extend polls

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## 0.23.0 TelegramBotAPI 4.6
 
+* `Poll` now is sealed class
+    * `RegularPoll` type was added to represent polls with type `regular`
+    * `QuizPoll` type was added to represent polls with type `quiz`
+    * `UnknownPollType` type was added to represent polls which are unknown in current version
+
 ## 0.22.0
 
 * **`KtorCallFactory` must return `HttpStatement` instead of `HttpClientCall`**

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

@@ -90,6 +90,9 @@ const val lastErrorDateField = "last_error_date"
 const val lastErrorMessageField = "last_error_message"
 const val votesCountField = "voter_count"
 const val isClosedField = "is_closed"
+const val correctOptionIdField = "correct_option_id"
+const val allowsMultipleAnswersField = "allows_multiple_answers"
+const val isAnonymousField = "is_anonymous"
 const val loginUrlField = "login_url"
 const val forwardTextField = "forward_text"
 const val botUsernameField = "bot_username"
@@ -273,3 +276,6 @@ const val mediaField = "media"
 const val disableEditMessageField = "disable_edit_message"
 const val scoreField = "score"
 const val forceField = "force"
+
+const val regularPollType = "regular"
+const val quizPollType = "quiz"

src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/polls/Poll.kt

@@ -1,17 +1,108 @@
 package com.github.insanusmokrassar.TelegramBotAPI.types.polls
 
 import com.github.insanusmokrassar.TelegramBotAPI.types.*
-import kotlinx.serialization.SerialName
-import kotlinx.serialization.Serializable
+import kotlinx.serialization.*
+import kotlinx.serialization.internal.ArrayListSerializer
+import kotlinx.serialization.json.*
+
+@Serializable(PollSerializer::class)
+sealed class Poll {
+    abstract val id: PollIdentifier
+    abstract val question: String
+    abstract val options: List<PollOption>
+    abstract val closed: Boolean
+    abstract val isAnonymous: Boolean
+}
 
 @Serializable
-data class Poll(
+data class UnknownPollType(
     @SerialName(idField)
-    val id: PollIdentifier,
+    override val id: PollIdentifier,
     @SerialName(questionField)
-    val question: String,
+    override val question: String,
     @SerialName(optionsField)
-    val options: List<PollOption>,
+    override val options: List<PollOption>,
     @SerialName(isClosedField)
-    val closed: Boolean = false
+    override val closed: Boolean = false,
+    @SerialName(isAnonymousField)
+    override val isAnonymous: Boolean = false,
+    val raw: String
+) : Poll()
+
+@Serializable
+data class RegularPoll(
+    @SerialName(idField)
+    override val id: PollIdentifier,
+    @SerialName(questionField)
+    override val question: String,
+    @SerialName(optionsField)
+    override val options: List<PollOption>,
+    @SerialName(isClosedField)
+    override val closed: Boolean = false,
+    @SerialName(isAnonymousField)
+    override val isAnonymous: Boolean = false,
+    @SerialName(allowsMultipleAnswersField)
+    val allowMultipleAnswers: Boolean = false
+) : Poll()
+
+@Serializable
+data class QuizPoll(
+    @SerialName(idField)
+    override val id: PollIdentifier,
+    @SerialName(questionField)
+    override val question: String,
+    @SerialName(optionsField)
+    override val options: List<PollOption>,
+    @SerialName(isClosedField)
+    override val closed: Boolean = false,
+    @SerialName(isAnonymousField)
+    override val isAnonymous: Boolean = false,
+    @SerialName(correctOptionIdField)
+    val correctOptionId: Boolean = false
+) : Poll()
+
+@Serializer(Poll::class)
+internal object PollSerializer : KSerializer<Poll> {
+    private val pollOptionsSerializer = ArrayListSerializer(PollOption.serializer())
+    override fun deserialize(decoder: Decoder): Poll {
+        val asJson = JsonObjectSerializer.deserialize(decoder)
+
+        return when (asJson.getPrimitive(typeField).content) {
+            regularPollType -> Json.nonstrict.fromJson(
+                RegularPoll.serializer(),
+                asJson
             )
+            quizPollType -> Json.nonstrict.fromJson(
+                QuizPoll.serializer(),
+                asJson
+            )
+            else -> UnknownPollType(
+                asJson.getPrimitive(idField).content,
+                asJson.getPrimitive(questionField).content,
+                Json.nonstrict.fromJson(
+                    pollOptionsSerializer,
+                    asJson.getArray(optionsField)
+                ),
+                asJson.getPrimitiveOrNull(isClosedField) ?.booleanOrNull ?: false,
+                asJson.getPrimitiveOrNull(isAnonymousField) ?.booleanOrNull ?: true,
+                asJson.toString()
+            )
+        }
+    }
+
+    override fun serialize(encoder: Encoder, obj: Poll) {
+        val asJson = when (obj) {
+            is RegularPoll -> Json.nonstrict.toJson(RegularPoll.serializer(), obj)
+            is QuizPoll -> Json.nonstrict.toJson(QuizPoll.serializer(), obj)
+            is UnknownPollType -> throw IllegalArgumentException("Currently unable to correctly serialize object of poll $obj")
+        }
+        val resultJson = JsonObject(
+            asJson.jsonObject + (typeField to when (obj) {
+                is RegularPoll -> JsonPrimitive(regularPollType)
+                is QuizPoll -> JsonPrimitive(quizPollType)
+                is UnknownPollType -> throw IllegalArgumentException("Currently unable to correctly serialize object of poll $obj")
+            })
+        )
+        JsonObjectSerializer.serialize(encoder, resultJson)
+    }
+}