@php
use App\Helpers\SchemaCollector;

// Only process testimonials that have a valid linked course
$validTestimonials = collect($testimonials)->filter(fn($t) => !empty(optional($t->course)->id) && !empty(optional($t->course)->title));

// Group by course to compute aggregateRating per course
$byCourse = $validTestimonials->groupBy(fn($t) => $t->course->id);

$reviewItems = [];
foreach($validTestimonials as $testimonial) {
    $courseGroup = $byCourse->get($testimonial->course->id, collect([$testimonial]));
    $totalCount  = $courseGroup->count();
    $avgRating   = round($courseGroup->avg(fn($t) => (int)$t->star), 1);

    $reviewItems[] = [
        '@type'         => 'Review',
        'datePublished' => optional($testimonial->created_at)->format('Y-m-d') ?? now()->format('Y-m-d'),
        'author'        => [
            '@type' => 'Person',
            'name'  => $testimonial->author,
        ],
        'reviewRating'  => [
            '@type'       => 'Rating',
            'ratingValue' => (int)$testimonial->star,
            'bestRating'  => 5,
            'worstRating' => 1,
        ],
        'reviewBody'    => $testimonial->body,
        // itemReviewed used internally for grouping in _schema.blade.php
        'itemReviewed'  => [
            '@type'           => 'Course',
            'name'            => $testimonial->course->title,
            'url'             => courseDetailsUrl($testimonial->course->id, $testimonial->course->type, $testimonial->course->slug),
            'description'     => !empty($testimonial->course->about)
                ? strip_tags($testimonial->course->about)
                : $testimonial->course->title,
            'provider'        => [
                '@type' => 'Organization',
                'name'  => Settings('site_title') ?? 'Website',
                'url'   => url('/'),
            ],
            'aggregateRating' => [
                '@type'       => 'AggregateRating',
                'ratingValue' => $avgRating,
                'reviewCount' => $totalCount,
                'bestRating'  => 5,
                'worstRating' => 1,
            ],
        ],
    ];
}

if (!empty($reviewItems)) {
    SchemaCollector::addReviews($reviewItems);
}
@endphp