theme user groups and mentions

Signed-off-by: sowjanyakch <sowjanya.kch@gmail.com>

app/src/main/java/com/nextcloud/talk/api/NcApiCoroutines.kt

@@ -20,6 +20,8 @@ import com.nextcloud.talk.models.json.participants.TalkBanOverall
 import com.nextcloud.talk.models.json.profile.ProfileOverall
 import com.nextcloud.talk.models.json.testNotification.TestNotificationOverall
 import com.nextcloud.talk.models.json.userAbsence.UserAbsenceOverall
+import com.nextcloud.talk.models.json.usercircles.UserCirclesOverall
+import com.nextcloud.talk.models.json.usergroups.UserGroupsOverall
 import okhttp3.MultipartBody
 import okhttp3.RequestBody
 import retrofit2.http.Body

app/src/main/java/com/nextcloud/talk/chat/ChatActivity.kt

@@ -196,6 +196,7 @@ import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_RECORDING_STATE
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_ROOM_TOKEN
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_START_CALL_AFTER_ROOM_SWITCH
 import com.nextcloud.talk.utils.bundle.BundleKeys.KEY_SWITCH_TO_ROOM
+import com.nextcloud.talk.utils.message.MessageUtils
 import com.nextcloud.talk.utils.permissions.PlatformPermissionUtil
 import com.nextcloud.talk.utils.rx.DisposableSet
 import com.nextcloud.talk.utils.singletons.ApplicationWideCurrentRoomHolder
@@ -271,6 +272,9 @@ class ChatActivity :
     @Inject
     lateinit var networkMonitor: NetworkMonitor
 
+    @Inject
+    lateinit var messageUtils: MessageUtils
+
     lateinit var chatViewModel: ChatViewModel
 
     lateinit var conversationInfoViewModel: ConversationInfoViewModel
@@ -669,6 +673,10 @@ class ChatActivity :
                             }
                         }
 
+                        conversationUser?.let { user ->
+                            chatViewModel.fetchUserData(user)
+                        }
+
                         if (currentConversation?.objectType == ConversationEnums.ObjectType.EVENT &&
                             hasSpreedFeatureCapability(
                                 conversationUser?.capabilities!!.spreedCapability!!,
@@ -1204,6 +1212,14 @@ class ChatActivity :
                 }
             }
         }
+
+        lifecycleScope.launch {
+            chatViewModel.userGroups.collect { userGroups ->
+                chatViewModel.userCircles.collect { userCircles ->
+                    messageUtils.setUserData(userGroups, userCircles)
+                }
+            }
+        }
     }
 
     private fun removeUnreadMessagesMarker() {

app/src/main/java/com/nextcloud/talk/chat/data/network/ChatNetworkDataSource.kt

@@ -77,4 +77,6 @@ interface ChatNetworkDataSource {
     ): List<ChatMessageJson>
     suspend fun getOpenGraph(credentials: String, baseUrl: String, extractedLinkToPreview: String): Reference?
     suspend fun unbindRoom(credentials: String, baseUrl: String, roomToken: String): GenericOverall
+    suspend fun getUserGroups(user: User): Set<String>
+    suspend fun getUserCircles(user: User): Set<String>
 }

app/src/main/java/com/nextcloud/talk/chat/data/network/RetrofitChatNetwork.kt

@@ -222,4 +222,25 @@ class RetrofitChatNetwork(
         val url = ApiUtils.getUrlForUnbindingRoom(baseUrl, roomToken)
         return ncApiCoroutines.unbindRoom(credentials, url)
     }
+
+    override suspend fun getUserGroups(user: User): Set<String> {
+        val credentials: String = ApiUtils.getCredentials(user.username, user.token)!!
+        val response = ncApiCoroutines.getUserGroups(
+            credentials,
+            ApiUtils.getUrlForUserGroups(
+                user.baseUrl!!,
+                user.userId!!
+            )
+        )
+        return response.ocs?.data?.groups?.toSet() ?: emptySet()
+    }
+
+    override suspend fun getUserCircles(user: User): Set<String> {
+        val credentials: String = ApiUtils.getCredentials(user.username, user.token)!!
+        val response = ncApiCoroutines.getUserCircles(
+            credentials,
+            ApiUtils.getUrlForUserCircles(user.baseUrl!!)
+        )
+        return response.ocs?.data?.map { it.displayName!! }?.toSet() ?: emptySet()
+    }
 }

app/src/main/java/com/nextcloud/talk/chat/viewmodels/ChatViewModel.kt

@@ -50,6 +50,9 @@ import io.reactivex.schedulers.Schedulers
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.first
@@ -233,6 +236,12 @@ class ChatViewModel @Inject constructor(
     val leaveRoomViewState: LiveData<ViewState>
         get() = _leaveRoomViewState
 
+    private val _userGroups = MutableStateFlow<Set<String>>(emptySet())
+    val userGroups: StateFlow<Set<String>> = _userGroups.asStateFlow()
+
+    private val _userCircles = MutableStateFlow<Set<String>>(emptySet())
+    val userCircles: StateFlow<Set<String>> = _userCircles.asStateFlow()
+
     object ChatMessageInitialState : ViewState
     object ChatMessageStartState : ViewState
     object ChatMessageUpdateState : ViewState
@@ -355,6 +364,13 @@ class ChatViewModel @Inject constructor(
         _getReminderExistState.value = GetReminderStateSet
     }
 
+    fun fetchUserData(user: User) {
+        viewModelScope.launch {
+            _userGroups.value = chatNetworkDataSource.getUserGroups(user)
+            _userCircles.value = chatNetworkDataSource.getUserCircles(user)
+        }
+    }
+
     fun deleteReminder(user: User, roomToken: String, messageId: String, chatApiVersion: Int) {
         chatNetworkDataSource.deleteReminder(user, roomToken, messageId, chatApiVersion)
             .subscribeOn(Schedulers.io())

app/src/main/java/com/nextcloud/talk/models/json/usergroups/UserGroupsData.kt

@@ -0,0 +1,23 @@
+/*
+ * Nextcloud Talk - Android Client
+ *
+ * SPDX-FileCopyrightText: 2025 Sowjanya Kota <sowjanya.kch@gmail.com>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package com.nextcloud.talk.models.json.usergroups
+
+import android.os.Parcelable
+import com.bluelinelabs.logansquare.annotation.JsonField
+import com.bluelinelabs.logansquare.annotation.JsonObject
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+@JsonObject
+data class UserGroupsData(
+    @JsonField(name = ["groups"])
+    var groups: List<String>?
+) : Parcelable {
+    // This constructor is added to work with the 'com.bluelinelabs.logansquare.annotation.JsonObject'
+    constructor() : this(null)
+}

app/src/main/java/com/nextcloud/talk/models/json/usergroups/UserGroupsOCS.kt

@@ -19,7 +19,7 @@ data class UserGroupsOCS(
     @JsonField(name = ["meta"])
     var meta: GenericMeta?,
     @JsonField(name = ["data"])
-    var data: List<String>?
+    var data: UserGroupsData?
 ) : Parcelable {
     // This constructor is added to work with the 'com.bluelinelabs.logansquare.annotation.JsonObject'
     constructor() : this(null, null)

app/src/main/java/com/nextcloud/talk/utils/message/MessageUtils.kt

@@ -30,6 +30,7 @@ import io.noties.markwon.ext.tasklist.TaskListDrawable
 import io.noties.markwon.ext.tasklist.TaskListPlugin
 
 class MessageUtils(val context: Context) {
+
     fun enrichChatReplyMessageText(
         context: Context,
         message: ChatMessage,