Implemented chat delay.

Signed-off-by: Pavel Erokhin (MairwunNx) <MairwunNx@gmail.com>

Author: MairwunNx

src/main/kotlin/com/mairwunnx/projectessentials/chat/ChatCooldown.kt

@@ -0,0 +1,39 @@
+package com.mairwunnx.projectessentials.chat
+
+import java.time.Duration
+import java.time.ZonedDateTime
+import kotlin.time.ExperimentalTime
+import kotlin.time.toKotlinDuration
+
+object ChatCooldown {
+    private const val DEFAULT_COOLDOWN = 5
+    private val cooldownMap = hashMapOf<String, ZonedDateTime>()
+
+    fun addCooldown(nickname: String) {
+        removeCooldown(nickname)
+        cooldownMap[nickname] = ZonedDateTime.now()
+    }
+
+    fun removeCooldown(nickname: String) {
+        if (cooldownMap[nickname] == null) return
+        cooldownMap.remove(nickname)
+    }
+
+    fun getCooldownIsExpired(
+        nickname: String,
+        minSecondsDuration: Int = DEFAULT_COOLDOWN
+    ): Boolean = getCooldownTimeLeft(nickname) >= minSecondsDuration
+
+    @UseExperimental(ExperimentalTime::class)
+    fun getCooldownTimeLeft(nickname: String): Double {
+        if (cooldownMap[nickname] != null) {
+            val commandExecutionTime = cooldownMap[nickname]
+            val dateTimeNow = ZonedDateTime.now()
+            val duration = Duration.between(commandExecutionTime, dateTimeNow)
+            return duration.toKotlinDuration().inSeconds
+        }
+        throw KotlinNullPointerException(
+            "An error occurred while getting chat cooldown date time by nickname ($nickname)"
+        )
+    }
+}

src/main/kotlin/com/mairwunnx/projectessentials/chat/EntryPoint.kt

@@ -77,6 +77,24 @@ class EntryPoint : EssBase() {
             return
         }
 
+        if (!hasPermission(event.player, "ess.chat.chatdelay.bypass", 3)) {
+            if (ChatCooldown.getCooldownIsExpired(
+                    event.player.name.string,
+                    ChatModelUtils.chatModel.moderation.messagingCooldown
+                )
+            ) {
+                ChatCooldown.addCooldown(event.player.name.string)
+            } else {
+                sendMsg(
+                    "chat",
+                    event.player.commandSource,
+                    "chat.cooldown_not_expired"
+                )
+                event.isCanceled = true
+                return
+            }
+        }
+
         if (event.message.contains("&")) {
             if (hasPermission(event.player, "ess.chat.color", 2)) {
                 event.component = TextComponentUtils.toTextComponent {

src/main/kotlin/com/mairwunnx/projectessentials/chat/models/ChatModel.kt

@@ -14,7 +14,8 @@ data class ChatModel(
         var blockedChars: List<String> = mutableListOf(),
         var modifyBlockedWords: Boolean = true,
         var blockedWordsMask: String = "**beep**",
-        var maxMessageLength: Int = 128
+        var maxMessageLength: Int = 128,
+        var messagingCooldown: Int = 5
     )
 
     @Serializable

src/main/resources/assets/projectessentialschat/lang/en_us.json

@@ -5,5 +5,6 @@
   "project_essentials_chat.chat.blocked_word": "§cMessage not sent, your message contains blocked word: \"§7%s\".",
   "project_essentials_chat.chat.blocked_char": "§cMessage not sent, your message contains blocked symbol.",
   "project_essentials_chat.chat.message_maxlength": "§cMessage not sent, your message length exceeds maximum allowed length.",
-  "project_essentials_chat.chat.mention_all_aborted": "§cMention not sent to all players, you §7don't have permission§c to mention all players."
+  "project_essentials_chat.chat.mention_all_aborted": "§cMention not sent to all players, you §7don't have permission§c to mention all players.",
+  "project_essentials_chat.chat.cooldown_not_expired": "§cMessage not sent, wait chat cooldown after your previous message."
 }

src/main/resources/assets/projectessentialschat/lang/ru_ru.json

@@ -5,5 +5,6 @@
   "project_essentials_chat.chat.blocked_word": "§cСообщение не отправлено, ваше сообщение содержит заблокированное слово: \"§7%s\".",
   "project_essentials_chat.chat.blocked_char": "§cСообщение не отправлено, ваше сообщение содержит заблокированный символ.",
   "project_essentials_chat.chat.message_maxlength": "§cСообщение не отправлено, ваше сообщение превышает максимально допустимую длину.",
-  "project_essentials_chat.chat.mention_all_aborted": "§cОповещение не было отправлено всем игрокам, у вас §7нет прав§c на оповещение всех игроков."
+  "project_essentials_chat.chat.mention_all_aborted": "§cОповещение не было отправлено всем игрокам, у вас §7нет прав§c на оповещение всех игроков.",
+  "project_essentials_chat.chat.cooldown_not_expired": "§cСообщение не отправлено, дождитесь окончания задержки в чате после предыдущего Вашего сообщения."
 }