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- Firebase SiginIn 작업
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65 changes: 65 additions & 0 deletions
65
app/src/main/java/com/moyerun/moyeorun_android/common/EventLiveData.kt
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| package com.moyerun.moyeorun_android.common | ||
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| import androidx.lifecycle.LiveData | ||
| import androidx.lifecycle.MutableLiveData | ||
| import androidx.lifecycle.Observer | ||
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| typealias EventLiveData<T> = LiveData<Event<T>> | ||
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| class MutableEventLiveData<T> : MutableLiveData<Event<T>>() { | ||
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| var event: T? | ||
| @Deprecated("getter is NOT supported!", level = DeprecationLevel.ERROR) | ||
| get() = throw UnsupportedOperationException() | ||
| set(value) { | ||
| if (value != null) { | ||
| setValue(Event(value)) | ||
| } | ||
| } | ||
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| fun postEvent(value: T?) { | ||
| if (value != null) { | ||
| postValue(Event(value)) | ||
| } | ||
| } | ||
| } | ||
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| /** | ||
| * Used as a wrapper for data that is exposed via a LiveData that represents an event. | ||
| */ | ||
| open class Event<out T>(private val content: T) { | ||
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| var hasBeenHandled = false | ||
| private set // Allow external read but not write | ||
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| /** | ||
| * Returns the content and prevents its use again. | ||
| */ | ||
| fun getContentIfNotHandled(): T? { | ||
| return if (hasBeenHandled) { | ||
| null | ||
| } else { | ||
| hasBeenHandled = true | ||
| content | ||
| } | ||
| } | ||
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| /** | ||
| * Returns the content, even if it's already been handled. | ||
| */ | ||
| fun peekContent(): T = content | ||
| } | ||
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| /** | ||
| * An [Observer] for [Event]s, simplifying the pattern of checking if the [Event]'s content has | ||
| * already been handled. | ||
| * | ||
| * [onEventUnhandledContent] is *only* called if the [Event]'s contents has not been handled. | ||
| */ | ||
| class EventObserver<T>(private val onEventUnhandledContent: (T) -> Unit) : Observer<Event<T>> { | ||
| override fun onChanged(event: Event<T>?) { | ||
| event?.getContentIfNotHandled()?.let { value -> | ||
| onEventUnhandledContent(value) | ||
| } | ||
| } | ||
| } |
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5 changes: 5 additions & 0 deletions
5
app/src/main/java/com/moyerun/moyeorun_android/login/LoginEvent.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,5 @@ | ||
| package com.moyerun.moyeorun_android.login | ||
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| enum class LoginEvent { | ||
| Success, NewUser, Error | ||
| } |
14 changes: 14 additions & 0 deletions
14
app/src/main/java/com/moyerun/moyeorun_android/login/LoginModule.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,14 @@ | ||
| package com.moyerun.moyeorun_android.login | ||
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| import dagger.Module | ||
| import dagger.Provides | ||
| import dagger.hilt.InstallIn | ||
| import dagger.hilt.android.components.ViewModelComponent | ||
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| @Module | ||
| @InstallIn(ViewModelComponent::class) | ||
| class LoginModule { | ||
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| @Provides | ||
| fun providesLoginRepository(): LoginRepository = LoginRepository() | ||
| } |
59 changes: 59 additions & 0 deletions
59
app/src/main/java/com/moyerun/moyeorun_android/login/LoginRepository.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,59 @@ | ||
| package com.moyerun.moyeorun_android.login | ||
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| import com.google.firebase.auth.FirebaseUser | ||
| import com.google.firebase.auth.GoogleAuthProvider | ||
| import com.google.firebase.auth.ktx.auth | ||
| import com.google.firebase.ktx.Firebase | ||
| import kotlinx.coroutines.* | ||
| import java.lang.IllegalStateException | ||
| import kotlin.coroutines.resume | ||
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| class LoginRepository( | ||
| private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO | ||
| ) { | ||
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| // Todo: 모여런 서버 붙일 때 반환 타입 조정 | ||
| suspend fun signIn(idToken: String): ApiResponse<Unit> { | ||
| val firebaseSignInResult = withContext(coroutineDispatcher) { signInWithFirebaseCredential(idToken) } | ||
| if (firebaseSignInResult is ApiResponse.Failure) { | ||
| return firebaseSignInResult | ||
| } | ||
| val moyeorunSignInResult = withContext(coroutineDispatcher) { signInWithMoyeoRun(idToken) } | ||
| if (firebaseSignInResult is ApiResponse.Failure) { | ||
| Firebase.auth.signOut() | ||
| } | ||
| return withContext(coroutineDispatcher) { signInWithMoyeoRun(idToken) } | ||
| } | ||
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| private suspend fun signInWithFirebaseCredential(idToken: String): ApiResponse<FirebaseUser> { | ||
| val firebaseAuth = Firebase.auth | ||
| return suspendCancellableCoroutine { | ||
| val firebaseCredential = GoogleAuthProvider.getCredential(idToken, null) | ||
| firebaseAuth.signInWithCredential(firebaseCredential) | ||
| .addOnCompleteListener { task -> | ||
| val firebaseUser = firebaseAuth.currentUser | ||
| if (firebaseUser != null) { | ||
| it.resume(ApiResponse.Success(firebaseUser)) | ||
| } else { | ||
| it.resume( | ||
| ApiResponse.Failure( | ||
| task.exception | ||
| ?: IllegalStateException("FirebaseAuth Failure: FirebaseUser and Task.exception is null") | ||
| ) | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| private suspend fun signInWithMoyeoRun(idToken: String): ApiResponse<Unit> { | ||
| //Todo: 모여런 서버 signIn | ||
| return ApiResponse.Success(Unit) | ||
| } | ||
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| // Todo: 임시. 네트워크 베이스 코드가 Rebase 되면 대체할 것 | ||
| sealed class ApiResponse<out T> { | ||
| data class Success<T>(val data: T) : ApiResponse<T>() | ||
| data class Failure(val error: Throwable) : ApiResponse<Nothing>() | ||
| } | ||
| } |
39 changes: 39 additions & 0 deletions
39
app/src/main/java/com/moyerun/moyeorun_android/login/LoginViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package com.moyerun.moyeorun_android.login | ||
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| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.viewModelScope | ||
| import com.moyerun.moyeorun_android.common.EventLiveData | ||
| import com.moyerun.moyeorun_android.common.MutableEventLiveData | ||
| import dagger.hilt.android.lifecycle.HiltViewModel | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
| import kotlinx.coroutines.flow.StateFlow | ||
| import kotlinx.coroutines.launch | ||
| import javax.inject.Inject | ||
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| @HiltViewModel | ||
| class LoginViewModel @Inject constructor( | ||
| private val loginRepository: LoginRepository | ||
| ) : ViewModel() { | ||
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| private val _isLoading = MutableStateFlow(false) | ||
| val isLoading: StateFlow<Boolean> | ||
| get() = _isLoading | ||
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| private val _loginEvent = MutableEventLiveData<LoginEvent>() | ||
| val loginEvent: EventLiveData<LoginEvent> | ||
| get() = _loginEvent | ||
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| fun signIn(idToken: String) { | ||
| viewModelScope.launch { | ||
| _isLoading.value = true | ||
| val result = loginRepository.signIn(idToken) | ||
| if (result is LoginRepository.ApiResponse.Success) { | ||
| // Todo: Firebase crashlytics userId 세팅 | ||
| _loginEvent.event = LoginEvent.Success | ||
| } else { | ||
| _loginEvent.event = LoginEvent.Error | ||
| } | ||
| _isLoading.value = false | ||
| } | ||
| } | ||
| } |