Fixed app crashing on invoking MainViewModel.sourceName.value

app/build.gradle

@@ -38,7 +38,7 @@ android {
         minSdkVersion 16
         targetSdkVersion 30
         versionCode 64
-        versionName "6.0.0-alpha1"
+        versionName "6.0.0-alpha2"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
     }

app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt

@@ -33,7 +33,6 @@ import android.widget.ImageView
 import android.widget.TextView
 import androidx.activity.viewModels
 import androidx.appcompat.app.AlertDialog
-import androidx.core.view.GravityCompat
 import androidx.core.view.ViewCompat
 import androidx.core.view.children
 import androidx.core.widget.ImageViewCompat
@@ -50,7 +49,6 @@ import xyz.quaver.floatingsearchview.FloatingSearchView
 import xyz.quaver.pupil.*
 import xyz.quaver.pupil.adapters.SearchResultsAdapter
 import xyz.quaver.pupil.databinding.MainActivityBinding
-import xyz.quaver.pupil.sources.ItemInfo
 import xyz.quaver.pupil.types.*
 import xyz.quaver.pupil.ui.dialog.DownloadLocationDialogFragment
 import xyz.quaver.pupil.ui.dialog.GalleryDialogFragment
@@ -69,9 +67,6 @@ class MainActivity :
 {
     override val di by di()
 
-    private val searchResults = mutableListOf<ItemInfo>()
-    private var queryStack = mutableListOf<String>()
-
     private lateinit var binding: MainActivityBinding
     private val model: MainViewModel by viewModels()
 
@@ -176,6 +171,9 @@ class MainActivity :
 
     @OptIn(ExperimentalStdlibApi::class)
     override fun onBackPressed() {
+
+        // TODO model.onBackPressed()
+        /*
         when {
             binding.drawer.isDrawerOpen(GravityCompat.START) -> binding.drawer.closeDrawer(GravityCompat.START)
             queryStack.removeLastOrNull() != null && queryStack.isNotEmpty() -> runOnUiThread {
@@ -185,6 +183,7 @@ class MainActivity :
             }
             else -> super.onBackPressed()
         }
+         */
     }
 
     override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
@@ -273,7 +272,7 @@ class MainActivity :
 
                 model.random { runOnUiThread {
                     setImageResource(R.drawable.shuffle_variant)
-                    GalleryDialogFragment(model.sourceName.value!!, it.id).apply {
+                    GalleryDialogFragment(model.source.value!!.name, it.id).apply {
                         onChipClickedHandler.add {
                             model.setQueryAndSearch(it.toQuery())
                             dismiss()
@@ -297,7 +296,7 @@ class MainActivity :
                     setPositiveButton(android.R.string.ok) { _, _ ->
                         val galleryID = editText.text.toString()
 
-                        GalleryDialogFragment(model.sourceName.value!!, galleryID).apply {
+                        GalleryDialogFragment(model.source.value!!.name, galleryID).apply {
                             onChipClickedHandler.add {
                                 model.setQueryAndSearch(it.toQuery())
                                 dismiss()
@@ -363,8 +362,8 @@ class MainActivity :
                         return@listener
 
                     val intent = Intent(this@MainActivity, ReaderActivity::class.java).apply {
-                        putExtra("source", model.sourceName.value!!)
-                        putExtra("id", searchResults[position].id)
+                        putExtra("source", model.source.value!!.name)
+                        putExtra("id", model.searchResults.value!![position].id)
                     }
 
                     //TODO: Maybe sprinkling some transitions will be nice :D
@@ -375,9 +374,9 @@ class MainActivity :
                     if (v !is ProgressCardView)
                         return@listener false
 
-                    val result = searchResults.getOrNull(position) ?: return@listener true
+                    val result = model.searchResults.value!!.getOrNull(position) ?: return@listener true
 
-                    GalleryDialogFragment(model.sourceName.value!!, result.id).apply {
+                    GalleryDialogFragment(model.source.value!!.name, result.id).apply {
                         onChipClickedHandler.add {
                             model.setQueryAndSearch(it.toQuery())
                             dismiss()

app/src/main/java/xyz/quaver/pupil/ui/viewmodel/MainViewModel.kt

@@ -18,8 +18,10 @@
 
 package xyz.quaver.pupil.ui.viewmodel
 
+import android.annotation.SuppressLint
 import android.app.Application
 import androidx.lifecycle.*
+import com.orhanobut.logger.Logger
 import kotlinx.coroutines.*
 import org.kodein.di.DIAware
 import org.kodein.di.android.x.di
@@ -62,10 +64,6 @@ class MainViewModel(app: Application) : AndroidViewModel(app), DIAware {
         it.iconResID
     }
 
-    val sourceName = Transformations.map(_source) {
-        it.name
-    }
-
     private val _currentPage = MutableLiveData<Int>()
     val currentPage: LiveData<Int> = _currentPage
 
@@ -89,6 +87,8 @@ class MainViewModel(app: Application) : AndroidViewModel(app), DIAware {
             sortMode.value = it.availableSortMode.first()
         }
 
+        Logger.i("SOURCE SET TO $sourceName")
+
         setQueryAndSearch()
     }
 
@@ -163,11 +163,12 @@ class MainViewModel(app: Application) : AndroidViewModel(app), DIAware {
         _suggestions.value = mutableListOf()
 
         suggestionJob = viewModelScope.launch {
+            @SuppressLint("NullSafeMutableLiveData")
             _suggestions.value = withContext(Dispatchers.IO) {
                 kotlin.runCatching {
                     _source.value!!.suggestion(query.value!!)
                 }.getOrElse { emptyList() }
-            }!!
+            }
         }
     }