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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | 1x 1x 1x 1x 1x 1x 1x 3x 3x 3x 3x 15x 3x 3x | import { ChangeDetectionStrategy, Component, Input, OnInit } from '@angular/core';
import { range } from 'lodash-es';
import { Observable } from 'rxjs';
import { filter, map } from 'rxjs/operators';
import { ProductContextFacade } from 'ish-core/facades/product-context.facade';
import { ProductHelper } from 'ish-core/models/product/product.helper';
import { GenerateLazyComponent } from 'ish-core/utils/module-loader/generate-lazy-component.decorator';
/**
* The Product Rating Component renders rating stars for a product (besides variation masters) with rounded average rating as number. *
*/
@Component({
selector: 'ish-product-rating',
templateUrl: './product-rating.component.html',
changeDetection: ChangeDetectionStrategy.OnPush,
})
@GenerateLazyComponent()
export class ProductRatingComponent implements OnInit {
@Input() hideNumberOfReviews = false;
stars$: Observable<('full' | 'half' | 'empty')[]>;
rating$: Observable<number>;
numberOfReviews$: Observable<number>;
isVariationMaster$: Observable<boolean>;
constructor(private context: ProductContextFacade) {}
ngOnInit() {
this.rating$ = this.context.select('product', 'roundedAverageRating').pipe(filter(x => typeof x === 'number'));
this.stars$ = this.rating$.pipe(
map(rate => range(1, 6).map(index => (index <= rate ? 'full' : index - 0.5 === rate ? 'half' : 'empty')))
);
this.numberOfReviews$ = this.context.select('product', 'numberOfReviews');
this.isVariationMaster$ = this.context.select('product').pipe(map(ProductHelper.isMasterProduct));
}
}
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