@extends('layouts.admin')
@section('title','Topics')
@section('page-title','Topics')

@section('content')
<div class="row g-4">

    {{-- Add Topic Form --}}
    <div class="col-lg-4">
        <div class="card border-0 shadow-sm">
            <div class="card-header bg-white py-3 border-bottom">
                <h6 class="fw-bold mb-0"><i class="bi bi-plus-circle me-2 text-primary"></i>Add New Topic</h6>
            </div>
            <div class="card-body p-4">
                <form method="POST" action="{{ route('admin.topics.store') }}">
                    @csrf
                    <div class="mb-3">
                        <label class="form-label fw-semibold">Subject <span class="text-danger">*</span></label>
                        <select name="subject_id" class="form-select @error('subject_id') is-invalid @enderror" required>
                            <option value="">-- Select Subject --</option>
                            @foreach($subjects as $subject)
                                <option value="{{ $subject->id }}" {{ old('subject_id') == $subject->id ? 'selected' : '' }}>
                                    {{ $subject->name }}
                                </option>
                            @endforeach
                        </select>
                        @error('subject_id')<div class="invalid-feedback">{{ $message }}</div>@enderror
                    </div>
                    <div class="mb-4">
                        <label class="form-label fw-semibold">Topic Name <span class="text-danger">*</span></label>
                        <input type="text" name="name" class="form-control @error('name') is-invalid @enderror"
                               value="{{ old('name') }}" placeholder="e.g. Quadratic Equations" required>
                        @error('name')<div class="invalid-feedback">{{ $message }}</div>@enderror
                    </div>
                    <button type="submit" class="btn btn-primary w-100">
                        <i class="bi bi-plus-lg me-1"></i>Add Topic
                    </button>
                </form>
            </div>
        </div>
    </div>

    {{-- Topics List --}}
    <div class="col-lg-8">
        <div class="card border-0 shadow-sm">
            <div class="card-header bg-white py-3 border-bottom d-flex justify-content-between align-items-center">
                <h6 class="fw-bold mb-0">All Topics</h6>
                <span class="badge bg-primary">{{ $topics->total() }} topics</span>
            </div>
            <div class="table-responsive">
                <table class="table table-hover align-middle mb-0">
                    <thead class="table-light">
                        <tr>
                            <th>Topic Name</th>
                            <th>Subject</th>
                            <th class="text-center">Questions</th>
                            <th class="text-center">Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        @forelse($topics as $topic)
                        <tr>
                            <td class="fw-semibold">{{ $topic->name }}</td>
                            <td><span class="badge bg-secondary">{{ $topic->subject->code }}</span> {{ $topic->subject->name }}</td>
                            <td class="text-center">
                                <span class="badge bg-primary rounded-pill">{{ $topic->questions_count }}</span>
                            </td>
                            <td class="text-center">
                                <div class="d-flex justify-content-center gap-1">
                                    {{-- Inline Edit via Modal --}}
                                    <button class="btn btn-sm btn-outline-primary"
                                            data-bs-toggle="modal"
                                            data-bs-target="#editModal"
                                            data-id="{{ $topic->id }}"
                                            data-name="{{ $topic->name }}"
                                            data-subject="{{ $topic->subject_id }}">
                                        <i class="bi bi-pencil"></i>
                                    </button>
                                    <form method="POST" action="{{ route('admin.topics.destroy', $topic) }}"
                                          onsubmit="return confirm('Delete topic {{ $topic->name }}?')">
                                        @csrf @method('DELETE')
                                        <button class="btn btn-sm btn-outline-danger"><i class="bi bi-trash"></i></button>
                                    </form>
                                </div>
                            </td>
                        </tr>
                        @empty
                        <tr>
                            <td colspan="4" class="text-center py-5 text-muted">
                                No topics yet. Add your first topic using the form.
                            </td>
                        </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
            @if($topics->hasPages())
            <div class="card-footer bg-white border-top">
                {{ $topics->links() }}
            </div>
            @endif
        </div>
    </div>
</div>

{{-- Edit Topic Modal --}}
<div class="modal fade" id="editModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h6 class="modal-title fw-bold">Edit Topic</h6>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form method="POST" id="editForm" action="">
                @csrf @method('PUT')
                <div class="modal-body">
                    <div class="mb-3">
                        <label class="form-label fw-semibold">Subject</label>
                        <select name="subject_id" id="editSubject" class="form-select" required>
                            @foreach($subjects as $subject)
                                <option value="{{ $subject->id }}">{{ $subject->name }}</option>
                            @endforeach
                        </select>
                    </div>
                    <div class="mb-3">
                        <label class="form-label fw-semibold">Topic Name</label>
                        <input type="text" name="name" id="editName" class="form-control" required>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-light" data-bs-dismiss="modal">Cancel</button>
                    <button type="submit" class="btn btn-primary">Update Topic</button>
                </div>
            </form>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
document.getElementById('editModal').addEventListener('show.bs.modal', function (e) {
    const btn     = e.relatedTarget;
    const id      = btn.dataset.id;
    const name    = btn.dataset.name;
    const subject = btn.dataset.subject;

    document.getElementById('editForm').action = '/admin/topics/' + id;
    document.getElementById('editName').value  = name;
    document.getElementById('editSubject').value = subject;
});
</script>
@endpush