Add action statistics

src/State/StatisticsState.ts

@@ -0,0 +1,23 @@
+import { DataStorage } from '../DataStorage';
+import { ActionStatistics } from '../Statistics';
+
+const NAMESPACE = 'statistics.v1';
+
+const ACTION_STATISTICS_KEY = 'actions';
+
+export class StatisticsState {
+    private storage: DataStorage;
+    constructor() {
+        this.storage = new DataStorage(NAMESPACE);
+    }
+
+    getActionStatistics(): ActionStatistics {
+        return this.storage.getTyped<ActionStatistics>(ACTION_STATISTICS_KEY, {
+            factory: () => ({}),
+        });
+    }
+
+    setActionStatistics(statistics: ActionStatistics): void {
+        this.storage.set(ACTION_STATISTICS_KEY, statistics);
+    }
+}