feat(search): add SearchFilterFactory and SearchResultFilter
Phase 2: SearchFilterFactory converts SearchQuery → List<Filter> with default 3-group kind splitting (Android parity), NIP-50 inline extensions, OR query support. SearchResultFilter handles client-side exclusions, reply/media pseudo-kind detection, dedup. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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/*
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* Copyright (c) 2025 Vitor Pamplona
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
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* Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package com.vitorpamplona.amethyst.desktop.subscriptions
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import com.vitorpamplona.amethyst.commons.search.SearchQuery
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import com.vitorpamplona.quartz.experimental.audio.header.AudioHeaderEvent
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import com.vitorpamplona.quartz.experimental.audio.track.AudioTrackEvent
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import com.vitorpamplona.quartz.experimental.interactiveStories.InteractiveStoryPrologueEvent
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import com.vitorpamplona.quartz.experimental.interactiveStories.InteractiveStorySceneEvent
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import com.vitorpamplona.quartz.experimental.nipsOnNostr.NipTextEvent
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import com.vitorpamplona.quartz.experimental.nns.NNSEvent
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import com.vitorpamplona.quartz.experimental.publicMessages.PublicMessageEvent
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import com.vitorpamplona.quartz.experimental.zapPolls.PollNoteEvent
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import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
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import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
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import com.vitorpamplona.quartz.nip22Comments.CommentEvent
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import com.vitorpamplona.quartz.nip23LongContent.LongTextNoteEvent
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import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelCreateEvent
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import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelMetadataEvent
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import com.vitorpamplona.quartz.nip30CustomEmoji.pack.EmojiPackEvent
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import com.vitorpamplona.quartz.nip51Lists.PinListEvent
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import com.vitorpamplona.quartz.nip51Lists.bookmarkList.BookmarkListEvent
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import com.vitorpamplona.quartz.nip51Lists.followList.FollowListEvent
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import com.vitorpamplona.quartz.nip51Lists.peopleList.PeopleListEvent
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import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
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import com.vitorpamplona.quartz.nip54Wiki.WikiNoteEvent
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import com.vitorpamplona.quartz.nip58Badges.BadgeDefinitionEvent
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import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
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import com.vitorpamplona.quartz.nip84Highlights.HighlightEvent
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import com.vitorpamplona.quartz.nip88Polls.poll.PollEvent
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import com.vitorpamplona.quartz.nip88Polls.response.PollResponseEvent
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import com.vitorpamplona.quartz.nip99Classifieds.ClassifiedsEvent
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object SearchFilterFactory {
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// Default kind groups (ported from Android SearchPostsByText)
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private val defaultKindGroup1 =
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listOf(
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TextNoteEvent.KIND,
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LongTextNoteEvent.KIND,
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BadgeDefinitionEvent.KIND,
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PeopleListEvent.KIND,
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BookmarkListEvent.KIND,
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AudioHeaderEvent.KIND,
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AudioTrackEvent.KIND,
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PinListEvent.KIND,
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PollNoteEvent.KIND,
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ChannelCreateEvent.KIND,
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)
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private val defaultKindGroup2 =
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listOf(
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ChannelMetadataEvent.KIND,
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ClassifiedsEvent.KIND,
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CommunityDefinitionEvent.KIND,
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EmojiPackEvent.KIND,
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HighlightEvent.KIND,
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LiveActivitiesEvent.KIND,
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PublicMessageEvent.KIND,
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NNSEvent.KIND,
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WikiNoteEvent.KIND,
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CommentEvent.KIND,
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)
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private val defaultKindGroup3 =
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listOf(
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InteractiveStoryPrologueEvent.KIND,
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InteractiveStorySceneEvent.KIND,
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FollowListEvent.KIND,
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NipTextEvent.KIND,
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PollEvent.KIND,
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PollResponseEvent.KIND,
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)
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fun createFilters(
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query: SearchQuery,
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limit: Int = 100,
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): List<Filter> {
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if (query.isEmpty) return emptyList()
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val searchString = buildSearchString(query)
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val tags = buildTags(query)
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val authors = query.authors.takeIf { it.isNotEmpty() }
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if (query.kinds.isNotEmpty()) {
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// User specified kinds — single filter (no group splitting needed)
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return listOf(
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Filter(
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kinds = query.kinds.toList(),
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search = searchString,
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authors = authors,
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tags = tags,
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since = query.since,
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until = query.until,
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limit = limit,
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),
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)
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}
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// No kinds specified — use default 3-group search (Android parity)
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return listOf(defaultKindGroup1, defaultKindGroup2, defaultKindGroup3).map { kindGroup ->
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Filter(
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kinds = kindGroup,
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search = searchString,
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authors = authors,
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tags = tags,
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since = query.since,
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until = query.until,
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limit = limit,
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)
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}
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}
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fun createOrFilters(
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query: SearchQuery,
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limit: Int = 100,
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): List<List<Filter>> {
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if (query.orTerms.isEmpty()) return listOf(createFilters(query, limit))
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// Each OR term gets its own set of filters
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return query.orTerms.take(3).map { term ->
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val termQuery = query.copy(text = term, orTerms = kotlinx.collections.immutable.persistentListOf())
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createFilters(termQuery, limit)
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}
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}
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private fun buildSearchString(query: SearchQuery): String? {
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val parts = mutableListOf<String>()
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// Free text (exclude negation terms — those are client-side only)
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if (query.text.isNotBlank()) {
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parts.add(query.text)
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}
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// NIP-50 inline extensions
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query.language?.let { parts.add("language:$it") }
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query.domain?.let { parts.add("domain:$it") }
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return parts.joinToString(" ").takeIf { it.isNotBlank() }
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}
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private fun buildTags(query: SearchQuery): Map<String, List<String>>? {
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if (query.hashtags.isEmpty()) return null
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return mapOf("t" to query.hashtags.toList())
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}
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}
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