Tapping on user avatar/name in the timeline opens the room member details (#1020)

* Implementation completed

* changelog

* code improvement

* Apply suggestions from code review

Co-authored-by: Stefan Ceriu <stefanc@matrix.org>

* pr suggestions

---------

Co-authored-by: Stefan Ceriu <stefanc@matrix.org>

ElementX/Sources/Services/Room/RoomMember/RoomMemberProxyProtocol.swift

@@ -23,7 +23,7 @@ enum RoomMemberProxyError: Error {
 }
 
 // sourcery: AutoMockable
-protocol RoomMemberProxyProtocol {
+protocol RoomMemberProxyProtocol: AnyObject {
     var userID: String { get }
     var displayName: String? { get }
     var avatarURL: URL? { get }

ElementX/Sources/Services/Room/RoomProxy.swift

@@ -389,6 +389,22 @@ class RoomProxy: RoomProxyProtocol {
             return
         }
     }
+
+    func getMember(userID: String) async -> Result<RoomMemberProxyProtocol, RoomProxyError> {
+        sendMessageBackgroundTask = backgroundTaskService.startBackgroundTask(withName: backgroundTaskName, isReusable: true)
+        defer {
+            sendMessageBackgroundTask?.stop()
+        }
+
+        return await Task.dispatch(on: userInitiatedDispatchQueue) {
+            do {
+                let member = try self.room.member(userId: userID)
+                return .success(RoomMemberProxy(member: member, backgroundTaskService: self.backgroundTaskService))
+            } catch {
+                return .failure(.failedRetrievingMember)
+            }
+        }
+    }
     
     func ignoreUser(_ userID: String) async -> Result<Void, RoomProxyError> {
         sendMessageBackgroundTask = backgroundTaskService.startBackgroundTask(withName: backgroundTaskName, isReusable: true)

ElementX/Sources/Services/Room/RoomProxyProtocol.swift

@@ -33,6 +33,7 @@ enum RoomProxyError: Error {
     case failedReportingContent
     case failedAddingTimelineListener
     case failedRetrievingMembers
+    case failedRetrievingMember
     case failedLeavingRoom
     case failedAcceptingInvite
     case failedRejectingInvite
@@ -113,7 +114,9 @@ protocol RoomProxyProtocol {
     func leaveRoom() async -> Result<Void, RoomProxyError>
     
     func updateMembers() async
-    
+
+    func getMember(userID: String) async -> Result<RoomMemberProxyProtocol, RoomProxyError>
+
     func inviter() async -> RoomMemberProxyProtocol?
     
     func rejectInvitation() async -> Result<Void, RoomProxyError>