commonMain.net.folivo.trixnity.client.room.TypingEventHandler.kt Maven / Gradle / Ivy

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Multiplatform Kotlin SDK for matrix-protocol

There is a newer version: 4.7.1

package net.folivo.trixnity.client.room

import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.flow.asStateFlow
import kotlinx.coroutines.flow.update
import net.folivo.trixnity.clientserverapi.client.MatrixClientServerApiClient
import net.folivo.trixnity.core.EventHandler
import net.folivo.trixnity.core.model.RoomId
import net.folivo.trixnity.core.model.events.ClientEvent
import net.folivo.trixnity.core.model.events.m.TypingEventContent
import net.folivo.trixnity.core.model.events.roomIdOrNull
import net.folivo.trixnity.core.subscribeContent
import net.folivo.trixnity.core.unsubscribeOnCompletion

interface TypingEventHandler : EventHandler {
    val usersTyping: StateFlow>
}

class TypingEventHandlerImpl(
    private val api: MatrixClientServerApiClient,
) : TypingEventHandler {

    override fun startInCoroutineScope(scope: CoroutineScope) {
        api.sync.subscribeContent(subscriber = ::setTyping).unsubscribeOnCompletion(scope)
    }

    private val _usersTyping = MutableStateFlow(mapOf())
    override val usersTyping = _usersTyping.asStateFlow()

    internal fun setTyping(typingEvent: ClientEvent) {
        typingEvent.roomIdOrNull?.let { roomId ->
            _usersTyping.update { oldValue -> oldValue + (roomId to typingEvent.content) }
        }
    }
}