add support of ChatBackground

tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/expectations/WaitEventAction.kt

@@ -5,6 +5,7 @@ package dev.inmo.tgbotapi.extensions.behaviour_builder.expectations
 import dev.inmo.tgbotapi.extensions.behaviour_builder.BehaviourContext
 import dev.inmo.tgbotapi.extensions.utils.*
 import dev.inmo.tgbotapi.requests.abstracts.Request
+import dev.inmo.tgbotapi.types.chat.ChatBackground
 import dev.inmo.tgbotapi.types.message.ChatEvents.*
 import dev.inmo.tgbotapi.types.message.ChatEvents.abstracts.*
 import dev.inmo.tgbotapi.types.message.ChatEvents.forum.ForumTopicClosed
@@ -219,3 +220,8 @@ suspend fun BehaviourContext.waitChatBoostAdded(
     initRequest: Request<*>? = null,
     errorFactory: NullableRequestBuilder<*> = { null }
 ) = waitEvents<ChatBoostAdded>(initRequest, errorFactory)
+
+suspend fun BehaviourContext.waitChatBackgroundSet(
+    initRequest: Request<*>? = null,
+    errorFactory: NullableRequestBuilder<*> = { null }
+) = waitEvents<ChatBackground>(initRequest, errorFactory)

tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/expectations/WaitEventActionMessages.kt

@@ -5,6 +5,7 @@ package dev.inmo.tgbotapi.extensions.behaviour_builder.expectations
 import dev.inmo.tgbotapi.extensions.behaviour_builder.BehaviourContext
 import dev.inmo.tgbotapi.extensions.utils.*
 import dev.inmo.tgbotapi.requests.abstracts.Request
+import dev.inmo.tgbotapi.types.chat.ChatBackground
 import dev.inmo.tgbotapi.types.message.ChatEvents.*
 import dev.inmo.tgbotapi.types.message.ChatEvents.abstracts.*
 import dev.inmo.tgbotapi.types.message.ChatEvents.forum.ForumTopicClosed
@@ -213,3 +214,8 @@ suspend fun BehaviourContext.waitChatBoostAddedEventsMessages(
     initRequest: Request<*>? = null,
     errorFactory: NullableRequestBuilder<*> = { null }
 ) = waitEventsMessages<ChatBoostAdded>(initRequest, errorFactory)
+
+suspend fun BehaviourContext.waitChatBackgroundSetEventsMessages(
+    initRequest: Request<*>? = null,
+    errorFactory: NullableRequestBuilder<*> = { null }
+) = waitEventsMessages<ChatBackground>(initRequest, errorFactory)

tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/triggers_handling/EventTriggers.kt

@@ -10,6 +10,7 @@ import dev.inmo.tgbotapi.extensions.behaviour_builder.utils.marker_factories.Mar
 import dev.inmo.tgbotapi.extensions.behaviour_builder.utils.times
 import dev.inmo.tgbotapi.extensions.utils.baseSentMessageUpdateOrNull
 import dev.inmo.tgbotapi.extensions.utils.chatEventMessageOrNull
+import dev.inmo.tgbotapi.types.chat.ChatBackground
 import dev.inmo.tgbotapi.types.message.ChatEvents.*
 import dev.inmo.tgbotapi.types.message.ChatEvents.abstracts.*
 import dev.inmo.tgbotapi.types.message.ChatEvents.forum.ForumTopicClosed
@@ -844,3 +845,23 @@ suspend fun <BC : BehaviourContext> BC.onChatBoostAdded(
     markerFactory: MarkerFactory<in ChatEventMessage<ChatBoostAdded>, Any> = ByChatMessageMarkerFactory,
     scenarioReceiver: CustomBehaviourContextAndTypeReceiver<BC, Unit, ChatEventMessage<ChatBoostAdded>>
 ) = onEventWithCustomChatEventMessage(initialFilter, subcontextUpdatesFilter, markerFactory, scenarioReceiver)
+
+
+/**
+ * @param initialFilter This filter will be called to remove unnecessary data BEFORE [scenarioReceiver] call
+ * @param subcontextUpdatesFilter This filter will be applied to each update inside of [scenarioReceiver]. For example,
+ * this filter will be used if you will call [dev.inmo.tgbotapi.extensions.behaviour_builder.expectations.waitContentMessage].
+ * Use [dev.inmo.tgbotapi.extensions.behaviour_builder.BehaviourContextAndTwoTypesReceiver] function to create your own.
+ * Use [dev.inmo.tgbotapi.extensions.behaviour_builder.utils.plus] or [dev.inmo.tgbotapi.extensions.behaviour_builder.utils.times]
+ * to combinate several filters
+ * @param markerFactory Will be used to identify different "stream". [scenarioReceiver] will be called synchronously
+ * in one "stream". Output of [markerFactory] will be used as a key for "stream"
+ * @param scenarioReceiver Main callback which will be used to handle incoming data if [initialFilter] will pass that
+ * data
+ */
+suspend fun <BC : BehaviourContext> BC.onChatBackgroundSet(
+    initialFilter: SimpleFilter<ChatEventMessage<ChatBackground>>? = null,
+    subcontextUpdatesFilter: CustomBehaviourContextAndTwoTypesReceiver<BC, Boolean, ChatEventMessage<ChatBackground>, Update>? = MessageFilterByChat,
+    markerFactory: MarkerFactory<in ChatEventMessage<ChatBackground>, Any> = ByChatMessageMarkerFactory,
+    scenarioReceiver: CustomBehaviourContextAndTypeReceiver<BC, Unit, ChatEventMessage<ChatBackground>>
+) = onEventWithCustomChatEventMessage(initialFilter, subcontextUpdatesFilter, markerFactory, scenarioReceiver)

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

@@ -0,0 +1,128 @@
+package dev.inmo.tgbotapi.types
+
+import dev.inmo.micro_utils.colors.common.HEXAColor
+import dev.inmo.tgbotapi.utils.IntRGB24HEXAColorSerializer
+import dev.inmo.tgbotapi.utils.extractDataAndJson
+import dev.inmo.tgbotapi.utils.internal.ClassCastsIncluded
+import kotlinx.serialization.*
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonElement
+import kotlinx.serialization.json.decodeFromJsonElement
+
+@ClassCastsIncluded
+@Serializable(BackgroundFill.Companion::class)
+sealed interface BackgroundFill {
+    val type: String
+    val colors: List<HEXAColor>
+
+    @Serializable
+    data class Solid(
+        @SerialName(colorField)
+        @Serializable(IntRGB24HEXAColorSerializer::class)
+        val color: HEXAColor
+    ) : BackgroundFill {
+        @Transient
+        override val colors: List<HEXAColor> = listOf(color)
+        @EncodeDefault
+        @SerialName(typeField)
+        override val type: String = Companion.type
+
+        companion object {
+            const val type = "solid"
+        }
+    }
+    @Serializable
+    data class Gradient(
+        @SerialName(topColorField)
+        @Serializable(IntRGB24HEXAColorSerializer::class)
+        val topColor: HEXAColor,
+        @SerialName(bottomColorField)
+        @Serializable(IntRGB24HEXAColorSerializer::class)
+        val bottomColor: HEXAColor,
+        @SerialName(rotationAngleField)
+        val rotationAngle: Short,
+    ) : BackgroundFill {
+        @Transient
+        override val colors: List<HEXAColor> = listOf(topColor, bottomColor)
+        @EncodeDefault
+        @SerialName(typeField)
+        override val type: String = Companion.type
+        companion object {
+            const val type = "gradient"
+        }
+    }
+    @Serializable
+    data class FreeformGradient(
+        @SerialName(colorsField)
+        override val colors: List<@Serializable(IntRGB24HEXAColorSerializer::class) HEXAColor>
+    ) : BackgroundFill {
+        @EncodeDefault
+        @SerialName(typeField)
+        override val type: String = Companion.type
+
+        companion object {
+            const val type = "freeform_gradient"
+        }
+    }
+    @Serializable
+    data class Unknown(
+        override val type: String,
+        val raw: JsonElement?
+    ) : BackgroundFill {
+        @SerialName(colorsField)
+        override val colors: List<HEXAColor> = emptyList()
+    }
+
+    companion object : KSerializer<BackgroundFill> {
+        @Serializable
+        class RawBackgroundFill private constructor(
+            @SerialName(typeField)
+            val type: String,
+            @Serializable(IntRGB24HEXAColorSerializer::class)
+            val color: HEXAColor? = null,
+            @SerialName(topColorField)
+            @Serializable(IntRGB24HEXAColorSerializer::class)
+            val topColor: HEXAColor? = null,
+            @SerialName(bottomColorField)
+            @Serializable(IntRGB24HEXAColorSerializer::class)
+            val bottomColor: HEXAColor? = null,
+            @SerialName(rotationAngleField)
+            val rotationAngle: Short? = null,
+            @SerialName(colorsField)
+            val colors: List<@Serializable(IntRGB24HEXAColorSerializer::class) HEXAColor>? = null
+        )
+
+        private val serializer = RawBackgroundFill.serializer()
+        override val descriptor: SerialDescriptor
+            get() = serializer.descriptor
+
+        override fun deserialize(decoder: Decoder): BackgroundFill {
+            val (raw, json) = decoder.extractDataAndJson(serializer)
+            return when (raw.type) {
+                Solid.type -> Solid(color = raw.color ?: return Unknown(raw.type, json))
+                Gradient.type -> Gradient(
+                    topColor = raw.topColor ?: return Unknown(raw.type, json),
+                    bottomColor = raw.bottomColor ?: return Unknown(raw.type, json),
+                    rotationAngle = raw.rotationAngle ?: return Unknown(raw.type, json)
+                )
+                FreeformGradient.type -> FreeformGradient(raw.colors ?: return Unknown(raw.type, json))
+                else -> Unknown(raw.type, json)
+            }
+        }
+
+        override fun serialize(encoder: Encoder, value: BackgroundFill) {
+            when (value) {
+                is FreeformGradient -> FreeformGradient.serializer().serialize(encoder, value)
+                is Gradient -> Gradient.serializer().serialize(encoder, value)
+                is Solid -> Solid.serializer().serialize(encoder, value)
+                is Unknown -> value.raw ?.also {
+                    JsonElement.serializer().serialize(encoder, it)
+                } ?: Unknown.serializer().serialize(encoder, value)
+            }
+        }
+
+    }
+}

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

@@ -0,0 +1,180 @@
+package dev.inmo.tgbotapi.types
+
+import dev.inmo.micro_utils.common.Progress
+import dev.inmo.tgbotapi.types.files.DocumentFile
+import dev.inmo.tgbotapi.utils.IntProgress100Serializer
+import dev.inmo.tgbotapi.utils.extractDataAndJson
+import dev.inmo.tgbotapi.utils.internal.ClassCastsIncluded
+import kotlinx.serialization.EncodeDefault
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonElement
+
+@ClassCastsIncluded
+@Serializable(BackgroundType.Companion::class)
+sealed interface BackgroundType {
+    val type: String
+
+    sealed interface Movable : BackgroundType {
+        val isMoving: Boolean
+    }
+    sealed interface Dimmable : BackgroundType {
+        val darkThemeDimming: Progress
+    }
+    sealed interface Fillable : BackgroundType {
+        val fill: BackgroundFill
+    }
+    sealed interface WithDocument : BackgroundType {
+        val document: DocumentFile
+    }
+
+    @Serializable
+    data class Fill(
+        @SerialName(fillField)
+        override val fill: BackgroundFill,
+        @SerialName(darkThemeDimmingField)
+        @Serializable(IntProgress100Serializer::class)
+        override val darkThemeDimming: Progress
+    ) : Fillable, Dimmable {
+        @EncodeDefault
+        @SerialName(typeField)
+        override val type: String = Companion.type
+        companion object {
+            const val type: String = "fill"
+        }
+    }
+
+    @Serializable
+    data class Wallpaper(
+        @SerialName(documentField)
+        override val document: DocumentFile,
+        @SerialName(darkThemeDimmingField)
+        @Serializable(IntProgress100Serializer::class)
+        override val darkThemeDimming: Progress,
+        @SerialName(isBlurredField)
+        val isBlurred: Boolean = false,
+        @SerialName(isMovingField)
+        override val isMoving: Boolean = false
+    ) : WithDocument, Dimmable, Movable {
+        @EncodeDefault
+        @SerialName(typeField)
+        override val type: String = Companion.type
+        companion object {
+            const val type: String = "wallpaper"
+        }
+    }
+
+    @Serializable
+    data class Pattern(
+        @SerialName(documentField)
+        override val document: DocumentFile,
+        @SerialName(fillField)
+        override val fill: BackgroundFill,
+        @SerialName(intensityField)
+        @Serializable(IntProgress100Serializer::class)
+        val intensity: Progress,
+        @SerialName(isInvertedField)
+        val isInverted: Boolean = false,
+        @SerialName(isMovingField)
+        override val isMoving: Boolean = false
+    ) : WithDocument, Fillable, Movable {
+        @EncodeDefault
+        @SerialName(typeField)
+        override val type: String = Companion.type
+        companion object {
+            const val type: String = "pattern"
+        }
+    }
+
+    @Serializable
+    data class ChatTheme(
+        @SerialName(themeNameField)
+        val themeName: String
+    ): BackgroundType {
+        @EncodeDefault
+        @SerialName(typeField)
+        override val type: String = Companion.type
+        companion object {
+            const val type: String = "chat_theme"
+        }
+    }
+
+    @Serializable
+    data class Unknown(
+        @SerialName(typeField)
+        override val type: String,
+        val raw: JsonElement?
+    ): BackgroundType
+
+    companion object : KSerializer<BackgroundType> {
+        @Serializable
+        data class RawBackgroundType(
+            val type: String,
+            @SerialName(fillField)
+            val fill: BackgroundFill? = null,
+            @SerialName(darkThemeDimmingField)
+            @Serializable(IntProgress100Serializer::class)
+            val darkThemeDimming: Progress? = null,
+            @SerialName(documentField)
+            val document: DocumentFile? = null,
+            @SerialName(isBlurredField)
+            val isBlurred: Boolean = false,
+            @SerialName(isMovingField)
+            val isMoving: Boolean = false,
+            @SerialName(intensityField)
+            @Serializable(IntProgress100Serializer::class)
+            val intensity: Progress? = null,
+            @SerialName(isInvertedField)
+            val isInverted: Boolean = false,
+            @SerialName(themeNameField)
+            val themeName: String? = null
+        )
+
+        override val descriptor: SerialDescriptor
+            get() = RawBackgroundType.serializer().descriptor
+
+        override fun deserialize(decoder: Decoder): BackgroundType {
+            val (raw, json) = decoder.extractDataAndJson(RawBackgroundType.serializer())
+            val unknown by lazy { Unknown(raw.type, json) }
+            return when (raw.type) {
+                Fill.type -> Fill(
+                    raw.fill ?: return unknown,
+                    raw.darkThemeDimming ?: return unknown
+                )
+                Wallpaper.type -> Wallpaper(
+                    document = raw.document ?: return unknown,
+                    darkThemeDimming = raw.darkThemeDimming ?: return unknown,
+                    isBlurred = raw.isBlurred,
+                    isMoving = raw.isMoving
+                )
+                Pattern.type -> Pattern(
+                    document = raw.document ?: return unknown,
+                    fill = raw.fill ?: return unknown,
+                    intensity = raw.intensity ?: return unknown,
+                    isInverted = raw.isInverted,
+                    isMoving = raw.isMoving
+                )
+                ChatTheme.type -> ChatTheme(
+                    raw.themeName ?: return unknown
+                )
+                else -> unknown
+            }
+        }
+
+        override fun serialize(encoder: Encoder, value: BackgroundType) {
+            when (value) {
+                is ChatTheme -> ChatTheme.serializer().serialize(encoder, value)
+                is Fill -> Fill.serializer().serialize(encoder, value)
+                is Wallpaper -> Wallpaper.serializer().serialize(encoder, value)
+                is Pattern -> Pattern.serializer().serialize(encoder, value)
+                is Unknown -> value.raw ?.also {
+                    JsonElement.serializer().serialize(encoder, it)
+                } ?: Unknown.serializer().serialize(encoder, value)
+            }
+        }
+    }
+}

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

@@ -604,6 +604,20 @@ const val businessIntroField = "business_intro"
 const val businessLocationField = "business_location"
 const val businessOpeningHoursField = "business_opening_hours"
 
+const val colorField = "color"
+const val colorsField = "colors"
+const val topColorField = "top_color"
+const val bottomColorField = "bottom_color"
+const val rotationAngleField = "rotation_angle"
+
+const val fillField = "fill"
+const val darkThemeDimmingField = "dark_theme_dimming"
+const val isBlurredField = "is_blurred"
+const val isInvertedField = "is_inverted"
+const val isMovingField = "is_moving"
+const val intensityField = "intensity"
+const val themeNameField = "theme_name"
+
 const val dayField = "day"
 const val monthField = "month"
 const val yearField = "year"

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

@@ -0,0 +1,13 @@
+package dev.inmo.tgbotapi.types.chat
+
+import dev.inmo.tgbotapi.types.BackgroundType
+import dev.inmo.tgbotapi.types.message.ChatEvents.abstracts.CommonEvent
+import dev.inmo.tgbotapi.types.typeField
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ChatBackground(
+    @SerialName(typeField)
+    val type: BackgroundType
+) : CommonEvent

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/RawMessage.kt

@@ -125,6 +125,9 @@ internal data class RawMessage(
     // Boost added to groups
     private val boost_added: ChatBoostAdded? = null,
 
+    // Chat background has been changed
+    private val chat_background_set: ChatBackground? = null,
+
     // AutoDelete Message time changed
     private val message_auto_delete_timer_changed: MessageAutoDeleteTimerChanged? = null,
 
@@ -260,6 +263,7 @@ internal data class RawMessage(
             giveaway_winners is GiveawayPrivateResults -> giveaway_winners
             giveaway_completed != null -> giveaway_completed
             boost_added != null -> boost_added
+            chat_background_set != null -> chat_background_set
             else -> null
         }
     }

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/ExtractDataAndJsonFromDecoder.kt

@@ -0,0 +1,15 @@
+package dev.inmo.tgbotapi.utils
+
+import kotlinx.serialization.DeserializationStrategy
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonElement
+
+fun <T> Decoder.extractDataAndJson(serializer: DeserializationStrategy<T>): Pair<T, JsonElement?> {
+    return if (this is JsonDecoder) {
+        val raw = decodeJsonElement()
+        json.decodeFromJsonElement(serializer, raw) to raw
+    } else {
+        serializer.deserialize(this) to null
+    }
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/IntProgress100Serializer.kt

@@ -0,0 +1,27 @@
+package dev.inmo.tgbotapi.utils
+
+import dev.inmo.micro_utils.common.Progress
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+
+object IntProgress100Serializer : KSerializer<Progress> {
+    override val descriptor: SerialDescriptor
+        get() = Int.serializer().descriptor
+
+    override fun deserialize(decoder: Decoder): Progress {
+        return Progress(
+            decoder.decodeInt(),
+            100
+        )
+    }
+
+    override fun serialize(encoder: Encoder, value: Progress) {
+        encoder.encodeInt(
+            value.of100Int
+        )
+    }
+
+}

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/IntRGB24HEXAColorSerializer.kt

@@ -0,0 +1,22 @@
+package dev.inmo.tgbotapi.utils
+
+import dev.inmo.micro_utils.colors.common.HEXAColor
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+
+object IntRGB24HEXAColorSerializer : KSerializer<HEXAColor> {
+    override val descriptor: SerialDescriptor
+        get() = Int.serializer().descriptor
+
+    override fun deserialize(decoder: Decoder): HEXAColor {
+        val raw = decoder.decodeInt()
+        return HEXAColor(raw.shl(2).toUInt() + 0xffu)
+    }
+
+    override fun serialize(encoder: Encoder, value: HEXAColor) {
+        encoder.encodeInt(value.rgbInt)
+    }
+}

tgbotapi.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/ClassCastsNew.kt

@@ -16,6 +16,8 @@ import dev.inmo.tgbotapi.requests.answers.InlineQueryResultsButton
 import dev.inmo.tgbotapi.requests.send.payments.CreateInvoiceLink
 import dev.inmo.tgbotapi.requests.send.payments.SendInvoice
 import dev.inmo.tgbotapi.requests.stickers.InputSticker
+import dev.inmo.tgbotapi.types.BackgroundFill
+import dev.inmo.tgbotapi.types.BackgroundType
 import dev.inmo.tgbotapi.types.BusinessChatId
 import dev.inmo.tgbotapi.types.ChatId
 import dev.inmo.tgbotapi.types.ChatIdWithThreadId
@@ -116,6 +118,7 @@ import dev.inmo.tgbotapi.types.chat.Bot
 import dev.inmo.tgbotapi.types.chat.BusinessChat
 import dev.inmo.tgbotapi.types.chat.ChannelChat
 import dev.inmo.tgbotapi.types.chat.Chat
+import dev.inmo.tgbotapi.types.chat.ChatBackground
 import dev.inmo.tgbotapi.types.chat.ChatJoinRequest
 import dev.inmo.tgbotapi.types.chat.ChatMessageReactionUpdated
 import dev.inmo.tgbotapi.types.chat.CommonBot
@@ -1088,6 +1091,124 @@ public inline fun InputSticker.regularOrThrow(): InputSticker.WithKeywords.Regul
 public inline fun <T> InputSticker.ifRegular(block: (InputSticker.WithKeywords.Regular) -> T): T? =
     regularOrNull() ?.let(block)
 
+public inline fun BackgroundFill.freeformGradientOrNull(): BackgroundFill.FreeformGradient? = this
+    as? dev.inmo.tgbotapi.types.BackgroundFill.FreeformGradient
+
+public inline fun BackgroundFill.freeformGradientOrThrow(): BackgroundFill.FreeformGradient = this
+    as dev.inmo.tgbotapi.types.BackgroundFill.FreeformGradient
+
+public inline fun <T>
+    BackgroundFill.ifFreeformGradient(block: (BackgroundFill.FreeformGradient) -> T): T? =
+    freeformGradientOrNull() ?.let(block)
+
+public inline fun BackgroundFill.gradientOrNull(): BackgroundFill.Gradient? = this as?
+    dev.inmo.tgbotapi.types.BackgroundFill.Gradient
+
+public inline fun BackgroundFill.gradientOrThrow(): BackgroundFill.Gradient = this as
+    dev.inmo.tgbotapi.types.BackgroundFill.Gradient
+
+public inline fun <T> BackgroundFill.ifGradient(block: (BackgroundFill.Gradient) -> T): T? =
+    gradientOrNull() ?.let(block)
+
+public inline fun BackgroundFill.solidOrNull(): BackgroundFill.Solid? = this as?
+    dev.inmo.tgbotapi.types.BackgroundFill.Solid
+
+public inline fun BackgroundFill.solidOrThrow(): BackgroundFill.Solid = this as
+    dev.inmo.tgbotapi.types.BackgroundFill.Solid
+
+public inline fun <T> BackgroundFill.ifSolid(block: (BackgroundFill.Solid) -> T): T? = solidOrNull()
+    ?.let(block)
+
+public inline fun BackgroundFill.unknownOrNull(): BackgroundFill.Unknown? = this as?
+    dev.inmo.tgbotapi.types.BackgroundFill.Unknown
+
+public inline fun BackgroundFill.unknownOrThrow(): BackgroundFill.Unknown = this as
+    dev.inmo.tgbotapi.types.BackgroundFill.Unknown
+
+public inline fun <T> BackgroundFill.ifUnknown(block: (BackgroundFill.Unknown) -> T): T? =
+    unknownOrNull() ?.let(block)
+
+public inline fun BackgroundType.chatThemeOrNull(): BackgroundType.ChatTheme? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.ChatTheme
+
+public inline fun BackgroundType.chatThemeOrThrow(): BackgroundType.ChatTheme = this as
+    dev.inmo.tgbotapi.types.BackgroundType.ChatTheme
+
+public inline fun <T> BackgroundType.ifChatTheme(block: (BackgroundType.ChatTheme) -> T): T? =
+    chatThemeOrNull() ?.let(block)
+
+public inline fun BackgroundType.dimmableOrNull(): BackgroundType.Dimmable? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.Dimmable
+
+public inline fun BackgroundType.dimmableOrThrow(): BackgroundType.Dimmable = this as
+    dev.inmo.tgbotapi.types.BackgroundType.Dimmable
+
+public inline fun <T> BackgroundType.ifDimmable(block: (BackgroundType.Dimmable) -> T): T? =
+    dimmableOrNull() ?.let(block)
+
+public inline fun BackgroundType.fillOrNull(): BackgroundType.Fill? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.Fill
+
+public inline fun BackgroundType.fillOrThrow(): BackgroundType.Fill = this as
+    dev.inmo.tgbotapi.types.BackgroundType.Fill
+
+public inline fun <T> BackgroundType.ifFill(block: (BackgroundType.Fill) -> T): T? = fillOrNull()
+    ?.let(block)
+
+public inline fun BackgroundType.wallpaperOrNull(): BackgroundType.Wallpaper? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.Wallpaper
+
+public inline fun BackgroundType.wallpaperOrThrow(): BackgroundType.Wallpaper = this as
+    dev.inmo.tgbotapi.types.BackgroundType.Wallpaper
+
+public inline fun <T> BackgroundType.ifWallpaper(block: (BackgroundType.Wallpaper) -> T): T? =
+    wallpaperOrNull() ?.let(block)
+
+public inline fun BackgroundType.fillableOrNull(): BackgroundType.Fillable? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.Fillable
+
+public inline fun BackgroundType.fillableOrThrow(): BackgroundType.Fillable = this as
+    dev.inmo.tgbotapi.types.BackgroundType.Fillable
+
+public inline fun <T> BackgroundType.ifFillable(block: (BackgroundType.Fillable) -> T): T? =
+    fillableOrNull() ?.let(block)
+
+public inline fun BackgroundType.patternOrNull(): BackgroundType.Pattern? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.Pattern
+
+public inline fun BackgroundType.patternOrThrow(): BackgroundType.Pattern = this as
+    dev.inmo.tgbotapi.types.BackgroundType.Pattern
+
+public inline fun <T> BackgroundType.ifPattern(block: (BackgroundType.Pattern) -> T): T? =
+    patternOrNull() ?.let(block)
+
+public inline fun BackgroundType.movableOrNull(): BackgroundType.Movable? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.Movable
+
+public inline fun BackgroundType.movableOrThrow(): BackgroundType.Movable = this as
+    dev.inmo.tgbotapi.types.BackgroundType.Movable
+
+public inline fun <T> BackgroundType.ifMovable(block: (BackgroundType.Movable) -> T): T? =
+    movableOrNull() ?.let(block)
+
+public inline fun BackgroundType.unknownOrNull(): BackgroundType.Unknown? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.Unknown
+
+public inline fun BackgroundType.unknownOrThrow(): BackgroundType.Unknown = this as
+    dev.inmo.tgbotapi.types.BackgroundType.Unknown
+
+public inline fun <T> BackgroundType.ifUnknown(block: (BackgroundType.Unknown) -> T): T? =
+    unknownOrNull() ?.let(block)
+
+public inline fun BackgroundType.withDocumentOrNull(): BackgroundType.WithDocument? = this as?
+    dev.inmo.tgbotapi.types.BackgroundType.WithDocument
+
+public inline fun BackgroundType.withDocumentOrThrow(): BackgroundType.WithDocument = this as
+    dev.inmo.tgbotapi.types.BackgroundType.WithDocument
+
+public inline fun <T> BackgroundType.ifWithDocument(block: (BackgroundType.WithDocument) -> T): T? =
+    withDocumentOrNull() ?.let(block)
+
 public inline fun ChatIdentifier.idChatIdentifierOrNull(): IdChatIdentifier? = this as?
     dev.inmo.tgbotapi.types.IdChatIdentifier
 
@@ -2943,6 +3064,15 @@ public inline fun TelegramMedia.titledTelegramMediaOrThrow(): TitledTelegramMedi
 public inline fun <T> TelegramMedia.ifTitledTelegramMedia(block: (TitledTelegramMedia) -> T): T? =
     titledTelegramMediaOrNull() ?.let(block)
 
+public inline fun ChatEvent.chatBackgroundOrNull(): ChatBackground? = this as?
+    dev.inmo.tgbotapi.types.chat.ChatBackground
+
+public inline fun ChatEvent.chatBackgroundOrThrow(): ChatBackground = this as
+    dev.inmo.tgbotapi.types.chat.ChatBackground
+
+public inline fun <T> ChatEvent.ifChatBackground(block: (ChatBackground) -> T): T? =
+    chatBackgroundOrNull() ?.let(block)
+
 public inline fun ChatEvent.giveawayCreatedOrNull(): GiveawayCreated? = this as?
     dev.inmo.tgbotapi.types.giveaway.GiveawayCreated