feat: add maintenance mode

src/main/resources/lang/en_US.yml

@@ -84,6 +84,7 @@ help:
     repair: "  &f/repair &7- Repair held or all items"
     admin: "  &f/essc admin &7- Toggle admin mode"
     tpsbar: "  &f/tpsbar [player] &7- Toggle TPS boss bar"
+    maintenance: "  &f/maintenance <on|off|status|reload> &7- Manage maintenance mode"
 
 blocks-menu:
   title: "&6&lEssentialsC &8- &e&lShortcut Menu"
@@ -170,3 +171,14 @@ mobdrops-menu:
     name: "&dEnderman Drops"
     status: "&7Current status: {status}"
     toggle: "&eClick to toggle"
+
+maintenance:
+  status:
+    enabled: "&cEnabled"
+    disabled: "&aDisabled"
+  messages:
+    enabled: "&aMaintenance mode enabled."
+    disabled: "&cMaintenance mode disabled."
+    reloaded: "&aMaintenance configuration reloaded."
+    status: "&7Maintenance mode status: {status}"
+    usage: "&cUsage: /maintenance <on|off|status|reload>"

src/main/resources/lang/zh_CN.yml

@@ -84,6 +84,7 @@ help:
     repair: "  &f/repair &7- 修复手中或全部物品"
     admin: "  &f/essc admin &7- 切换管理模式"
     tpsbar: "  &f/tpsbar [玩家] &7- 切换 TPS 状态栏"
+    maintenance: "  &f/maintenance <on|off|status|reload> &7- 管理维护模式"
 
 blocks-menu:
   title: "&6&lEssentialsC &8- &e&l便捷菜单"
@@ -170,3 +171,14 @@ mobdrops-menu:
     name: "&d末影人掉落"
     status: "&7当前状态：{status}"
     toggle: "&e点击切换"
+
+maintenance:
+  status:
+    enabled: "&c开启"
+    disabled: "&a关闭"
+  messages:
+    enabled: "&a维护模式已开启。"
+    disabled: "&c维护模式已关闭。"
+    reloaded: "&a维护模式配置已重载。"
+    status: "&7维护模式当前状态：{status}"
+    usage: "&c用法：/maintenance <on|off|status|reload>"

src/main/resources/maintenance.yml

@@ -0,0 +1,31 @@
+# EssentialsC 维护模式配置
+
+config-version: 1
+
+# 是否开启维护模式。
+enabled: false
+
+# 拥有该权限的玩家可以在维护模式下进入服务器。
+bypass-permission: "essentialsc.maintenance.bypass"
+
+motd:
+  # 维护模式开启时是否替换服务器列表 MOTD。
+  enabled: true
+  lines:
+    - "&c服务器维护中"
+    - "&7请稍后再试"
+
+kick-message:
+  - "&c服务器正在维护"
+  - "&7请稍后再进入"
+
+bossbar:
+  # 维护模式开启时是否向无绕过权限的在线玩家显示 BossBar。
+  enabled: true
+  title: "&c服务器正在维护"
+  # 可选值：PINK / BLUE / RED / GREEN / YELLOW / PURPLE / WHITE
+  color: RED
+  # 可选值：SOLID / SEGMENTED_6 / SEGMENTED_10 / SEGMENTED_12 / SEGMENTED_20
+  style: SOLID
+  # 进度范围：0.0 - 1.0
+  progress: 1.0

src/main/resources/modules.yml

@@ -26,3 +26,6 @@ modules:
   mob-drops:
     # 末影人掉落控制菜单和监听器。默认关闭，用于保留过去标准版的行为。
     enabled: false
+  maintenance:
+    # 维护模式。开启维护后可替换 MOTD，并阻止无绕过权限的玩家进入。
+    enabled: true

src/main/resources/paper-plugin.yml

@@ -92,6 +92,12 @@ permissions:
   essentialsc.command.tpsbar.others:
     description: 允许为其他玩家切换 /tpsbar
     default: op
+  essentialsc.command.maintenance:
+    description: 允许管理维护模式
+    default: op
+  essentialsc.maintenance.bypass:
+    description: 允许在维护模式下进入服务器
+    default: op
   essentialsc.shulkerbox.open:
     description: 允许通过 Shift+右键快捷打开潜影盒
     default: op
@@ -129,5 +135,7 @@ permissions:
       essentialsc.command.reload: true
       essentialsc.command.tpsbar: true
       essentialsc.command.tpsbar.others: true
+      essentialsc.command.maintenance: true
+      essentialsc.maintenance.bypass: true
       essentialsc.shulkerbox.open: true
       essentialsc.mobdrops.enderman: true