amethyst/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/GlobalFeedFilter.kt

51 wiersze
1.9 KiB
Kotlin

package com.vitorpamplona.amethyst.ui.dal
import com.vitorpamplona.amethyst.model.Account
import com.vitorpamplona.amethyst.model.LocalCache
import com.vitorpamplona.amethyst.model.Note
import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
import com.vitorpamplona.amethyst.service.model.LongTextNoteEvent
import com.vitorpamplona.amethyst.service.model.TextNoteEvent
object GlobalFeedFilter : FeedFilter<Note>() {
lateinit var account: Account
override fun feed(): List<Note> {
val followChannels = account.followingChannels()
val followUsers = account.followingKeySet()
val notes = LocalCache.notes.values
.asSequence()
.filter {
(it.event is TextNoteEvent || it.event is LongTextNoteEvent || it.event is ChannelMessageEvent) &&
it.replyTo.isNullOrEmpty()
}
.filter {
// does not show events already in the public chat list
(it.channel() == null || it.channel() !in followChannels) &&
// does not show people the user already follows
(it.author?.pubkeyHex !in followUsers)
}
.filter { account.isAcceptable(it) }
.toList()
val longFormNotes = LocalCache.addressables.values
.asSequence()
.filter {
(it.event is LongTextNoteEvent) && it.replyTo.isNullOrEmpty()
}
.filter {
// does not show events already in the public chat list
(it.channel() == null || it.channel() !in followChannels) &&
// does not show people the user already follows
(it.author?.pubkeyHex !in followUsers)
}
.filter { account.isAcceptable(it) }
.toList()
return (notes + longFormNotes)
.sortedBy { it.createdAt() }
.reversed()
}
}