workspace with decoupled nostr package

packages/app/src/Db/index.ts

@@ -0,0 +1,42 @@
+import Dexie, { Table } from "dexie";
+import { TaggedRawEvent, u256 } from "@snort/nostr";
+import { MetadataCache } from "State/Users";
+import { hexToBech32 } from "Util";
+
+export const NAME = "snortDB";
+export const VERSION = 3;
+
+export interface SubCache {
+  id: string;
+  ids: u256[];
+  until?: number;
+  since?: number;
+}
+
+const STORES = {
+  users: "++pubkey, name, display_name, picture, nip05, npub",
+  events: "++id, pubkey, created_at",
+  feeds: "++id",
+};
+
+export class SnortDB extends Dexie {
+  users!: Table<MetadataCache>;
+  events!: Table<TaggedRawEvent>;
+  feeds!: Table<SubCache>;
+
+  constructor() {
+    super(NAME);
+    this.version(VERSION)
+      .stores(STORES)
+      .upgrade(async tx => {
+        await tx
+          .table("users")
+          .toCollection()
+          .modify(user => {
+            user.npub = hexToBech32("npub", user.pubkey);
+          });
+      });
+  }
+}
+
+export const db = new SnortDB();