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refactor: refactor WelcomeActivity and associated logic (#6996)
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30 changes: 0 additions & 30 deletions
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app/src/main/java/com/github/libretube/ui/models/WelcomeModel.kt
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112 changes: 112 additions & 0 deletions
112
app/src/main/java/com/github/libretube/ui/models/WelcomeViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package com.github.libretube.ui.models | ||
|
|
||
| import android.content.Context | ||
| import android.net.Uri | ||
| import android.os.Parcelable | ||
| import androidx.annotation.StringRes | ||
| import androidx.lifecycle.SavedStateHandle | ||
| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.ViewModelProvider | ||
| import androidx.lifecycle.ViewModelProvider.AndroidViewModelFactory.Companion.APPLICATION_KEY | ||
| import androidx.lifecycle.asLiveData | ||
| import androidx.lifecycle.createSavedStateHandle | ||
| import androidx.lifecycle.viewModelScope | ||
| import androidx.lifecycle.viewmodel.initializer | ||
| import androidx.lifecycle.viewmodel.viewModelFactory | ||
| import com.github.libretube.R | ||
| import com.github.libretube.api.InstanceRepository | ||
| import com.github.libretube.api.RetrofitInstance | ||
| import com.github.libretube.api.obj.PipedInstance | ||
| import com.github.libretube.constants.PreferenceKeys | ||
| import com.github.libretube.helpers.BackupHelper | ||
| import com.github.libretube.helpers.PreferenceHelper | ||
| import kotlinx.coroutines.launch | ||
| import kotlinx.parcelize.Parcelize | ||
|
|
||
| class WelcomeViewModel( | ||
| private val instanceRepository: InstanceRepository, | ||
| private val savedStateHandle: SavedStateHandle, | ||
| ) : ViewModel() { | ||
|
|
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| private val _uiState = savedStateHandle.getStateFlow(UI_STATE, UiState()) | ||
| val uiState = _uiState.asLiveData() | ||
|
|
||
| init { | ||
| viewModelScope.launch { | ||
| instanceRepository.getInstances() | ||
| .onSuccess { instances -> | ||
| savedStateHandle[UI_STATE] = _uiState.value.copy(instances = instances) | ||
| } | ||
| .onFailure { | ||
| savedStateHandle[UI_STATE] = _uiState.value.copy( | ||
| instances = instanceRepository.getInstancesFallback(), | ||
| error = R.string.failed_fetching_instances, | ||
| ) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| fun setSelectedInstanceIndex(index: Int) { | ||
| savedStateHandle[UI_STATE] = _uiState.value.copy(selectedInstanceIndex = index) | ||
| } | ||
|
|
||
| fun saveSelectedInstance() { | ||
| val selectedInstanceIndex = _uiState.value.selectedInstanceIndex | ||
| if (selectedInstanceIndex == null) { | ||
| savedStateHandle[UI_STATE] = _uiState.value.copy(error = R.string.choose_instance) | ||
| } else { | ||
| PreferenceHelper.putString( | ||
| PreferenceKeys.FETCH_INSTANCE, | ||
| _uiState.value.instances[selectedInstanceIndex].apiUrl | ||
| ) | ||
| refreshAndNavigate() | ||
| } | ||
| } | ||
|
|
||
| fun restoreAdvancedBackup(context: Context, uri: Uri) { | ||
| viewModelScope.launch { | ||
| BackupHelper.restoreAdvancedBackup(context, uri) | ||
|
|
||
| // only skip the welcome activity if the restored backup contains an instance | ||
| val instancePref = PreferenceHelper.getString(PreferenceKeys.FETCH_INSTANCE, "") | ||
| if (instancePref.isNotEmpty()) { | ||
| refreshAndNavigate() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private fun refreshAndNavigate() { | ||
| // refresh the api urls since they have changed likely | ||
| RetrofitInstance.lazyMgr.reset() | ||
| savedStateHandle[UI_STATE] = _uiState.value.copy(navigateToMain = Unit) | ||
| } | ||
|
|
||
| fun onErrorShown() { | ||
| savedStateHandle[UI_STATE] = _uiState.value.copy(error = null) | ||
| } | ||
|
|
||
| fun onNavigated() { | ||
| savedStateHandle[UI_STATE] = _uiState.value.copy(navigateToMain = null) | ||
| } | ||
|
|
||
| @Parcelize | ||
| data class UiState( | ||
| val selectedInstanceIndex: Int? = null, | ||
| val instances: List<PipedInstance> = emptyList(), | ||
| @StringRes val error: Int? = null, | ||
| val navigateToMain: Unit? = null, | ||
| ) : Parcelable | ||
|
|
||
| companion object { | ||
| private const val UI_STATE = "ui_state" | ||
|
|
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| val Factory: ViewModelProvider.Factory = viewModelFactory { | ||
| initializer { | ||
| WelcomeViewModel( | ||
| instanceRepository = InstanceRepository(this[APPLICATION_KEY]!!), | ||
| savedStateHandle = createSavedStateHandle(), | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } |
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