95 lines
2.7 KiB
TypeScript
95 lines
2.7 KiB
TypeScript
// this file is responsible for reading and writing persistent data; all storage shall be handled by this file.
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import { parse, stringify } from "../utility";
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export default class StorageModel {
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storageEntryTree: StorageEntry = {}; // basic
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store = (directoryNames: string[], key: string, value: string): void => {
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const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
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localStorage.setItem(unifiedPath, value);
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this.updateTree(...directoryNames, key);
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};
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restore = (directoryNames: string[], key: string): string | null => {
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const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
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return localStorage.getItem(unifiedPath);
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};
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remove = (directoryNames: string[], key: string): void => {
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const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
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localStorage.removeItem(unifiedPath);
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};
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list = (...directoryNames: string[]): string[] => {
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let currentParent = this.storageEntryTree;
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for (const directoryName of directoryNames) {
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currentParent = currentParent[directoryName];
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}
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return [...Object.keys(currentParent)];
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};
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// array
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storeArray = (directoryNames: string[], key: string, value: any[]): void => {
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const valueString = stringify(value);
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this.store(directoryNames, key, valueString);
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};
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restoreArray = (directoryNames: string[], key: string): any[] | null => {
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const valueString = this.restore(directoryNames, key);
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if (!valueString) return null;
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const parsed = parse(valueString);
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if (!Array.isArray(parsed)) return null;
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return parsed;
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};
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// init
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constructor() {
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for (const key of Object.keys(localStorage)) {
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const directoryNames = this.keyToDirectoryNames(key);
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this.updateTree(...directoryNames);
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}
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}
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// utility
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updateTree = (...pathParts: string[]) => {
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let currentParent = this.storageEntryTree;
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for (const pathPart of pathParts) {
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if (!currentParent[pathPart]) {
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currentParent[pathPart] = {};
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}
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currentParent = currentParent[pathPart];
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}
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};
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directoryNamesToKey = (...directoryNames: string[]): string => {
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return directoryNames.join("/");
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};
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keyToDirectoryNames = (key: string): string[] => {
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return key.split("/");
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};
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}
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// types
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export type StorageEntry = { [key: string]: StorageEntry };
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// keys
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export enum storageKeys {
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// connection
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socketAddress = "v2/connection/socket-address",
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// settings
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userName = "v2/settings/user-name",
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firstDayOfWeek = "v2/settings/first-day-of-week",
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// history
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previousAddresses = "v2/history/previous-addresses",
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previousObjectCategories = "v2/history/object-categories",
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previousObjectStatuses = "v2/history/object-statuses",
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previousObjectFilters = "v2/history/object-filters",
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}
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