amethyst/app/src/main/java/com/vitorpamplona/amethyst/service/model/LongTextNoteEvent.kt

48 wiersze
1.9 KiB
Kotlin

package com.vitorpamplona.amethyst.service.model
import com.vitorpamplona.amethyst.model.HexKey
import com.vitorpamplona.amethyst.model.toHexKey
import nostr.postr.Utils
import java.util.Date
class LongTextNoteEvent(
id: HexKey,
pubKey: HexKey,
createdAt: Long,
tags: List<List<String>>,
content: String,
sig: HexKey
) : BaseTextNoteEvent(id, pubKey, createdAt, kind, tags, content, sig) {
fun dTag() = tags.filter { it.firstOrNull() == "d" }.mapNotNull { it.getOrNull(1) }.firstOrNull() ?: ""
fun address() = ATag(kind, pubKey, dTag(), null)
fun topics() = tags.filter { it.firstOrNull() == "t" }.mapNotNull { it.getOrNull(1) }
fun title() = tags.filter { it.firstOrNull() == "title" }.mapNotNull { it.getOrNull(1) }.firstOrNull()
fun image() = tags.filter { it.firstOrNull() == "image" }.mapNotNull { it.getOrNull(1) }.firstOrNull()
fun summary() = tags.filter { it.firstOrNull() == "summary" }.mapNotNull { it.getOrNull(1) }.firstOrNull()
fun publishedAt() = try {
tags.filter { it.firstOrNull() == "published_at" }.mapNotNull { it.getOrNull(1) }.firstOrNull()?.toLong()
} catch (_: Exception) {
null
}
companion object {
const val kind = 30023
fun create(msg: String, replyTos: List<String>?, mentions: List<String>?, privateKey: ByteArray, createdAt: Long = Date().time / 1000): LongTextNoteEvent {
val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
val tags = mutableListOf<List<String>>()
replyTos?.forEach {
tags.add(listOf("e", it))
}
mentions?.forEach {
tags.add(listOf("p", it))
}
val id = generateId(pubKey, createdAt, kind, tags, msg)
val sig = Utils.sign(id, privateKey)
return LongTextNoteEvent(id.toHexKey(), pubKey, createdAt, tags, msg, sig.toHexKey())
}
}
}