@extends('layouts.app')

@section('content')
<div class="container-fluid">
    <div class="row">
        <div class="col-md-12">
            <div class="card">
                <div class="card-header d-flex justify-content-between align-items-center">
                    <h4 class="mb-0">Assignments Management</h4>
                    <a href="{{ route('assignments.create') }}" class="btn btn-primary">
                        <i class="fas fa-plus"></i> Create Assignment
                    </a>
                </div>
                <div class="card-body">
                    <!-- Filters -->
                    <div class="row mb-3">
                        <div class="col-md-3">
                            <select class="form-select" id="batchFilter">
                                <option value="">All Batches</option>
                                @foreach($batches as $batch)
                                    <option value="{{ $batch->id }}" {{ request('batch_id') == $batch->id ? 'selected' : '' }}>
                                        {{ $batch->name }}
                                    </option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-3">
                            <select class="form-select" id="subjectFilter">
                                <option value="">All Subjects</option>
                                @foreach($subjects as $subject)
                                    <option value="{{ $subject->id }}" {{ request('subject_id') == $subject->id ? 'selected' : '' }}>
                                        {{ $subject->title }}
                                    </option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-3">
                            <select class="form-select" id="publishedFilter">
                                <option value="">All Status</option>
                                <option value="1" {{ request('published') == '1' ? 'selected' : '' }}>Published</option>
                                <option value="0" {{ request('published') == '0' ? 'selected' : '' }}>Unpublished</option>
                            </select>
                        </div>
                        <div class="col-md-3">
                            <button class="btn btn-outline-primary w-100" id="applyFilters">Apply Filters</button>
                        </div>
                    </div>

                    <!-- Assignments Table -->
                    <div class="table-responsive">
                        <table class="table table-bordered table-striped">
                            <thead>
                                <tr>
                                    <th>Title</th>
                                    <th>Batch</th>
                                    <th>Subject</th>
                                    <th>Teacher</th>
                                    <th>Due Date</th>
                                    <th>Max Score</th>
                                    <th>Status</th>
                                    <th>Submissions</th>
                                    <th>Actions</th>
                                </tr>
                            </thead>
                            <tbody>
                                @foreach($assignments as $assignment)
                                    <tr>
                                        <td>{{ $assignment->title }}</td>
                                        <td>{{ $assignment->batch->name }}</td>
                                        <td>{{ $assignment->subject->title }}</td>
                                        <td>{{ $assignment->teacher->user->username ?? 'N/A' }}</td>
                                        <td>{{ $assignment->due_at->format('M d, Y h:i A') }}</td>
                                        <td>{{ $assignment->max_score }}</td>
                                        <td>
                                            <span class="badge bg-{{ $assignment->published ? 'success' : 'secondary' }}">
                                                {{ $assignment->published ? 'Published' : 'Unpublished' }}
                                            </span>
                                        </td>
                                        <td>
                                            <span class="badge bg-info">
                                                {{ $assignment->submission_count }} / {{ $assignment->batch->students_count ?? 0 }}
                                            </span>
                                        </td>
                                        <td>
                                            <div class="btn-group btn-group-sm">
                                                <a href="{{ route('assignments.show', $assignment->id) }}" 
                                                   class="btn btn-info" title="View">
                                                    <i class="fas fa-eye"></i>
                                                </a>
                                                <a href="{{ route('assignments.edit', $assignment->id) }}" 
                                                   class="btn btn-warning" title="Edit">
                                                    <i class="fas fa-edit"></i>
                                                </a>
                                                <form action="{{ route('assignments.toggle-publish', $assignment->id) }}" method="POST" class="d-inline">
                                                    @csrf
                                                    @method('PATCH')
                                                    <button type="submit" class="btn btn-{{ $assignment->published ? 'secondary' : 'success' }}" 
                                                            title="{{ $assignment->published ? 'Unpublish' : 'Publish' }}">
                                                        <i class="fas fa-{{ $assignment->published ? 'eye-slash' : 'eye' }}"></i>
                                                    </button>
                                                </form>
                                                <button class="btn btn-danger delete-assignment" 
                                                        data-id="{{ $assignment->id }}" 
                                                        data-title="{{ $assignment->title }}"
                                                        title="Delete">
                                                    <i class="fas fa-trash"></i>
                                                </button>
                                            </div>
                                        </td>
                                    </tr>
                                @endforeach
                            </tbody>
                        </table>
                    </div>

                    <!-- Pagination -->
                    <div class="d-flex justify-content-center">
                        {{ $assignments->links() }}
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Delete Confirmation Modal -->
<div class="modal fade" id="deleteModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Confirm Delete</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <p>Are you sure you want to delete assignment "<span id="assignmentTitle"></span>"?</p>
                <p class="text-danger">This action cannot be undone.</p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                <form id="deleteForm" method="POST">
                    @csrf
                    @method('DELETE')
                    <button type="submit" class="btn btn-danger">Delete</button>
                </form>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
$(document).ready(function() {
    // Apply Filters
    $('#applyFilters').on('click', function() {
        const batchId = $('#batchFilter').val();
        const subjectId = $('#subjectFilter').val();
        const published = $('#publishedFilter').val();
        
        let url = '{{ route("assignments.index") }}?';
        if (batchId) url += `batch_id=${batchId}&`;
        if (subjectId) url += `subject_id=${subjectId}&`;
        if (published !== '') url += `published=${published}&`;
        
        window.location.href = url.slice(0, -1);
    });

    // Delete Assignment
    $('.delete-assignment').on('click', function() {
        const assignmentId = $(this).data('id');
        const assignmentTitle = $(this).data('title');
        
        $('#assignmentTitle').text(assignmentTitle);
        $('#deleteForm').attr('action', `/assignments/${assignmentId}`);
        $('#deleteModal').modal('show');
    });
});
</script>
@endpush