respira/electron/preload.ts

import { contextBridge, ipcRenderer } from "electron";

// Expose protected methods that allow the renderer process to use
// ipcRenderer without exposing the entire object
contextBridge.exposeInMainWorld("electronAPI", {
  invoke: (channel: string, ...args: unknown[]) => {
    const validChannels = [
      "storage:savePattern",
      "storage:getPattern",
      "storage:getLatest",
      "storage:deletePattern",
      "storage:clear",
      "dialog:openFile",
      "dialog:saveFile",
      "fs:readFile",
      "fs:writeFile",
    ];

    if (validChannels.includes(channel)) {
      return ipcRenderer.invoke(channel, ...args);
    }

    throw new Error(`Invalid IPC channel: ${channel}`);
  },
  // Bluetooth device selection
  onBluetoothDeviceList: (
    callback: (
      devices: Array<{ deviceId: string; deviceName: string }>,
    ) => void,
  ) => {
    ipcRenderer.on("bluetooth:device-list", (_event, devices) =>
      callback(devices),
    );
  },
  selectBluetoothDevice: (deviceId: string) => {
    ipcRenderer.send("bluetooth:select-device", deviceId);
  },
});

// Also expose process type for platform detection
contextBridge.exposeInMainWorld("process", {
  type: "renderer",
});