Repeat last operation

src/background/repositories/RepeatRepository.ts

@@ -0,0 +1,22 @@
+import { injectable } from 'tsyringe';
+import { Operation } from '../../shared/operations';
+import MemoryStorage from '../infrastructures/MemoryStorage';
+
+const REPEAT_KEY = 'repeat';
+
+@injectable()
+export default class RepeatRepository {
+  private cache: MemoryStorage;
+
+  constructor() {
+    this.cache = new MemoryStorage();
+  }
+
+  getLastOperation(): Operation | undefined {
+    return this.cache.get(REPEAT_KEY);
+  }
+
+  setLastOperation(op: Operation): void {
+    this.cache.set(REPEAT_KEY, op);
+  }
+}