80 lines
2.4 KiB
PHP
80 lines
2.4 KiB
PHP
<?php
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namespace Modules\Exam\Services;
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use Modules\Exam\Models\ExamReview;
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use Illuminate\Pagination\LengthAwarePaginator;
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use Illuminate\Database\Eloquent\Collection;
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class ExamReviewService
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{
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public function createReview(array $data): ExamReview
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{
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return ExamReview::create($data);
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}
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public function updateReview(string $id, array $data): ExamReview
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{
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return ExamReview::findOrFail($id)->update($data);
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}
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public function deleteReview(string $id): bool
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{
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return ExamReview::findOrFail($id)->delete();
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}
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function getExamReviews(string $exam_id, array $data, bool $paginate = false): LengthAwarePaginator|Collection
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{
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$page = array_key_exists('reviews_per_page', $data) ? intval($data['reviews_per_page']) : 10;
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$reviews = ExamReview::with(['user'])
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->where('exam_id', $exam_id)
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->when(array_key_exists('search', $data), function ($query) use ($data) {
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return $query->where('review', 'LIKE', '%' . $data['search'] . '%');
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})
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->orderBy('created_at', 'desc');
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if ($paginate) {
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return $reviews->paginate($page);
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}
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return $reviews->get();
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}
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function getExamRatingStatistics(string $exam_id): array
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{
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$reviews = ExamReview::where('exam_id', $exam_id)
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->select('rating')
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->get();
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$totalReviews = $reviews->count();
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$ratingCounts = [
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5 => 0,
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4 => 0,
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3 => 0,
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2 => 0,
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1 => 0,
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];
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// Count reviews for each rating
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foreach ($reviews as $review) {
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$rating = max(1, min(5, $review->rating)); // Ensure rating is between 1-5
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$ratingCounts[$rating]++;
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}
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// Calculate percentages
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$ratingDistribution = [
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['stars' => 5, 'percentage' => $totalReviews ? ($ratingCounts[5] / $totalReviews) * 100 : 0],
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['stars' => 4, 'percentage' => $totalReviews ? ($ratingCounts[4] / $totalReviews) * 100 : 0],
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['stars' => 3, 'percentage' => $totalReviews ? ($ratingCounts[3] / $totalReviews) * 100 : 0],
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['stars' => 2, 'percentage' => $totalReviews ? ($ratingCounts[2] / $totalReviews) * 100 : 0],
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['stars' => 1, 'percentage' => $totalReviews ? ($ratingCounts[1] / $totalReviews) * 100 : 0],
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];
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return [
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'total_reviews' => $totalReviews,
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'rating_distribution' => $ratingDistribution,
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];
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}
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}
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