rewrite work with Bot class

CHANGELOG.md

@@ -29,8 +29,10 @@
         * `QuizKeyboardButtonPollType`
 * `User` now is sealed class
     * `CommonUser` was added as representation of default `User`
-    * `Bot` was added as representation of bot user
-    * `GetMe` now return `Bot` object
+    * `Bot` was added as representation of bot user (it is sealed class)
+        * `ExtendedBot` with additional info
+        * `CommonBot` with simple info
+    * `GetMe` now return `ExtendedBot` object
     * Now extension `javaLocale` is extension for `CommonUser`
 
 ## 0.22.0

README.md

@@ -10,7 +10,7 @@ moments are describing by official [Telegram Bot API](https://core.telegram.org/
 
 ## Compatibility
 
-This version compatible with [31th of December 2019 update of TelegramBotAPI (version 4.5)](https://core.telegram.org/bots/api#december-31-2019).
+This version compatible with [23th of January 2020 update of TelegramBotAPI (version 4.6)](https://core.telegram.org/bots/api#january-23-2020).
 There is Telegram Passport API exception of implemented functionality, which was presented in
 [August 2018 update of TelegramBotAPI](https://core.telegram.org/bots/api#august-27-2018) update. It will be implemented
 as soon as possible. All APIs that are not included are presented
@@ -96,10 +96,9 @@ val requestsExecutor: RequestsExecutor = ...
 requestsExecutor.execute(GetMe())
 ``` 
 
-The result type of [GetMe](https://github.com/InsanusMokrassar/TelegramBotAPI/blob/master/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/requests/GetMe.kt) request is
-[User](https://github.com/InsanusMokrassar/TelegramBotAPI/blob/master/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/User.kt). In fact, in this result must contain
-`isBot` equal to `true` always.
-
+The result type of [GetMe](https://github.com/InsanusMokrassar/TelegramBotAPI/blob/master/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/requests/GetMe.kt)
+request is
+[ExtendedBot](https://github.com/InsanusMokrassar/TelegramBotAPI/blob/master/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/User.kt).
 
 ### RequestsExecutor
 

src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/requests/GetMe.kt

@@ -1,15 +1,14 @@
 package com.github.insanusmokrassar.TelegramBotAPI.requests
 
 import com.github.insanusmokrassar.TelegramBotAPI.requests.abstracts.SimpleRequest
-import com.github.insanusmokrassar.TelegramBotAPI.types.Bot
-import com.github.insanusmokrassar.TelegramBotAPI.types.User
+import com.github.insanusmokrassar.TelegramBotAPI.types.*
 import kotlinx.serialization.*
 
 @Serializable
-class GetMe : SimpleRequest<Bot> {
+class GetMe : SimpleRequest<ExtendedBot> {
     override fun method(): String = "getMe"
-    override val resultDeserializer: DeserializationStrategy<Bot>
-        get() = Bot.serializer()
+    override val resultDeserializer: DeserializationStrategy<ExtendedBot>
+        get() = ExtendedBot.serializer()
     override val requestSerializer: SerializationStrategy<*>
         get() = serializer()
 }

src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/User.kt

@@ -21,8 +21,25 @@ data class CommonUser(
     val languageCode: String? = null
 ) : User()
 
+@Serializable(UserSerializer::class)
+sealed class Bot : User()
+
 @Serializable
-data class Bot(
+data class CommonBot(
+    override val id: ChatId,
+    @SerialName(firstNameField)
+    override val firstName: String,
+    @SerialName(lastNameField)
+    override val lastName: String = "",
+    @SerialName(usernameField)
+    override val username: Username? = null
+) : Bot() {
+    @SerialName(isBotField)
+    private val isBot = true
+}
+
+@Serializable
+data class ExtendedBot(
     override val id: ChatId,
     @SerialName(firstNameField)
     override val firstName: String,
@@ -36,11 +53,12 @@ data class Bot(
     val canReadAllGroupMessages: Boolean = false,
     @SerialName(supportInlineQueriesField)
     val supportsInlineQueries: Boolean = false
-) : User() {
+) : Bot() {
     @SerialName(isBotField)
     private val isBot = true
 }
 
+
 @Serializer(User::class)
 internal object UserSerializer : KSerializer<User> {
     override fun deserialize(decoder: Decoder): User {
@@ -51,17 +69,30 @@ internal object UserSerializer : KSerializer<User> {
                 CommonUser.serializer(),
                 asJson
             )
-            else -> Json.nonstrict.fromJson(
-                Bot.serializer(),
-                asJson
-            )
+            else -> {
+                if ((asJson.get(canJoinGroupsField)
+                    ?: asJson.get(canReadAllGroupMessagesField)
+                    ?: asJson.get(supportInlineQueriesField)) != null
+                ) {
+                    Json.nonstrict.fromJson(
+                        ExtendedBot.serializer(),
+                        asJson
+                    )
+                } else {
+                    Json.nonstrict.fromJson(
+                        CommonBot.serializer(),
+                        asJson
+                    )
+                }
+            }
         }
     }
 
     override fun serialize(encoder: Encoder, obj: User) {
         when (obj) {
             is CommonUser -> CommonUser.serializer().serialize(encoder, obj)
-            is Bot -> Bot.serializer().serialize(encoder, obj)
+            is CommonBot -> CommonBot.serializer().serialize(encoder, obj)
+            is ExtendedBot -> ExtendedBot.serializer().serialize(encoder, obj)
         }
     }
 }