Alex Gleason
b094e01337
Deduplicates the kind 10063 tag parsing logic that was repeated in both NostrSync.tsx and useInitialSync.ts. Both now call the shared function from lib/appBlossom.ts.
82 lines
2.3 KiB
TypeScript
82 lines
2.3 KiB
TypeScript
import type { NostrEvent } from "@nostrify/nostrify";
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import type { BlossomServerMetadata } from "@/contexts/AppContext";
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/** Normalize a Blossom server URL for deduplication (lowercase, ensure trailing slash). */
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function normalizeUrl(url: string): string {
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return url.toLowerCase().replace(/\/+$/, "");
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}
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/** Parse a kind 10063 Blossom server list event into validated server URLs. */
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export function parseBlossomServerList(event: NostrEvent): string[] {
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return event.tags
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.filter(([name]) => name === "server")
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.map(([, url]) => url)
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.filter((url) => {
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try {
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new URL(url);
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return true;
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} catch {
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return false;
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}
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});
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}
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/**
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* App default Blossom servers used as a fallback when the user has no kind 10063
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* server list, and can be optionally combined with user servers (mirroring APP_RELAYS).
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*/
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export const APP_BLOSSOM_SERVERS: BlossomServerMetadata = {
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servers: [
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"https://blossom.ditto.pub/",
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"https://blossom.dreamith.to/",
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"https://blossom.primal.net/",
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],
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updatedAt: 0,
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};
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/**
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* Get the effective Blossom server list based on user settings.
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*
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* Mirrors getEffectiveRelays() semantics:
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* - If useAppBlossomServers is true, merges app servers with user servers (deduped).
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* - If useAppBlossomServers is false, returns only user servers (deduped).
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*
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* Order is preserved: app servers first (when enabled), then user servers.
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* This matches BUD-03's "most trusted first" ordering convention.
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*/
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export function getEffectiveBlossomServers(
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userMeta: BlossomServerMetadata,
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useAppBlossomServers: boolean,
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): string[] {
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if (!useAppBlossomServers) {
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return deduplicateServers(userMeta.servers);
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}
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const seen = new Set<string>();
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const merged: string[] = [];
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for (const url of [...APP_BLOSSOM_SERVERS.servers, ...userMeta.servers]) {
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const normalized = normalizeUrl(url);
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if (!seen.has(normalized)) {
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seen.add(normalized);
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merged.push(url);
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}
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}
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return merged;
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}
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/** Deduplicate servers by normalized URL, preserving order. */
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function deduplicateServers(servers: string[]): string[] {
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const seen = new Set<string>();
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const result: string[] = [];
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for (const url of servers) {
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const normalized = normalizeUrl(url);
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if (!seen.has(normalized)) {
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seen.add(normalized);
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result.push(url);
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}
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}
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return result;
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}
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