refactor(electron): sqlite db data workflow (remove symlink & fs watcher) (#2491)

apps/electron/layers/main/src/db/index.ts

@@ -0,0 +1,48 @@
+import { appContext } from '../context';
+import type { MainEventListener, NamespaceHandlers } from '../type';
+import { ensureSQLiteDB } from './ensure-db';
+import { dbSubjects } from './subjects';
+
+export * from './ensure-db';
+export * from './subjects';
+
+export const dbHandlers = {
+  getDocAsUpdates: async (_, id: string) => {
+    const workspaceDB = await ensureSQLiteDB(id);
+    return workspaceDB.getDocAsUpdates();
+  },
+  applyDocUpdate: async (_, id: string, update: Uint8Array) => {
+    const workspaceDB = await ensureSQLiteDB(id);
+    return workspaceDB.applyUpdate(update);
+  },
+  addBlob: async (_, workspaceId: string, key: string, data: Uint8Array) => {
+    const workspaceDB = await ensureSQLiteDB(workspaceId);
+    return workspaceDB.addBlob(key, data);
+  },
+  getBlob: async (_, workspaceId: string, key: string) => {
+    const workspaceDB = await ensureSQLiteDB(workspaceId);
+    return workspaceDB.getBlob(key);
+  },
+  deleteBlob: async (_, workspaceId: string, key: string) => {
+    const workspaceDB = await ensureSQLiteDB(workspaceId);
+    return workspaceDB.deleteBlob(key);
+  },
+  getBlobKeys: async (_, workspaceId: string) => {
+    const workspaceDB = await ensureSQLiteDB(workspaceId);
+    return workspaceDB.getBlobKeys();
+  },
+  getDefaultStorageLocation: async () => {
+    return appContext.appDataPath;
+  },
+} satisfies NamespaceHandlers;
+
+export const dbEvents = {
+  onExternalUpdate: (
+    fn: (update: { workspaceId: string; update: Uint8Array }) => void
+  ) => {
+    const sub = dbSubjects.externalUpdate.subscribe(fn);
+    return () => {
+      sub.unsubscribe();
+    };
+  },
+} satisfies Record<string, MainEventListener>;