@extends('layouts.app')

@section('title', $course->title)

@section('content')
<style>
    .page-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 1.5rem;
        flex-wrap: wrap;
        gap: 1rem;
    }
    .page-header h1 {
        font-size: 1.5rem;
        font-weight: 700;
        color: #1B2A4A;
        margin: 0;
    }
    .page-header .back-link {
        color: #1B2A4A;
        text-decoration: none;
        font-size: 0.9rem;
        display: inline-flex;
        align-items: center;
        gap: 0.3rem;
        transition: color 0.2s;
    }
    .page-header .back-link:hover {
        color: #E8502F;
    }
    .stats-row {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 1rem;
        margin-bottom: 1.5rem;
    }
    .stat-card {
        background: #fff;
        border-radius: 12px;
        padding: 1.25rem;
        box-shadow: 0 1px 4px rgba(0,0,0,0.06);
        display: flex;
        align-items: center;
        gap: 1rem;
        cursor: pointer;
        transition: transform 0.15s, box-shadow 0.15s;
    }
    .stat-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    .stat-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.4rem;
        flex-shrink: 0;
    }
    .stat-icon.blue { background: rgba(27,42,74,0.1); color: #1B2A4A; }
    .stat-icon.orange { background: rgba(232,80,47,0.1); color: #E8502F; }
    .stat-icon.green { background: rgba(16,185,129,0.1); color: #10b981; }
    .stat-icon.purple { background: rgba(139,92,246,0.1); color: #8b5cf6; }
    .stat-card .stat-info h3 {
        font-size: 0.8rem;
        color: #6b7280;
        margin: 0 0 0.25rem;
        font-weight: 500;
    }
    .stat-card .stat-info .stat-value {
        font-size: 1.5rem;
        font-weight: 700;
        color: #1B2A4A;
    }
    .card {
        background: #fff;
        border-radius: 12px;
        box-shadow: 0 1px 4px rgba(0,0,0,0.06);
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    .card h2 {
        font-size: 1.1rem;
        font-weight: 700;
        color: #1B2A4A;
        margin: 0 0 1rem;
        padding-bottom: 0.75rem;
        border-bottom: 2px solid #f3f4f6;
    }
    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .data-table {
        width: 100%;
        border-collapse: collapse;
        white-space: nowrap;
    }
    .data-table th {
        background: #f9fafb;
        color: #1B2A4A;
        font-weight: 600;
        font-size: 0.8rem;
        padding: 0.75rem 1rem;
        text-align: right;
        border-bottom: 2px solid #e5e7eb;
    }
    .data-table td {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
        color: #374151;
        border-bottom: 1px solid #f3f4f6;
        vertical-align: middle;
    }
    .data-table tr:hover td {
        background: #fafbfc;
    }
    .badge {
        display: inline-block;
        padding: 0.25rem 0.75rem;
        border-radius: 9999px;
        font-size: 0.75rem;
        font-weight: 600;
    }
    .badge-success { background: #d1fae5; color: #065f46; }
    .badge-warning { background: #fef3c7; color: #92400e; }
    .badge-danger { background: #fee2e2; color: #991b1b; }
    .badge-info { background: #dbeafe; color: #1e40af; }
    .badge-secondary { background: #f3f4f6; color: #4b5563; }
    .btn-primary {
        background: #E8502F;
        color: #fff;
        border: none;
        padding: 0.5rem 1.25rem;
        border-radius: 8px;
        font-size: 0.85rem;
        font-weight: 600;
        cursor: pointer;
        transition: background 0.2s;
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
    }
    .btn-primary:hover {
        background: #d4441f;
    }
    .btn-sm {
        padding: 0.35rem 0.75rem;
        font-size: 0.78rem;
    }
    .empty-state {
        text-align: center;
        padding: 3rem 1rem;
        color: #9ca3af;
    }
    .empty-state i {
        font-size: 3rem;
        margin-bottom: 1rem;
        display: block;
    }
    .stat-modal-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 1000;
        align-items: center;
        justify-content: center;
        padding: 1rem;
    }
    .stat-modal-overlay.active {
        display: flex;
    }
    .stat-modal {
        background: #fff;
        border-radius: 16px;
        padding: 1.5rem;
        width: 100%;
        max-width: 550px;
        max-height: 85vh;
        overflow-y: auto;
        position: relative;
        box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    }
    .stat-modal h3 {
        font-size: 1.1rem;
        font-weight: 700;
        color: #1B2A4A;
        margin: 0 0 1.25rem;
        padding-bottom: 0.75rem;
        border-bottom: 2px solid #f3f4f6;
    }
    .stat-modal .close-btn {
        position: absolute;
        top: 1rem;
        left: 1rem;
        background: #f3f4f6;
        border: none;
        width: 32px;
        height: 32px;
        border-radius: 50%;
        cursor: pointer;
        font-size: 1.1rem;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #6b7280;
        transition: background 0.2s;
    }
    .stat-modal .close-btn:hover {
        background: #e5e7eb;
    }
    .form-group {
        margin-bottom: 1rem;
    }
    .form-group label {
        display: block;
        font-size: 0.8rem;
        font-weight: 600;
        color: #374151;
        margin-bottom: 0.35rem;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
        width: 100%;
        padding: 0.6rem 0.75rem;
        border: 1px solid #d1d5db;
        border-radius: 8px;
        font-size: 0.85rem;
        transition: border-color 0.2s;
        box-sizing: border-box;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
        outline: none;
        border-color: #E8502F;
        box-shadow: 0 0 0 3px rgba(232,80,47,0.1);
    }
    .info-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
    }
    .info-item {
        padding: 0.75rem;
        background: #f9fafb;
        border-radius: 8px;
    }
    .info-item .info-label {
        font-size: 0.75rem;
        color: #6b7280;
        margin-bottom: 0.25rem;
        font-weight: 500;
    }
    .info-item .info-value {
        font-size: 0.9rem;
        font-weight: 600;
        color: #1B2A4A;
    }
    .inline-form {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        flex-wrap: wrap;
    }
    .inline-form select,
    .inline-form input {
        padding: 0.35rem 0.5rem;
        border: 1px solid #d1d5db;
        border-radius: 6px;
        font-size: 0.8rem;
    }
</style>

<div class="page-header">
    <div>
        <a href="/training" class="back-link">→ العودة إلى التدريب</a>
        <h1>{{ $course->title }}</h1>
    </div>
</div>

{{-- Course Info Card --}}
<div class="card">
    <h2>معلومات الدورة</h2>
    <div class="info-grid">
        <div class="info-item">
            <div class="info-label">عنوان الدورة</div>
            <div class="info-value">{{ $course->title }}</div>
        </div>
        <div class="info-item">
            <div class="info-label">المدرب</div>
            <div class="info-value">{{ $course->trainer ?? '—' }}</div>
        </div>
        <div class="info-item">
            <div class="info-label">النوع</div>
            <div class="info-value">{{ $course->type ?? '—' }}</div>
        </div>
        <div class="info-item">
            <div class="info-label">تاريخ البداية</div>
            <div class="info-value">{{ $course->start_date ? \Carbon\Carbon::parse($course->start_date)->format('Y-m-d') : '—' }}</div>
        </div>
        <div class="info-item">
            <div class="info-label">تاريخ النهاية</div>
            <div class="info-value">{{ $course->end_date ? \Carbon\Carbon::parse($course->end_date)->format('Y-m-d') : '—' }}</div>
        </div>
        <div class="info-item">
            <div class="info-label">الموقع</div>
            <div class="info-value">{{ $course->location ?? '—' }}</div>
        </div>
        <div class="info-item">
            <div class="info-label">الحد الأقصى للمشاركين</div>
            <div class="info-value">{{ $course->max_participants ?? '—' }}</div>
        </div>
        <div class="info-item">
            <div class="info-label">إلزامية</div>
            <div class="info-value">
                @if($course->is_mandatory)
                    <span class="badge badge-danger">إلزامية</span>
                @else
                    <span class="badge badge-secondary">اختيارية</span>
                @endif
            </div>
        </div>
        <div class="info-item">
            <div class="info-label">التكلفة</div>
            <div class="info-value">{{ $course->cost ? number_format($course->cost, 2) . ' ر.س' : 'مجاني' }}</div>
        </div>
        <div class="info-item">
            <div class="info-label">الحالة</div>
            <div class="info-value">
                @if($course->status === 'active')
                    <span class="badge badge-success">نشطة</span>
                @elseif($course->status === 'completed')
                    <span class="badge badge-info">مكتملة</span>
                @elseif($course->status === 'cancelled')
                    <span class="badge badge-danger">ملغية</span>
                @else
                    <span class="badge badge-secondary">{{ $course->status }}</span>
                @endif
            </div>
        </div>
    </div>
</div>

{{-- Enroll Employees --}}
<div class="card">
    <h2>تسجيل موظفين</h2>
    <form action="/training/{{ $course->id }}/enroll" method="POST">
        @csrf
        <div class="form-group">
            <label for="employee_id">اختر الموظف</label>
            <select name="employee_id" id="employee_id" required>
                <option value="">-- اختر موظف --</option>
                @if(isset($employees))
                    @foreach($employees as $employee)
                        <option value="{{ $employee->id }}">{{ $employee->name }}</option>
                    @endforeach
                @endif
            </select>
        </div>
        <button type="submit" class="btn-primary">
            <i class="fas fa-user-plus"></i> تسجيل الموظف
        </button>
    </form>
</div>

{{-- Enrollments Table --}}
<div class="card">
    <h2>المسجلون في الدورة</h2>
    @if($enrollments->count() > 0)
        <div class="table-wrapper">
            <table class="data-table">
                <thead>
                    <tr>
                        <th>#</th>
                        <th>الموظف</th>
                        <th>الحالة</th>
                        <th>تاريخ الإكمال</th>
                        <th>الدرجة</th>
                        <th>إجراءات</th>
                    </tr>
                </thead>
                <tbody>
                    @foreach($enrollments as $index => $enrollment)
                        <tr>
                            <td>{{ $index + 1 }}</td>
                            <td>{{ $enrollment->employee_name }}</td>
                            <td>
                                @if($enrollment->status === 'completed')
                                    <span class="badge badge-success">مكتمل</span>
                                @elseif($enrollment->status === 'in_progress')
                                    <span class="badge badge-warning">قيد التنفيذ</span>
                                @elseif($enrollment->status === 'enrolled')
                                    <span class="badge badge-info">مسجل</span>
                                @elseif($enrollment->status === 'failed')
                                    <span class="badge badge-danger">راسب</span>
                                @elseif($enrollment->status === 'withdrawn')
                                    <span class="badge badge-secondary">منسحب</span>
                                @else
                                    <span class="badge badge-secondary">{{ $enrollment->status }}</span>
                                @endif
                            </td>
                            <td>{{ $enrollment->completion_date ? \Carbon\Carbon::parse($enrollment->completion_date)->format('Y-m-d') : '—' }}</td>
                            <td>{{ $enrollment->score ?? '—' }}</td>
                            <td>
                                <button class="btn-primary btn-sm" onclick="openStatModal('enrollment-{{ $enrollment->id }}')">
                                    <i class="fas fa-edit"></i> تحديث
                                </button>
                            </td>
                        </tr>

                        {{-- Update Status Modal --}}
                        <div class="stat-modal-overlay" id="modal-enrollment-{{ $enrollment->id }}">
                            <div class="stat-modal">
                                <button class="close-btn" onclick="closeStatModal('enrollment-{{ $enrollment->id }}')">&times;</button>
                                <h3>تحديث حالة التسجيل - {{ $enrollment->employee_name }}</h3>
                                <form action="/training/enrollments/{{ $enrollment->id }}/status" method="POST">
                                    @csrf
                                    <div class="form-group">
                                        <label for="status_{{ $enrollment->id }}">الحالة</label>
                                        <select name="status" id="status_{{ $enrollment->id }}" required>
                                            <option value="enrolled" {{ $enrollment->status === 'enrolled' ? 'selected' : '' }}>مسجل</option>
                                            <option value="in_progress" {{ $enrollment->status === 'in_progress' ? 'selected' : '' }}>قيد التنفيذ</option>
                                            <option value="completed" {{ $enrollment->status === 'completed' ? 'selected' : '' }}>مكتمل</option>
                                            <option value="failed" {{ $enrollment->status === 'failed' ? 'selected' : '' }}>راسب</option>
                                            <option value="withdrawn" {{ $enrollment->status === 'withdrawn' ? 'selected' : '' }}>منسحب</option>
                                        </select>
                                    </div>
                                    <div class="form-group">
                                        <label for="score_{{ $enrollment->id }}">الدرجة</label>
                                        <input type="number" name="score" id="score_{{ $enrollment->id }}" value="{{ $enrollment->score }}" min="0" max="100" step="0.1" placeholder="0 - 100">
                                    </div>
                                    <div class="form-group">
                                        <label for="completion_date_{{ $enrollment->id }}">تاريخ الإكمال</label>
                                        <input type="date" name="completion_date" id="completion_date_{{ $enrollment->id }}" value="{{ $enrollment->completion_date ? \Carbon\Carbon::parse($enrollment->completion_date)->format('Y-m-d') : '' }}">
                                    </div>
                                    <button type="submit" class="btn-primary">
                                        <i class="fas fa-save"></i> حفظ التحديث
                                    </button>
                                </form>
                            </div>
                        </div>
                    @endforeach
                </tbody>
            </table>
        </div>
    @else
        <div class="empty-state">
            <i class="fas fa-users"></i>
            <p>لا يوجد موظفون مسجلون في هذه الدورة بعد</p>
        </div>
    @endif
</div>

<script>
    function openStatModal(id) {
        const modal = document.getElementById('modal-' + id);
        if (modal) modal.classList.add('active');
    }
    function closeStatModal(id) {
        const modal = document.getElementById('modal-' + id);
        if (modal) modal.classList.remove('active');
    }
    document.querySelectorAll('.stat-modal-overlay').forEach(function(overlay) {
        overlay.addEventListener('click', function(e) {
            if (e.target === overlay) {
                overlay.classList.remove('active');
            }
        });
    });
</script>
@endsection