@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">Cấu hình cho Exam: {{ $exam->name }}</h5>
                    <div>
                        <a href="{{ route('exam-configs.create') }}" class="btn btn-primary">
                            <i class="fas fa-plus"></i> Thêm mới
                        </a>
                        <a href="{{ route('exam-configs.index') }}" class="btn btn-secondary">
                            <i class="fas fa-arrow-left"></i> Quay lại
                        </a>
                    </div>
                </div>

                <div class="card-body">
                    <!-- Exam Info -->
                    <div class="row mb-4">
                        <div class="col-md-4">
                            <div class="card bg-light">
                                <div class="card-body">
                                    <h6 class="card-title">Thông tin Exam</h6>
                                    <p class="mb-1"><strong>Tên:</strong> {{ $exam->name }}</p>
                                    <p class="mb-1"><strong>Slug:</strong> <code>{{ $exam->slug }}</code></p>
                                    <p class="mb-0"><strong>EMS ID:</strong> 
                                        @if($exam->ems_id)
                                            <span class="badge bg-info">{{ $exam->ems_id }}</span>
                                        @else
                                            <span class="text-muted">-</span>
                                        @endif
                                    </p>
                                </div>
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="card bg-light">
                                <div class="card-body">
                                    <h6 class="card-title">Thống kê</h6>
                                    <p class="mb-1"><strong>Tổng cấu hình:</strong> <span class="badge bg-primary">{{ $examConfigs->total() }}</span></p>
                                    <p class="mb-1"><strong>Bắt buộc:</strong> <span class="badge bg-danger">{{ $examConfigs->where('is_required', true)->count() }}</span></p>
                                    <p class="mb-0"><strong>Tùy chọn:</strong> <span class="badge bg-success">{{ $examConfigs->where('is_required', false)->count() }}</span></p>
                                </div>
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="card bg-light">
                                <div class="card-body">
                                    <h6 class="card-title">Mục đích</h6>
                                    <p class="mb-0 text-muted">
                                        Cấu hình các trường thông tin mà user cần nhập khi đăng ký exam này.
                                        Ví dụ: Họ tên, Email, Số điện thoại, Ngày sinh, v.v.
                                    </p>
                                </div>
                            </div>
                        </div>
                    </div>

                    @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($examConfigs->count() > 0)
                        <div class="table-responsive">
                            <table class="table table-bordered table-striped">
                                <thead class="table-dark">
                                    <tr>
                                        <th width="5%">#</th>
                                        <th width="25%">Key</th>
                                        <th width="35%">Value</th>
                                        <th width="15%">Bắt buộc</th>
                                        <th width="20%">Thao tác</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    @foreach($examConfigs as $config)
                                        <tr>
                                            <td>{{ $examConfigs->firstItem() + $loop->index }}</td>
                                            <td>
                                                <code>{{ $config->key }}</code>
                                            </td>
                                            <td>
                                                @if($config->value)
                                                    <span class="text-break">{{ $config->value }}</span>
                                                @else
                                                    <span class="text-muted">-</span>
                                                @endif
                                            </td>
                                            <td>
                                                @if($config->is_required)
                                                    <span class="badge bg-danger">
                                                        <i class="fas fa-check"></i> Bắt buộc
                                                    </span>
                                                @else
                                                    <span class="badge bg-success">
                                                        <i class="fas fa-times"></i> Tùy chọn
                                                    </span>
                                                @endif
                                            </td>
                                            <td>
                                                <div class="btn-group" role="group">
                                                    <a href="{{ route('exam-configs.edit', $config->id) }}" 
                                                       class="btn btn-warning btn-sm" 
                                                       title="Chỉnh sửa">
                                                        <i class="fas fa-edit"></i>
                                                    </a>
                                                    <button type="button" 
                                                            class="btn btn-danger btn-sm" 
                                                            onclick="confirmDelete('{{ route('exam-configs.destroy', $config->id) }}', '{{ $config->key }}')"
                                                            title="Xóa">
                                                        <i class="fas fa-trash"></i>
                                                    </button>
                                                </div>
                                            </td>
                                        </tr>
                                    @endforeach
                                </tbody>
                            </table>
                        </div>

                        <!-- Pagination -->
                        <div class="d-flex justify-content-center">
                            {{ $examConfigs->links() }}
                        </div>
                    @else
                        <div class="text-center py-4">
                            <div class="text-muted">
                                <i class="fas fa-cog fa-3x mb-3"></i>
                                <p class="h5">Chưa có cấu hình nào</p>
                                <p>Hãy thêm cấu hình để thu thập thông tin từ user khi đăng ký exam này.</p>
                                <a href="{{ route('exam-configs.create') }}" class="btn btn-primary">
                                    <i class="fas fa-plus"></i> Thêm cấu hình đầu tiên
                                </a>
                            </div>
                        </div>
                    @endif
                </div>
            </div>
        </div>
    </div>
</div>

<script>
function confirmDelete(url, keyName) {
    if (confirm(`Bạn có chắc chắn muốn xóa cấu hình "${keyName}" không?`)) {
        // Create a form and submit
        const form = document.createElement('form');
        form.method = 'POST';
        form.action = url;
        
        // Add CSRF token
        const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
        const csrfInput = document.createElement('input');
        csrfInput.type = 'hidden';
        csrfInput.name = '_token';
        csrfInput.value = csrfToken;
        form.appendChild(csrfInput);
        
        // Add method override
        const methodInput = document.createElement('input');
        methodInput.type = 'hidden';
        methodInput.name = '_method';
        methodInput.value = 'DELETE';
        form.appendChild(methodInput);
        
        document.body.appendChild(form);
        form.submit();
    }
}
</script>
@endsection