amethyst/app/src/main/java/com/vitorpamplona/amethyst/service/NostrCommunityDataSource.kt

68 wiersze
2.8 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.service
import com.vitorpamplona.amethyst.model.AddressableNote
import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
import com.vitorpamplona.amethyst.service.relays.JsonFilter
import com.vitorpamplona.amethyst.service.relays.TypedFilter
import com.vitorpamplona.quartz.events.CommunityDefinitionEvent
import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
object NostrCommunityDataSource : NostrDataSource("SingleCommunityFeed") {
private var communityToWatch: AddressableNote? = null
private fun createLoadCommunityFilter(): TypedFilter? {
val myCommunityToWatch = communityToWatch ?: return null
val community = myCommunityToWatch.event as? CommunityDefinitionEvent ?: return null
return TypedFilter(
types = COMMON_FEED_TYPES,
filter =
JsonFilter(
authors =
community
.moderators()
.map { it.key }
.plus(listOfNotNull(myCommunityToWatch.author?.pubkeyHex)),
tags =
mapOf(
"a" to listOf(myCommunityToWatch.address.toTag()),
),
kinds = listOf(CommunityPostApprovalEvent.KIND),
limit = 500,
),
)
}
val loadCommunityChannel = requestNewChannel()
override fun updateChannelFilters() {
loadCommunityChannel.typedFilters = listOfNotNull(createLoadCommunityFilter()).ifEmpty { null }
}
fun loadCommunity(note: AddressableNote?) {
communityToWatch = note
invalidateFilters()
}
}