Sort & format subtitle download options (#88)

Sorts the subtitle download options by community rating and downloads.

Also abbreviates the download count if it's large (eg 5133->5.1k).

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

@@ -42,6 +42,7 @@ import com.github.damontecres.wholphin.ui.components.EditTextBox
 import com.github.damontecres.wholphin.ui.components.ErrorMessage
 import com.github.damontecres.wholphin.ui.ifElse
 import com.github.damontecres.wholphin.ui.tryRequestFocus
+import com.github.damontecres.wholphin.util.abbreviateNumber
 import org.jellyfin.sdk.model.api.RemoteSubtitleInfo
 
 @Composable
@@ -200,7 +201,7 @@ fun convertRemoteSubtitles(
                     if (op.forced == true) {
                         add("Forced")
                     }
-                    add("${op.downloadCount ?: 0} downloads")
+                    add("${abbreviateNumber(op.downloadCount ?: 0)} downloads")
                 }
             Text(
                 text = strings.joinToString(" - "),

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

@@ -836,10 +836,17 @@ class PlaybackViewModel
                 try {
                     currentItemPlayback.value?.itemId?.let {
                         Timber.v("Searching for remote subtitles for %s", it)
-                        val results by api.subtitleApi.searchRemoteSubtitles(
-                            itemId = it,
-                            language = language,
-                        )
+                        val results =
+                            api.subtitleApi
+                                .searchRemoteSubtitles(
+                                    itemId = it,
+                                    language = language,
+                                ).content
+                                .sortedWith(
+                                    compareByDescending<RemoteSubtitleInfo> { it.communityRating }
+                                        .thenByDescending { it.downloadCount },
+                                )
+
                         subtitleSearch.setValueOnMain(SubtitleSearch.Success(results))
                     }
                 } catch (ex: Exception) {

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

@@ -15,6 +15,7 @@ import org.jellyfin.sdk.model.api.MediaStream
 import org.jellyfin.sdk.model.api.MediaStreamType
 import java.time.LocalDateTime
 import java.time.format.DateTimeFormatter
+import java.util.Locale
 
 /**
  * Format a [LocalDateTime] as `Aug 24, 2000`
@@ -108,3 +109,21 @@ fun getSubtitleDisplay(
         formatSubtitleLang(it.mediaStreams)
     }
 }
+
+private val abbrevSuffixes = listOf("", "K", "M", "B")
+
+/**
+ * Format a number by abbreviation, eg 5533 => 5.5K
+ */
+fun abbreviateNumber(number: Int): String {
+    if (number < 1000) {
+        return number.toString()
+    }
+    var unit = 0
+    var count = number.toDouble()
+    while (count >= 1000 && unit + 1 < abbrevSuffixes.size) {
+        count /= 1000
+        unit++
+    }
+    return String.format(Locale.getDefault(), "%.1f%s", count, abbrevSuffixes[unit])
+}