Feature/ai translation

app/src/main/java/com/theveloper/pixelplay/presentation/components/LyricsSheet.kt

@@ -245,6 +245,7 @@ fun LyricsSheet(
     isImmersiveTemporarilyDisabled: Boolean,
     onSetImmersiveTemporarilyDisabled: (Boolean) -> Unit,
     onSaveLyricsToFile: (Song, Lyrics, Boolean) -> Unit,
+    onTranslateViaAi: () -> Unit,
     // BottomToggleRow Params
     isShuffleEnabled: Boolean,
     repeatMode: Int,
@@ -1017,6 +1018,7 @@ fun LyricsSheet(
                         wasResetTriggered = true
                         resetLyricsForCurrentSong()
                     },
+                    onTranslateViaAi = onTranslateViaAi,
                     onToggleSyncControls = {
                         resetImmersiveTimer()
                         showSyncControls = !showSyncControls

app/src/main/java/com/theveloper/pixelplay/presentation/components/player/FullPlayerContent.kt

@@ -957,6 +957,7 @@ fun FullPlayerContent(
             colorScheme = LocalMaterialTheme.current,
             onBackClick = { showLyricsSheet = false },
             onSaveLyricsToFile = playerViewModel::saveLyricsToFile,
+            onTranslateViaAi = { playerViewModel.translateLyricsViaAi() },
             onSeekTo = { playerViewModel.seekTo(it) },
             onPlayPause = {
                 playerViewModel.playPause()

app/src/main/java/com/theveloper/pixelplay/presentation/components/subcomps/LyricsMoreBottomSheet.kt

@@ -68,6 +68,7 @@ fun LyricsMoreBottomSheet(
     isSyncControlsVisible: Boolean,
     onSaveLyricsAsLrc: () -> Unit,
     onResetImportedLyrics: () -> Unit,
+    onTranslateViaAi: () -> Unit,
     onToggleSyncControls: () -> Unit,
     isImmersiveTemporarilyDisabled: Boolean,
     onSetImmersiveTemporarilyDisabled: (Boolean) -> Unit,
@@ -157,6 +158,32 @@ fun LyricsMoreBottomSheet(
                     )
                 }
 
+                // Translate via AI
+                if (lyrics != null) {
+                    ListItem(
+                        headlineContent = { Text(stringResource(R.string.ai_translate_via_ai)) },
+                        leadingContent = {
+                            Icon(
+                                imageVector = Icons.Rounded.Translate,
+                                contentDescription = null
+                            )
+                        },
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .clip(RoundedCornerShape(8.dp))
+                            .background(itemBackgroundColor)
+                            .clickable {
+                                onDismissRequest()
+                                onTranslateViaAi()
+                            },
+                        colors = ListItemDefaults.colors(
+                            containerColor = Color.Transparent,
+                            headlineColor = contentColor,
+                            leadingIconColor = contentColor
+                        )
+                    )
+                }
+
                 // Reset imported lyrics
                 val resetShape = if (lyrics != null) {
                     RoundedCornerShape(topStart = 8.dp, topEnd = 8.dp, bottomStart = 18.dp, bottomEnd = 18.dp)

app/src/main/java/com/theveloper/pixelplay/presentation/viewmodel/AiStateHolder.kt

@@ -34,7 +34,8 @@ class AiStateHolder @Inject constructor(
     private val dailyMixManager: DailyMixManager,
     private val playlistPreferencesRepository: PlaylistPreferencesRepository,
     private val dailyMixStateHolder: DailyMixStateHolder,
-    private val notificationManager: AiNotificationManager
+    private val notificationManager: AiNotificationManager,
+    private val aiOrchestrator: com.theveloper.pixelplay.data.ai.AiOrchestrator
 ) {
     // State
     // AI State Management: Observables for tracking background generation progress
@@ -339,6 +340,40 @@ class AiStateHolder @Inject constructor(
         }
     }
 
+    suspend fun translateLyrics(lyricsText: String): Result<String> {
+        return try {
+            val targetLanguage = context.resources.configuration.locales[0].displayLanguage
+            val prompt = """
+Translate the provided song lyrics into $targetLanguage.
+
+Keep every timestamp exactly unchanged.
+
+If the lyrics are ALREADY mostly in $targetLanguage, output ONLY the exact phrase "ALREADY_IN_TARGET_LANGUAGE" without any other text.
+
+For each original line, output the original line first, then on the next line output the $targetLanguage translation with the same timestamp.
+
+Do not add any extra text, explanations, numbering, labels, or formatting.
+Do not remove, merge, split, or reorder lines.
+
+Output only:
+[timestamp] original text
+[timestamp] translated text
+
+Lyrics to translate:
+$lyricsText
+            """.trimIndent()
+
+            val response = aiOrchestrator.generateContent(
+                prompt = prompt,
+                type = AiSystemPromptType.GENERAL,
+                temperature = 0.1f
+            )
+            Result.success(response)
+        } catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
+
     fun onCleared() {
         scope = null
         allSongsProvider = null

app/src/main/java/com/theveloper/pixelplay/presentation/viewmodel/PlayerViewModel.kt

@@ -5102,6 +5102,57 @@ class PlayerViewModel @Inject constructor(
         lyricsStateHolder.importLyricsFromFile(songId, validatedImport, currentSong)
     }
 
+    fun translateLyricsViaAi() {
+        val currentSong = stablePlayerState.value.currentSong ?: return
+        val songId = currentSong.id.toLongOrNull() ?: return
+        val rawLyrics = currentSong.lyrics
+        val lyricsObj = stablePlayerState.value.lyrics
+
+        if (rawLyrics.isNullOrBlank()) {
+            sendToast(context.getString(R.string.lyrics_not_found))
+            return
+        }
+
+        if (lyricsObj?.synced != null) {
+            val hasValidTranslation = lyricsObj.synced.any { !it.translation.isNullOrBlank() }
+            if (hasValidTranslation) {
+                sendToast(context.getString(R.string.ai_lyrics_already_translated))
+                return
+            }
+        }
+
+        viewModelScope.launch {
+            sendToast(context.getString(R.string.ai_lyrics_translating))
+            val result = aiStateHolder.translateLyrics(rawLyrics)
+            result.onSuccess { translatedText ->
+                if (translatedText.trim() == "ALREADY_IN_TARGET_LANGUAGE") {
+                    sendToast(context.getString(R.string.ai_lyrics_already_in_target_language))
+                    return@onSuccess
+                }
+
+                if (translatedText.isNotBlank()) {
+                    val validation = com.theveloper.pixelplay.utils.LyricsImportSecurity.validateImportedLrcContent(translatedText)
+                    if (validation is com.theveloper.pixelplay.utils.LyricsImportValidationResult.Valid) {
+                        lyricsStateHolder.importLyricsFromFile(songId, validation.value, currentSong)
+                        sendToast(context.getString(R.string.ai_lyrics_translation_success))
+                    } else {
+                        val reason = (validation as com.theveloper.pixelplay.utils.LyricsImportValidationResult.Invalid).reason
+                        val errorMsg = com.theveloper.pixelplay.utils.LyricsImportSecurity.messageFor(reason)
+                        sendToast(context.getString(R.string.ai_error_generic, errorMsg))
+                    }
+                } else {
+                     sendToast(context.getString(R.string.ai_error_generic, "Empty response"))
+                }
+            }.onFailure {
+                if (it.message?.contains("key", ignoreCase = true) == true || it.message?.contains("config", ignoreCase = true) == true) {
+                    sendToast(context.getString(R.string.ai_error_api_key))
+                } else {
+                    sendToast(context.getString(R.string.ai_error_generic, it.message))
+                }
+            }
+        }
+    }
+
     /**
      * Resetea el estado de la búsqueda de letras a Idle.
      */

app/src/main/res/values-ru/strings.xml

@@ -93,6 +93,13 @@
     <string name="ai_daily_mix_updated">Daily Mix обновлен с помощью ИИ</string>
     <string name="ai_no_songs_for_mix">ИИ не удалось найти песни для этого микса</string>
 
+    <string name="ai_translate_via_ai">Перевести с ИИ</string>
+    <string name="ai_lyrics_already_translated">У этого текста уже есть перевод</string>
+    <string name="ai_lyrics_already_in_target_language">Этот текст уже на этом языке</string>
+    <string name="ai_lyrics_api_not_configured">API не настроен</string>
+    <string name="ai_lyrics_translation_success">Текст успешно переведён!</string>
+    <string name="ai_lyrics_translating">Перевод текста...</string>
+
     <string name="shortcut_shuffle_short">Перемешать</string>
     <string name="shortcut_shuffle_long">Перемешать все песни</string>
     <string name="shortcut_playlist_short">Плейлист</string>

app/src/main/res/values-ru/strings_presentation_batch_g.xml

@@ -287,8 +287,8 @@
     <string name="presentation_batch_g_presets_cd_pin">Закрепить</string>
     <string name="presentation_batch_g_presets_cd_rename">Переименовать</string>
     <string name="presentation_batch_g_presets_cd_delete">Удалить</string>
-    <string name="presentation_batch_g_beta_sheet_version">Бета 0.6.0</string>
-    <string name="presentation_batch_g_beta_sheet_welcome_title">Добро пожаловать в PixelPlayer 0.6.0-beta</string>
+    <string name="presentation_batch_g_beta_sheet_version">Бета 0.7.0</string>
+    <string name="presentation_batch_g_beta_sheet_welcome_title">Добро пожаловать в PixelPlayer 0.7.0-beta</string>
     <string name="presentation_batch_g_beta_sheet_welcome_body">Эта бета сфокусирована на стабильности, скорости и кросс-девайс воспроизведении.</string>
     <string name="presentation_batch_g_beta_sheet_expect_title">Что нового</string>
     <string name="presentation_batch_g_beta_sheet_expect_1">Быстрая работа: плавный запуск, навигация и работа плеера.</string>
@@ -495,4 +495,4 @@
     <string name="presentation_batch_g_beta_sheet_nightly_access">Доступны через артефакты GitHub Actions в репозитории, если опубликованы.</string>
     <string name="presentation_batch_g_beta_sheet_nightly_report_title">Отчёт о проблемах в nightly</string>
     <string name="presentation_batch_g_beta_sheet_nightly_report_body">При отчёте о проблеме из nightly всегда указывайте, что она в nightly, а не в официальном релизе. Укажите дату сборки, имя или номер запуска workflow или commit SHA — если возможно. Также проверьте, есть ли эта проблема в последнем официальном релизе.</string>
-</resources>
+</resources>

app/src/main/res/values/strings.xml

@@ -92,6 +92,13 @@
     <string name="ai_daily_mix_updated">Daily Mix updated with AI</string>
     <string name="ai_no_songs_for_mix">AI couldn\'t find songs for this mix</string>
 
+    <string name="ai_translate_via_ai">Translate via AI</string>
+    <string name="ai_lyrics_already_translated">These lyrics already have a translation</string>
+    <string name="ai_lyrics_already_in_target_language">These lyrics are already in this language</string>
+    <string name="ai_lyrics_api_not_configured">API is not configured</string>
+    <string name="ai_lyrics_translation_success">Lyrics translated successfully!</string>
+    <string name="ai_lyrics_translating">Translating lyrics...</string>
+
     <string name="shortcut_shuffle_short">Shuffle</string>
     <string name="shortcut_shuffle_long">Shuffle all songs</string>
     <string name="shortcut_playlist_short">Playlist</string>