Moon Card

src/main/java/emu/grasscutter/task/Task.java

@@ -0,0 +1,11 @@
+package emu.grasscutter.task;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Task {
+    String taskName() default "NO_NAME";
+    String taskCronExpression() default "0 0 0 0 0 ?";
+    String triggerName() default "NO_NAME";
+}

src/main/java/emu/grasscutter/task/TaskHandler.java

@@ -0,0 +1,11 @@
+package emu.grasscutter.task;
+
+import org.quartz.Job;
+import org.quartz.JobExecutionContext;
+import org.quartz.JobExecutionException;
+
+public interface TaskHandler extends Job {
+    default void execute(JobExecutionContext context) throws JobExecutionException {
+        
+    }
+}

src/main/java/emu/grasscutter/task/TaskMap.java

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+package emu.grasscutter.task;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.game.Account;
+import emu.grasscutter.game.GenshinPlayer;
+
+import org.quartz.CronScheduleBuilder;
+import org.quartz.CronTrigger;
+import org.quartz.JobBuilder;
+import org.quartz.JobDetail;
+import org.quartz.Scheduler;
+import org.quartz.SchedulerException;
+import org.quartz.SchedulerFactory;
+import org.quartz.Trigger;
+import org.quartz.TriggerBuilder;
+import org.quartz.impl.StdSchedulerFactory;
+import org.quartz.spi.MutableTrigger;
+import org.reflections.Reflections;
+
+import java.util.*;
+
+@SuppressWarnings({"UnusedReturnValue", "unused"})
+public final class TaskMap {
+    private final Map<String, TaskHandler> tasks = new HashMap<>();
+    private final Map<String, Task> annotations = new HashMap<>();
+    private final SchedulerFactory schedulerFactory = new StdSchedulerFactory();
+    
+    public TaskMap() {
+        this(false);
+    }
+
+    public TaskMap(boolean scan) {
+        if (scan) this.scan();
+    }
+
+    public static TaskMap getInstance() {
+        return Grasscutter.getGameServer().getTaskMap();
+    }
+
+    public TaskMap registerTask(String taskName, TaskHandler task) {
+        Task annotation = task.getClass().getAnnotation(Task.class);
+        this.annotations.put(taskName, annotation);
+        this.tasks.put(taskName, task);
+
+        // register task
+        try {
+            Scheduler scheduler = schedulerFactory.getScheduler();
+            JobDetail job = JobBuilder
+                        .newJob(task.getClass())
+                        .withIdentity(taskName)
+                        .build();
+            
+            Trigger convTrigger = TriggerBuilder.newTrigger()
+                        .withIdentity(annotation.triggerName())
+                        .withSchedule(CronScheduleBuilder.cronSchedule(annotation.taskCronExpression()))
+                        .build();
+            
+            scheduler.scheduleJob(job, convTrigger);
+            scheduler.start();
+        } catch (SchedulerException e) {
+            e.printStackTrace();
+        }
+
+        return this;
+    }
+
+    public List<TaskHandler> getHandlersAsList() {
+        return new LinkedList<>(this.tasks.values());
+    }
+
+    public HashMap<String, TaskHandler> getHandlers() {
+        return new LinkedHashMap<>(this.tasks);
+    }
+
+    public TaskHandler getHandler(String taskName) {
+        return this.tasks.get(taskName);
+    }
+
+    private void scan() {
+        Reflections reflector = Grasscutter.reflector;
+        Set<Class<?>> classes = reflector.getTypesAnnotatedWith(Task.class);
+        System.out.println("Found " + classes.size() + " tasks.");
+        classes.forEach(annotated -> {
+            try {
+                Task taskData = annotated.getAnnotation(Task.class);
+                Object object = annotated.newInstance();
+                if (object instanceof TaskHandler)
+                    this.registerTask(taskData.taskName(), (TaskHandler) object);
+                else Grasscutter.getLogger().error("Class " + annotated.getName() + " is not a TaskHandler!");
+            } catch (Exception exception) {
+                Grasscutter.getLogger().error("Failed to register task handler for " + annotated.getSimpleName(), exception);
+            }
+        });
+    }
+}

src/main/java/emu/grasscutter/task/tasks/MoonCard.java

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+package emu.grasscutter.task.tasks;
+
+import emu.grasscutter.database.DatabaseManager;
+import emu.grasscutter.game.GenshinPlayer;
+import emu.grasscutter.task.Task;
+import emu.grasscutter.task.TaskHandler;
+
+import java.util.List;
+
+import org.quartz.JobExecutionContext;
+import org.quartz.JobExecutionException;
+
+@Task(taskName = "MoonCard", taskCronExpression = "0 0 0 * * ?", triggerName = "MoonCardTrigger")
+public final class MoonCard implements TaskHandler {
+    @Override
+    public void execute(JobExecutionContext context) throws JobExecutionException {
+        List<GenshinPlayer> players = DatabaseManager.getDatastore().find(GenshinPlayer.class).stream().toList();
+        for (GenshinPlayer player : players) {
+            if (player.isOnline()) {
+                if (player.inMoonCard()) {
+                    player.getTodayMoonCard();
+                }
+            }
+        }
+    }
+}