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<?php
namespace Corals\Modules\Utility\Classes\Rating;
use Corals\Foundation\Search\Indexable;
use Corals\Modules\Utility\Models\Rating\AvgRating;
use Corals\Modules\Utility\Models\Rating\Rating as RatingModel;
use Corals\Modules\Utility\Traits\Rating\ReviewRateable;
use Illuminate\Database\Eloquent\Model;
class RatingManager
{
protected $instance, $author;
/**
* RatingManager constructor.
* @param $instance
* @param $author
*/
public function __construct($instance = null, $author = null)
{
$this->instance = $instance;
$this->author = $author;
}
/**
* @param $data
* @return RatingModel|Model
*/
public function createRating($data)
{
$data = array_merge([
'reviewrateable_id' => $this->instance->id,
'reviewrateable_type' => getMorphAlias($this->instance),
'author_id' => $this->author->id,
'author_type' => getMorphAlias($this->author),
], $data);
$ratingModel = RatingModel::create($data);
event('notifications.rate.rate_created', [
'rating' => $ratingModel,
]);
return $ratingModel;
}
/**
* @param RatingModel $rating
* @param $data
* @return bool
*/
public function updateRating(RatingModel $rating, $data)
{
$rating->update($data);
}
/**
* @param $rating
* @param $isNewReview
* @param null $oldRateValue
* @param false $toggleStatus
* @return bool|\Illuminate\Database\Eloquent\Builder|Model|int|mixed|null
* @throws \Exception
*/
protected function storeUpdateAvgRating($rating, $isNewReview, $oldRateValue = null, $toggleStatus = false)
{
if ($rating->criteria) {
return $this->storeUpdateAvgRatingCriteria($rating, $isNewReview, $oldRateValue, $toggleStatus);
}
$rateable = $rating->ratable;
if ($parent_obj = $rateable->AggregatedRatingParentModel()) {
$parent_rating = clone $rating;
$parent_rating->reviewrateable_id = $parent_obj->id;
$parent_rating->reviewrateable_type = getMorphAlias(get_class($parent_obj));
$this->storeUpdateGeneralAvgRating($parent_rating, $isNewReview, $oldRateValue, $toggleStatus);
}
return $this->storeUpdateGeneralAvgRating($rating, $isNewReview, $oldRateValue, $toggleStatus);
}
/**
* @param $rating
* @param $isNewReview
* @param $oldRateValue
* @param $toggleStatus
* @return bool|\Illuminate\Database\Eloquent\Builder|Model|int|mixed|null
* @throws \Exception
*/
protected function storeUpdateAvgRatingCriteria($rating, $isNewReview, $oldRateValue, $toggleStatus)
{
$avgRating = AvgRating::query()
->firstOrCreate([
'avgreviewable_type' => $rating->reviewrateable_type,
'avgreviewable_id' => $rating->reviewrateable_id
], [
'avg' => $rating->rating,
'count' => 1,
'criterias' => [
$rating->criteria => [
'avg' => $rating->rating,
'count' => 1
]
]
]);
if ($avgRating->wasRecentlyCreated) {
return $avgRating;
}
$criterias = $avgRating->criterias;
$criteria = $criterias[$rating->criteria] ?? ['avg' => $rating->rating, 'count' => 0];
if ($isNewReview || ($rating->status == 'approved' && $toggleStatus)) {
if ($criteria['count'] == 0) {
$criteria['count'] = 1;
$newReviewsCount = 1;
$avg = $criteria['avg'];
} else {
$newReviewsCount = $criteria['count'] + 1;
$avg = (($criteria['avg'] * $criteria['count']) + $rating->rating) / $newReviewsCount;
}
} else {
if ($rating->status == 'approved') {
$avg = (($criteria['avg'] * $criteria['count']) + ($rating->rating - $oldRateValue)) / $criteria['count'];
} else {
$newReviewsCount = $criteria['count'] - 1;
if ($newReviewsCount == 0) {
$avg = 0;
} else {
$avg = (($criteria['avg'] * $criteria['count']) - $rating->rating) / $newReviewsCount;
}
}
}
$criterias[$rating->criteria] = [
'avg' => $avg,
'count' => $newReviewsCount ?? $criteria['count']
];
$generalAvg = 0;
$generalCount = 0;
foreach ($criterias as $criteria) {
$generalAvg += $criteria['avg'];
$generalCount += $criteria['count'];
}
$generalAvg = $generalAvg / count($criterias);
return $generalAvg == 0 ? $avgRating->delete() : tap($avgRating)->update([
'count' => $generalCount,
'avg' => $generalAvg,
'criterias' => $criterias
]);
}
/**
* @param $rating
* @param $isNewReview
* @param $oldRateValue
* @param $toggleStatus
* @return bool|\Illuminate\Database\Eloquent\Builder|Model|int|mixed|null
* @throws \Exception
*/
protected function storeUpdateGeneralAvgRating($rating, $isNewReview, $oldRateValue, $toggleStatus)
{
$avgRating = AvgRating::query()
->firstOrCreate([
'avgreviewable_type' => $rating->reviewrateable_type,
'avgreviewable_id' => $rating->reviewrateable_id
], [
'avg' => $rating->rating,
'count' => 1,
]);
if ($avgRating->wasRecentlyCreated) {
return $avgRating;
}
if ($isNewReview || ($rating->status == 'approved' && $toggleStatus)) {
$newReviewsCount = $avgRating->count + 1;
$avg = (($avgRating->avg * $avgRating->count) + $rating->rating) / $newReviewsCount;
} else {
//in case of update review!
if ($rating->status == 'approved') {
$avg = (($avgRating->avg * $avgRating->count) + ($rating->rating - $oldRateValue)) / $avgRating->count;
} else {
$newReviewsCount = $avgRating->count - 1;
if ($newReviewsCount == 0) {
$avg = 0;
} else {
$avg = (($avgRating->avg * $avgRating->count) - $rating->rating) / $newReviewsCount;
}
}
}
return $avg == 0 ? $avgRating->delete() : tap($avgRating)->update([
'count' => $newReviewsCount ?? $avgRating->count,
'avg' => $avg
]);
}
public function handleModelRating($data)
{
$rating = $this->instance->ratings()->where([
'author_id' => $this->author->id,
'author_type' => getMorphAlias($this->author),
'criteria' => $data['criteria'] ?? null,
])->first();
if ($rating) {
$oldRating = $rating->rating;
$this->updateRating($rating, $data);
} else {
$setting_name = strtolower(class_basename($this->instance)) . '_default_rating_status';
$data['status'] = \Settings::get($setting_name, 'approved');
$newReview = true;
$rating = $this->createRating($data);
}
if ($rating->status == 'approved') {
$this->storeUpdateAvgRating($rating, $newReview ?? false, $oldRating ?? null);
}
return $rating;
}
/**
* @param RatingModel $rating
* @return bool|null
* @throws \Exception
*/
public function deleteRating($rating)
{
return $rating->delete();
}
public function getModelAvgRating($model)
{
return $rating->delete();
}
public function toggleStatus($rating, $status)
{
$update = $rating->update([
'status' => $status,
]);
event('notifications.rate.rate_toggle_status', [
'rating' => $rating,
]);
$this->storeUpdateAvgRating($rating, false, 0, true);
return $update;
}
public function drawStarts($count = 0)
{
$stars = '';
for ($i = 1; $i <= 5; $i++) {
$muted = $count >= $i ? "" : "-o";
$stars .= '<i class="fa fa-star' . $muted . '"></i>';
}
return $stars;
}
public function CalculateAvgByClass($class)
{
$model = new $class;
if (in_array(ReviewRateable::class, class_uses($model), true)) {
$model->chunk(100, function ($chunk) use ($model) {
foreach ($chunk as $modelRecord) {
$model_reviews = $modelRecord->ratings('approved');
$reviews_count = $model_reviews->count();
if ($reviews_count) {
$review_sum = $model_reviews->sum('rating');
$avg_rating = $review_sum / $reviews_count;
AvgRating::query()
->firstOrCreate([
'avgreviewable_type' => getMorphAlias($model),
'avgreviewable_id' => $modelRecord->id
], [
'avg' => $avg_rating,
'count' => $reviews_count,
]);
if ($parent_obj = $modelRecord->AggregatedRatingParentModel()) {
foreach ($modelRecord->ratings as $review){
$parent_rating = clone $review;
$parent_rating->reviewrateable_id = $parent_obj->id;
$parent_rating->reviewrateable_type = getMorphAlias(get_class($parent_obj));
$this->storeUpdateGeneralAvgRating($parent_rating, true, null, false);
}
}
}
}
});
}
}
}