refactor(electron): create electron api package (#5334)

packages/frontend/electron-api/src/index.ts

@@ -0,0 +1,37 @@
+import type {
+  events as helperEvents,
+  handlers as helperHandlers,
+} from '@affine/electron/helper/exposed';
+import type {
+  events as mainEvents,
+  handlers as mainHandlers,
+} from '@affine/electron/main/exposed';
+import type {
+  affine as exposedAffineGlobal,
+  appInfo as exposedAppInfo,
+} from '@affine/electron/preload/electron-api';
+
+type MainHandlers = typeof mainHandlers;
+type HelperHandlers = typeof helperHandlers;
+type HelperEvents = typeof helperEvents;
+type MainEvents = typeof mainEvents;
+type ClientHandler = {
+  [namespace in keyof MainHandlers]: {
+    [method in keyof MainHandlers[namespace]]: MainHandlers[namespace][method] extends (
+      arg0: any,
+      ...rest: infer A
+    ) => any
+      ? (...args: A) => Promise<ReturnType<MainHandlers[namespace][method]>>
+      : never;
+  };
+} & HelperHandlers;
+type ClientEvents = MainEvents & HelperEvents;
+
+export const appInfo = (window as any).appInfo as typeof exposedAppInfo | null;
+export const apis = (window as any).apis as ClientHandler | null;
+export const events = (window as any).events as ClientEvents | null;
+export const affine = (window as any).affine as
+  | typeof exposedAffineGlobal
+  | null;
+
+export type { UpdateMeta } from '@affine/electron/main/updater/event';