('products.merge.index') }}" class="btn btn-primary">
                        <i class="bi bi-arrow-down-up me-1"></i>Start Merging Products
                    </a>
                </div>
            @endif
        </div>
    </div>
</div>

@push('scripts')
<script>
// Per page functionality
function changePerPage(perPage) {
    const url = new URL(window.location);
    url.searchParams.set('per_page', perPage);
    url.searchParams.delete('page'); // Reset to first page
    window.location.href = url.toString();
}
</script>
@endpush

@push('styles')
<style>
.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 14px;
    font-weight: bold;
}

/* Enhanced Pagination Styles */
.pagination-lg .page-link {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border-radius: 0.5rem;
    margin: 0 0.125rem;
    transition: all 0.2s ease-in-out;
}

.pagination-lg .page-item.active .page-link {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    border-color: #007bff;
    box-shadow: 0 2px 4px rgba(0, 123, 255, 0.3);
    transform: translateY(-1px);
}

.pagination-lg .page-link:hover:not(.disabled) {
    background-color: #e9ecef;
    border-color: #dee2e6;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.pagination-lg .page-item.disabled .page-link {
    background-color: #f8f9fa;
    border-color: #dee2e6;
    color: #6c757d;
}

.pagination-info {
    font-size: 0.9rem;
    padding: 0.5rem 0;
}

.pagination {
    margin-bottom: 0;
}

/* Responsive pagination */
@media (max-width: 768px) {
    .pagination-lg .page-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
        margin: 0 0.05rem;
    }

    .pagination-info {
        text-align: center;
        margin-bottom: 1rem;
    }

    /* Hide some pagination elements on mobile */
    .pagination .page-item:not(.active):not(:first-child):not(:last-child):not(:nth-child(2)):not(:nth-last-child(2)) {
        display: none;
    }
}

@media (max-width: 576px) {
    .pagination-lg {
        justify-content: center;
    }

    .pagination-lg .page-link {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
    }
}
</style>
@endpush
@endsection