// Window fullscreen adapter — replaces Tauri's
// `getCurrentWindow().setFullscreen(...)` from `@tauri-apps/api/window`.
// The renderer asks main to flip the OS-level fullscreen flag on the host
// BrowserWindow so cinema mode covers the Windows taskbar / macOS menubar
// the way Tauri's appWindow.setFullscreen used to.

import { BrowserWindow, ipcMain } from 'electron';

import { CHANNELS } from '../ipc-types';

export function register(mainWindow: BrowserWindow): void {
  ipcMain.handle(CHANNELS.WINDOW_SET_FULLSCREEN, (evt, enabled: boolean) => {
    try {
      // Prefer the BrowserWindow that issued the IPC so multi-window setups
      // affect the right host; fall back to the main window we were
      // registered against (matches autostart.ts's app-singleton shape).
      const win = BrowserWindow.fromWebContents(evt.sender) ?? mainWindow;
      if (!win || win.isDestroyed()) return;
      win.setFullScreen(!!enabled);
    } catch (err: unknown) {
      console.warn('window setFullscreen failed', err);
      throw err;
    }
  });
}