add preview of room image downloading

ts/components/session/ActionsPanel.tsx

@@ -31,15 +31,7 @@ import {
   joinOpenGroupV2,
   parseOpenGroupV2,
 } from '../../opengroup/opengroupV2/JoinOpenGroupV2';
-import {
-  getAuthToken,
-  getMessages,
-  getModerators,
-  postMessage,
-  uploadFileOpenGroupV2,
-} from '../../opengroup/opengroupV2/OpenGroupAPIV2';
-import { OpenGroupMessageV2 } from '../../opengroup/opengroupV2/OpenGroupMessageV2';
-// tslint:disable-next-line: no-import-side-effect no-submodule-imports
+import { downloadPreviewOpenGroupV2 } from '../../opengroup/opengroupV2/OpenGroupAPIV2';
 
 export enum SectionType {
   Profile,
@@ -207,13 +199,10 @@ export const ActionsPanel = () => {
         //   serverUrl: parsedRoom.serverUrl,
         //   roomId: parsedRoom.roomId,
         // });
-        const fileID = await uploadFileOpenGroupV2(
-          new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8, 9]),
-          {
-            serverUrl: parsedRoom.serverUrl,
-            roomId: parsedRoom.roomId,
-          }
-        );
+        // const fileID = await downloadPreviewOpenGroupV2({
+        //   serverUrl: parsedRoom.serverUrl,
+        //   roomId: parsedRoom.roomId,
+        // });
       }, 6000);
     }
   }, []);

ts/opengroup/opengroupV2/OpenGroupAPIV2.ts

@@ -550,6 +550,32 @@ export const downloadFileOpenGroupV2 = async (
   return new Uint8Array(fromBase64ToArrayBuffer(base64Data));
 };
 
+export const downloadPreviewOpenGroupV2 = async (
+  roomInfos: OpenGroupRequestCommonType
+): Promise<Uint8Array | null> => {
+  const request: OpenGroupV2Request = {
+    method: 'GET',
+    room: roomInfos.roomId,
+    server: roomInfos.serverUrl,
+    isAuthRequired: false,
+    endpoint: `rooms/${roomInfos.roomId}/image`,
+  };
+
+  const result = await sendOpenGroupV2Request(request);
+  const statusCode = parseStatusCodeFromOnionRequest(result);
+  if (statusCode !== 200) {
+    return null;
+  }
+
+  // we should probably change the logic of sendOnionRequest to not have all those levels
+  const base64Data = (result as any)?.result?.result as string | undefined;
+
+  if (!base64Data) {
+    return null;
+  }
+  return new Uint8Array(fromBase64ToArrayBuffer(base64Data));
+};
+
 /**
  * Returns the id on which the file is saved, or null
  */