msfjarvis/compose-lobsters
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android: cleanup ClawViewModel

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This commit is contained in:
Harsh Shandilya 2022-02-06 14:59:25 +05:30
parent 06ea10f3b3
commit b6598436b2
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1 changed files with 5 additions and 11 deletions
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16
android/src/main/kotlin/dev/msfjarvis/claw/android/viewmodel/ClawViewModel.kt
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@ -8,13 +8,12 @@ import dagger.hilt.android.lifecycle.HiltViewModel
import dev.msfjarvis.claw.android.paging.LobstersPagingSource
import dev.msfjarvis.claw.api.LobstersApi
import dev.msfjarvis.claw.database.local.SavedPost
import dev.msfjarvis.claw.model.LobstersPostDetails
import javax.inject.Inject
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.flow.first
import kotlinx.coroutines.flow.flow
import kotlinx.coroutines.flow.last
import kotlinx.coroutines.flow.mapLatest
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
@ -27,7 +26,7 @@ constructor(
private val api: LobstersApi,
private val repository: SavedPostsRepository,
) : ViewModel() {
var lastPagingSource: LobstersPagingSource? = null
private var lastPagingSource: LobstersPagingSource? = null
private val savedPosts = flow { repository.savedPosts.collect { emit(it) } }
private val pager =
Pager(PagingConfig(20)) {
@ -37,14 +36,11 @@ constructor(
val pagerFlow
get() = pager.flow
suspend fun isPostSaved(post: SavedPost): Boolean {
return savedPosts.mapLatest { posts -> post in posts }.last()
}
suspend fun isPostSaved(post: SavedPost) = savedPosts.mapLatest { posts -> post in posts }.first()
fun toggleSave(post: SavedPost) {
viewModelScope.launch {
val saved = isPostSaved(post)
println("saved=$saved")
if (saved) {
repository.removePost(post)
} else {
@ -53,10 +49,8 @@ constructor(
}
}
suspend fun getPostComments(postId: String): LobstersPostDetails =
withContext(Dispatchers.IO) {
return@withContext api.getPostDetails(postId)
}
suspend fun getPostComments(postId: String) =
withContext(Dispatchers.IO) { api.getPostDetails(postId) }
fun reloadPosts() {
lastPagingSource?.invalidate()