add support of join request approving/declining

tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/chat/invite_links/ApproveChatJoinRequest.kt

@@ -0,0 +1,39 @@
+package dev.inmo.tgbotapi.extensions.api.chat.invite_links
+
+import dev.inmo.tgbotapi.bot.TelegramBot
+import dev.inmo.tgbotapi.requests.chat.invite_links.ApproveChatJoinRequest
+import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.chat.abstracts.PublicChat
+import dev.inmo.tgbotapi.types.update.ChatJoinRequestUpdate
+
+suspend fun TelegramBot.approveChatJoinRequest(
+    chatId: ChatIdentifier,
+    userId: UserId
+) = execute(ApproveChatJoinRequest(chatId, userId))
+
+suspend fun TelegramBot.approveChatJoinRequest(
+    chat: PublicChat,
+    userId: UserId
+) = approveChatJoinRequest(chat.id, userId)
+
+suspend fun TelegramBot.approveChatJoinRequest(
+    chatId: ChatIdentifier,
+    user: User
+) = approveChatJoinRequest(chatId, user.id)
+
+suspend fun TelegramBot.approveChatJoinRequest(
+    chat: PublicChat,
+    user: User
+) = approveChatJoinRequest(chat.id, user.id)
+
+suspend fun TelegramBot.approveChatJoinRequest(
+    chatJoinRequest: ChatJoinRequest
+) = approveChatJoinRequest(chatJoinRequest.chat, chatJoinRequest.user)
+
+suspend fun TelegramBot.approve(
+    chatJoinRequest: ChatJoinRequest
+) = approveChatJoinRequest(chatJoinRequest)
+
+suspend fun TelegramBot.approveChatJoinRequest(
+    chatJoinRequestUpdate: ChatJoinRequestUpdate
+) = approveChatJoinRequest(chatJoinRequestUpdate.data)

tgbotapi.api/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/api/chat/invite_links/DeclineChatJoinRequest.kt

@@ -0,0 +1,40 @@
+package dev.inmo.tgbotapi.extensions.api.chat.invite_links
+
+import dev.inmo.tgbotapi.bot.TelegramBot
+import dev.inmo.tgbotapi.requests.chat.invite_links.ApproveChatJoinRequest
+import dev.inmo.tgbotapi.requests.chat.invite_links.DeclineChatJoinRequest
+import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.chat.abstracts.PublicChat
+import dev.inmo.tgbotapi.types.update.ChatJoinRequestUpdate
+
+suspend fun TelegramBot.declineChatJoinRequest(
+    chatId: ChatIdentifier,
+    userId: UserId
+) = execute(DeclineChatJoinRequest(chatId, userId))
+
+suspend fun TelegramBot.declineChatJoinRequest(
+    chat: PublicChat,
+    userId: UserId
+) = declineChatJoinRequest(chat.id, userId)
+
+suspend fun TelegramBot.declineChatJoinRequest(
+    chatId: ChatIdentifier,
+    user: User
+) = declineChatJoinRequest(chatId, user.id)
+
+suspend fun TelegramBot.declineChatJoinRequest(
+    chat: PublicChat,
+    user: User
+) = declineChatJoinRequest(chat.id, user.id)
+
+suspend fun TelegramBot.declineChatJoinRequest(
+    chatJoinRequest: ChatJoinRequest
+) = declineChatJoinRequest(chatJoinRequest.chat, chatJoinRequest.user)
+
+suspend fun TelegramBot.decline(
+    chatJoinRequest: ChatJoinRequest
+) = declineChatJoinRequest(chatJoinRequest)
+
+suspend fun TelegramBot.declineChatJoinRequest(
+    chatJoinRequestUpdate: ChatJoinRequestUpdate
+) = declineChatJoinRequest(chatJoinRequestUpdate.data)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/invite_links/ChatJoinRequestAnswer.kt

@@ -0,0 +1,38 @@
+package dev.inmo.tgbotapi.requests.chat.invite_links
+
+import dev.inmo.tgbotapi.requests.abstracts.SimpleRequest
+import dev.inmo.tgbotapi.types.*
+import kotlinx.serialization.DeserializationStrategy
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.SerializationStrategy
+import kotlinx.serialization.builtins.serializer
+
+sealed interface ChatJoinRequestAnswer : SimpleRequest<Boolean> {
+    val chatId: ChatIdentifier
+    val userId: UserId
+
+    override val resultDeserializer: DeserializationStrategy<Boolean>
+        get() = Boolean.serializer()
+}
+
+@Serializable
+data class ApproveChatJoinRequest(
+    override val chatId: ChatIdentifier,
+    override val userId: UserId
+) : ChatJoinRequestAnswer {
+    override val requestSerializer: SerializationStrategy<*>
+        get() = serializer()
+
+    override fun method(): String  = "approveChatJoinRequest"
+}
+
+@Serializable
+data class DeclineChatJoinRequest(
+    override val chatId: ChatIdentifier,
+    override val userId: UserId
+) : ChatJoinRequestAnswer {
+    override val requestSerializer: SerializationStrategy<*>
+        get() = serializer()
+
+    override fun method(): String  = "declineChatJoinRequest"
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/UpdateTypes.kt

@@ -13,6 +13,7 @@ const val UPDATE_POLL = "poll"
 const val UPDATE_POLL_ANSWER = "poll_answer"
 const val MY_CHAT_MEMBER = "my_chat_member"
 const val CHAT_MEMBER = "chat_member"
+const val CHAT_JOIN_REQUEST = "chat_join_request"
 
 val ALL_UPDATES_LIST = listOf(
     UPDATE_MESSAGE,
@@ -27,5 +28,6 @@ val ALL_UPDATES_LIST = listOf(
     UPDATE_POLL,
     UPDATE_POLL_ANSWER,
     MY_CHAT_MEMBER,
-    CHAT_MEMBER
+    CHAT_MEMBER,
+    CHAT_JOIN_REQUEST
 )