Started work on SettingsViewModel with discrete SettingsRepository; switched out some icons for the substitution plan

app/src/main/java/com/denizd/substitutionplan/data/SubstUtil.kt

@@ -21,8 +21,6 @@ import androidx.core.content.ContextCompat.checkSelfPermission
 import androidx.fragment.app.FragmentActivity
 import com.denizd.substitutionplan.R
 import com.denizd.substitutionplan.models.Colour
-import com.denizd.substitutionplan.models.Food
-import com.denizd.substitutionplan.models.Substitution
 import java.util.*
 import java.io.File
 import java.io.FileOutputStream
@@ -132,6 +130,7 @@ internal object SubstUtil {
         return 0
     }
 
+    // Could be merged with getColourString
     fun getIconForCourse(course: String): Int {
         return with (course.toLowerCase(Locale.ROOT)) {
             when {
@@ -159,7 +158,7 @@ internal object SubstUtil {
                 contains("gll") -> R.drawable.ic_gll
                 contains("wat") -> R.drawable.ic_wat
                 contains("för") -> R.drawable.ic_help
-                contains("wp") || contains("met") -> R.drawable.ic_pencil
+                contains("wp") || contains("met") -> R.drawable.ic_met
                 else -> R.drawable.ic_empty
             }
         }
@@ -416,8 +415,8 @@ internal object SubstUtil {
         }
     }
 
-    fun readPrefsFromXml(prefs: SharedPreferences, context: Context, activity: FragmentActivity) {
+    fun readPrefsFromXml(prefs: SharedPreferences, context: Context): Boolean {
-        if (checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
+        return if (checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
             val localPrefTypes = ArrayList<String>()
             for (i in prefKeys.indices) {
                 localPrefTypes.add(prefTypes[i])
@@ -436,9 +435,10 @@ internal object SubstUtil {
                 prefs.setPrefValue(key, value, localPrefTypes[i])
             }
             Toast.makeText(context, context.getString(R.string.success), Toast.LENGTH_LONG).show()
+            true
         } else {
             Toast.makeText(context, context.getString(R.string.permission_denied), Toast.LENGTH_LONG).show()
-            requestPermissions(activity, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 42)
+            false
         }
     }
 }

app/src/main/java/com/denizd/substitutionplan/database/SettingsRepository.kt

@@ -3,10 +3,15 @@ package com.denizd.substitutionplan.database
 import android.app.Application
 import android.database.Cursor
 import android.media.RingtoneManager
+import androidx.preference.PreferenceManager
+import com.denizd.substitutionplan.data.SubstUtil
 import com.denizd.substitutionplan.models.Ringtone
 
 internal class SettingsRepository(private val application: Application) {
 
+    private val prefs = PreferenceManager.getDefaultSharedPreferences(application)
+    val notificationChannel = SubstUtil.getNotificationChannel(application, prefs)
+
     val ringtones: List<Ringtone> by lazy {
         lateinit var ringtoneCursor: Cursor
         val ringtoneManager = RingtoneManager(application).apply {
@@ -27,5 +32,29 @@ internal class SettingsRepository(private val application: Application) {
         alarms
     }
 
+    fun getInt(key: String, default: Int = 0): Int {
+        return prefs.getInt(key, default)
+    }
+
+    fun setAndApplyInt(key: String, value: Int) {
+        prefs.edit().putInt(key, value).apply()
+    }
+
+    fun getBool(key: String, default: Boolean = false): Boolean {
+        return prefs.getBoolean(key, default)
+    }
+
+    fun setAndApplyBool(key: String, value: Boolean) {
+        prefs.edit().putBoolean(key, value).apply()
+    }
+
+    fun getString(key: String, default: String = ""): String? {
+        return prefs.getString(key, default)
+    }
+
+    fun setAndApplyString(key: String, value: String) {
+        prefs.edit().putString(key, value).apply()
+    }
+
 
 }

app/src/main/java/com/denizd/substitutionplan/database/SubstRepository.kt

@@ -156,9 +156,19 @@ internal class SubstRepository(private val application: Application) {
                             return true
                         }
                     } else {
-                        if (coursePreference.contains(course.substring(0, questionMark - 1))
+                        try {
-                            || coursePreference.contains(course.substring(questionMark + 1))) {
+                            /*
-                            return true
+                            These if statements are separated for if, for example, this shows up:
+                            "INF7?"
+                            if they were nested in a single if statement, the function may not be
+                            able to recognise the course and throw an exception instead
+                            */
+                            if (coursePreference.contains(course.substring(0, questionMark - 1))) {
+                                return true
+                            } else if (coursePreference.contains(course.substring(questionMark + 1))) {
+                                return true
+                            }
+                        } catch (e: Exception) {
                         }
                     }
                 }

app/src/main/java/com/denizd/substitutionplan/fragments/SettingsFragment.kt

@@ -4,11 +4,9 @@ import android.annotation.SuppressLint
 import android.content.ActivityNotFoundException
 import android.content.Context
 import android.content.Intent
-import android.content.SharedPreferences
 import android.net.Uri
 import android.os.Build
 import android.os.Bundle
-import androidx.preference.PreferenceManager
 import android.provider.Settings
 import android.text.Editable
 import android.text.TextWatcher
@@ -42,7 +40,6 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
         RingtoneAdapter.OnRingtoneClickListener, ColourPickerAdapter.OnColourClickListener {
 
     private lateinit var mContext: Context
-    private lateinit var prefs: SharedPreferences
     private val customTabsIntent = CustomTabsIntent.Builder().build() as CustomTabsIntent
     private var customiseColoursButtonLongPressed = false
     private var versionCount = 0
@@ -58,7 +55,6 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
     override fun onAttach(context: Context) {
         super.onAttach(context)
         mContext = context
-        prefs = PreferenceManager.getDefaultSharedPreferences(mContext)
     }
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
@@ -108,37 +104,37 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
             switchAutoRefresh.setOnCheckedChangeListener(thisFragment)
 
             // Set checked
-            switchGreeting.isChecked = prefs.getBoolean("greeting", true)
+            switchGreeting.isChecked = viewModel.shouldGreet
-            switchNotifications.isChecked = prefs.getBoolean("notif", false)
+            switchNotifications.isChecked = viewModel.shouldReceiveNotifications
 
-            switchPersonalisedPlan.isChecked = prefs.getBoolean("defaultPersonalised", false)
+            switchPersonalisedPlan.isChecked = viewModel.shouldOpenPersonalisedPlan
-            switchAutoRefresh.isChecked = prefs.getBoolean("autoRefresh", false)
+            switchAutoRefresh.isChecked = viewModel.shouldAutoRefresh
 
             // Set edit text (+ listeners)
-            edittextName.setText(prefs.getString("username", ""))
+            edittextName.setText(viewModel.username)
             edittextName.addTextChangedListener(object : TextWatcher {
                 override fun afterTextChanged(s: Editable) {}
                 override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {}
                 override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
-                    prefs.edit().putString("username", edittextName.text.toString().trim()).apply()
+                    viewModel.username = edittextName.text.toString().trim()
                 }
             })
 
-            edittextGroup.setText(prefs.getString("classes", ""))
+            edittextGroup.setText(viewModel.group)
             edittextGroup.addTextChangedListener(object : TextWatcher {
                 override fun afterTextChanged(s: Editable) {}
                 override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {}
                 override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
-                    prefs.edit().putString("classes", edittextGroup.text.toString()).apply()
+                    viewModel.group = edittextGroup.text.toString()
                 }
             })
 
-            edittextCourses.setText(prefs.getString("courses", ""))
+            edittextCourses.setText(viewModel.courses)
             edittextCourses.addTextChangedListener(object : TextWatcher {
                 override fun afterTextChanged(s: Editable) {}
                 override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {}
                 override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
-                    prefs.edit().putString("courses", edittextCourses.text.toString()).apply()
+                    viewModel.courses = edittextCourses.text.toString()
                 }
             })
 
@@ -154,9 +150,9 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
                     R.layout.dropdown_item
             )
             autocompleteDarkMode.setAdapter(darkModeAdapter)
-            autocompleteDarkMode.setText(autocompleteDarkMode.adapter.getItem(prefs.getInt("themeInt", 0)).toString(), false)
+            autocompleteDarkMode.setText(autocompleteDarkMode.adapter.getItem(viewModel.currentTheme).toString(), false)
             autocompleteDarkMode.setOnItemClickListener { _, _, position, _ ->
-                prefs.edit().putInt("themeInt", position).apply()
+                viewModel.currentTheme = position
                 when (position) {
                     0 -> {
                         AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
@@ -174,14 +170,14 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
                         }
                     }
                 }
-                view.rootView.findViewById<BottomNavigationView>(R.id.bottom_nav).selectedItemId = if (prefs.getBoolean("defaultPersonalised", false)) {
+                view.rootView.findViewById<BottomNavigationView>(R.id.bottom_nav).selectedItemId = if (viewModel.shouldOpenPersonalisedPlan) {
                     R.id.personal
                 } else {
                     R.id.plan
                 }
             }
 
-            val selectedOrderingOption = if (prefs.getBoolean("app_specific_sorting", true)) 0 else 1
+            val selectedOrderingOption = if (viewModel.shouldUseAppSorting) 0 else 1
             val orderingArrayAdapter = ArrayAdapter.createFromResource(
                     mContext,
                     R.array.ordering_systems,
@@ -190,7 +186,7 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
             autocompleteOrder.setAdapter(orderingArrayAdapter)
             autocompleteOrder.setText(autocompleteOrder.adapter.getItem(selectedOrderingOption).toString(), false)
             autocompleteOrder.setOnItemClickListener { _, _, position, _ ->
-                prefs.edit().putBoolean("app_specific_sorting", position == 0).apply()
+                viewModel.shouldUseAppSorting = position == 0
             }
         }
     }
@@ -269,7 +265,8 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
                 true
             }
             R.id.button_forced_refresh -> {
-                prefs.edit().putString("timeNew", "").putString("newFoodTime", "").apply()
+                viewModel.setAndApplyString("timeNew", "")
+                viewModel.setAndApplyString("newFoodTime", "")
                 makeToast(mContext.getString(R.string.force_refresh_cleared_times))
                 true
             }
@@ -281,10 +278,10 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
         if (v?.isPressed == true) {
             when (v.id) {
                 R.id.switch_greeting -> {
-                    prefs.edit().putBoolean("greeting", isChecked).apply()
+                    viewModel.shouldGreet = isChecked
                 }
                 R.id.switch_notifications -> {
-                    prefs.edit().putBoolean("notif", isChecked).apply()
+                    viewModel.shouldReceiveNotifications = isChecked
                     if (isChecked) {
                         subscribeToTopic(SubstUtil.FB_TOPIC_ANDROID)
                     } else {
@@ -292,10 +289,10 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
                     }
                 }
                 R.id.switch_personalised_plan -> {
-                    prefs.edit().putBoolean("defaultPersonalised", isChecked).apply()
+                    viewModel.shouldOpenPersonalisedPlan = isChecked
                 }
                 R.id.switch_auto_refresh -> {
-                    prefs.edit().putBoolean("autoRefresh", isChecked).apply()
+                    viewModel.shouldAutoRefresh = isChecked
                 }
             }
         }
@@ -320,7 +317,7 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
     }
 
     override fun onColourClick(position: Int, colourNoLang: String) {
-        prefs.edit().putString("card$currentCourseSelectedInColourPicker", colourNoLang).apply()
+        viewModel.setAndApplyString("card$currentCourseSelectedInColourPicker", colourNoLang)
         val recyclerViewState = colourRecycler.layoutManager?.onSaveInstanceState()
         colourRecycler.adapter = CourseColourAdapter(getColourList(), this)
         colourRecycler.layoutManager?.onRestoreInstanceState(recyclerViewState)
@@ -328,10 +325,8 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
     }
 
     override fun onRingtoneClick(position: Int, name: String, uri: String) {
-        prefs.edit().apply {
+        viewModel.setAndApplyString("ringtoneName", name)
-            putString("ringtoneName", name)
+        viewModel.setAndApplyString("ringtoneUri", uri)
-            putString("ringtoneUri", uri)
-        }.apply()
         setRingtoneText()
         ringtoneDialog.dismiss()
     }
@@ -364,7 +359,7 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
 
     private fun createRingtoneDialog() {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            SubstUtil.getNotificationChannel(mContext, prefs)
+            viewModel.notificationChannel
             val intent = Intent(Settings.ACTION_CHANNEL_NOTIFICATION_SETTINGS).apply {
                 putExtra(Settings.EXTRA_APP_PACKAGE, mContext.applicationContext.packageName)
                 putExtra(Settings.EXTRA_CHANNEL_ID, "general")
@@ -418,12 +413,12 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
                         devDialogText.text = getDiagnosticsText()
 
                         resetLaunchBtn.setOnClickListener {
-                            prefs.edit().putInt("launchDev", 0).apply()
+                            viewModel.setAndApplyInt("launchDev", 0)
                             devDialogText.text = getDiagnosticsText()
                         }
 
                         resetNotificationBtn.setOnClickListener {
-                            prefs.edit().putInt("pingFB", 0).apply()
+                            viewModel.setAndApplyInt("pingFB", 0)
                             devDialogText.text = getDiagnosticsText()
                         }
 
@@ -431,55 +426,65 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
                         alertDialogDev.show()
                     }
                     this == "_login" -> {
-                        prefs.edit().putBoolean("successful_login", false).apply()
+                        viewModel.setAndApplyBool("successful_login", false)
                         makeToast("Login flag cleared")
                     }
                     this == "_firsttime" -> {
-                        prefs.edit().putBoolean("firstTime", true).apply()
+                        viewModel.setAndApplyBool("firstTime", true)
                         makeToast("First time flag cleared")
                     }
                     this == "_testurls" -> {
-                        val currentTest = !prefs.getBoolean("testUrls", false)
+                        val currentTest = !viewModel.getBool("testUrls", false)
-                        prefs.edit().putBoolean("testUrls", currentTest)
+                        viewModel.setAndApplyBool("testUrls", currentTest)
-                            .putString("custom_test_url", "").apply()
+                        if (viewModel.getString("custom_test_url") != "") {
-                        makeToast("Cleared custom URL")
+                            viewModel.setAndApplyString("custom_test_url", "")
+                            makeToast("Cleared custom URL")
+                        }
                         makeToast("Test URLs set to $currentTest")
                     }
                     length > 4 && substring(0, 4) == "_url" -> {
-                        prefs.edit().putString("custom_test_url", substring(4, length)).apply()
+                        viewModel.setAndApplyString("custom_test_url", substring(4, length))
                         makeToast("Successfully entered custom URL")
                     }
                     length == 4 && substring(0, 4) == "_url" -> {
-                        prefs.edit().putString("custom_test_url", "").apply()
+                        viewModel.setAndApplyString("custom_test_url", "")
                         makeToast("Cleared custom URL")
                     }
                     this == "_devchannel" -> {
-                        val subbed = if (prefs.getBoolean("subscribedToFBDebugChannel", false)) {
+                        val subscribedToDevelopmentChannel = viewModel.getBool("subscribedToFBDebugChannel")
+                        val subbedText = if (subscribedToDevelopmentChannel) {
                             unsubscribeFromTopic(SubstUtil.FB_TOPIC_DEVELOPMENT)
                             "Unsubscribed from"
                         } else {
                             subscribeToTopic(SubstUtil.FB_TOPIC_DEVELOPMENT)
                             "Subscribed to"
                         }
-                        prefs.edit().putBoolean("subscribedToFBDebugChannel", !prefs.getBoolean("subscribedToFBDebugChannel", false)).apply()
+                        viewModel.setAndApplyBool("subscribedToFBDebugChannel", !subscribedToDevelopmentChannel)
-                        makeToast("$subbed Firebase development channel")
+                        makeToast("$subbedText Firebase development channel")
                     }
                     this == "_ioschannel" -> {
-                        val subbed = if (prefs.getBoolean("subscribedToiOSChannel", false)) {
+                        val subscribedToIosChannel = viewModel.getBool("subscribedToiOSChannel")
+                        val subbed = if (subscribedToIosChannel) {
                             unsubscribeFromTopic(SubstUtil.FB_TOPIC_IOS)
                             "Unsubscribed from"
                         } else {
                             subscribeToTopic(SubstUtil.FB_TOPIC_IOS)
                             "Subscribed to"
                         }
-                        prefs.edit().putBoolean("subscribedToiOSChannel", !prefs.getBoolean("subscribedToiOSChannel", false)).apply()
+                        viewModel.setAndApplyBool("subscribedToiOSChannel", !subscribedToIosChannel)
                         makeToast("$subbed iOS channel")
                     }
                     this == "_viewstacktrace" -> {
-                        createDialog("Debug Stack Trace", prefs.getString("debug_recent_exception", "") ?: "")
+                        createDialog("Debug Stack Trace", viewModel.getString("debug_recent_exception"))
                     }
-                    this == "_write" -> SubstUtil.writePrefsToXml(prefs, mContext, activity!!)
+//                    this == "_write" -> SubstUtil.writePrefsToXml(prefs, mContext, requireActivity())
-                    this == "_read" -> SubstUtil.readPrefsFromXml(prefs, mContext, activity!!)
+//                    this == "_read" -> {
+//                        if (!SubstUtil.readPrefsFromXml(prefs, mContext)) {
+//                            ActivityCompat.requestPermissions(requireActivity(), arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 42)
+//                        } else {
+//                            TODO("Figure this out or remove it outright as it is outdated")
+//                        }
+//                    }
                     else -> makeToast(getString(R.string.invalid_code))
                 }
             }
@@ -545,7 +550,7 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
                 R.drawable.ic_gll,
                 R.drawable.ic_wat,
                 R.drawable.ic_help,
-                R.drawable.ic_pencil
+                R.drawable.ic_met
         )
 
         for (i in coursesNoLang.indices) {
@@ -554,7 +559,7 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
                     courses[i],
                     coursesNoLang[i],
                     coursesIcons[i],
-                    SubstUtil.getColourForString(prefs.getString("card${coursesNoLang[i]}", "") ?: "", mContext)
+                    SubstUtil.getColourForString(viewModel.getString("card${coursesNoLang[i]}", ""), mContext)
                 )
             )
         }
@@ -566,8 +571,8 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
         binding.textCustomiseRingtoneDesc.text = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             mContext.getString(R.string.pick_ringtone_desc_o)
         } else {
-            val tone = if ((prefs.getString("ringtoneName", "") ?: "").isNotEmpty()) {
+            val tone = if ((viewModel.getString("ringtoneName")).isNotEmpty()) {
-                prefs.getString("ringtoneName", "")
+                viewModel.getString("ringtoneName")
             } else {
                 mContext.getString(R.string.default_ringtone)
             }
@@ -580,15 +585,15 @@ internal class SettingsFragment : Fragment(), View.OnClickListener, View.OnLongC
     }
 
     private fun getDiagnosticsText(): String {
-        return "First Launch: ${prefs.getString("firstTimeDev", "")}" +
+        return "First Launch: ${viewModel.getString("firstTimeDev", "")}" +
-                "\n\nApp launched: ${prefs.getInt("launchDev", 0)}" +
+                "\n\nApp launched: ${viewModel.getInt("launchDev", 0)}" +
-                "\n\nFirebase ping service fired: ${prefs.getInt("pingFB", 0)}" +
+                "\n\nFirebase ping service fired: ${viewModel.getInt("pingFB", 0)}" +
                 "\n\nDevice Name: ${Build.DEVICE}" +
                 "\n\nDevice Model: ${Build.MODEL}" +
                 "\n\nAndroid Version: ${Build.VERSION.RELEASE}" +
-                "\n\nSubscribed to notification channel: ${prefs.getBoolean("notif", false)}" +
+                "\n\nSubscribed to notification channel: ${viewModel.getBool("notif", false)}" +
-                "\n\nSubscribed to iOS channel: ${prefs.getBoolean("subscribedToiOSChannel", false)}" +
+                "\n\nSubscribed to iOS channel: ${viewModel.getBool("subscribedToiOSChannel", false)}" +
-                "\n\nSubscribed to dev channel: ${prefs.getBoolean("subscribedToFBDebugChannel", false)}"
+                "\n\nSubscribed to dev channel: ${viewModel.getBool("subscribedToFBDebugChannel", false)}"
     }
 
     private fun subscribeToTopic(topic: String) = FirebaseMessaging.getInstance().subscribeToTopic(topic)

app/src/main/java/com/denizd/substitutionplan/viewmodels/SettingsViewModel.kt

@@ -2,6 +2,7 @@ package com.denizd.substitutionplan.viewmodels
 
 import android.app.Application
 import androidx.lifecycle.AndroidViewModel
+import com.denizd.substitutionplan.data.SubstUtil
 import com.denizd.substitutionplan.database.SettingsRepository
 import com.denizd.substitutionplan.models.Ringtone
 import kotlinx.coroutines.GlobalScope
@@ -11,6 +12,38 @@ import kotlinx.coroutines.launch
 internal class SettingsViewModel(application: Application) : AndroidViewModel(application) {
 
     private val repo = SettingsRepository(application)
+    var shouldGreet: Boolean
+        get() = repo.getBool("greeting")
+        set(it) = repo.setAndApplyBool("greeting", it)
+    var shouldReceiveNotifications: Boolean
+        get() = repo.getBool("notif")
+        set(it) = repo.setAndApplyBool("notif", it)
+    var shouldOpenPersonalisedPlan: Boolean
+        get() = repo.getBool("defaultPersonalised")
+        set(it) = repo.setAndApplyBool("defaultPersonalised", it)
+    var shouldAutoRefresh: Boolean
+        get() = repo.getBool("autoRefresh")
+        set(it) = repo.setAndApplyBool("autoRefresh", it)
+    var shouldUseAppSorting: Boolean
+        get() = repo.getBool("app_specific_sorting")
+        set(it) = repo.setAndApplyBool("app_specific_sorting", it)
+
+
+    var username: String
+        get() = repo.getString("username") ?: ""
+        set(it) = repo.setAndApplyString("username", it)
+    var group: String
+        get() = repo.getString("classes") ?: ""
+        set(it) = repo.setAndApplyString("classes", it)
+    var courses: String
+        get() = repo.getString("courses") ?: ""
+        set(it) = repo.setAndApplyString("courses", it)
+
+    var currentTheme: Int
+        get() = repo.getInt("themeInt")
+        set(it) = repo.setAndApplyInt("themeInt", it)
+
+    val notificationChannel = repo.notificationChannel
 
     lateinit var ringtones: List<Ringtone>
     val ringtonesInitialised = ::ringtones.isInitialized
@@ -22,4 +55,11 @@ internal class SettingsViewModel(application: Application) : AndroidViewModel(ap
             updateUi()
         }
     }
+
+    fun getInt(key: String, default: Int = 0) = repo.getInt(key, default)
+    fun setAndApplyInt(key: String, value: Int) = repo.setAndApplyInt(key, value)
+    fun getBool(key: String, default: Boolean = false) = repo.getBool(key, default)
+    fun setAndApplyBool(key: String, value: Boolean) = repo.setAndApplyBool(key, value)
+    fun getString(key: String, default: String = "", ifNull: String = "") = repo.getString(key, default) ?: ifNull
+    fun setAndApplyString(key: String, value: String) = repo.setAndApplyString(key, value)
 }

app/src/main/res/drawable/ic_compsci.xml

@@ -1,7 +1,24 @@
-<vector android:height="24dp" android:viewportHeight="384"
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:viewportWidth="384" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    android:width="24dp"
-    <path android:fillColor="#FF000000" android:pathData="m8,144.785c0,92.488 39.098,239.215 144,239.215 46.047,0 79.406,-28.281 102.359,-67.824 13,10.391 28.914,16.313 45.641,16.313 41.902,0 76,-36.063 76,-80.391s-34.098,-80.395 -76,-80.395c-1.695,0 -3.367,0.145 -5.047,0.266 0.703,-9.426 1.047,-18.543 1.047,-27.184 0,-8.832 -7.168,-16 -16,-16h-256c-8.832,0 -16,7.16 -16,16zM300,203.703c24.266,0 44,21.703 44,48.395 0,26.688 -19.734,48.391 -44,48.391 -11.711,0 -22.824,-5.273 -31.016,-14.289 10.641,-25.824 17.871,-54.102 22.145,-81.465 2.918,-0.656 5.879,-1.031 8.871,-1.031zM263.617,160.785c-0.449,9.453 -1.305,19.191 -2.547,29.031 -0.023,0.152 -0.031,0.305 -0.055,0.457 -3.887,30.637 -11.648,62.207 -23.566,89.254 -0.969,1.418 -1.633,2.977 -2.105,4.602 -18.352,39.262 -45.824,67.871 -83.344,67.871 -72.566,0 -107.633,-106.93 -111.617,-191.215zM263.617,160.785"/>
+    android:height="24dp"
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app/src/main/res/drawable/ic_geography.xml

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app/src/main/res/drawable/ic_gll.xml

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app/src/main/res/drawable/ic_latin.xml

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app/src/main/res/drawable/ic_met.xml

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app/src/main/res/drawable/ic_pencil.xml

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app/src/main/res/drawable/ic_physics.xml

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app/src/main/res/drawable/ic_politics.xml

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