feat: add anti revoke command

src/main/kotlin/cn/rtast/fancybot/commands/AntiRevokeCommand.kt

@@ -0,0 +1,42 @@
+/*
+ * Copyright © 2024 RTAkland
+ * Author: RTAkland
+ * Date: 2024/9/1
+ */
+
+
+package cn.rtast.fancybot.commands
+
+import cn.rtast.fancybot.util.toJson
+import cn.rtast.rob.entity.GetMessage
+import cn.rtast.rob.entity.GroupMessage
+import cn.rtast.rob.util.BaseCommand
+import cn.rtast.rob.util.ob.MessageChain
+import cn.rtast.rob.util.ob.OBMessage
+
+class AntiRevokeCommand : BaseCommand() {
+    override val commandNames = listOf("/revoke", "/rv", "/防撤回")
+
+    override suspend fun executeGroup(listener: OBMessage, message: GroupMessage, args: List<String>) {
+        val messageId = args.first().toLong()
+        listener.getMessage(messageId, "revoke", message.groupId)
+        val msg = MessageChain.Builder()
+            .addAt(message.sender.userId)
+            .addText("正在获取消息中...")
+            .build()
+        listener.sendGroupMessage(message.groupId, msg)
+    }
+
+    companion object {
+        suspend fun getMessageCallback(listener: OBMessage, message: GetMessage) {
+            val msg = MessageChain.Builder()
+                .addAt(message.data.sender.userId)
+                .addNewLine()
+                .addText("被撤回的消息如下: ")
+                .addNewLine()
+                .addText(message.data.message.toJson())
+                .build()
+            listener.sendGroupMessage(message.data.groupId!!, msg)
+        }
+    }
+}