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22 lines
866 B
Kotlin
22 lines
866 B
Kotlin
package com.github.insanusmokrassar.TelegramBotAPI.extensions.utils.chat_events
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import com.github.insanusmokrassar.TelegramBotAPI.types.message.*
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import com.github.insanusmokrassar.TelegramBotAPI.types.message.abstracts.ChatEventMessage
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import kotlinx.coroutines.flow.Flow
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import kotlinx.coroutines.flow.mapNotNull
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import kotlin.reflect.KClass
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fun <T : ChatEventMessage> Flow<ChatEventMessage>.divideBySource(contentType: KClass<T>) = mapNotNull {
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if (contentType.isInstance(it)) {
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@Suppress("UNCHECKED_CAST")
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it as T
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} else {
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null
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}
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}
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fun Flow<ChatEventMessage>.onlyChannelEvents() = divideBySource(ChannelEventMessage::class)
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fun Flow<ChatEventMessage>.onlyGroupEvents() = divideBySource(CommonGroupEventMessage::class)
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fun Flow<ChatEventMessage>.onlySupergroupEvents() = divideBySource(CommonSupergroupEventMessage::class)
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