rewrite the app in native kotlin with compose

app/src/main/java/com/illusionman1212/lyricsgrabbr/viewmodels/SettingsViewModel.kt

@@ -0,0 +1,60 @@
+package com.illusionman1212.lyricsgrabbr.viewmodels
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.ViewModelProvider.AndroidViewModelFactory.Companion.APPLICATION_KEY
+import androidx.lifecycle.viewModelScope
+import androidx.lifecycle.viewmodel.initializer
+import androidx.lifecycle.viewmodel.viewModelFactory
+import com.illusionman1212.lyricsgrabbr.LGApp
+import com.illusionman1212.lyricsgrabbr.data.SettingsPreferencesRepository
+import com.illusionman1212.lyricsgrabbr.data.Theme
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+
+data class SettingsState(
+    val appTheme: Int = Theme.SYSTEM.ordinal,
+    val isSpotifyAuthed: Boolean = false,
+)
+
+class SettingsViewModel(private val settingsPrefsRepo: SettingsPreferencesRepository): ViewModel() {
+    private val _uiState = MutableStateFlow(SettingsState())
+    val uiState = _uiState.asStateFlow()
+
+    suspend fun getAppTheme(): Int {
+        return settingsPrefsRepo.preferences.first().appTheme
+    }
+
+    fun setTheme(theme: Theme) {
+        viewModelScope.launch(Dispatchers.IO) {
+            settingsPrefsRepo.setTheme(theme)
+        }
+    }
+
+    fun updateSpotifyAuthStatus(isAuthed: Boolean) {
+        _uiState.value = _uiState.value.copy(isSpotifyAuthed = isAuthed)
+    }
+
+    init {
+        viewModelScope.launch {
+            settingsPrefsRepo.preferences.collectLatest {
+                _uiState.value = _uiState.value.copy(
+                    appTheme = it.appTheme,
+                )
+            }
+        }
+    }
+
+    companion object {
+        val Factory: ViewModelProvider.Factory = viewModelFactory {
+            initializer {
+                val application = (this[APPLICATION_KEY] as LGApp)
+                SettingsViewModel(application.settingsPreferencesRepository)
+            }
+        }
+    }
+}