@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-12">
            <div class="card">
                <div class="card-header d-flex justify-content-between align-items-center">
                    <h5 class="mb-0">Quản lý Cấu hình Exam</h5>
                    <a href="{{ route('exam-configs.create') }}" class="btn btn-primary">
                        <i class="fas fa-plus"></i> Thêm mới
                    </a>
                </div>

                <div class="card-body">
                    @if (session('success'))
                        <div class="alert alert-success alert-dismissible fade show" role="alert">
                            {{ session('success') }}
                            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                        </div>
                    @endif

                    @if (session('error'))
                        <div class="alert alert-danger alert-dismissible fade show" role="alert">
                            {{ session('error') }}
                            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                        </div>
                    @endif

                    @if($exams->count() > 0)
                        <div class="table-responsive">
                            <table class="table table-bordered table-striped">
                                <thead class="table-dark">
                                    <tr>
                                        <th width="5%">#</th>
                                        <th width="25%">Exam</th>
                                        <th width="15%">Slug</th>
                                        <th width="10%">EMS ID</th>
                                        <th width="20%">Số cấu hình</th>
                                        <th width="25%">Thao tác</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    @foreach($exams as $exam)
                                        <tr>
                                            <td>{{ $exams->firstItem() + $loop->index }}</td>
                                            <td>
                                                <strong>{{ $exam->name }}</strong>
                                            </td>
                                            <td>
                                                <code>{{ $exam->slug }}</code>
                                            </td>
                                            <td>
                                                @if($exam->ems_id)
                                                    <span class="badge bg-info">{{ $exam->ems_id }}</span>
                                                @else
                                                    <span class="text-muted">-</span>
                                                @endif
                                            </td>
                                            <td>
                                                <span class="badge bg-primary">
                                                    {{ $exam->examConfigs->count() }} cấu hình
                                                </span>
                                            </td>
                                            <td>
                                                <div class="btn-group" role="group">
                                                    <a href="{{ route('exam-configs.exam', $exam->id) }}" 
                                                       class="btn btn-info btn-sm" 
                                                       title="Xem cấu hình">
                                                        <i class="fas fa-cog"></i>
                                                    </a>
                                                    <a href="{{ route('exam-configs.show', $exam->id) }}" 
                                                       class="btn btn-success btn-sm" 
                                                       title="Chi tiết">
                                                        <i class="fas fa-eye"></i>
                                                    </a>
                                                </div>
                                            </td>
                                        </tr>
                                    @endforeach
                                </tbody>
                            </table>
                        </div>

                        <!-- Pagination -->
                        <div class="d-flex justify-content-center">
                            {{ $exams->links() }}
                        </div>
                    @else
                        <div class="text-center py-4">
                            <div class="text-muted">
                                <i class="fas fa-inbox fa-3x mb-3"></i>
                                <p class="h5">Chưa có exam nào</p>
                                <p>Hãy tạo exam trước khi cấu hình.</p>
                                <a href="{{ route('exams.create') }}" class="btn btn-primary">
                                    <i class="fas fa-plus"></i> Tạo Exam
                                </a>
                            </div>
                        </div>
                    @endif
                </div>
            </div>
        </div>
    </div>
</div>
@endsection