delete game cache when deleting game

app/src/main/java/net/rpcs3/ui/games/GamesScreen.kt

@@ -63,9 +63,11 @@ import net.rpcs3.ProgressRepository
 import net.rpcs3.R
 import net.rpcs3.RPCS3
 import net.rpcs3.RPCS3Activity
+import net.rpcs3.utils.FileUtil
 import net.rpcs3.dialogs.AlertDialogQueue
 import java.io.File
 import kotlin.concurrent.thread
+import kotlin.text.substringAfterLast
 
 private fun withAlpha(color: Color, alpha: Float): Color {
     return Color(
@@ -131,10 +133,17 @@ fun GameItem(game: Game) {
                         if (path.exists()) {
                             GameRepository.remove(game)
                             path.deleteRecursively()
+                            if (!FileUtil.deleteCache(context, game.info.path.substringAfterLast("/"))) {
+                                AlertDialogQueue.showDialog(
+                                    title = "Unexpected Error",
+                                    message = "Failed to delete game cache",
+                                    confirmText = "Close",
+                                    dismissText = ""
+                                ) 
+                            }
                         }
-
-                        // FIXME: delete cache
-                    })
+                    }
+                )
             }
         }
 

app/src/main/java/net/rpcs3/utils/FileUtil.kt

@@ -214,6 +214,10 @@ object FileUtil {
         val paths = uri.pathSegments
         return paths.size == 2 && "tree" == paths[0]
     }
+
+    fun deleteCache(ctx: Context, gameId: String): Boolean {
+         return File(ctx.getExternalFilesDir(null)!!, "cache/cache/$gameId").deleteRecursively()
+    }
 }
 
 class SimpleDocument(val filename: String, val mimeType: String, val uri: Uri) {