import { hexToNpub } from './conversion.js';
import type { NostrEvent } from "./pool.js";
/**
* Format a pubkey for display, converting to npub format
* @param pubkey The pubkey in hex format
* @param useShortFormat Whether to use a shortened format
* @returns The formatted pubkey
*/
export function formatPubkey(pubkey: string, useShortFormat = false): string {
try {
if (!pubkey) return 'unknown';
// Convert to npub
const npub = hexToNpub(pubkey);
// If converting to npub failed, return a shortened hex
if (!npub) {
return useShortFormat
? `${pubkey.substring(0, 4)}...${pubkey.substring(60)}`
: pubkey;
}
// Return appropriately formatted npub
if (useShortFormat) {
// For short format, show the first 8 and last 4 characters of the npub
return `${npub.substring(0, 8)}...${npub.substring(npub.length - 4)}`;
} else {
// For regular format, use the full npub
return npub;
}
} catch (error) {
console.error('Error formatting pubkey:', error);
return 'error';
}
}
export function formatContacts(
contacts: { pubkey: string; relay?: string; petname?: string }[] = [],
): string {
if (!contacts.length) return "No contacts.";
return contacts
.map((c) => {
const pk = typeof c?.pubkey === "string" ? formatPubkey(c.pubkey) : "unknown";
const relay = c?.relay ? ` relay=${c.relay}` : "";
const pet = c?.petname ? ` petname=${c.petname}` : "";
return `- ${pk}${relay}${pet}`;
})
.join("\n");
}
export function formatRelayList(
relays: { url: string; read: boolean; write: boolean }[],
): string {
if (!relays.length) return "No relays.";
return relays
.slice()
.sort((a, b) => a.url.localeCompare(b.url))
.map((r) => `- ${r.url} (${r.read ? "read" : ""}${r.read && r.write ? "," : ""}${r.write ? "write" : ""})`)
.join("\n");
}
export function formatEvent(evt: NostrEvent): string {
const created = new Date(evt.created_at * 1000).toLocaleString();
const author = formatPubkey(evt.pubkey, true);
const content =
typeof evt.content === "string" && evt.content.length > 240
? `${evt.content.slice(0, 240)}…`
: evt.content ?? "";
return [
`Kind: ${evt.kind}`,
`ID: ${evt.id}`,
`Author: ${author}`,
`Created: ${created}`,
`Content: ${content}`,
`Tags: ${evt.tags?.length ? JSON.stringify(evt.tags) : "[]"}`,
`---`,
].join("\n");
}
export function formatEvents(events: NostrEvent[]): string {
return events.map(formatEvent).join("\n");
}
