refactor: deleting expired records

src/uploadx/lib/store.ts

@@ -1,7 +1,7 @@
 const HOUR = 1000 * 60 * 60;
 
 export class Store<T = string> {
-  private ttl = 24 * HOUR;
+  public ttl = 24 * HOUR;
   constructor(readonly prefix = 'UPLOADX-v4.0-') {}
 
   set(key: string, value: T): void {
@@ -12,8 +12,13 @@ export class Store<T = string> {
   get(key: string): T | null {
     const item = localStorage.getItem(this.prefix + key);
     if (item) {
-      const [value, expires] = JSON.parse(item);
-      return value && expires ? value : null;
+      try {
+        const [value, expires] = JSON.parse(item) as [T, number];
+        if (Date.now() < expires) {
+          return value;
+        }
+      } catch {}
+      this.delete(key);
     }
     return null;
   }
@@ -25,18 +30,20 @@ export class Store<T = string> {
   clear(maxAgeHours = 0): void {
     this.ttl = maxAgeHours * HOUR;
     const now = Date.now();
-    this.keys().forEach(key => {
+    this._keys().forEach(key => {
       const item = localStorage.getItem(key);
       if (item && maxAgeHours) {
-        const [, expires] = JSON.parse(item);
-        now > Number(expires) && localStorage.removeItem(key);
-      } else {
-        localStorage.removeItem(key);
+        try {
+          const [, expires] = JSON.parse(item) as [T, number];
+          now > expires && localStorage.removeItem(key);
+          return;
+        } catch {}
       }
+      localStorage.removeItem(key);
     });
   }
 
-  private keys(): string[] {
+  private _keys(): string[] {
     return Object.keys(localStorage).filter(key => key.indexOf(this.prefix) === 0);
   }
 }