56 lines
1.5 KiB
TypeScript
56 lines
1.5 KiB
TypeScript
import { FeatureRequest } from "../../types";
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import getStorage from "./storage";
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interface VotingData {
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[login: string]: FeatureRequest[],
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}
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const storage = getStorage();
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const STORAGE_KEY = 'voting';
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/**
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* Vrátí pole voleb, pro které uživatel aktuálně hlasuje.
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*
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* @param login login uživatele
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* @returns pole voleb
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*/
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export async function getUserVotes(login: string) {
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const data: VotingData = await storage.getData(STORAGE_KEY);
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return data?.[login] || [];
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}
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/**
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* Aktualizuje hlas uživatele pro konkrétní volbu.
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*
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* @param login login uživatele
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* @param option volba
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* @param active příznak, zda volbu přidat nebo odebrat
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* @returns aktuální data
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*/
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export async function updateFeatureVote(login: string, option: FeatureRequest, active: boolean): Promise<VotingData> {
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let data: VotingData = await storage.getData(STORAGE_KEY);
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if (data == null) {
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data = {};
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}
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if (!(login in data)) {
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data[login] = [];
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}
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const index = data[login].indexOf(option);
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if (index > -1) {
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if (active) {
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throw Error('Pro tuto možnost jste již hlasovali');
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} else {
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data[login].splice(index, 1);
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if (data[login].length === 0) {
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delete data[login];
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}
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}
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} else if (active) {
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if (data[login].length == 3) {
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throw Error('Je možné hlasovat pro maximálně 3 možnosti');
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}
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data[login].push(option);
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}
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await storage.setData(STORAGE_KEY, data);
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return data;
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} |