dm cache

packages/app/src/Cache/index.ts

@@ -0,0 +1,53 @@
+import { HexKey, TaggedRawEvent, UserMetadata } from "@snort/nostr";
+import { hexToBech32, unixNowMs } from "Util";
+import { DmCache } from "./DMCache";
+import { UserCache } from "./UserCache";
+
+export interface MetadataCache extends UserMetadata {
+  /**
+   * When the object was saved in cache
+   */
+  loaded: number;
+
+  /**
+   * When the source metadata event was created
+   */
+  created: number;
+
+  /**
+   * The pubkey of the owner of this metadata
+   */
+  pubkey: HexKey;
+
+  /**
+   * The bech32 encoded pubkey
+   */
+  npub: string;
+
+  /**
+   * Pubkey of zapper service
+   */
+  zapService?: HexKey;
+}
+
+export function mapEventToProfile(ev: TaggedRawEvent) {
+  try {
+    const data: UserMetadata = JSON.parse(ev.content);
+    return {
+      pubkey: ev.pubkey,
+      npub: hexToBech32("npub", ev.pubkey),
+      created: ev.created_at,
+      ...data,
+      loaded: unixNowMs(),
+    } as MetadataCache;
+  } catch (e) {
+    console.error("Failed to parse JSON", ev, e);
+  }
+}
+
+export async function preload() {
+  await UserCache.preload();
+  await DmCache.preload();
+}
+
+export { UserCache, DmCache };