LoginViewModel - Context 참조 제거

feature/login/src/main/java/com/goalpanzi/mission_mate/feature/login/LoginManager.kt

@@ -0,0 +1,61 @@
+package com.goalpanzi.mission_mate.feature.login
+
+import android.content.Context
+import androidx.credentials.CredentialManager
+import androidx.credentials.CustomCredential
+import androidx.credentials.GetCredentialRequest
+import androidx.credentials.GetCredentialResponse
+import com.google.android.libraries.identity.googleid.GetSignInWithGoogleOption
+import com.google.android.libraries.identity.googleid.GoogleIdTokenCredential
+import com.google.android.libraries.identity.googleid.GoogleIdTokenParsingException
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+sealed class LoginData {
+    data class Success(val email : String) : LoginData()
+    data class Failed(val exception: Exception) : LoginData()
+}
+
+class LoginManager (
+    private val context : Context
+) {
+    suspend fun request() : LoginData = withContext(Dispatchers.IO) {
+        val credentialManager = CredentialManager.create(context)
+        val signInWithGoogleOption: GetSignInWithGoogleOption =
+            GetSignInWithGoogleOption.Builder(BuildConfig.CREDENTIAL_WEB_CLIENT_ID)
+                .build()
+
+        val request: GetCredentialRequest = GetCredentialRequest.Builder()
+            .addCredentialOption(signInWithGoogleOption)
+            .build()
+
+        return@withContext try {
+            val result = credentialManager.getCredential(context, request)
+            handleSignIn(result)
+        } catch (e: Exception) {
+            e.printStackTrace()
+            LoginData.Failed(e)
+        }
+    }
+
+    private fun handleSignIn(response: GetCredentialResponse) : LoginData {
+        return when (val credential = response.credential) {
+            is CustomCredential -> {
+                if (credential.type == GoogleIdTokenCredential.TYPE_GOOGLE_ID_TOKEN_CREDENTIAL) {
+                    try {
+                        val googleIdTokenCredential = GoogleIdTokenCredential.createFrom(credential.data)
+                        LoginData.Success(googleIdTokenCredential.id)
+                    } catch (e: GoogleIdTokenParsingException) {
+                        LoginData.Failed(e)
+                    }
+                }else {
+                    LoginData.Failed(RuntimeException("Credential Type not equals TYPE_GOOGLE_ID_TOKEN_CREDENTIAL"))
+                }
+            }
+
+            else -> {
+                LoginData.Failed(RuntimeException("Credential is not CustomCredential"))
+            }
+        }
+    }
+}

feature/login/src/main/java/com/goalpanzi/mission_mate/feature/login/LoginScreen.kt

@@ -11,13 +11,14 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.statusBarsPadding
 import androidx.compose.foundation.layout.widthIn
 import androidx.compose.foundation.layout.wrapContentHeight
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -33,16 +34,18 @@ import androidx.hilt.navigation.compose.hiltViewModel
 import com.goalpanzi.mission_mate.core.designsystem.theme.ColorWhite_FFFFFFFF
 import com.goalpanzi.mission_mate.core.designsystem.theme.Color_FFFF5632
 import com.goalpanzi.mission_mate.core.designsystem.theme.MissionMateTypography
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
 
 @Composable
 fun LoginRoute(
     onLoginSuccess: (Boolean) -> Unit,
     modifier: Modifier = Modifier,
+    coroutineScope : CoroutineScope = rememberCoroutineScope(),
+    loginManager: LoginManager = rememberLoginManager(),
     viewModel: LoginViewModel = hiltViewModel()
 ) {
-    val context = LocalContext.current
-
     LaunchedEffect(true) {
         viewModel.eventFlow.collectLatest {
             when (it) {
@@ -54,10 +57,22 @@ fun LoginRoute(
 
     LoginScreen(
         modifier = modifier,
-        onGoogleLoginClick = { viewModel.request(context) }
+        onGoogleLoginClick = {
+            coroutineScope.launch {
+                viewModel.login(loginManager.request())
+            }
+        }
     )
 }
 
+@Composable
+private fun rememberLoginManager(): LoginManager {
+    val context = LocalContext.current
+    return remember {
+        LoginManager(context)
+    }
+}
+
 @Composable
 fun LoginScreen(
     modifier: Modifier = Modifier,

feature/login/src/main/java/com/goalpanzi/mission_mate/feature/login/LoginViewModel.kt

@@ -1,16 +1,8 @@
 package com.goalpanzi.mission_mate.feature.login
 
-import android.content.Context
-import androidx.credentials.CredentialManager
-import androidx.credentials.CustomCredential
-import androidx.credentials.GetCredentialRequest
-import androidx.credentials.GetCredentialResponse
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.goalpanzi.mission_mate.core.domain.auth.usecase.LoginUseCase
-import com.google.android.libraries.identity.googleid.GetSignInWithGoogleOption
-import com.google.android.libraries.identity.googleid.GoogleIdTokenCredential
-import com.google.android.libraries.identity.googleid.GoogleIdTokenParsingException
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.asSharedFlow
@@ -25,48 +17,26 @@ class LoginViewModel @Inject constructor(
     private val _eventFlow = MutableSharedFlow<LoginEvent>()
     val eventFlow = _eventFlow.asSharedFlow()
 
-    fun request(context: Context) {
-        viewModelScope.launch {
-            val credentialManager = CredentialManager.create(context)
-            val signInWithGoogleOption: GetSignInWithGoogleOption =
-                GetSignInWithGoogleOption.Builder(BuildConfig.CREDENTIAL_WEB_CLIENT_ID)
-                    .build()
-
-            val request: GetCredentialRequest = GetCredentialRequest.Builder()
-                .addCredentialOption(signInWithGoogleOption)
-                .build()
-
-            try {
-                val result = credentialManager.getCredential(context, request)
-                handleSignIn(result)
-            } catch (e: Exception) {
-                e.printStackTrace()
-            }
-        }
-    }
-
-    private suspend fun handleSignIn(response: GetCredentialResponse) {
-        when (val credential = response.credential) {
-            is CustomCredential -> {
-                if (credential.type == GoogleIdTokenCredential.TYPE_GOOGLE_ID_TOKEN_CREDENTIAL) {
+    fun login(loginData: LoginData){
+        when(loginData){
+            is LoginData.Success -> {
+                viewModelScope.launch {
                     try {
-                        val googleIdTokenCredential = GoogleIdTokenCredential.createFrom(credential.data)
-                        val result = loginUseCase.requestGoogleLogin(email = googleIdTokenCredential.id)
+                        val result = loginUseCase.requestGoogleLogin(email = loginData.email)
                         _eventFlow.emit(
                             result?.let {
                                 LoginEvent.Success(it.isProfileSet)
                             } ?: run {
                                 LoginEvent.Error
                             }
                         )
-                    } catch (e: GoogleIdTokenParsingException) {
+                    }catch (e: Exception){
                         e.printStackTrace()
                     }
                 }
             }
-
-            else -> {
-                // TODO : error event
+            is LoginData.Failed -> {
+                loginData.exception.printStackTrace()
             }
         }
     }