add support of PreparedKeyboardButton and savePreparedKeyboardButton

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/SavePreparedKeyboardButton.kt

@@ -0,0 +1,40 @@
+package dev.inmo.tgbotapi.requests
+
+import dev.inmo.kslog.common.w
+import dev.inmo.tgbotapi.requests.abstracts.SimpleRequest
+import dev.inmo.tgbotapi.types.ChatId
+import dev.inmo.tgbotapi.types.allowedToSavePreparedKeyboardButtons
+import dev.inmo.tgbotapi.types.buttonField
+import dev.inmo.tgbotapi.types.buttons.KeyboardButton
+import dev.inmo.tgbotapi.types.buttons.PreparedKeyboardButton
+import dev.inmo.tgbotapi.types.userIdField
+import dev.inmo.tgbotapi.utils.DefaultKTgBotAPIKSLog
+import kotlinx.serialization.DeserializationStrategy
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.SerializationStrategy
+
+@Serializable
+data class SavePreparedKeyboardButton(
+    @SerialName(userIdField)
+    val userId: ChatId,
+    @SerialName(buttonField)
+    val button: KeyboardButton
+) : SimpleRequest<PreparedKeyboardButton> {
+    override val resultDeserializer: DeserializationStrategy<PreparedKeyboardButton>
+        get() = PreparedKeyboardButton.serializer()
+    override val requestSerializer: SerializationStrategy<*>
+        get() = serializer()
+
+    override fun method(): String = "savePreparedKeyboardButton"
+
+    init {
+        if (button::class !in allowedToSavePreparedKeyboardButtons) {
+            DefaultKTgBotAPIKSLog.w {
+                "According to https://core.telegram.org/bots/api#savepreparedkeyboardbutton it is disallowed to use " +
+                        "anything except request_users, request_chat, or request_managed_bot, but you passed $button " +
+                        "which is not instance of any allowed buttons type"
+            }
+        }
+    }
+}

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

@@ -1,9 +1,14 @@
 package dev.inmo.tgbotapi.types
 
+import dev.inmo.tgbotapi.types.buttons.KeyboardButton
+import dev.inmo.tgbotapi.types.buttons.RequestChatKeyboardButton
+import dev.inmo.tgbotapi.types.buttons.RequestManagedBotKeyboardButton
+import dev.inmo.tgbotapi.types.buttons.RequestUserKeyboardButton
 import dev.inmo.tgbotapi.types.location.LiveLocation
 import dev.inmo.tgbotapi.utils.BuiltinMimeTypes
 import kotlinx.serialization.Serializable
 import kotlin.jvm.JvmInline
+import kotlin.reflect.KClass
 
 
 typealias ForwardSignature = String
@@ -122,6 +127,12 @@ val cloudStorageValueLimit = 0 .. 4096
 val cloudStorageKeyRegex = Regex("[A-Za-z0-9_-]{${cloudStorageKeyLimit.first},${cloudStorageKeyLimit.last}}")
 val cloudStorageValueRegex = Regex(".{${cloudStorageValueLimit.first},${cloudStorageValueLimit.last}}")
 
+val allowedToSavePreparedKeyboardButtons: Set<KClass<out KeyboardButton>> = setOf(
+    RequestUserKeyboardButton::class,
+    RequestChatKeyboardButton::class,
+    RequestManagedBotKeyboardButton::class,
+)
+
 // Made as lazy for correct work in K/JS
 val telegramInlineModeGifPermittedMimeTypes by lazy {
     listOf(

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/PreparedKeyboardButton.kt

@@ -0,0 +1,11 @@
+package dev.inmo.tgbotapi.types.buttons
+
+import dev.inmo.tgbotapi.types.idField
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class PreparedKeyboardButton(
+    @SerialName(idField)
+    val id: PreparedKeyboardId
+)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/PreparedKeyboardId.kt

@@ -0,0 +1,10 @@
+package dev.inmo.tgbotapi.types.buttons
+
+import kotlinx.serialization.Serializable
+import kotlin.jvm.JvmInline
+
+@Serializable
+@JvmInline
+value class PreparedKeyboardId(
+    val string: String
+)