kopia lustrzana https://github.com/vitorpamplona/amethyst
45 wiersze
1.6 KiB
Kotlin
45 wiersze
1.6 KiB
Kotlin
package com.vitorpamplona.amethyst.service.model
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import android.util.Log
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import com.vitorpamplona.amethyst.model.HexKey
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import com.vitorpamplona.amethyst.model.toHexKey
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import nostr.postr.Utils
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import java.util.Date
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class ChannelMetadataEvent(
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id: HexKey,
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pubKey: HexKey,
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createdAt: Long,
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tags: List<List<String>>,
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content: String,
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sig: HexKey
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) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
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fun channel() = tags.firstOrNull { it.firstOrNull() == "e" }?.getOrNull(1)
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fun channelInfo() =
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try {
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MetadataEvent.gson.fromJson(content, ChannelCreateEvent.ChannelData::class.java)
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} catch (e: Exception) {
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Log.e("ChannelMetadataEvent", "Can't parse channel info $content", e)
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ChannelCreateEvent.ChannelData(null, null, null)
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}
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companion object {
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const val kind = 41
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fun create(newChannelInfo: ChannelCreateEvent.ChannelData?, originalChannelIdHex: String, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ChannelMetadataEvent {
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val content =
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if (newChannelInfo != null) {
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gson.toJson(newChannelInfo)
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} else {
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""
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}
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val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
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val tags = listOf(listOf("e", originalChannelIdHex, "", "root"))
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val id = generateId(pubKey, createdAt, kind, tags, content)
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val sig = Utils.sign(id, privateKey)
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return ChannelMetadataEvent(id.toHexKey(), pubKey, createdAt, tags, content, sig.toHexKey())
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}
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}
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}
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