revert lint move contents to .d.ts file

.eslintrc.json

@@ -10,7 +10,6 @@
     "sourceType": "module"
   },
   "rules": {
-    "@typescript-eslint/camelcase": "off",
-    "@typescript-eslint/no-namespace": "off"
+    "@typescript-eslint/camelcase": "off"
   }
 }

types/api/reporting.d.ts

@@ -1 +1,36 @@
-export declare namespace Reporting {}
+export namespace Reporting {
+  interface OrderStatsResponse {
+    message: string;
+    status: number;
+    result: OrderResult;
+  }
+
+  interface OrderResult {
+    [region: string]: OrderStats;
+  }
+
+  interface OrderStats {
+    period: {
+      from: string;
+      to: string;
+    };
+    min: number;
+    count: number;
+    is_popular: boolean;
+  }
+
+  interface OfferStatsResponse {
+    message: string;
+    status: number;
+    result: OfferResult;
+  }
+
+  type OfferResult = Array<OfferStats>;
+
+  interface OfferStats {
+    total_purchase: string;
+    offer_id: string;
+    page_views: string | null;
+    region: string;
+  }
+}