feat: delete temp files on exit

desktop/src/cn/harryh/arkpets/controllers/RootModule.java

@@ -8,6 +8,7 @@
 import cn.harryh.arkpets.EmbeddedLauncher;
 import cn.harryh.arkpets.concurrent.ProcessPool;
 import cn.harryh.arkpets.guitasks.CheckAppUpdateTask;
+import cn.harryh.arkpets.guitasks.DeleteTempFilesTask;
 import cn.harryh.arkpets.guitasks.GuiTask;
 import cn.harryh.arkpets.utils.ArgPending;
 import cn.harryh.arkpets.utils.GuiPrefabs;
@@ -189,12 +190,26 @@ public void syncRemoteMetaInfo() {
         new CheckAppUpdateTask(app.body, GuiTask.GuiTaskStyle.HIDDEN, "auto").start();
     }
 
-    /** Plays the exit animation and then invokes {@link Platform#exit()}.
+    /** Plays the exit animation, deletes temp files, then invokes {@link Platform#exit()}.
      */
     public void exit() {
         popSplashScreen(e -> {
             Logger.info("Launcher", "User close request");
-            GuiPrefabs.fadeOutWindow(app.stage, durationNormal, ev -> Platform.exit());
+            GuiPrefabs.fadeOutWindow(
+                    app.stage,
+                    durationNormal,
+                    ev -> new DeleteTempFilesTask(app.body, GuiTask.GuiTaskStyle.HIDDEN, ".+", 24 * 3600000) {
+                        @Override
+                        protected void onFailed(Throwable e) {
+                            Platform.exit();
+                        }
+
+                        @Override
+                        protected void onSucceeded(boolean result) {
+                            Platform.exit();
+                        }
+                    }.start()
+            );
         }, durationFast, durationNormal);
     }
 

desktop/src/cn/harryh/arkpets/guitasks/DeleteTempFilesTask.java

@@ -0,0 +1,73 @@
+/** Copyright (c) 2022-2025, Harry Huang
+ * At GPL-3.0 License
+ */
+package cn.harryh.arkpets.guitasks;
+
+import cn.harryh.arkpets.Const.PathConfig;
+import cn.harryh.arkpets.utils.IOUtils.FileUtil;
+import javafx.concurrent.Task;
+import javafx.scene.layout.StackPane;
+
+import java.io.File;
+import java.nio.file.*;
+import java.util.List;
+import java.util.stream.Stream;
+import java.util.regex.Pattern;
+
+
+public abstract class DeleteTempFilesTask extends GuiTask {
+    protected final Pattern regex;
+    protected final long timestamp;
+
+    public DeleteTempFilesTask(StackPane parent, GuiTaskStyle style, String matchRegex, long beforeMillis) {
+        super(parent, style);
+        this.regex = Pattern.compile(matchRegex);
+        this.timestamp = System.currentTimeMillis() - beforeMillis;
+    }
+
+    @Override
+    protected Task<Boolean> getTask() {
+        return new Task<>() {
+            @Override
+            protected Boolean call() throws Exception {
+                File temp = new File(PathConfig.tempDirPath);
+                if (!temp.isDirectory()) {
+                    return true;
+                }
+
+                List<Path> filesToDelete;
+                try (Stream<Path> pathStream = Files.walk(temp.toPath())) {
+                    filesToDelete = pathStream
+                            .filter(path -> {
+                                File file = path.toFile();
+                                return file.isFile()
+                                        && regex.matcher(file.getName()).matches()
+                                        && file.lastModified() < timestamp;
+                            })
+                            .toList();
+                }
+
+                int total = filesToDelete.size();
+                if (total == 0) {
+                    return true;
+                }
+
+                this.updateProgress(0, total);
+                for (int i = 0; i < filesToDelete.size(); i++) {
+                    if (isCancelled()) {
+                        break;
+                    }
+                    FileUtil.delete(filesToDelete.get(i), true);
+                    updateProgress(i + 1, total);
+                }
+
+                return !isCancelled();
+            }
+        };
+    }
+
+    @Override
+    protected String getHeader() {
+        return "正在清理临时文件...";
+    }
+}