some progress on business chats

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/chat/get/GetChat.kt

@@ -2,6 +2,7 @@ package dev.inmo.tgbotapi.requests.chat.get
 
 import dev.inmo.tgbotapi.abstracts.types.ChatRequest
 import dev.inmo.tgbotapi.requests.abstracts.SimpleRequest
+import dev.inmo.tgbotapi.types.BusinessChatId
 import dev.inmo.tgbotapi.types.ChatIdWithThreadId
 import dev.inmo.tgbotapi.types.ChatIdentifier
 import dev.inmo.tgbotapi.types.chat.ExtendedChatSerializer
@@ -16,10 +17,10 @@ data class GetChat(
 ): ChatRequest, SimpleRequest<ExtendedChat> {
     override fun method(): String = "getChat"
     @Transient
-    override val resultDeserializer: DeserializationStrategy<ExtendedChat> = if (chatId is ChatIdWithThreadId) {
+    override val resultDeserializer: DeserializationStrategy<ExtendedChat> = when {
-        ExtendedChatSerializer.BasedOnForumThread(chatId.threadId)
+        chatId is ChatIdWithThreadId -> ExtendedChatSerializer.BasedOnForumThread(chatId.threadId)
-    } else {
+        chatId is BusinessChatId -> ExtendedChatSerializer.BasedOnBusinessConnection(chatId.businessId)
-        ExtendedChatSerializer.Companion
+        else -> ExtendedChatSerializer.Companion
     }
     override val requestSerializer: SerializationStrategy<*>
         get() = serializer()

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

@@ -1,6 +1,7 @@
 package dev.inmo.tgbotapi.types
 
 import dev.inmo.micro_utils.common.Warning
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.types.chat.User
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.internal.ClassCastsIncluded
@@ -29,12 +30,17 @@ sealed interface IdChatIdentifier : ChatIdentifier {
     abstract val chatId: RawChatId
     val threadId: MessageThreadId?
         get() = null
+    val businessId: BusinessConnectionId?
+        get() = null
 
     companion object {
         operator fun invoke(chatId: RawChatId) = ChatId(chatId)
         operator fun invoke(chatId: RawChatId, threadId: MessageThreadId?) = threadId ?.let {
             ChatIdWithThreadId(chatId, threadId)
         } ?: ChatId(chatId)
+        operator fun invoke(chatId: RawChatId, businessConnectionId: BusinessConnectionId?) = businessConnectionId ?.let {
+            BusinessChatId(chatId, businessConnectionId)
+        } ?: ChatId(chatId)
     }
 }
 
@@ -52,6 +58,16 @@ value class ChatIdWithThreadId(val chatIdWithThreadId: Pair<RawChatId, MessageTh
 
     constructor(chatId: RawChatId, threadId: MessageThreadId): this(chatId to threadId)
 }
+@Serializable(ChatIdentifierSerializer::class)
+@JvmInline
+value class BusinessChatId(val chatIdWithBusinessConnectionId: Pair<RawChatId, BusinessConnectionId>) : IdChatIdentifier {
+    override val chatId: RawChatId
+        get() = chatIdWithBusinessConnectionId.first
+    override val businessId: BusinessConnectionId
+        get() = chatIdWithBusinessConnectionId.second
+
+    constructor(chatId: RawChatId, businessConnectionId: BusinessConnectionId): this(chatId to businessConnectionId)
+}
 
 val ChatIdentifier.threadId: MessageThreadId?
     get() = (this as? IdChatIdentifier) ?.threadId
@@ -59,9 +75,11 @@ val ChatIdentifier.threadId: MessageThreadId?
 fun IdChatIdentifier.toChatId() = when (this) {
     is ChatId -> this
     is ChatIdWithThreadId -> ChatId(chatId)
+    is BusinessChatId -> ChatId(chatId)
 }
 
 fun IdChatIdentifier.toChatWithThreadId(threadId: MessageThreadId) = IdChatIdentifier(chatId, threadId)
+fun IdChatIdentifier.toBusinessChatId(businessConnectionId: BusinessConnectionId) = IdChatIdentifier(chatId, businessConnectionId)
 
 /**
  * https://core.telegram.org/bots/api#formatting-options
@@ -145,14 +163,22 @@ object FullChatIdentifierSerializer : KSerializer<ChatIdentifier> {
             ChatId(RawChatId(it))
         } ?:let {
             val splitted = id.content.split("/")
-            if (splitted.size == 2) {
+            when (splitted.size) {
+                2 -> {
                     val (chatId, threadId) = splitted
                     ChatIdWithThreadId(
                         chatId.toLongOrNull() ?.let(::RawChatId) ?: return@let null,
                         threadId.toLongOrNull() ?.let(::MessageThreadId) ?: return@let null
                     )
-            } else {
+                }
-                null
+                3 -> {
+                    val (chatId, _, businessConnectionId) = splitted
+                    BusinessChatId(
+                        chatId.toLongOrNull() ?.let(::RawChatId) ?: return@let null,
+                        businessConnectionId.let(::BusinessConnectionId) ?: return@let null
+                    )
+                }
+                else -> null
             }
         } ?: id.content.let {
             if (!it.startsWith("@")) {
@@ -167,6 +193,7 @@ object FullChatIdentifierSerializer : KSerializer<ChatIdentifier> {
         when (value) {
             is ChatId -> encoder.encodeLong(value.chatId.long)
             is ChatIdWithThreadId -> encoder.encodeString("${value.chatId}/${value.threadId}")
+            is BusinessChatId -> encoder.encodeString("${value.chatId}//${value.businessId}")
             is Username -> encoder.encodeString(value.full)
         }
     }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/business_connection/BusinessConnectionId.kt

@@ -7,4 +7,8 @@ import kotlin.jvm.JvmInline
 @JvmInline
 value class BusinessConnectionId(
     val string: String
-)
+) {
+    override fun toString(): String {
+        return string
+    }
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/Abstracts.kt

@@ -16,6 +16,12 @@ sealed interface PrivateChat : Chat, UsernameChat {
     val lastName: String
 }
 
+@Serializable(ChatSerializer::class)
+sealed interface BusinessChat : Chat {
+    override val id: BusinessChatId
+    val original: PrivateChat
+}
+
 @Serializable(ChatSerializer::class)
 sealed interface PublicChat : Chat {
     val title: String

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/ChatSerializers.kt

@@ -1,6 +1,7 @@
 package dev.inmo.tgbotapi.types.chat
 
 import dev.inmo.tgbotapi.types.*
+import dev.inmo.tgbotapi.types.business_connection.BusinessConnectionId
 import dev.inmo.tgbotapi.utils.RiskFeature
 import dev.inmo.tgbotapi.utils.nonstrictJsonFormat
 import kotlinx.serialization.*
@@ -103,10 +104,17 @@ object PreviewChatSerializer : KSerializer<PreviewChat> {
 
         val type = decodedJson[typeField] ?.jsonPrimitive ?.content ?.asChatType ?: error("Field $typeField must be presented, but absent in $decodedJson")
         val isForum = decodedJson[isForumField] ?.jsonPrimitive ?.booleanOrNull == true
+        val isBusiness = decodedJson[chatIdField] ?.jsonPrimitive ?.contentOrNull ?.contains("//") == true
 
         return when (type) {
             ChatType.Sender -> formatter.decodeFromJsonElement(PrivateChatImpl.serializer(), decodedJson)
-            ChatType.Private -> formatter.decodeFromJsonElement(PrivateChatImpl.serializer(), decodedJson)
+            ChatType.Private -> {
+                if (isBusiness) {
+                    formatter.decodeFromJsonElement(BusinessChatImpl.serializer(), decodedJson)
+                } else {
+                    formatter.decodeFromJsonElement(PrivateChatImpl.serializer(), decodedJson)
+                }
+            }
             ChatType.Group -> formatter.decodeFromJsonElement(GroupChatImpl.serializer(), decodedJson)
             ChatType.Supergroup -> if (isForum) {
                 formatter.decodeFromJsonElement(ForumChatImpl.serializer(), decodedJson)
@@ -125,6 +133,7 @@ object PreviewChatSerializer : KSerializer<PreviewChat> {
     override fun serialize(encoder: Encoder, value: PreviewChat) {
         when (value) {
             is PrivateChatImpl -> PrivateChatImpl.serializer().serialize(encoder, value)
+            is BusinessChatImpl -> BusinessChatImpl.serializer().serialize(encoder, value)
             is GroupChatImpl -> GroupChatImpl.serializer().serialize(encoder, value)
             is SupergroupChatImpl -> SupergroupChatImpl.serializer().serialize(encoder, value)
             is ForumChatImpl -> ForumChatImpl.serializer().serialize(encoder, value)
@@ -190,6 +199,19 @@ sealed class ExtendedChatSerializer : KSerializer<ExtendedChat> {
             }
         }
     }
+    class BasedOnBusinessConnection(private val businessConnectionId: BusinessConnectionId) : ExtendedChatSerializer() {
+        override fun deserialize(decoder: Decoder): ExtendedChat {
+            return super.deserialize(decoder).let {
+                if (it is ExtendedPrivateChatImpl) {
+                    it.copy(
+                        id = (it.id as? BusinessChatId) ?: BusinessChatId(it.id.chatId, businessConnectionId)
+                    )
+                } else {
+                    it
+                }
+            }
+        }
+    }
 
     companion object : ExtendedChatSerializer()
 }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/ExtendedAbstracts.kt

@@ -93,3 +93,8 @@ sealed interface ExtendedForumChat : ExtendedSupergroupChat, ForumChat
 sealed interface ExtendedChatWithUsername : UsernameChat, ExtendedChat {
     val activeUsernames: List<Username>
 }
+
+@Serializable(ExtendedChatSerializer.Companion::class)
+sealed interface ExtendedBusinessChat : BusinessChat, ExtendedChat {
+    override val original: ExtendedPrivateChat
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/Impls.kt

@@ -30,6 +30,15 @@ data class PrivateChatImpl(
     override val lastName: String = ""
 ) : PreviewPrivateChat
 
+@Serializable
+@RiskFeature("This class is a subject of changes. It is better to use PrivateChat due")
+data class BusinessChatImpl(
+    @SerialName(idField)
+    override val id: BusinessChatId,
+    @SerialName(firstNameField)
+    override val original: PreviewPrivateChat
+) : PreviewBusinessChat
+
 @Serializable
 @RiskFeature("This class is a subject of changes. It is better to use SupergroupChat due")
 data class SupergroupChatImpl(

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/PreviewAbstracts.kt

@@ -11,6 +11,9 @@ sealed interface PreviewUsernameChat : PreviewChat, UsernameChat
 @Serializable(PreviewChatSerializer::class)
 sealed interface PreviewPrivateChat : PreviewUsernameChat, PrivateChat
 
+@Serializable(PreviewChatSerializer::class)
+sealed interface PreviewBusinessChat : BusinessChat, PreviewChat
+
 @Serializable(PreviewChatSerializer::class)
 sealed interface PreviewPublicChat : PreviewChat, PublicChat