rewrite the app in native kotlin with compose

2026-10-24 18:12:27 +00:00 · 2024-01-19 20:47:36 +02:00
parent a40cf85925
commit 0069f62115
92 changed files with 3391 additions and 2008 deletions
@@ -0,0 +1,78 @@
+package com.illusionman1212.lyricsgrabbr.viewmodels
+
+import android.net.Uri
+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.LyricsRepository
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+data class LyricsState(
+    // set by Home screen
+    val song: String = "",
+    val artist: String = "",
+    val url: Uri = Uri.EMPTY,
+    val trackId: String = "",
+    val useSpotifyApi: Boolean = false,
+
+    // set by Lyrics screen
+    val lyrics: String = "",
+    val isLoading: Boolean = true,
+
+    val error: String? = null,
+)
+
+class LyricsViewModel(private val lyricsRepository: LyricsRepository): ViewModel() {
+    private val _uiState = MutableStateFlow(LyricsState())
+    val uiState = _uiState.asStateFlow()
+
+    fun onSongChange(trackId: String, title: String, subtitle: String, url: Uri, useSpotifyApi: Boolean) {
+        _uiState.update {
+            it.copy(song = title, artist = subtitle, url = url, useSpotifyApi = useSpotifyApi, trackId = trackId)
+        }
+    }
+
+    fun fetchLyricsFromSpotify() {
+        _uiState.value = _uiState.value.copy(isLoading = true, lyrics = "")
+
+        viewModelScope.launch {
+            withContext(Dispatchers.IO) {
+                val (lyrics, isSuccess) = lyricsRepository.fetchLyricsFromSpotify(uiState.value.trackId)
+                if (isSuccess) {
+                    _uiState.value = _uiState.value.copy(isLoading = false, lyrics = lyrics)
+                } else {
+                    _uiState.value = _uiState.value.copy(isLoading = false, error = lyrics, lyrics = "")
+                }
+            }
+        }
+    }
+
+    fun fetchLyricsFromGenius() {
+        _uiState.value = _uiState.value.copy(isLoading = true, lyrics = "")
+
+        viewModelScope.launch {
+            withContext(Dispatchers.IO) {
+                val lyrics = lyricsRepository.fetchLyricsFromGenius(uiState.value.url)
+                _uiState.value = _uiState.value.copy(isLoading = false, lyrics = lyrics)
+            }
+        }
+    }
+
+    companion object {
+        val Factory: ViewModelProvider.Factory = viewModelFactory {
+            initializer {
+                val application = (this[APPLICATION_KEY] as LGApp)
+                LyricsViewModel(application.lyricsRepository)
+            }
+        }
+    }
+}