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BETTERZON-107: Refactoring code with Proxy as design pattern (#49)

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Patrick 2021-05-20 10:23:41 +02:00 committed by GitHub
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commit e7543e6430
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2 changed files with 23 additions and 6 deletions
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23
Backend/src/models/prices/price.interface.ts
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@ -4,7 +4,24 @@ export interface Price {
vendor_id: number;
price_in_cents: number;
timestamp: Date;
// Only for deals
amazonDifference?: number;
amazonDifferencePercent?: number;
}
export class Deal implements Price {
price_id: number;
product_id: number;
vendor_id: number;
price_in_cents: number;
timestamp: Date;
amazonDifference: number;
amazonDifferencePercent: number;
constructor(price_id: number, product_id: number, vendor_id: number, price_in_cents: number, timestamp: Date, amazonDifference: number, amazonDifferencePercent: number) {
this.price_id = price_id;
this.product_id = product_id;
this.vendor_id = vendor_id;
this.price_in_cents = price_in_cents;
this.timestamp = timestamp;
this.amazonDifference = amazonDifference;
this.amazonDifferencePercent = amazonDifferencePercent;
}
}

6
Backend/src/models/prices/prices.service.ts
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@ -15,7 +15,7 @@ const pool = mariadb.createPool({
* Data Model Interfaces
*/
import {Price} from './price.interface';
import {Deal, Price} from './price.interface';
import {Prices} from './prices.interface';
@ -255,7 +255,7 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
}
// Iterate over all prices to find the products with the biggest difference between amazon and other vendor
let deals: Price[] = [];
let deals: Deal[] = [];
Object.keys(allPrices).forEach(productId => {
if (allPrices[parseInt(productId)]) {
@ -287,7 +287,7 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
// Push only deals were the amazon price is actually higher
if (deal.amazonDifferencePercent > 0) {
deals.push(deal as Price);
deals.push(deal as Deal);
}
}
});