implement fake directories for storageModel

src/Model/storageModel.ts

@@ -2,43 +2,93 @@
 
 import { parse, stringify } from "../utility";
 
-// keys
-export enum storageKeys {
-    // current
-    socketAddress = "v2-socket-address",
+export default class StorageModel {
+  storageEntryTree: StorageEntry = {}; // basic
+  store = (directoryNames: string[], key: string, value: string): void => {
+    const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+    localStorage.setItem(unifiedPath, value);
+    this.updateTree(...directoryNames, key);
+  };
 
-    // settings
-    userName = "v2-user-name",
-    firstDayOfWeek = "v2-first-day-of-week",
+  restore = (directoryNames: string[], key: string): string | null => {
+    const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+    return localStorage.getItem(unifiedPath);
+  };
 
-    // history
-    previousAddresses = "v2-previous-addresses",
-    previousObjectCategories = "v2-object-categories",
-    previousObjectStatuses = "v2-object-statuses",
-    previousObjectFilters = "v2-object-filters",
-}
+  remove = (directoryNames: string[], key: string): void => {
+    const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+    localStorage.removeItem(unifiedPath);
+  };
 
-// basic
-export function store(key: string, value: string): void {
-  localStorage.setItem(key, value);
-}
+  list = (...directoryNames: string[]): string[] => {
+    let currentParent = this.storageEntryTree;
+    for (const directoryName of directoryNames) {
+      currentParent = currentParent[directoryName];
+    }
 
-export function restore(key: string): string | null {
-  return localStorage.getItem(key);
-}
+    return [...Object.keys(currentParent)];
+  };
 
-// array
-export function storeArray(key: string, value: any[]): void {
+  // array
+  storeArray = (directoryNames: string[], key: string, value: any[]): void => {
     const valueString = stringify(value);
-    store(key, valueString);
-}
+    this.store(directoryNames, key, valueString);
+  };
 
-export function restoreArray(key: string): any[] | null {
-    const valueString = restore(key);
+  restoreArray = (directoryNames: string[], key: string): any[] | null => {
+    const valueString = this.restore(directoryNames, key);
     if (!valueString) return null;
-    
+
     const parsed = parse(valueString);
     if (!Array.isArray(parsed)) return null;
 
     return parsed;
-}
+  };
+
+  // init
+  constructor() {
+    for (const key of Object.keys(localStorage)) {
+      const directoryNames = this.keyToDirectoryNames(key);
+      this.updateTree(...directoryNames);
+    }
+  }
+
+  // utility
+  updateTree = (...pathParts: string[]) => {
+    let currentParent = this.storageEntryTree;
+    for (const pathPart of pathParts) {
+      if (!currentParent[pathPart]) {
+        currentParent[pathPart] = {};
+      }
+
+      currentParent = currentParent[pathPart];
+    }
+  };
+
+  directoryNamesToKey = (...directoryNames: string[]): string => {
+    return directoryNames.join("/");
+  };
+
+  keyToDirectoryNames = (key: string): string[] => {
+    return key.split("/");
+  };
+}
+
+// types
+export type StorageEntry = { [key: string]: StorageEntry };
+
+// keys
+export enum storageKeys {
+  // current
+  socketAddress = "v2-socket-address",
+
+  // settings
+  userName = "v2-user-name",
+  firstDayOfWeek = "v2-first-day-of-week",
+
+  // history
+  previousAddresses = "v2-previous-addresses",
+  previousObjectCategories = "v2-object-categories",
+  previousObjectStatuses = "v2-object-statuses",
+  previousObjectFilters = "v2-object-filters",
+}