@extends('layouts.admin')

@section('title', 'Edit Past Paper')

@section('content')
<div class="container">
    <div class="mb-4">
        <a href="{{ route('admin.past-papers.index') }}" class="btn btn-secondary">← Back to Past Papers</a>
    </div>

    <h1>Edit Past Paper: {{ $pastPaper->title }}</h1>

    <div class="card">
        <div class="card-body">
            <form action="{{ route('admin.past-papers.update', $pastPaper) }}" method="POST" enctype="multipart/form-data">
                @csrf
                @method('PUT')

                <div class="mb-3">
                    <label for="class_id" class="form-label">Class *</label>
                    <select class="form-select @error('class_id') is-invalid @enderror" 
                            id="class_id" name="class_id" required>
                        <option value="">Select a class</option>
                        @foreach($classes as $class)
                            <option value="{{ $class->id }}" 
                                    {{ old('class_id', $pastPaper->class_id) == $class->id ? 'selected' : '' }}>
                                {{ $class->name }}
                            </option>
                        @endforeach
                    </select>
                    @error('class_id')
                        <div class="invalid-feedback">{{ $message }}</div>
                    @enderror
                </div>

                <div class="mb-3">
                    <label for="subject_id" class="form-label">Subject</label>
                    <select class="form-select @error('subject_id') is-invalid @enderror" 
                            id="subject_id" name="subject_id">
                        <option value="">Select a subject (optional)</option>
                        @foreach($subjects as $subject)
                            <option value="{{ $subject->id }}" 
                                    {{ old('subject_id', $pastPaper->subject_id) == $subject->id ? 'selected' : '' }}>
                                {{ $subject->classModel->name }} - {{ $subject->name }}
                            </option>
                        @endforeach
                    </select>
                    @error('subject_id')
                        <div class="invalid-feedback">{{ $message }}</div>
                    @enderror
                </div>

                <div class="mb-3">
                    <label for="title" class="form-label">Title *</label>
                    <input type="text" class="form-control @error('title') is-invalid @enderror" 
                           id="title" name="title" value="{{ old('title', $pastPaper->title) }}" required>
                    @error('title')
                        <div class="invalid-feedback">{{ $message }}</div>
                    @enderror
                </div>

                <div class="mb-3">
                    <label for="description" class="form-label">Description</label>
                    <textarea class="form-control @error('description') is-invalid @enderror" 
                              id="description" name="description" rows="3">{{ old('description', $pastPaper->description) }}</textarea>
                    @error('description')
                        <div class="invalid-feedback">{{ $message }}</div>
                    @enderror
                </div>

                <div class="mb-3">
                    <label for="file" class="form-label">File</label>
                    <input type="file" class="form-control @error('file') is-invalid @enderror" 
                           id="file" name="file" accept=".pdf,.doc,.docx">
                    <small class="form-text text-muted">
                        Current file: <strong>{{ $pastPaper->file_name }}</strong> 
                        ({{ number_format($pastPaper->file_size / 1024, 2) }} KB)
                    </small>
                    <small class="form-text text-muted d-block">Leave empty to keep current file. Accepted formats: PDF, DOC, DOCX (Max 100MB)</small>
                    @error('file')
                        <div class="invalid-feedback">{{ $message }}</div>
                    @enderror
                </div>

                <div class="row">
                    <div class="col-md-6">
                        <div class="mb-3">
                            <label for="year" class="form-label">Year</label>
                            <input type="text" class="form-control @error('year') is-invalid @enderror" 
                                   id="year" name="year" value="{{ old('year', $pastPaper->year) }}">
                            @error('year')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                    </div>
                    <div class="col-md-6">
                        <div class="mb-3">
                            <label for="term" class="form-label">Term</label>
                            <input type="text" class="form-control @error('term') is-invalid @enderror" 
                                   id="term" name="term" value="{{ old('term', $pastPaper->term) }}">
                            @error('term')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                    </div>
                </div>

                <div class="mb-3">
                    <label for="order" class="form-label">Order</label>
                    <input type="number" class="form-control @error('order') is-invalid @enderror" 
                           id="order" name="order" value="{{ old('order', $pastPaper->order) }}" min="0">
                    @error('order')
                        <div class="invalid-feedback">{{ $message }}</div>
                    @enderror
                </div>

                <div class="mb-3 form-check">
                    <input type="checkbox" class="form-check-input" id="is_active" name="is_active" 
                           value="1" {{ old('is_active', $pastPaper->is_active) ? 'checked' : '' }}>
                    <label class="form-check-label" for="is_active">
                        Active
                    </label>
                </div>

                <button type="submit" class="btn btn-primary">Update Past Paper</button>
                <a href="{{ route('admin.past-papers.index') }}" class="btn btn-secondary">Cancel</a>
            </form>
        </div>
    </div>
</div>
@endsection