Archive commit

src/ts/components/services/storageService.ts

@@ -0,0 +1,84 @@
+import { Injectable } from '@angular/core';
+
+/* istanbul ignore next */
+@Injectable({ providedIn: 'root' })
+export class StorageService {
+	private data?: Map<string, string> = undefined;
+	constructor() {
+		try {
+			if (typeof localStorage === 'undefined') {
+				this.data = new Map();
+			}
+		} catch {
+			this.data = new Map();
+		}
+	}
+	getItem(key: string) {
+		if (this.data) {
+			return this.data.get(key);
+		} else {
+			try {
+				const value = localStorage.getItem(key);
+				return value == null ? undefined : value;
+			} catch {
+				return undefined;
+			}
+		}
+	}
+	setItem(key: string, data: string) {
+		try {
+			localStorage.setItem(key, data);
+			this.data = undefined;
+		} catch {
+			if (!this.data) {
+				this.data = new Map();
+			}
+
+			this.data.set(key, data);
+		}
+	}
+	removeItem(key: string) {
+		if (this.data) {
+			this.data.delete(key);
+		} else {
+			try {
+				localStorage.removeItem(key);
+			} catch { }
+		}
+	}
+	clear() {
+		if (this.data) {
+			this.data.clear();
+		} else {
+			try {
+				localStorage.clear();
+			} catch { }
+		}
+	}
+	getJSON<T>(key: string, defaultValue: T): T {
+		try {
+			return JSON.parse(this.getItem(key) || '');
+		} catch {
+			return defaultValue;
+		}
+	}
+	setJSON(key: string, value: any) {
+		this.setItem(key, JSON.stringify(value));
+	}
+	getInt(key: string) {
+		return parseInt(this.getItem(key) || '0', 10) | 0;
+	}
+	setInt(key: string, value: number) {
+		this.setItem(key, value.toString(10));
+	}
+	getBoolean(key: string) {
+		return this.getItem(key) === 'true';
+	}
+	setBoolean(key: string, value: boolean) {
+		if (value) {
+			this.setItem(key, 'true');
+		} else {
+			this.removeItem(key);
+		}
+	}
+}