database-design branch - feat: display number of friends in the profile screen

Author: thebeo2004

app/src/main/java/com/example/harmonyhub/ui/profile/ProfileScreen.kt

@@ -1,5 +1,6 @@
 package com.example.harmonyhub.ui.profile
 
+import android.widget.Toast
 import androidx.compose.foundation.Image
 import androidx.compose.material3.TextButton
 import androidx.compose.foundation.gestures.detectTapGestures
@@ -21,15 +22,18 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.livedata.observeAsState
 import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.TextStyle
@@ -39,6 +43,9 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.hilt.navigation.compose.hiltViewModel
 import com.example.harmonyhub.R
+import com.example.harmonyhub.domain.repository.FirebaseUser
+import com.example.harmonyhub.presentation.viewmodel.FriendListFetchingState
+import com.example.harmonyhub.presentation.viewmodel.FriendListViewModel
 import com.example.harmonyhub.presentation.viewmodel.UserDataViewModel
 import com.example.harmonyhub.ui.theme.NotoSans
 
@@ -47,6 +54,7 @@ fun ProfileScreen(
     onBackButtonClicked: () -> Unit,
     onFriendsButtonClicked: () -> Unit,
     userDataViewModel: UserDataViewModel = hiltViewModel(),
+    friendListViewModel: FriendListViewModel = hiltViewModel()
 ) {
     val focusManager = LocalFocusManager.current
 
@@ -56,6 +64,39 @@ fun ProfileScreen(
 
     val isImageDialogOpen = remember { mutableStateOf(false) }
 
+    val friendListFetchingState = friendListViewModel.dataFetchingState.observeAsState()
+    val friendList = remember { mutableStateListOf<FirebaseUser>() }
+    val context = LocalContext.current
+
+    LaunchedEffect(Unit) {
+        friendListViewModel.getFriends()
+    }
+
+    LaunchedEffect(friendListFetchingState.value) {
+        when(friendListFetchingState.value) {
+            is FriendListFetchingState.Error -> {
+                val message = (friendListFetchingState.value as FriendListFetchingState.Error).message
+                Toast.makeText(context, message, Toast.LENGTH_SHORT).show()
+                friendListViewModel.resetDataFetchingState()
+            }
+            is FriendListFetchingState.SuccessOnGetFriends -> {
+                when (val data = (friendListFetchingState.value as FriendListFetchingState.SuccessOnGetFriends).data) {
+                    is String -> {
+                        val message = data as String
+                        Toast.makeText(context, message, Toast.LENGTH_SHORT).show()
+                        friendListViewModel.resetDataFetchingState()
+                    }
+                    is List<*> -> {
+                        friendList.clear()
+                        friendList.addAll(data as List<FirebaseUser>)
+                        friendListViewModel.resetDataFetchingState()
+                    }
+                }
+            }
+            else -> {}
+        }
+    }
+
     if (isImageDialogOpen.value) {
         AlertDialog(
             onDismissRequest = { isImageDialogOpen.value = false },
@@ -207,7 +248,7 @@ fun ProfileScreen(
             )
             Spacer(modifier = Modifier.height(8.dp))
 
-            val numberOfFriends = 10
+            val numberOfFriends = friendList.size
             Text(
                 text = "$numberOfFriends bạn bè",
                 style = TextStyle(