@extends('layouts.app')

@section('content')
<div class="container-fluid">
    <div class="row">
        <div class="col-md-8 offset-md-2">
            <div class="card shadow-sm">
                <div class="card-header bg-primary text-white">
                    <h4 class="mb-0">
                        <i class="fas fa-edit me-2"></i> Edit Assignment
                    </h4>
                </div>
                <div class="card-body">
                    <form action="{{ route('assignments.update', $assignment->id) }}" method="POST">
                        @csrf
                        @method('PUT')

                        <div class="row">
                            <div class="col-md-4">
                                <div class="mb-3">
                                    <label for="batch_id" class="form-label">Batch *</label>
                                    <select class="form-select @error('batch_id') is-invalid @enderror" id="batch_id" name="batch_id" required>
                                        <option value="">Select Batch</option>
                                        @foreach($batches as $batch)
                                            <option value="{{ $batch->id }}" {{ old('batch_id', $assignment->batch_id) == $batch->id ? 'selected' : '' }}>
                                                {{ $batch->name }}
                                            </option>
                                        @endforeach
                                    </select>
                                    @error('batch_id')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-md-4">
                                <div class="mb-3">
                                    <label for="subject_id" class="form-label">Subject *</label>
                                    <select class="form-select @error('subject_id') is-invalid @enderror" id="subject_id" name="subject_id" required>
                                        <option value="">Select Subject</option>
                                        @foreach($subjects as $subject)
                                            <option value="{{ $subject->id }}" {{ old('subject_id', $assignment->subject_id) == $subject->id ? 'selected' : '' }}>
                                                {{ $subject->title }}
                                            </option>
                                        @endforeach
                                    </select>
                                    @error('subject_id')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-md-4">
                                <div class="mb-3">
                                    <label for="teacher_id" class="form-label">Teacher *</label>
                                    <select class="form-select @error('teacher_id') is-invalid @enderror" id="teacher_id" name="teacher_id" required>
                                        <option value="">Select Teacher</option>
                                        @foreach($teachers as $teacher)
                                            <option value="{{ $teacher->id }}" {{ old('teacher_id', $assignment->teacher_id) == $teacher->id ? 'selected' : '' }}>
                                                {{ $teacher->user->name ?? 'N/A' }}
                                            </option>
                                        @endforeach
                                    </select>
                                    @error('teacher_id')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                        </div>

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

                        <div class="mb-3">
                            <label for="instructions" class="form-label">Instructions *</label>
                            <textarea class="form-control @error('instructions') is-invalid @enderror" 
                                      id="instructions" name="instructions" rows="4" required>{{ old('instructions', $assignment->instructions) }}</textarea>
                            @error('instructions')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>

                        <div class="row">
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="due_at" class="form-label">Due Date & Time *</label>
                                    <input type="datetime-local" class="form-control @error('due_at') is-invalid @enderror" 
                                           id="due_at" name="due_at" 
                                           value="{{ old('due_at', $assignment->due_at->format('Y-m-d\TH:i')) }}" required>
                                    @error('due_at')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="max_score" class="form-label">Maximum Score *</label>
                                    <input type="number" class="form-control @error('max_score') is-invalid @enderror" 
                                           id="max_score" name="max_score" 
                                           value="{{ old('max_score', $assignment->max_score) }}" min="1" max="1000" required>
                                    @error('max_score')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                        </div>

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

                        <div class="d-flex justify-content-between">
                            <a href="{{ route('assignments.index') }}" class="btn btn-secondary">
                                <i class="fas fa-arrow-left"></i> Cancel
                            </a>
                            <button type="submit" class="btn btn-primary">
                                <i class="fas fa-save"></i> Update Assignment
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection