43 lines
1.9 KiB
Kotlin
43 lines
1.9 KiB
Kotlin
package org.session.libsession.messaging.mentions
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import org.session.libsession.messaging.MessagingModuleConfiguration
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import org.session.libsession.messaging.contacts.Contact
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object MentionsManager {
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var userPublicKeyCache = mutableMapOf<Long, Set<String>>() // Thread ID to set of user hex encoded public keys
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fun cache(publicKey: String, threadID: Long) {
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val cache = userPublicKeyCache[threadID]
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if (cache != null) {
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userPublicKeyCache[threadID] = cache.plus(publicKey)
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} else {
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userPublicKeyCache[threadID] = setOf( publicKey )
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}
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}
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fun getMentionCandidates(query: String, threadID: Long, isOpenGroup: Boolean): List<Mention> {
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val cache = userPublicKeyCache[threadID] ?: return listOf()
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// Prepare
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val context = if (isOpenGroup) Contact.ContactContext.OPEN_GROUP else Contact.ContactContext.REGULAR
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val storage = MessagingModuleConfiguration.shared.storage
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val userPublicKey = storage.getUserPublicKey()
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// Gather candidates
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var candidates: List<Mention> = cache.mapNotNull { publicKey ->
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val contact = storage.getContactWithSessionID(publicKey)
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val displayName = contact?.displayName(context) ?: return@mapNotNull null
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Mention(publicKey, displayName)
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}
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candidates = candidates.filter { it.publicKey != userPublicKey }
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// Sort alphabetically first
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candidates.sortedBy { it.displayName }
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if (query.length >= 2) {
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// Filter out any non-matching candidates
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candidates = candidates.filter { it.displayName.toLowerCase().contains(query.toLowerCase()) }
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// Sort based on where in the candidate the query occurs
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candidates.sortedBy { it.displayName.toLowerCase().indexOf(query.toLowerCase()) }
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}
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// Return
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return candidates
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}
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}
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