WIP follow profile

app/src/main/java/com/isolaatti/followers/domain/FollowingState.kt

@@ -0,0 +1,8 @@
+package com.isolaatti.followers.domain
+
+enum class FollowingState {
+    FollowingThisUser,
+    MutuallyFollowing,
+    ThisUserIsFollowingMe,
+    NotMutuallyFollowing
+}

app/src/main/java/com/isolaatti/profile/presentation/ProfileViewModel.kt

@@ -4,6 +4,7 @@ import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import com.isolaatti.followers.domain.FollowingState
 import com.isolaatti.posting.posts.data.remote.FeedDto
 import com.isolaatti.posting.posts.data.remote.FeedFilterDto
 import com.isolaatti.posting.posts.presentation.PostListingViewModelBase
@@ -32,11 +33,23 @@ class ProfileViewModel @Inject constructor(private val getProfileUseCase: GetPro
 
     var profileId: Int  = 0
 
+    val followingState: MutableLiveData<FollowingState> = MutableLiveData()
+
     fun getProfile() {
         viewModelScope.launch {
             getProfileUseCase(profileId).onEach {
                 if(it is Resource.Success) {
                     _profile.postValue(it.data!!)
+                    followingState.postValue(
+                        it.data.let {user->
+                            when {
+                                user.followingThisUser && user.thisUserIsFollowingMe -> FollowingState.MutuallyFollowing
+                                user.followingThisUser -> FollowingState.FollowingThisUser
+                                user.thisUserIsFollowingMe -> FollowingState.ThisUserIsFollowingMe
+                                else -> FollowingState.NotMutuallyFollowing
+                            }
+                        }
+                    )
                 }
             }.flowOn(Dispatchers.IO).launchIn(this)
         }

app/src/main/java/com/isolaatti/profile/ui/ProfileMainFragment.kt

@@ -14,6 +14,7 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import com.isolaatti.BuildConfig
 import com.isolaatti.R
 import com.isolaatti.databinding.FragmentDiscussionsBinding
+import com.isolaatti.followers.domain.FollowingState
 import com.isolaatti.home.FeedFragment
 import com.isolaatti.posting.PostViewerActivity
 import com.isolaatti.posting.comments.presentation.BottomSheetPostComments
@@ -68,6 +69,27 @@ class ProfileMainFragment : Fragment() {
 
     }
 
+    private val followingStateObserver: Observer<FollowingState> = Observer {
+        when(it) {
+            FollowingState.FollowingThisUser -> {
+                viewBinding.textViewFollowingState.setText(R.string.following_user)
+                viewBinding.followButton.setText(R.string.unfollow)
+            }
+            FollowingState.MutuallyFollowing -> {
+                viewBinding.textViewFollowingState.setText(R.string.mutually_following)
+                viewBinding.followButton.setText(R.string.unfollow)
+            }
+            FollowingState.ThisUserIsFollowingMe -> {
+                viewBinding.textViewFollowingState.setText(R.string.following_you)
+                viewBinding.followButton.setText(R.string.follow)
+            }
+            FollowingState.NotMutuallyFollowing -> {
+                viewBinding.textViewFollowingState.text = ""
+                viewBinding.followButton.setText(R.string.follow)
+            }
+        }
+    }
+
     private lateinit var postListingRecyclerViewAdapterWiring: PostListingRecyclerViewAdapterWiring
 
 
@@ -117,6 +139,7 @@ class ProfileMainFragment : Fragment() {
     private fun setObservers() {
         viewModel.profile.observe(viewLifecycleOwner, profileObserver)
         viewModel.posts.observe(viewLifecycleOwner, postsObserver)
+        viewModel.followingState.observe(viewLifecycleOwner, followingStateObserver)
         viewModel.loadingPosts.observe(viewLifecycleOwner) {
             viewBinding.swipeToRefresh.isRefreshing = it
         }

app/src/main/res/layout/fragment_discussions.xml

@@ -70,12 +70,13 @@
                     tools:text="Following this profile" />
 
                 <com.google.android.material.button.MaterialButton
+                    android:id="@+id/follow_button"
                     style="?attr/materialIconButtonFilledTonalStyle"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
                     android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
 
+                    android:layout_marginEnd="16dp"
                     app:layout_constraintEnd_toEndOf="parent"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toBottomOf="@id/text_view_following_state" />

app/src/main/res/values/strings.xml

@@ -57,4 +57,6 @@
     <string name="mutually_following">Mutually following</string>
     <string name="following_you">Following you</string>
     <string name="user_link">User link</string>
+    <string name="follow">Follow</string>
+    <string name="unfollow">Unfollow</string>
 </resources>