forked from vergnet/application-amicale
125 lines
3.4 KiB
JavaScript
125 lines
3.4 KiB
JavaScript
// @flow
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import {AsyncStorage} from "react-native";
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/**
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* Static class used to manage preferences.
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* Preferences are fetched at the start of the app and saved in an instance object.
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* This allows for a synchronous access to saved data.
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*/
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export default class AsyncStorageManager {
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static instance: AsyncStorageManager | null = null;
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/**
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* Get this class instance or create one if none is found
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* @returns {ThemeManager}
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*/
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static getInstance(): AsyncStorageManager {
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return AsyncStorageManager.instance === null ?
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AsyncStorageManager.instance = new AsyncStorageManager() :
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AsyncStorageManager.instance;
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}
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// Object storing preferences keys, default and current values for use in the app
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preferences = {
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showIntro: {
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key: 'showIntro',
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default: '1',
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current: '',
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},
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showUpdate5: {
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key: 'showUpdate5',
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default: '1',
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current: '',
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},
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proxiwashNotifications: {
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key: 'proxiwashNotifications',
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default: '5',
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current: '',
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},
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proxiwashWatchedMachines: {
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key: 'proxiwashWatchedMachines',
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default: '[]',
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current: '',
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},
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nightModeFollowSystem: {
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key: 'nightModeFollowSystem',
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default: '1',
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current: '',
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},
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nightMode: {
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key: 'nightMode',
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default: '0',
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current: '',
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},
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expoToken: {
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key: 'expoToken',
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default: '',
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current: '',
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},
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debugUnlocked: {
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key: 'debugUnlocked',
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default: '0',
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current: '',
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},
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defaultStartScreen: {
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key: 'defaultStartScreen',
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default: 'Home',
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current: '',
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},
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proxiwashShowBanner: {
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key: 'proxiwashShowBanner',
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default: '1',
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current: '',
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},
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planexShowBanner: {
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key: 'planexShowBanner',
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default: '1',
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current: '',
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},
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showAprilFoolsStart: {
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key: 'showAprilFoolsStart',
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default: '1',
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current: '',
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},
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};
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/**
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* Set preferences object current values from AsyncStorage.
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* This function should be called at the app's start.
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*
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* @return {Promise<void>}
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*/
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async loadPreferences() {
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let prefKeys = [];
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// Get all available keys
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for (let [key, value] of Object.entries(this.preferences)) {
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prefKeys.push(value.key);
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}
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// Get corresponding values
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let resultArray: Array<Array<string>> = await AsyncStorage.multiGet(prefKeys);
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// Save those values for later use
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for (let i = 0; i < resultArray.length; i++) {
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let key: string = resultArray[i][0];
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let val: string | null = resultArray[i][1];
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if (val === null)
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val = this.preferences[key].default;
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this.preferences[key].current = val;
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}
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}
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/**
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* Save the value associated to the given key to preferences.
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* This updates the preferences object and saves it to AsynStorage.
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*
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* @param key
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* @param val
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*/
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savePref(key: string, val: string) {
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this.preferences[key].current = val;
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AsyncStorage.setItem(key, val);
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}
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}
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