amethyst/app/src/main/java/com/vitorpamplona/amethyst/model/Chatroom.kt

89 wiersze
3.1 KiB
Kotlin

/**
* Copyright (c) 2024 Vitor Pamplona
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.vitorpamplona.amethyst.model
import androidx.compose.runtime.Stable
import com.vitorpamplona.amethyst.service.checkNotInMainThread
import com.vitorpamplona.quartz.encoders.HexKey
import com.vitorpamplona.quartz.utils.TimeUtils
@Stable
class Chatroom() {
var roomMessages: Set<Note> = setOf()
var subject: String? = null
var subjectCreatedAt: Long? = null
@Synchronized
fun addMessageSync(msg: Note) {
checkNotInMainThread()
if (msg !in roomMessages) {
roomMessages = roomMessages + msg
val newSubject = msg.event?.subject()
if (newSubject != null && (msg.createdAt() ?: 0) > (subjectCreatedAt ?: 0)) {
subject = newSubject
subjectCreatedAt = msg.createdAt()
}
}
}
@Synchronized
fun removeMessageSync(msg: Note) {
checkNotInMainThread()
if (msg !in roomMessages) {
roomMessages = roomMessages + msg
roomMessages
.filter { it.event?.subject() != null }
.sortedBy { it.createdAt() }
.lastOrNull()
?.let {
subject = it.event?.subject()
subjectCreatedAt = it.createdAt()
}
}
}
fun senderIntersects(keySet: Set<HexKey>): Boolean {
return roomMessages.any { it.author?.pubkeyHex in keySet }
}
fun pruneMessagesToTheLatestOnly(): Set<Note> {
val sorted = roomMessages.sortedWith(compareBy({ it.createdAt() }, { it.idHex })).reversed()
val toKeep =
if ((sorted.firstOrNull()?.createdAt() ?: 0) > TimeUtils.oneWeekAgo()) {
// Recent messages, keep last 100
sorted.take(100).toSet()
} else {
// Old messages, keep the last one.
sorted.take(1).toSet()
} + sorted.filter { it.liveSet?.isInUse() ?: false }
val toRemove = roomMessages.minus(toKeep)
roomMessages = toKeep
return toRemove
}
}