Possibly fixed-for-good a bug that caused events to be fetched but not stored properly in the database; I believe this was caused by FetcherActivity.kt sequentially executing nukeEvents() and insertEvents(), but doing both asynchronously, and individually, which could mean that insertEvents() finishes before nukeEvents() and therefore nukeEvents() would delete the old events as well as the new ones. This doesn't seem entirely logical to me, as no ConflictStrategy has been configured, and inserting new events before the old ones have been cleared (since they both start their primary keys at 0) would have crashed the app.

app/src/main/java/com/denizk0461/studip/viewmodel/AppViewModel.kt

@@ -3,7 +3,6 @@ package com.denizk0461.studip.viewmodel
 import android.app.Application
 import androidx.lifecycle.AndroidViewModel
 import androidx.lifecycle.viewModelScope
-import com.denizk0461.studip.data.Dependencies
 import com.denizk0461.studip.db.AppRepository
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -21,7 +20,7 @@ open class AppViewModel(app: Application) : AndroidViewModel(app) {
     /**
      * Reference to the app's repository for database transactions.
      */
-    protected val repo: AppRepository = Dependencies.repo
+    protected val repo: AppRepository = AppRepository.getRepositoryInstance(app)
 
     /**
      * Execute a function asynchronously on the I/O thread. Be careful not to execute UI commands

app/src/main/java/com/denizk0461/studip/viewmodel/CanteenViewModel.kt

@@ -13,7 +13,7 @@ import com.denizk0461.studip.model.*
 class CanteenViewModel(app: Application) : AppViewModel(app) {
 
     // Instantiate a parser, should the user want to refresh the canteen offers
-    private val parser = StwParser()
+    private val parser = StwParser(app)
 
     /**
      * Retrieves all Stud.IP events.

app/src/main/java/com/denizk0461/studip/viewmodel/FetcherViewModel.kt

@@ -1,7 +1,7 @@
 package com.denizk0461.studip.viewmodel
 
 import android.app.Application
-import com.denizk0461.studip.model.StudIPEvent
+import com.denizk0461.studip.data.StudIPParser
 
 /**
  * View model for [com.denizk0461.studip.activity.FetcherActivity]
@@ -10,15 +10,7 @@ import com.denizk0461.studip.model.StudIPEvent
  */
 class FetcherViewModel(app: Application) : AppViewModel(app) {
 
-    /**
-     * Save a list of Stud.IP events to persistent storage asynchronously.
-     *
-     * @param events    list of events to be saved
-     */
-    fun insertEvents(events: List<StudIPEvent>) { doAsync { repo.insertEvents(events) }}
+    private val parser: StudIPParser = StudIPParser(app)
 
-    /**
-     * Delete all Stud.IP events from the database asynchronously.
-     */
-    fun nukeEvents() { doAsync { repo.nukeEvents() } }
+    fun parse(html: String) { doAsync { parser.parse(html, {}) }}
 }