[iOS] Create public space #143

- Update after design review

RiotSwiftUI/Modules/Spaces/SpaceCreation/SpaceCreationEmailInvites/ViewModel/SpaceCreationEmailInvitesViewModel.swift

@@ -42,15 +42,23 @@ class SpaceCreationEmailInvitesViewModel: SpaceCreationEmailInvitesViewModelType
     init(creationParameters: SpaceCreationParameters, service: SpaceCreationEmailInvitesServiceProtocol) {
         self.creationParameters = creationParameters
         self.service = service
-        let emailValidation = service.validate(creationParameters.emailInvites)
-        super.init(initialViewState: SpaceCreationEmailInvitesViewModel.defaultState(creationParameters: creationParameters, emailValidation: emailValidation))
+        super.init(initialViewState: SpaceCreationEmailInvitesViewModel.defaultState(creationParameters: creationParameters, service: service))
     }
 
-    private static func defaultState(creationParameters: SpaceCreationParameters, emailValidation: [Bool]) -> SpaceCreationEmailInvitesViewState {
+    private func setupServiceObserving() {
+        let publisher = service.isLoadingSubject
+            .map(SpaceCreationEmailInvitesStateAction.updateLoading)
+            .eraseToAnyPublisher()
+        dispatch(actionPublisher: publisher)
+    }
+
+    private static func defaultState(creationParameters: SpaceCreationParameters, service: SpaceCreationEmailInvitesServiceProtocol) -> SpaceCreationEmailInvitesViewState {
+        let emailValidation = service.validate(creationParameters.emailInvites)
         let bindings = SpaceCreationEmailInvitesViewModelBindings(emailInvites: creationParameters.emailInvites)
         return SpaceCreationEmailInvitesViewState(
             title: creationParameters.isPublic ? VectorL10n.spacesCreationPublicSpaceTitle : VectorL10n.spacesCreationPrivateSpaceTitle,
             emailAddressesValid: emailValidation,
+            loading: service.isLoadingSubject.value,
             bindings: bindings
         )
     }
@@ -61,6 +69,8 @@ class SpaceCreationEmailInvitesViewModel: SpaceCreationEmailInvitesViewModelType
         switch viewAction {
         case .cancel:
             cancel()
+        case .back:
+            back()
         case .done:
             done()
         case .inviteByUsername:
@@ -72,6 +82,8 @@ class SpaceCreationEmailInvitesViewModel: SpaceCreationEmailInvitesViewModelType
         switch action {
         case .updateEmailValidity(let emailValidity):
             state.emailAddressesValid = emailValidity
+        case .updateLoading(let isLoading):
+            state.loading = isLoading
         }
     }
 
@@ -80,8 +92,18 @@ class SpaceCreationEmailInvitesViewModel: SpaceCreationEmailInvitesViewModelType
         let emailAddressesValidity = service.validate(self.context.emailInvites)
         
         dispatch(action: .updateEmailValidity(emailAddressesValidity))
-        if emailAddressesValidity.reduce(true, { $0 && $1}) {
+        if self.context.emailInvites.reduce(true, { $0 && $1.isEmpty }) {
             completion?(.done)
+        } else if emailAddressesValidity.reduce(true, { $0 && $1}) {
+            if service.isIdentityServiceReady {
+                completion?(.done)
+            } else {
+                service.prepareIdentityService { [weak self] baseURL, accessToken in
+                    self?.completion?(.needIdentityServiceTerms(baseURL, accessToken))
+                } failure: { [weak self] error in
+                    self?.completion?(.identityServiceFailure(error))
+                }
+            }
         }
     }
 
@@ -89,6 +111,10 @@ class SpaceCreationEmailInvitesViewModel: SpaceCreationEmailInvitesViewModelType
         completion?(.cancel)
     }
     
+    private func back() {
+        completion?(.back)
+    }
+    
     private func inviteByUsername() {
         completion?(.inviteByUsername)
     }