87 lines
3.6 KiB
Kotlin
87 lines
3.6 KiB
Kotlin
package com.keylesspalace.tusky.components.filters
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import android.view.View
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.viewModelScope
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import at.connyduck.calladapter.networkresult.fold
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import com.google.android.material.snackbar.Snackbar
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import com.keylesspalace.tusky.appstore.EventHub
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import com.keylesspalace.tusky.appstore.PreferenceChangedEvent
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import com.keylesspalace.tusky.entity.Filter
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import com.keylesspalace.tusky.network.MastodonApi
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import com.keylesspalace.tusky.util.isHttpNotFound
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import kotlinx.coroutines.flow.Flow
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import kotlinx.coroutines.flow.MutableStateFlow
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import kotlinx.coroutines.launch
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import javax.inject.Inject
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class FiltersViewModel @Inject constructor(
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private val api: MastodonApi,
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private val eventHub: EventHub
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) : ViewModel() {
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enum class LoadingState {
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INITIAL, LOADING, LOADED, ERROR_NETWORK, ERROR_OTHER
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}
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data class State(val filters: List<Filter>, val loadingState: LoadingState)
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val state: Flow<State> get() = _state
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private val _state = MutableStateFlow(State(emptyList(), LoadingState.INITIAL))
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fun load() {
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this@FiltersViewModel._state.value = _state.value.copy(loadingState = LoadingState.LOADING)
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viewModelScope.launch {
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api.getFilters().fold(
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{ filters ->
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this@FiltersViewModel._state.value = State(filters, LoadingState.LOADED)
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},
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{ throwable ->
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if (throwable.isHttpNotFound()) {
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api.getFiltersV1().fold(
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{ filters ->
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this@FiltersViewModel._state.value = State(filters.map { it.toFilter() }, LoadingState.LOADED)
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},
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{ _ ->
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// TODO log errors (also below)
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this@FiltersViewModel._state.value = _state.value.copy(loadingState = LoadingState.ERROR_OTHER)
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}
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)
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this@FiltersViewModel._state.value = _state.value.copy(loadingState = LoadingState.ERROR_OTHER)
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} else {
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this@FiltersViewModel._state.value = _state.value.copy(loadingState = LoadingState.ERROR_NETWORK)
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}
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}
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)
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}
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}
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fun deleteFilter(filter: Filter, parent: View) {
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viewModelScope.launch {
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api.deleteFilter(filter.id).fold(
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{
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this@FiltersViewModel._state.value = State(this@FiltersViewModel._state.value.filters.filter { it.id != filter.id }, LoadingState.LOADED)
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for (context in filter.context) {
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eventHub.dispatch(PreferenceChangedEvent(context))
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}
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},
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{ throwable ->
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if (throwable.isHttpNotFound()) {
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api.deleteFilterV1(filter.id).fold(
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{
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this@FiltersViewModel._state.value = State(this@FiltersViewModel._state.value.filters.filter { it.id != filter.id }, LoadingState.LOADED)
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},
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{
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Snackbar.make(parent, "Error deleting filter '${filter.title}'", Snackbar.LENGTH_SHORT).show()
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}
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)
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} else {
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Snackbar.make(parent, "Error deleting filter '${filter.title}'", Snackbar.LENGTH_SHORT).show()
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}
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}
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)
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}
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}
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}
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