@extends('layouts.app')

@section('title', 'Study Materials')
@section('page-title', 'Knowledge Base & Study Materials')

@section('styles')
<style>
    .material-card {
        transition: transform 0.2s;
        border-radius: 10px;
        overflow: hidden;
    }
    .material-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }
    .material-stats {
        font-size: 0.75rem;
        color: #6c757d;
    }
</style>
@endsection

@section('content')
<div class="row">
    <div class="col-md-12 mb-3">
        <div class="card">
            <div class="card-header d-flex justify-content-between align-items-center">
                <h6 class="mb-0"><i class="fas fa-book me-2"></i>Study Materials Library</h6>
                <a href="{{ route('study-materials.create') }}" class="btn btn-sm btn-primary">
                    <i class="fas fa-plus me-1"></i> Add New Material
                </a>
            </div>
            <div class="card-body">
                <!-- Search and Filter -->
                <form method="GET" action="{{ route('study-materials.index') }}" class="mb-4">
                    <div class="row">
                        <div class="col-md-3 mb-2">
                            <input type="text" name="search" class="form-control form-control-sm" 
                                   placeholder="Search by title, description..." 
                                   value="{{ request('search') }}">
                        </div>
                        <div class="col-md-3 mb-2">
                            <select name="category" class="form-control form-control-sm">
                                <option value="">All Categories</option>
                                @foreach($categories as $key => $cat)
                                    <option value="{{ $key }}" {{ request('category') == $key ? 'selected' : '' }}>
                                        {{ $cat }}
                                    </option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-3 mb-2">
                            <select name="type" class="form-control form-control-sm">
                                <option value="">All Types</option>
                                @foreach($types as $key => $type)
                                    <option value="{{ $key }}" {{ request('type') == $key ? 'selected' : '' }}>
                                        {{ $type }}
                                    </option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-3 mb-2">
                            <button type="submit" class="btn btn-sm btn-primary w-100">
                                <i class="fas fa-search"></i> Filter
                            </button>
                        </div>
                    </div>
                </form>
                
                <!-- Materials Grid -->
                @if($materials->count() > 0)
                    <div class="row">
                        @foreach($materials as $material)
                            <div class="col-md-6 col-lg-4 mb-3">
                                <div class="card material-card h-100">
                                    <div class="card-body">
                                        <div class="d-flex justify-content-between align-items-start mb-2">
                                            <span class="badge bg-{{ $material->getCategoryBadge() }}">
                                                {{ ucfirst($material->category_type) }}
                                            </span>
                                            <span class="badge bg-secondary">
                                                <i class="{{ $material->getTypeIcon() }}"></i> {{ ucfirst($material->type) }}
                                            </span>
                                        </div>
                                        
                                        <h6 class="card-title">
                                            <a href="{{ route('study-materials.show', $material->id) }}" class="text-decoration-none">
                                                {{ Str::limit($material->title, 50) }}
                                            </a>
                                        </h6>
                                        
                                        <p class="card-text small text-muted">
                                            {{ Str::limit($material->description ?? 'No description', 100) }}
                                        </p>
                                        
                                        <div class="material-stats">
                                            <span><i class="fas fa-eye"></i> {{ $material->views_count }}</span>
                                            <span class="ms-2"><i class="fas fa-download"></i> {{ $material->downloads_count }}</span>
                                            <span class="ms-2"><i class="fas fa-tasks"></i> {{ $material->activities->count() }} used</span>
                                        </div>
                                    </div>
                                    <div class="card-footer bg-transparent">
                                        <div class="d-flex justify-content-between">
                                            <small class="text-muted">
                                                <i class="fas fa-user"></i> {{ $material->creator->name ?? 'N/A' }}
                                            </small>
                                            <div>
                                                @if($material->file_path)
                                                    <a href="{{ route('study-materials.download', $material->id) }}" class="btn btn-sm btn-success me-1">
                                                        <i class="fas fa-download"></i>
                                                    </a>
                                                @endif
                                                @if(!$material->isBeingUsed())
                                                    <a href="{{ route('study-materials.edit', $material->id) }}" class="btn btn-sm btn-warning me-1">
                                                        <i class="fas fa-edit"></i>
                                                    </a>
                                                    <button type="button" class="btn btn-sm btn-danger" data-bs-toggle="modal" data-bs-target="#deleteModal{{ $material->id }}">
                                                        <i class="fas fa-trash"></i>
                                                    </button>
                                                @else
                                                    <span class="badge bg-info" title="Used in tasks - Cannot edit/delete">
                                                        <i class="fas fa-lock"></i> In Use
                                                    </span>
                                                @endif
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            </div>
                            
                            <!-- Delete Modal -->
                            <div class="modal fade" id="deleteModal{{ $material->id }}" tabindex="-1">
                                <div class="modal-dialog">
                                    <form method="POST" action="{{ route('study-materials.destroy', $material->id) }}">
                                        @csrf
                                        @method('DELETE')
                                        <div class="modal-content">
                                            <div class="modal-header">
                                                <h5 class="modal-title">Delete Study Material</h5>
                                                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                                            </div>
                                            <div class="modal-body">
                                                Are you sure you want to delete <strong>{{ $material->title }}</strong>?
                                            </div>
                                            <div class="modal-footer">
                                                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                                                <button type="submit" class="btn btn-danger">Delete</button>
                                            </div>
                                        </div>
                                    </form>
                                </div>
                            </div>
                        @endforeach
                    </div>
                    <div class="d-flex justify-content-center mt-4">
                        {{ $materials->appends(request()->query())->links() }}
                    </div>
                @else
                    <div class="text-center py-5">
                        <i class="fas fa-book fa-4x text-muted mb-3"></i>
                        <p class="text-muted">No study materials found.</p>
                        <a href="{{ route('study-materials.create') }}" class="btn btn-primary">Add Your First Material</a>
                    </div>
                @endif
            </div>
        </div>
    </div>
</div>
@endsection