feat(save): 新增定时自动保存功能。

src/main/java/cc/carm/plugin/timereward/Main.java

@@ -17,6 +17,7 @@ import cc.carm.plugin.timereward.storage.database.MySQLStorage;
 import org.bstats.bukkit.Metrics;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Entity;
+import org.bukkit.scheduler.BukkitRunnable;
 
 import java.io.File;
 
@@ -31,6 +32,8 @@ public class Main extends EasyPlugin {
     protected UserManager userManager;
     protected RewardManager rewardManager;
 
+    protected BukkitRunnable autoSaveTask;
+
     public Main() {
         instance = this;
     }
@@ -96,11 +99,32 @@ public class Main extends EasyPlugin {
             info("已禁用检查更新，跳过。");
         }
 
+        if (PluginConfig.AUTO_SAVE.resolve() > 0) {
+            long period = PluginConfig.AUTO_SAVE.resolve() * 20L;
+            this.autoSaveTask = new BukkitRunnable() {
+                int i = 0;
+
+                @Override
+                public void run() {
+                    i = i == Integer.MAX_VALUE ? 0 : i + 1;
+                    debugging("第" + i + "次自动保存用户在线数据...");
+                    userManager.saveAll();
+                }
+            };
+            this.autoSaveTask.runTaskTimerAsynchronously(this, period, period);
+        }
+
         return true;
     }
 
     @Override
     protected void shutdown() {
+
+        if (this.autoSaveTask != null && !this.autoSaveTask.isCancelled()) {
+            this.autoSaveTask.cancel();
+            this.autoSaveTask = null;
+        }
+
         info("终止奖励发放进程...");
         this.rewardManager.shutdown();
 

src/main/java/cc/carm/plugin/timereward/command/sub/UserCommand.java

@@ -33,6 +33,11 @@ public class UserCommand extends SubCommand<MainCommand> {
         }
 
         UserRewardData user = TimeRewardAPI.getUserManager().get(player);
+        if (user == null) {
+            PluginMessages.LOADING.sendTo(sender, args[0]);
+            return null;
+        }
+
         PluginMessages.USER_INFO.prepare(
                 player.getName(),
                 user.getOnlineDuration(IntervalType.DAILY).getSeconds(),

src/main/java/cc/carm/plugin/timereward/conf/PluginConfig.java

@@ -25,6 +25,13 @@ public interface PluginConfig extends Configuration {
             "检查更新为异步操作，绝不会影响性能与使用体验。"
     })
     ConfiguredValue<Boolean> CHECK_UPDATE = ConfiguredValue.of(Boolean.class, true);
+    
+    @HeaderComments({
+            "自动保存设定，用于设置自动保存的时间间隔，单位为秒（小于等于0则关闭）。",
+            "一般来说，玩家会在退出游戏时进行保存。",
+            "但如果您希望额外的定期保存数据以避免数据丢失，可以选择开启。",
+    })
+    ConfiguredValue<Long> AUTO_SAVE = ConfiguredValue.of(Long.class, 60L);
 
     @HeaderComments("周起始日，用于判断周度奖励的结算日期。")
     ConfiguredValue<DayOfWeek> WEEK_FIRST_DAY = ConfiguredValue.builderOf(DayOfWeek.class)

src/main/java/cc/carm/plugin/timereward/conf/PluginMessages.java

@@ -79,6 +79,10 @@ public interface PluginMessages extends Configuration {
             "&f玩家 &e%(player) &f并不在线。"
     ).params("player").build();
 
+    ConfiguredMessage<BaseComponent[]> LOADING = list().defaults(
+            "&e&l请稍候... &f您的在线数据正在加载中。"
+    ).params("player").build();
+
     ConfiguredMessage<BaseComponent[]> NOT_EXISTS = list().defaults(
             "&f奖励 &e%(award) &f并不存在。"
     ).params("award").build();

src/main/java/cc/carm/plugin/timereward/hooker/PAPIExpansion.java

@@ -10,50 +10,21 @@ import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.jetbrains.annotations.NotNull;
 
+import java.time.Duration;
 import java.util.Collections;
 import java.util.function.BiFunction;
 import java.util.function.Function;
+import java.util.function.ToLongFunction;
 
 public class PAPIExpansion extends EasyPlaceholder {
 
     public PAPIExpansion(@NotNull JavaPlugin plugin, @NotNull String rootIdentifier) {
         super(plugin, rootIdentifier);
 
-        handle("seconds", userHandler((user, args) -> {
-            if (args.length < 1) return "请填写时间类型";
-            IntervalType type = IntervalType.parse(args[0]);
-
-            if (type == null) return "时间类型不存在";
-
-            return user.getOnlineDuration(type).getSeconds();
-        }), Collections.singletonList("<时间类型>"), "time");
-
-        handle("minutes", userHandler((user, args) -> {
-            if (args.length < 1) return "请填写时间类型";
-            IntervalType type = IntervalType.parse(args[0]);
-
-            if (type == null) return "时间类型不存在";
-
-            return user.getOnlineDuration(type).toMinutes();
-        }), Collections.singletonList("<时间类型>"));
-
-        handle("hours", userHandler((user, args) -> {
-            if (args.length < 1) return "请填写时间类型";
-            IntervalType type = IntervalType.parse(args[0]);
-
-            if (type == null) return "时间类型不存在";
-
-            return user.getOnlineDuration(type).toHours();
-        }), Collections.singletonList("<时间类型>"));
-
-        handle("days", userHandler((user, args) -> {
-            if (args.length < 1) return "请填写时间类型";
-            IntervalType type = IntervalType.parse(args[0]);
-
-            if (type == null) return "时间类型不存在";
-
-            return user.getOnlineDuration(type).toDays();
-        }), Collections.singletonList("<时间类型>"));
+        handle("seconds", timeHandler(Duration::getSeconds), Collections.singletonList("<时间类型>"), "time");
+        handle("minutes", timeHandler(Duration::toMinutes), Collections.singletonList("<时间类型>"));
+        handle("hours", timeHandler(Duration::toHours), Collections.singletonList("<时间类型>"));
+        handle("days", timeHandler(Duration::toDays), Collections.singletonList("<时间类型>"));
 
         handle("reward",
                 rewardHandler(RewardContents::getDisplayName),
@@ -89,10 +60,21 @@ public class PAPIExpansion extends EasyPlaceholder {
     protected <R> PlaceholderHandler userHandler(BiFunction<UserRewardData, String[], R> userFunction) {
         return (player, args) -> {
             if (player == null || !player.isOnline()) return "加载中...";
-            return userFunction.apply(TimeRewardAPI.getUserManager().get((Player) player), args);
+            UserRewardData data = TimeRewardAPI.getUserManager().get((Player) player);
+            if (data == null) return "加载中...";
+            return userFunction.apply(data, args);
         };
     }
 
+    protected PlaceholderHandler timeHandler(ToLongFunction<Duration> timeFunction) {
+        return userHandler((user, args) -> {
+            if (args.length < 1) return "请填写时间类型";
+            IntervalType type = IntervalType.parse(args[0]);
+            if (type == null) return "时间类型不存在";
+            return timeFunction.applyAsLong(user.getOnlineDuration(type));
+        });
+    }
+
     protected <R> PlaceholderHandler rewardHandler(Function<RewardContents, R> function) {
         return (player, args) -> {
             if (args.length < 1) return "请填写奖励ID";

src/main/java/cc/carm/plugin/timereward/manager/RewardManager.java

@@ -72,6 +72,8 @@ public class RewardManager {
         if (!reward.checkPermission(player)) return false; // 满足权限
 
         UserRewardData user = TimeRewardAPI.getUserManager().get(player);
+        if (user == null) return false; // 玩家数据加载中
+
         IntervalType intervalType = reward.getType();
         LocalDateTime lastClaimed = user.getClaimedDate(reward);
 
@@ -106,6 +108,8 @@ public class RewardManager {
             try {
 
                 UserRewardData user = TimeRewardAPI.getUserManager().get(player);
+                if (user == null) return false; // 玩家数据加载中
+                
                 Main.getStorage().addClaimedData(player.getUniqueId(), map);
                 contents.forEach(user::updateClaimed);
 

src/main/java/cc/carm/plugin/timereward/manager/UserManager.java

@@ -23,8 +23,8 @@ public class UserManager extends UserDataManager<UUID, UserRewardData> {
         super(plugin);
     }
 
-    public @NotNull UserRewardData get(Player player) {
-        return get(player.getUniqueId());
+    public @Nullable UserRewardData get(Player player) {
+        return getNullable(player.getUniqueId());
     }
 
     @Override