refactor: new project struct (#8199)

packages/frontend/web -> packages/frontend/apps/web
packages/frontend/mobile -> packages/frontend/apps/mobile
packages/frontend/electron -> packages/frontend/apps/electron

packages/frontend/apps/electron/src/shared/type.ts

@@ -0,0 +1,32 @@
+import type { app, dialog, shell } from 'electron';
+
+export interface ExposedMeta {
+  handlers: [string, string[]][];
+  events: [string, string[]][];
+}
+
+// render <-> helper
+export interface RendererToHelper {
+  postEvent: (channel: string, ...args: any[]) => void;
+}
+
+export interface HelperToRenderer {
+  [key: string]: (...args: any[]) => Promise<any>;
+}
+
+// helper <-> main
+export interface HelperToMain {
+  getMeta: () => ExposedMeta;
+}
+
+export type MainToHelper = Pick<
+  typeof dialog & typeof shell & typeof app,
+  | 'showOpenDialog'
+  | 'showSaveDialog'
+  | 'openExternal'
+  | 'showItemInFolder'
+  | 'getPath'
+>;
+
+export const AFFINE_API_CHANNEL_NAME = 'affine-ipc-api';
+export const AFFINE_EVENT_CHANNEL_NAME = 'affine-ipc-event';

packages/frontend/apps/electron/src/shared/utils.ts

@@ -0,0 +1,44 @@
+import type { EventBasedChannel } from 'async-call-rpc';
+
+export function getTime() {
+  return Date.now();
+}
+
+export const isMacOS = () => {
+  return process.platform === 'darwin';
+};
+
+export const isWindows = () => {
+  return process.platform === 'win32';
+};
+
+export const isLinux = () => {
+  return process.platform === 'linux';
+};
+
+interface MessagePortLike {
+  postMessage: (data: unknown) => void;
+  addListener: (event: 'message', listener: (...args: any[]) => void) => void;
+  removeListener: (
+    event: 'message',
+    listener: (...args: any[]) => void
+  ) => void;
+}
+
+export class MessageEventChannel implements EventBasedChannel {
+  constructor(private readonly worker: MessagePortLike) {}
+
+  on(listener: (data: unknown) => void) {
+    const f = (data: unknown) => {
+      listener(data);
+    };
+    this.worker.addListener('message', f);
+    return () => {
+      this.worker.removeListener('message', f);
+    };
+  }
+
+  send(data: unknown) {
+    this.worker.postMessage(data);
+  }
+}