@extends('layouts.teacher')

@section('title', 'Pengumpulan Tugas - ' . $assignment->title)

@section('header', 'Pengumpulan Tugas')

@section('breadcrumb')
    <a href="{{ route('teacher.courses.index') }}">Kursus</a>
    <span class="breadcrumb-sep">/</span>
    <a href="{{ route('teacher.courses.show', $course) }}">{{ $course->title }}</a>
    <span class="breadcrumb-sep">/</span>
    <a href="{{ route('teacher.courses.assignments.index', $course) }}">Tugas</a>
    <span class="breadcrumb-sep">/</span>
    <span>{{ $assignment->title }}</span>
    <span class="breadcrumb-sep">/</span>
    <span>Pengumpulan</span>
@endsection

@section('content')
<div class="container mx-auto px-4 py-6">
    <div class="mb-6">
        <div class="flex justify-between items-start">
            <div>
                <h1 class="text-2xl font-bold text-[var(--navy)]">Pengumpulan Tugas</h1>
                <p class="text-gray-500 mt-1">Tugas: {{ $assignment->title }}</p>
                <div class="flex items-center gap-4 mt-2 text-sm">
                    <span class="text-gray-500">
                        <i class="fas fa-calendar mr-1"></i> 
                        Tenggat: {{ $assignment->due_date ? $assignment->due_date->format('d M Y H:i') : 'Tidak ada' }}
                    </span>
                    <span class="text-gray-500">
                        <i class="fas fa-users mr-1"></i> 
                        Total Pengumpulan: {{ $submissions->count() }}
                    </span>
                </div>
            </div>
            <a href="{{ route('teacher.courses.assignments.index', $course) }}" 
               class="bg-gray-200 text-gray-700 px-4 py-2 rounded-lg hover:bg-gray-300 transition">
                <i class="fas fa-arrow-left mr-2"></i> Kembali
            </a>
        </div>
    </div>

    <div class="bg-white rounded-lg shadow-sm border border-[var(--border)] overflow-hidden">
        <div class="overflow-x-auto">
            <table class="min-w-full divide-y divide-[var(--border)]">
                <thead class="bg-[var(--cream)]">
                    <tr>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">No</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Siswa</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">NIS</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Tanggal Kumpul</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">File</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Nilai</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Status</th>
                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Aksi</th>
                    </tr>
                </thead>
                <tbody class="divide-y divide-[var(--border)]">
                    @forelse($submissions as $index => $submission)
                    <tr class="hover:bg-gray-50 transition">
                        <td class="px-6 py-4 text-sm text-gray-500">{{ $index + 1 }}</td>
                        <td class="px-6 py-4">
                            <div class="font-medium text-[var(--navy)]">{{ $submission->student->name ?? 'N/A' }}</div>
                        </td>
                        <td class="px-6 py-4 text-sm text-gray-500">{{ $submission->student->nis ?? '-' }}</td>
                        <td class="px-6 py-4 text-sm text-gray-500">
                            {{ $submission->submitted_at ? $submission->submitted_at->format('d M Y H:i') : '-' }}
                        </td>
                        <td class="px-6 py-4">
                            @if($submission->file_path)
                                <a href="{{ Storage::url($submission->file_path) }}" 
                                   target="_blank"
                                   class="text-[var(--gold)] hover:underline text-sm">
                                    <i class="fas fa-download mr-1"></i> Lihat
                                </a>
                            @else
                                <span class="text-gray-400 text-sm">-</span>
                            @endif
                        </td>
                        <td class="px-6 py-4">
                            @if($submission->grade !== null)
                                <span class="font-semibold text-green-600">{{ $submission->grade }}</span>
                            @else
                                <span class="text-gray-400">Belum dinilai</span>
                            @endif
                        </td>
                        <td class="px-6 py-4">
                            @if($submission->submitted_at)
                                <span class="inline-flex items-center px-2 py-1 rounded-full text-xs font-medium bg-green-100 text-green-800">
                                    <i class="fas fa-check-circle mr-1 text-xs"></i> Sudah Kumpul
                                </span>
                            @else
                                <span class="inline-flex items-center px-2 py-1 rounded-full text-xs font-medium bg-yellow-100 text-yellow-800">
                                    <i class="fas fa-clock mr-1 text-xs"></i> Belum Kumpul
                                </span>
                            @endif
                        </td>
                        <td class="px-6 py-4">
                            <button onclick="openGradeModal({{ $submission->id }}, '{{ $submission->student->name }}', {{ $submission->grade ?? 'null' }})"
                                    class="text-[var(--gold)] hover:text-[var(--gold-2)] transition">
                                <i class="fas fa-edit mr-1"></i> Beri Nilai
                            </button>
                        </td>
                    </tr>
                    @empty
                    <tr>
                        <td colspan="8" class="px-6 py-12 text-center text-gray-500">
                            <div class="text-6xl mb-4">📋</div>
                            <p>Belum ada pengumpulan tugas</p>
                        </td>
                    </tr>
                    @endforelse
                </tbody>
            </table>
        </div>
    </div>
</div>

{{-- Modal Beri Nilai --}}
<div id="gradeModal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50" style="display: none;">
    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4">
        <div class="p-6">
            <div class="flex justify-between items-center mb-4">
                <h3 class="text-lg font-semibold text-[var(--navy)]">Beri Nilai</h3>
                <button onclick="closeGradeModal()" class="text-gray-400 hover:text-gray-600">
                    <i class="fas fa-times"></i>
                </button>
            </div>
            <form id="gradeForm" method="POST" action="">
                @csrf
                @method('PATCH')
                <div class="mb-4">
                    <label class="block text-sm font-medium text-gray-700 mb-2">Siswa</label>
                    <p id="studentName" class="text-[var(--navy)] font-medium"></p>
                </div>
                <div class="mb-4">
                    <label class="block text-sm font-medium text-gray-700 mb-2">Nilai</label>
                    <input type="number" 
                           name="grade" 
                           id="gradeValue"
                           min="0" 
                           max="100" 
                           step="1"
                           class="w-full px-3 py-2 border border-[var(--border)] rounded-lg focus:outline-none focus:border-[var(--gold)]"
                           required>
                </div>
                <div class="flex gap-3 mt-6">
                    <button type="submit" class="bg-[var(--gold)] text-[var(--navy)] px-6 py-2 rounded-lg font-semibold hover:bg-[var(--gold-2)] transition">
                        <i class="fas fa-save mr-2"></i> Simpan
                    </button>
                    <button type="button" onclick="closeGradeModal()" class="bg-gray-200 text-gray-700 px-6 py-2 rounded-lg font-semibold hover:bg-gray-300 transition">
                        Batal
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

<script>
    function openGradeModal(submissionId, studentName, currentGrade) {
        const modal = document.getElementById('gradeModal');
        const form = document.getElementById('gradeForm');
        const studentNameSpan = document.getElementById('studentName');
        const gradeInput = document.getElementById('gradeValue');
        
        form.action = `/teacher/submissions/${submissionId}/grade`;
        studentNameSpan.textContent = studentName;
        gradeInput.value = currentGrade !== null ? currentGrade : '';
        
        modal.style.display = 'flex';
        modal.classList.add('flex');
        modal.classList.remove('hidden');
    }
    
    function closeGradeModal() {
        const modal = document.getElementById('gradeModal');
        modal.style.display = 'none';
        modal.classList.remove('flex');
        modal.classList.add('hidden');
    }
    
    // Close modal when clicking outside
    document.getElementById('gradeModal').addEventListener('click', function(e) {
        if (e.target === this) {
            closeGradeModal();
        }
    });
</script>
@endsection