Introduce Generic BaseMoleculeViewModel

mr3y-the-programmer · Mar 13, 2024 · dd558fc · dd558fc
1 parent 11296a7
commit dd558fc
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Showing 6 changed files with 25 additions and 47 deletions.
diff --git a/app/src/main/kotlin/com/mr3y/podcaster/ui/presenter/BaseMoleculeViewModel.kt b/app/src/main/kotlin/com/mr3y/podcaster/ui/presenter/BaseMoleculeViewModel.kt
@@ -0,0 +1,15 @@
+package com.mr3y.podcaster.ui.presenter
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import app.cash.molecule.AndroidUiDispatcher
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.MutableSharedFlow
+
+abstract class BaseMoleculeViewModel<Event : Any> : ViewModel() {
+
+    protected val events = MutableSharedFlow<Event>(extraBufferCapacity = 20)
+
+    protected val moleculeScope = CoroutineScope(viewModelScope.coroutineContext + AndroidUiDispatcher.Main)
+
+}
diff --git a/app/src/main/kotlin/com/mr3y/podcaster/ui/presenter/downloads/DownloadsViewModel.kt b/app/src/main/kotlin/com/mr3y/podcaster/ui/presenter/downloads/DownloadsViewModel.kt
@@ -9,14 +9,11 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.runtime.snapshotFlow
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import app.cash.molecule.AndroidUiDispatcher
 import app.cash.molecule.RecompositionMode
 import app.cash.molecule.launchMolecule
 import com.mr3y.podcaster.core.data.PodcastsRepository
+import com.mr3y.podcaster.ui.presenter.BaseMoleculeViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.drop
 import kotlinx.coroutines.flow.filter
 import kotlinx.coroutines.launch
@@ -25,9 +22,7 @@ import javax.inject.Inject
 @HiltViewModel
 class DownloadsViewModel @Inject constructor(
     private val podcastsRepository: PodcastsRepository,
-) : ViewModel() {
-
-    private val moleculeScope = CoroutineScope(viewModelScope.coroutineContext + AndroidUiDispatcher.Main)
+) : BaseMoleculeViewModel<Nothing>() {
 
     val state = moleculeScope.launchMolecule(mode = RecompositionMode.ContextClock) {
         DownloadsPresenter(repository = podcastsRepository)

diff --git a/...src/main/kotlin/com/mr3y/podcaster/ui/presenter/episodedetails/EpisodeDetailsViewModel.kt b/...src/main/kotlin/com/mr3y/podcaster/ui/presenter/episodedetails/EpisodeDetailsViewModel.kt
@@ -9,31 +9,23 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.lifecycle.SavedStateHandle
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import app.cash.molecule.AndroidUiDispatcher
 import app.cash.molecule.RecompositionMode
 import app.cash.molecule.launchMolecule
 import com.kiwi.navigationcompose.typed.decodeArguments
 import com.mr3y.podcaster.core.data.PodcastsRepository
 import com.mr3y.podcaster.core.model.Episode
 import com.mr3y.podcaster.ui.navigation.Destinations
+import com.mr3y.podcaster.ui.presenter.BaseMoleculeViewModel
 import com.mr3y.podcaster.ui.presenter.RefreshResult
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.MutableSharedFlow
 import javax.inject.Inject
 
 @HiltViewModel
 class EpisodeDetailsViewModel @Inject constructor(
     private val podcastsRepository: PodcastsRepository,
     private val savedStateHandle: SavedStateHandle,
-) : ViewModel() {
-
-    private val events = MutableSharedFlow<EpisodeDetailsUIEvent>(extraBufferCapacity = 20)
-
-    private val moleculeScope = CoroutineScope(viewModelScope.coroutineContext + AndroidUiDispatcher.Main)
+) : BaseMoleculeViewModel<EpisodeDetailsUIEvent>() {
 
     private val navArguments = savedStateHandle.decodeArguments<Destinations.EpisodeDetails>()
 

diff --git a/app/src/main/kotlin/com/mr3y/podcaster/ui/presenter/explore/ExploreViewModel.kt b/app/src/main/kotlin/com/mr3y/podcaster/ui/presenter/explore/ExploreViewModel.kt
@@ -9,27 +9,19 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.text.input.TextFieldValue
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import app.cash.molecule.AndroidUiDispatcher
 import app.cash.molecule.RecompositionMode
 import app.cash.molecule.launchMolecule
 import com.github.michaelbull.result.mapBoth
 import com.mr3y.podcaster.core.data.PodcastsRepository
+import com.mr3y.podcaster.ui.presenter.BaseMoleculeViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.MutableSharedFlow
 import javax.inject.Inject
 
 @HiltViewModel
 class ExploreViewModel @Inject constructor(
     private val podcastsRepository: PodcastsRepository,
-) : ViewModel() {
-
-    private val events = MutableSharedFlow<ExploreUIEvent>(extraBufferCapacity = 20)
-
-    private val moleculeScope = CoroutineScope(viewModelScope.coroutineContext + AndroidUiDispatcher.Main)
+) : BaseMoleculeViewModel<ExploreUIEvent>() {
 
     val state = moleculeScope.launchMolecule(mode = RecompositionMode.ContextClock) {
         ExplorePresenter(repository = podcastsRepository, events = events)

diff --git a/...src/main/kotlin/com/mr3y/podcaster/ui/presenter/podcastdetails/PodcastDetailsViewModel.kt b/...src/main/kotlin/com/mr3y/podcaster/ui/presenter/podcastdetails/PodcastDetailsViewModel.kt
@@ -9,21 +9,17 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.lifecycle.SavedStateHandle
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import app.cash.molecule.AndroidUiDispatcher
 import app.cash.molecule.RecompositionMode
 import app.cash.molecule.launchMolecule
 import com.kiwi.navigationcompose.typed.decodeArguments
 import com.mr3y.podcaster.core.data.PodcastsRepository
 import com.mr3y.podcaster.core.model.Episode
 import com.mr3y.podcaster.core.model.Podcast
 import com.mr3y.podcaster.ui.navigation.Destinations
+import com.mr3y.podcaster.ui.presenter.BaseMoleculeViewModel
 import com.mr3y.podcaster.ui.presenter.RefreshResult
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.launch
 import javax.inject.Inject
@@ -32,11 +28,7 @@ import javax.inject.Inject
 class PodcastDetailsViewModel @Inject constructor(
     private val podcastsRepository: PodcastsRepository,
     private val savedStateHandle: SavedStateHandle,
-) : ViewModel() {
-
-    private val events = MutableSharedFlow<PodcastDetailsUIEvent>(extraBufferCapacity = 20)
-
-    private val moleculeScope = CoroutineScope(viewModelScope.coroutineContext + AndroidUiDispatcher.Main)
+) : BaseMoleculeViewModel<PodcastDetailsUIEvent>() {
 
     private val navArguments = savedStateHandle.decodeArguments<Destinations.PodcastDetails>()
 

diff --git a/app/src/main/kotlin/com/mr3y/podcaster/ui/presenter/subscriptions/SubscriptionsViewModel.kt b/app/src/main/kotlin/com/mr3y/podcaster/ui/presenter/subscriptions/SubscriptionsViewModel.kt
@@ -9,19 +9,15 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.runtime.snapshotFlow
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import app.cash.molecule.AndroidUiDispatcher
 import app.cash.molecule.RecompositionMode
 import app.cash.molecule.launchMolecule
 import com.mr3y.podcaster.core.data.PodcastsRepository
+import com.mr3y.podcaster.ui.presenter.BaseMoleculeViewModel
 import com.mr3y.podcaster.ui.presenter.RefreshResult
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.async
 import kotlinx.coroutines.awaitAll
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.drop
 import kotlinx.coroutines.flow.filter
 import kotlinx.coroutines.launch
@@ -30,11 +26,7 @@ import javax.inject.Inject
 @HiltViewModel
 class SubscriptionsViewModel @Inject constructor(
     private val podcastsRepository: PodcastsRepository,
-) : ViewModel() {
-
-    private val events = MutableSharedFlow<SubscriptionsUIEvent>(extraBufferCapacity = 20)
-
-    private val moleculeScope = CoroutineScope(viewModelScope.coroutineContext + AndroidUiDispatcher.Main)
+) : BaseMoleculeViewModel<SubscriptionsUIEvent>() {
 
     val state = moleculeScope.launchMolecule(mode = RecompositionMode.ContextClock) {
         SubscriptionsPresenter(repository = podcastsRepository, events = events)