Fix strings missing from translations (#959)

## Description
Weblate's Android string parser (aka
https://translate.codeberg.org/projects/wholphin/) doesn't support
direct translations of string arrays.

Many of Wholphin's preference options are defined in string arrays and
therefore could not be translated. So this PR implements the [suggested
workaround](https://docs.weblate.org/en/latest/formats/android.html) to
move the string into individual entries and reference them in arrays.

Also moves some hardcoded strings into `strings.xml` so they can be
translated. Note: virtually all error messages are still hardcoded, but
they are only for exceptional cases, so it's probably not a huge
problem.

A minor bug where the backdrop would show briefly after switching users
is fixed.

### Related issues
Fixes #957

### Testing
Emulator

## Screenshots
N/A

## AI or LLM usage
None

app/src/main/java/com/github/damontecres/wholphin/MainActivity.kt

@@ -123,6 +123,9 @@ class MainActivity : AppCompatActivity() {
     @Inject
     lateinit var suggestionsSchedulerService: SuggestionsSchedulerService
 
+    @Inject
+    lateinit var backdropService: BackdropService
+
     // Note: unused but injected to ensure it is created
     @Inject
     lateinit var serverEventListener: ServerEventListener
@@ -247,6 +250,9 @@ class MainActivity : AppCompatActivity() {
                                             }
 
                                             is SetupDestination.AppContent -> {
+                                                LaunchedEffect(Unit) {
+                                                    backdropService.clearBackdrop()
+                                                }
                                                 val current = key.current
                                                 ProvideLocalClock {
                                                     if (UpdateChecker.ACTIVE && appPreferences.autoCheckForUpdates) {

app/src/main/java/com/github/damontecres/wholphin/ui/Formatting.kt

@@ -5,6 +5,7 @@ import androidx.compose.foundation.text.appendInlineContent
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.buildAnnotatedString
 import com.github.damontecres.wholphin.R
+import com.github.damontecres.wholphin.WholphinApplication
 import org.jellyfin.sdk.model.api.BaseItemDto
 import org.jellyfin.sdk.model.api.MediaSegmentType
 import timber.log.Timber
@@ -76,7 +77,7 @@ val BaseItemDto.seriesProductionYears: String?
                 append(productionYear.toString())
                 if (status == "Continuing") {
                     append(" - ")
-                    append("Present")
+                    append(WholphinApplication.instance.getString(R.string.series_continueing))
                 } else if (status == "Ended") {
                     endDate?.let {
                         if (it.year != productionYear) {

app/src/main/java/com/github/damontecres/wholphin/ui/components/CollectionFolderGrid.kt

@@ -857,7 +857,7 @@ fun CollectionFolderGridContent(
                 DataLoadingState.Loading,
                 -> {
                     // This shouldn't happen, so just show placeholder
-                    Text("Loading")
+                    Text(stringResource(R.string.loading))
                 }
 
                 is DataLoadingState.Error -> {

app/src/main/java/com/github/damontecres/wholphin/ui/playback/DownloadSubtitlesDialog.kt

@@ -102,7 +102,7 @@ fun DownloadSubtitlesContent(
                         .padding(PaddingValues(24.dp)),
             ) {
                 Text(
-                    text = "Search & download subtitles",
+                    text = stringResource(R.string.search_and_download_subtitles),
                     style = MaterialTheme.typography.titleLarge,
                     color = MaterialTheme.colorScheme.onSurface,
                 )
@@ -113,7 +113,7 @@ fun DownloadSubtitlesContent(
                     verticalAlignment = Alignment.CenterVertically,
                 ) {
                     Text(
-                        text = "Language",
+                        text = stringResource(R.string.language),
                         style = MaterialTheme.typography.titleSmall,
                         color = MaterialTheme.colorScheme.onSurface,
                     )
@@ -137,7 +137,7 @@ fun DownloadSubtitlesContent(
                 }
                 if (dialogItems.isEmpty()) {
                     Text(
-                        text = "No remote subtitles were found",
+                        text = stringResource(R.string.no_subtitles_found),
                         style = MaterialTheme.typography.titleLarge,
                         color = MaterialTheme.colorScheme.onSurface,
                     )

app/src/main/java/com/github/damontecres/wholphin/ui/playback/PlaybackConstants.kt

@@ -1,6 +1,7 @@
 package com.github.damontecres.wholphin.ui.playback
 
 import androidx.compose.ui.layout.ContentScale
+import com.github.damontecres.wholphin.R
 import com.github.damontecres.wholphin.preferences.PrefContentScale
 import org.jellyfin.sdk.model.api.BaseItemKind
 import org.jellyfin.sdk.model.api.CollectionType
@@ -9,13 +10,13 @@ val playbackSpeedOptions = listOf(".25", ".5", ".75", "1.0", "1.25", "1.5", "1.7
 
 val playbackScaleOptions =
     mapOf(
-        ContentScale.Fit to "Fit",
-        ContentScale.None to "None",
-        ContentScale.Crop to "Crop",
+        ContentScale.Fit to R.string.content_scale_fit,
+        ContentScale.None to R.string.none,
+        ContentScale.Crop to R.string.content_scale_crop,
 //        ContentScale.Inside to "Inside",
-        ContentScale.FillBounds to "Fill",
-        ContentScale.FillWidth to "Fill Width",
-        ContentScale.FillHeight to "Fill Height",
+        ContentScale.FillBounds to R.string.content_scale_fill,
+        ContentScale.FillWidth to R.string.content_scale_fill_width,
+        ContentScale.FillHeight to R.string.content_scale_fill_height,
     )
 
 val PrefContentScale.scale: ContentScale

app/src/main/java/com/github/damontecres/wholphin/ui/playback/PlaybackDialog.kt

@@ -144,7 +144,9 @@ fun PlaybackDialog(
                             BottomDialogItem(
                                 data = PlaybackDialogType.VIDEO_SCALE,
                                 headline = stringResource(R.string.video_scale),
-                                supporting = playbackScaleOptions[settings.contentScale],
+                                supporting =
+                                    playbackScaleOptions[settings.contentScale]
+                                        ?.let { stringResource(it) },
                             ),
                         )
                     }
@@ -220,7 +222,7 @@ fun PlaybackDialog(
                 playbackScaleOptions.map { (scale, name) ->
                     BottomDialogItem(
                         data = scale,
-                        headline = name,
+                        headline = stringResource(name),
                         supporting = null,
                     )
                 }

app/src/main/java/com/github/damontecres/wholphin/ui/setup/seerr/AddSeerrServer.kt

@@ -62,7 +62,7 @@ fun AddSeerrServerApiKey(
         val passwordFocusRequester = remember { FocusRequester() }
         LaunchedEffect(Unit) { focusRequester.tryRequestFocus() }
         Text(
-            text = "Enter URL & API Key",
+            text = stringResource(R.string.enter_url_api_key),
             style = MaterialTheme.typography.titleMedium,
             color = MaterialTheme.colorScheme.onSurface,
             textAlign = TextAlign.Center,
@@ -73,7 +73,7 @@ fun AddSeerrServerApiKey(
             modifier = Modifier.align(Alignment.CenterHorizontally),
         ) {
             Text(
-                text = "URL",
+                text = stringResource(R.string.url),
                 modifier = Modifier.padding(end = 8.dp),
             )
             EditTextBox(
@@ -104,7 +104,7 @@ fun AddSeerrServerApiKey(
             modifier = Modifier.align(Alignment.CenterHorizontally),
         ) {
             Text(
-                text = "API Key",
+                text = stringResource(R.string.api_key),
                 modifier = Modifier.padding(end = 8.dp),
             )
             EditTextBox(

app/src/main/java/com/github/damontecres/wholphin/ui/setup/seerr/AddSeerrServerDialog.kt

@@ -6,6 +6,8 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.res.stringResource
+import com.github.damontecres.wholphin.R
 import com.github.damontecres.wholphin.data.model.SeerrAuthMethod
 import com.github.damontecres.wholphin.ui.components.BasicDialog
 import com.github.damontecres.wholphin.ui.components.DialogItem
@@ -71,27 +73,26 @@ fun ChooseSeerrLoginType(
     onChoose: (SeerrAuthMethod) -> Unit,
 ) {
     val params =
-        remember {
         DialogParams(
             fromLongClick = false,
-                title = "Login to Seerr server",
+            title = stringResource(R.string.seerr_login),
             items =
                 listOf(
                     DialogItem(
-                            text = "API Key",
+                        text = stringResource(R.string.api_key),
                         onClick = { onChoose.invoke(SeerrAuthMethod.API_KEY) },
                     ),
                     DialogItem(
-                            text = "Jellyfin user",
+                        text = stringResource(R.string.seerr_jellyfin_user),
                         onClick = { onChoose.invoke(SeerrAuthMethod.JELLYFIN) },
                     ),
                     DialogItem(
-                            text = "Local user",
+                        text = stringResource(R.string.seerr_local_user),
                         onClick = { onChoose.invoke(SeerrAuthMethod.LOCAL) },
                     ),
                 ),
         )
-        }
+
     DialogPopup(
         params = params,
         onDismissRequest = onDismissRequest,

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

@@ -522,109 +522,161 @@
     <string name="display_presets">Display presets</string>
     <string name="display_presets_description">Built-in presets to quickly style all rows</string>
     <string name="customize_home_summary">Choose rows and images on the home page</string>
+    <string name="content_scale_fit">Fit</string>
+    <string name="content_scale_crop">Crop</string>
+    <string name="content_scale_fill">Fill</string>
+    <string name="content_scale_fill_width">Fill width</string>
+    <string name="content_scale_fill_height">Fill height</string>
     <string name="display_preset_default">Wholphin Default</string>
     <string name="display_preset_compact">Wholphin Compact</string>
     <string name="display_preset_series_thumb">Series Thumb images</string>
     <string name="display_preset_episode_thumbnails">Episode Thumbnail images</string>
 
+    <string name="volume_lowest">Lowest</string>
+    <string name="volume_low">Low</string>
+    <string name="volume_medium">Medium</string>
+    <string name="volume_high">High</string>
+    <string name="volume_full">Full</string>
     <string-array name="theme_song_volume">
-        <item>Disabled</item>
-        <item>Lowest</item>
-        <item>Low</item>
-        <item>Medium</item>
-        <item>High</item>
-        <item>Full</item>
+        <item>@string/disabled</item>
+        <item>@string/volume_lowest</item>
+        <item>@string/volume_low</item>
+        <item>@string/volume_medium</item>
+        <item>@string/volume_high</item>
+        <item>@string/volume_full</item>
     </string-array>
 
+    <string name="purple">Purple</string>
+    <string name="orange">Orange</string>
+    <string name="bold_blue">Bold Blue</string>
+    <string name="black">Black</string>
     <string-array name="app_theme_colors">
-        <item>Purple</item>
-        <item>Blue</item>
-        <item>Green</item>
-        <item>Orange</item>
-        <item>Bold Blue</item>
-        <item>Black</item>
+        <item>@string/purple</item>
+        <item>@string/blue</item>
+        <item>@string/green</item>
+        <item>@string/orange</item>
+        <item>@string/bold_blue</item>
+        <item>@string/black</item>
     </string-array>
 
+    <string name="skip_ignore">Ignore</string>
+    <string name="skip_automatically">Skip automatically</string>
+    <string name="skip_ask">Ask to skip</string>
     <string-array name="skip_behaviors">
-        <item>Ignore</item>
-        <item>Skip automatically</item>
-        <item>Ask to skip</item>
+        <item>@string/skip_ignore</item>
+        <item>@string/skip_automatically</item>
+        <item>@string/skip_ask</item>
     </string-array>
 
     <string-array name="content_scale">
-        <item>Fit</item>
-        <item>None</item>
-        <item>Crop</item>
-        <item>Fill</item>
-        <item>Fill Width</item>
-        <item>Fill Height</item>
+        <item>@string/content_scale_fit</item>
+        <item>@string/none</item>
+        <item>@string/content_scale_crop</item>
+        <item>@string/content_scale_fill</item>
+        <item>@string/content_scale_fill_width</item>
+        <item>@string/content_scale_fill_height</item>
     </string-array>
 
+    <string name="ffmpeg_fallback">Only use FFmpeg if no built-in decoder exists</string>
+    <string name="ffmpeg_prefer">Prefer to use FFmpeg over built-in decoders</string>
+    <string name="ffmpeg_never">Never use FFmpeg decoders</string>
     <string-array name="ffmpeg_extension_options">
-        <item>Only use FFmpeg if no built-in decoder exists</item>
-        <item>Prefer to use FFmpeg over built-in decoders</item>
-        <item>Never use FFmpeg decoders</item>
+        <item>@string/ffmpeg_fallback</item>
+        <item>@string/ffmpeg_prefer</item>
+        <item>@string/ffmpeg_never</item>
     </string-array>
 
+    <string name="next_up_playback_end">At the end of playback</string>
+    <string name="next_up_outro">During end credits/outro</string>
     <string-array name="show_next_up_when_options">
-        <item>At the end of playback</item>
-        <item>During end credits/outro</item>
+        <item>@string/next_up_playback_end</item>
+        <item>@string/next_up_outro</item>
     </string-array>
 
+    <string name="white">White</string>
+    <string name="light_gray">Light gray</string>
+    <string name="dark_gray">Dark gray</string>
+    <string name="yellow">Yellow</string>
+    <string name="cyan">Cyan</string>
+    <string name="magenta">Magenta</string>
     <string-array name="font_colors">
-        <item>White</item>
-        <item>Black</item>
-        <item>Light Gray</item>
-        <item>Dark Gray</item>
-        <item>Red</item>
-        <item>Yellow</item>
-        <item>Green</item>
-        <item>Cyan</item>
-        <item>Blue</item>
-        <item>Magenta</item>
+        <item>@string/white</item>
+        <item>@string/black</item>
+        <item>@string/light_gray</item>
+        <item>@string/dark_gray</item>
+        <item>@string/red</item>
+        <item>@string/yellow</item>
+        <item>@string/green</item>
+        <item>@string/cyan</item>
+        <item>@string/blue</item>
+        <item>@string/magenta</item>
     </string-array>
 
+    <string name="subtitle_edge_outline">Outline</string>
+    <string name="subtitle_edge_shadow">Shadow</string>
     <string-array name="subtitle_edge">
-        <item>None</item>
-        <item>Outline</item>
-        <item>Shadow</item>
+        <item>@string/none</item>
+        <item>@string/subtitle_edge_outline</item>
+        <item>@string/subtitle_edge_shadow</item>
     </string-array>
 
+    <string name="background_style_wrap">Wrap</string>
+    <string name="background_style_boxed">Boxed</string>
     <string-array name="background_style">
-        <item>None</item>
-        <item>Wrap</item>
-        <item>Boxed</item>
+        <item>@string/none</item>
+        <item>@string/background_style_wrap</item>
+        <item>@string/background_style_boxed</item>
     </string-array>
 
+    <string name="exoplayer" translatable="false">ExoPlayer</string>
+    <string name="mpv" translatable="false">MPV</string>
+    <string name="prefer_mpv">Prefer MPV</string>
     <string-array name="player_backend_options">
-        <item>ExoPlayer</item>
-        <item>MPV</item>
-        <item>Prefer MPV</item>
+        <item>@string/exoplayer</item>
+        <item>@string/mpv</item>
+        <item>@string/prefer_mpv</item>
     </string-array>
 
+    <string name="player_backend_options_subtitles_prefer_mpv">Use ExoPlayer for HDR playback</string>
     <string-array name="player_backend_options_subtitles">
-        <item />
-        <item />
-        <item>Use ExoPlayer for HDR playback</item>
+        <item /><!-- Intentionally blank -->
+        <item /><!-- Intentionally blank -->
+        <item>@string/player_backend_options_subtitles_prefer_mpv</item>
     </string-array>
 
+    <string name="aspect_ratios_poster">Poster (2:3)</string>
+    <string name="aspect_ratios_16_9">16:9</string>
+    <string name="aspect_ratios_4_3">4:3</string>
+    <string name="aspect_ratios_square">Square (1:1)</string>
     <string-array name="aspect_ratios">
-        <item>Poster (2:3)</item>
-        <item>16:9</item>
-        <item>4:3</item>
-        <item>Square (1:1)</item>
+        <item>@string/aspect_ratios_poster</item>
+        <item>@string/aspect_ratios_16_9</item>
+        <item>@string/aspect_ratios_4_3</item>
+        <item>@string/aspect_ratios_square</item>
     </string-array>
 
+    <string name="image_type_primary">Primary</string>
+    <string name="image_type_thumb">Thumbary</string>
     <string-array name="image_types">
-        <item>Primary</item>
-        <item>Thumb</item>
+        <item>@string/image_type_primary</item>
+        <item>@string/image_type_thumb</item>
         <!--        <item>Banner</item>-->
     </string-array>
 
+    <string name="backdrop_style_dynamic">Image with dynamic color</string>
+    <string name="backdrop_style_image">Image only</string>
+    <string name="enter_url_api_key"><![CDATA[Enter URL & API Key]]></string>
+    <string name="api_key">API Key</string>
+    <string name="seerr_login">Login to Seerr server</string>
+    <string name="seerr_jellyfin_user">Jellyfin user</string>
+    <string name="seerr_local_user">Local user</string>
+    <string name="search_and_download_subtitles"><![CDATA[Search & download subtitles]]></string>
+    <string name="no_subtitles_found">No remote subtitles were found</string>
+    <string name="series_continueing">Present</string>
     <string-array name="backdrop_style_options">
-        <item>Image with dynamic color</item>
-        <item>Image only</item>
-        <item>None</item>
+        <item>@string/backdrop_style_dynamic</item>
+        <item>@string/backdrop_style_image</item>
+        <item>@string/none</item>
     </string-array>
 
 </resources>