105 lines
2.5 KiB
TypeScript
105 lines
2.5 KiB
TypeScript
import {Event} from './event'
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import {decode, AddressPointer, ProfilePointer, EventPointer} from './nip19'
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type Reference = {
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text: string
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profile?: ProfilePointer
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event?: EventPointer
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address?: AddressPointer
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}
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const mentionRegex =
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/\bnostr:((note|npub|naddr|nevent|nprofile)1\w+)\b|#\[(\d+)\]/g
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export function parseReferences(evt: Event): Reference[] {
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let references: Reference[] = []
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for (let ref of evt.content.matchAll(mentionRegex)) {
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if (ref[2]) {
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// it's a NIP-27 mention
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try {
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let {type, data} = decode(ref[1])
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switch (type) {
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case 'npub': {
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references.push({
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text: ref[0],
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profile: {pubkey: data as string, relays: []}
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})
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break
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}
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case 'nprofile': {
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references.push({
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text: ref[0],
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profile: data as ProfilePointer
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})
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break
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}
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case 'note': {
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references.push({
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text: ref[0],
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event: {id: data as string, relays: []}
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})
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break
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}
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case 'nevent': {
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references.push({
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text: ref[0],
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event: data as EventPointer
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})
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break
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}
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case 'naddr': {
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references.push({
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text: ref[0],
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address: data as AddressPointer
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})
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break
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}
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}
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} catch (err) {
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/***/
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}
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} else if (ref[3]) {
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// it's a NIP-10 mention
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let idx = parseInt(ref[3], 10)
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let tag = evt.tags[idx]
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if (!tag) continue
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switch (tag[0]) {
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case 'p': {
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references.push({
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text: ref[0],
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profile: {pubkey: tag[1], relays: tag[2] ? [tag[2]] : []}
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})
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break
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}
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case 'e': {
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references.push({
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text: ref[0],
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event: {id: tag[1], relays: tag[2] ? [tag[2]] : []}
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})
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break
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}
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case 'a': {
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try {
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let [kind, pubkey, identifier] = ref[1].split(':')
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references.push({
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text: ref[0],
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address: {
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identifier,
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pubkey,
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kind: parseInt(kind, 10),
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relays: tag[2] ? [tag[2]] : []
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}
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})
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} catch (err) {
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/***/
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}
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break
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}
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}
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}
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}
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return references
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}
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