ref: 93a6775f0368bca54e65214a198aad04e8cff92a
app/src/main/java/xyz/apiote/bimba/czwek/dashboard/ui/home/HomeViewModel.kt
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// SPDX-FileCopyrightText: Adam Evyčędo // // SPDX-License-Identifier: GPL-3.0-or-later package xyz.apiote.bimba.czwek.dashboard.ui.home import android.content.Context import android.os.Handler import android.os.Looper import android.text.Editable import android.text.TextWatcher import android.util.Log import androidx.lifecycle.LiveData import androidx.lifecycle.MutableLiveData import androidx.lifecycle.ViewModel import androidx.lifecycle.viewModelScope import kotlinx.coroutines.async import kotlinx.coroutines.awaitAll import kotlinx.coroutines.coroutineScope import kotlinx.coroutines.launch import xyz.apiote.bimba.czwek.repo.Departure import xyz.apiote.bimba.czwek.repo.Favourite import xyz.apiote.bimba.czwek.repo.FeedInfo import xyz.apiote.bimba.czwek.repo.OfflineRepository import xyz.apiote.bimba.czwek.repo.OnlineRepository import xyz.apiote.bimba.czwek.repo.Queryable import xyz.apiote.bimba.czwek.repo.TrafficResponseException import xyz.apiote.bimba.czwek.settings.feeds.FeedsSettings import java.sql.SQLException import java.util.Optional class HomeViewModel : ViewModel() { private val mutableQueryables = MutableLiveData<List<Queryable>>() val queryables: LiveData<List<Queryable>> = mutableQueryables var feeds: Map<String, FeedInfo>? = null var feedsSettings: FeedsSettings? = null private val mutableFavourites = MutableLiveData<List<Favourite>>() val favourites: LiveData<List<Favourite>> = mutableFavourites private val mutableDepartures = MutableLiveData<Map<String, Optional<Departure>>>() val departures: LiveData<Map<String, Optional<Departure>>> = mutableDepartures fun getQueryables(query: String, context: Context) { viewModelScope.launch { try { getFeeds(context) mutableQueryables.value = OnlineRepository().queryQueryables(query, context) ?: emptyList() } catch (e: TrafficResponseException) { // XXX intentionally no error showing in suggestions Log.e("Suggestion", "$e") } } } fun getFavourites(context: Context) { viewModelScope.launch { try { getFeeds(context) val repository = OfflineRepository(context) mutableFavourites.value = repository.getFavourites(feedsSettings?.activeFeeds() ?: emptySet()) repository.close() } catch (e: SQLException) { Log.w("FavouritesForFavourite", "$e") } getDeparturesOnly(context) } } fun getDepartures(context: Context) { viewModelScope.launch { getDeparturesOnly(context) } } private suspend fun getDeparturesOnly(context: Context) { coroutineScope { if (favourites.value == null) return@coroutineScope mutableDepartures.value = favourites.value!!.map { favourite -> async { try { val repository = OnlineRepository() val stopDepartures = repository.getDepartures( favourite.feedID, favourite.stopCode, null, context, 12 // XXX heuristics ) stopDepartures?.let { sDs -> if (sDs.departures.isEmpty()) { Pair(favourite.feedID+favourite.stopCode, Optional.empty()) } else { Pair(favourite.feedID+favourite.stopCode, Optional.ofNullable(sDs.departures.find { departure -> favourite.lines.isEmpty() or favourite.lines.contains( departure.vehicle.Line.name ) })) } } ?: Pair(favourite.feedID+favourite.stopCode, Optional.empty()) } catch (e: TrafficResponseException) { Log.w("DeparturesForFavourite", "$e") Pair(favourite.feedID+favourite.stopCode, Optional.empty()) } } }.awaitAll().associate { it } } } private suspend fun getFeeds(context: Context) { val repository = OfflineRepository(context) feeds = repository.getFeeds(context) repository.close() feedsSettings = FeedsSettings.load(context) } fun saveFavourites(newFavourites: List<Favourite>, context: Context) { viewModelScope.launch { try { val repository = OfflineRepository(context) repository.saveFavourites(newFavourites.toSet()) mutableFavourites.value = newFavourites repository.close() } catch (e: SQLException) { Log.w("FavouritesForFavourite", "$e") } } } inner class SearchBarWatcher(private val context: Context) : TextWatcher { private val handler = Handler(Looper.getMainLooper()) private var workRunnable = Runnable {} override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) { } override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) { } override fun afterTextChanged(s: Editable?) { handler.removeCallbacks(workRunnable) workRunnable = Runnable { val text = s.toString() getQueryables(text, context) } handler.postDelayed(workRunnable, 750) } } } |