Restore permissions to creator and display them as owners in the list (#4369)

* restore permissions to creator and display them as owners in the list

* improved the code to use actually 5 roles in the app to distinguish a real creator from an owner

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

@@ -19,7 +19,19 @@ struct RoomMemberDetails: Identifiable, Hashable {
     var isBanned: Bool
     var isActive: Bool
         
-    enum Role { case administrator, moderator, user }
+    enum Role {
+        /// Creator of the room, PL infinite
+        case creator
+        /// Same power of an admin, but they can also upgrade the room, PL 150 onwards
+        case owner
+        /// Able to edit room settings and perform any action aside from room upgrading PL 100...149
+        case administrator
+        /// Able to perform room moderation actions PL 50...99
+        case moderator
+        /// Default role PL 0...49
+        case user
+    }
+
     let role: Role
     let powerLevel: RoomPowerLevel
     
@@ -39,18 +51,47 @@ extension RoomMemberDetails {
         isInvited = proxy.membership == .invite
         isIgnored = proxy.isIgnored
         isBanned = proxy.membership == .ban
-        role = .init(proxy.role)
+        role = .init(proxy.role, powerLevel: proxy.powerLevel)
         powerLevel = proxy.powerLevel
     }
 }
 
 extension RoomMemberDetails.Role {
-    init(_ role: RoomMemberRole) {
-        self = switch role {
-        // TODO: Implement creator role
-        case .creator, .administrator: .administrator
-        case .moderator: .moderator
-        case .user: .user
+    init(_ role: RoomMemberRole, powerLevel: RoomPowerLevel) {
+        switch role {
+        case .creator:
+            self = .creator
+        case .administrator:
+            switch powerLevel {
+            case .value(let value):
+                self = value >= 150 ? .owner : .administrator
+            default:
+                fatalError("Impossible")
+            }
+        case .moderator:
+            self = .moderator
+        case .user:
+            self = .user
+        }
+    }
+        
+    var isAdminOrHigher: Bool {
+        switch self {
+        case .administrator, .creator, .owner:
+            return true
+        case .moderator, .user:
+            return false
+        }
+    }
+}
+
+extension RoomMemberRole {
+    var isAdminOrHigher: Bool {
+        switch self {
+        case .administrator, .creator:
+            return true
+        case .moderator, .user:
+            return false
         }
     }
 }