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58 changes: 41 additions & 17 deletions
58
...rc/commonMain/kotlin/com/softartdev/notedelight/shared/presentation/main/MainViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,31 +1,55 @@ | ||
| package com.softartdev.notedelight.shared.presentation.main | ||
|
|
||
| import com.softartdev.notedelight.shared.base.BaseStateViewModel | ||
| import com.softartdev.notedelight.shared.db.NoteDAO | ||
| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.viewModelScope | ||
| import com.softartdev.notedelight.shared.db.SafeRepo | ||
| import com.softartdev.notedelight.shared.navigation.AppNavGraph | ||
| import com.softartdev.notedelight.shared.navigation.Router | ||
| import io.github.aakira.napier.Napier | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.IO | ||
| import kotlinx.coroutines.ensureActive | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
| import kotlinx.coroutines.flow.StateFlow | ||
| import kotlinx.coroutines.flow.catch | ||
| import kotlinx.coroutines.flow.flowOn | ||
| import kotlinx.coroutines.flow.launchIn | ||
| import kotlinx.coroutines.flow.map | ||
| import kotlinx.coroutines.flow.onEach | ||
| import kotlinx.coroutines.flow.onStart | ||
| import kotlinx.coroutines.launch | ||
|
|
||
| class MainViewModel( | ||
| private val safeRepo: SafeRepo, | ||
| private val noteDAO: NoteDAO, | ||
| ) : BaseStateViewModel<NoteListResult>() { | ||
|
|
||
| override val loadingResult: NoteListResult = NoteListResult.Loading | ||
| private val router: Router | ||
| ) : ViewModel() { | ||
| private val mutableStateFlow: MutableStateFlow<NoteListResult> = MutableStateFlow( | ||
| value = NoteListResult.Loading | ||
| ) | ||
| val stateFlow: StateFlow<NoteListResult> = mutableStateFlow | ||
|
|
||
| init { | ||
| safeRepo.relaunchListFlowCallback = this::updateNotes | ||
| } | ||
|
|
||
| fun updateNotes() = launch( | ||
| useIdling = false, | ||
| flow = safeRepo.noteDAO.listFlow.map(NoteListResult::Success) | ||
| ) | ||
| fun updateNotes() = viewModelScope.launch(Dispatchers.Main) { | ||
| safeRepo.noteDAO.listFlow | ||
| .onStart { mutableStateFlow.value = NoteListResult.Loading } | ||
| .map(transform = NoteListResult::Success) | ||
| .onEach(action = mutableStateFlow::emit) | ||
| .flowOn(Dispatchers.IO) | ||
| .catch { throwable -> | ||
| Napier.e("❌", throwable) | ||
| val errorName: String = throwable::class.simpleName.orEmpty() | ||
| if (errorName.contains("SQLite")) { | ||
| router.navigateClearingBackStack(AppNavGraph.SignIn.name) | ||
| } else { | ||
| mutableStateFlow.value = NoteListResult.Error(throwable.message) | ||
| } | ||
| }.launchIn(this) | ||
| }.ensureActive() | ||
|
|
||
| override fun errorResult(throwable: Throwable): NoteListResult { | ||
| val errorName: String = throwable::class.simpleName.orEmpty() | ||
| return when { | ||
| errorName.contains("SQLite") -> NoteListResult.NavSignIn | ||
| else -> NoteListResult.Error(throwable.message) | ||
| } | ||
| } | ||
| fun onNoteClicked(id: Long) = router.navigate(route = "${AppNavGraph.Details.name}/$id") | ||
|
|
||
| fun onSettingsClicked() = router.navigate(route = AppNavGraph.Settings.name) | ||
| } |
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