msfjarvis/compose-lobsters
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android: cleanup ClawViewModel

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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.android.paging.LobstersPagingSource
import dev.msfjarvis.claw.api.LobstersApi import dev.msfjarvis.claw.api.LobstersApi
import dev.msfjarvis.claw.database.local.SavedPost import dev.msfjarvis.claw.database.local.SavedPost
import dev.msfjarvis.claw.model.LobstersPostDetails
import javax.inject.Inject import javax.inject.Inject
import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.ExperimentalCoroutinesApi import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.flow.collect import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.flow.first
import kotlinx.coroutines.flow.flow import kotlinx.coroutines.flow.flow
import kotlinx.coroutines.flow.last
import kotlinx.coroutines.flow.mapLatest import kotlinx.coroutines.flow.mapLatest
import kotlinx.coroutines.launch import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext import kotlinx.coroutines.withContext
@ -27,7 +26,7 @@ constructor(
private val api: LobstersApi, private val api: LobstersApi,
private val repository: SavedPostsRepository, private val repository: SavedPostsRepository,
) : ViewModel() { ) : ViewModel() {
var lastPagingSource: LobstersPagingSource? = null private var lastPagingSource: LobstersPagingSource? = null
private val savedPosts = flow { repository.savedPosts.collect { emit(it) } } private val savedPosts = flow { repository.savedPosts.collect { emit(it) } }
private val pager = private val pager =
Pager(PagingConfig(20)) { Pager(PagingConfig(20)) {
@ -37,14 +36,11 @@ constructor(
val pagerFlow val pagerFlow
get() = pager.flow get() = pager.flow
suspend fun isPostSaved(post: SavedPost): Boolean { suspend fun isPostSaved(post: SavedPost) = savedPosts.mapLatest { posts -> post in posts }.first()
return savedPosts.mapLatest { posts -> post in posts }.last()
}
fun toggleSave(post: SavedPost) { fun toggleSave(post: SavedPost) {
viewModelScope.launch { viewModelScope.launch {
val saved = isPostSaved(post) val saved = isPostSaved(post)
println("saved=$saved")
if (saved) { if (saved) {
repository.removePost(post) repository.removePost(post)
} else { } else {
@ -53,10 +49,8 @@ constructor(
} }
} }
suspend fun getPostComments(postId: String): LobstersPostDetails = suspend fun getPostComments(postId: String) =
withContext(Dispatchers.IO) { withContext(Dispatchers.IO) { api.getPostDetails(postId) }
return@withContext api.getPostDetails(postId)
}
fun reloadPosts() { fun reloadPosts() {
lastPagingSource?.invalidate() lastPagingSource?.invalidate()