apps/desktop/src/main/main.ts

import { app, dialog } from 'electron';
import { installMainProcessLogCapture } from './main-process-diagnostics.js';
import { isIsolatedE2e } from './startup-context.js';

installMainProcessLogCapture();

// The macOS app menu title and app.getName() consumers read this name. Set it
// before ready, unchanged from its historical pre-ready position.
//
// Safe-by-default isolation: a dev build must not share the released app's
// userData root. Electron derives userData from the app name, so a distinct
// dev name yields a distinct root (and thus a distinct runtime-host rootId,
// socket/pipe namespace, and single-instance lock) without touching any
// path logic. See https://github.com/maka-agent/maka-agent/issues/2252.
app.setName(app.isPackaged ? 'Maka' : 'Maka Dev');

// E2E isolation: redirect userData BEFORE the single-instance lock so the
// lock judges the throwaway dir, not the real user data — otherwise a
// developer with Maka open makes the E2E process exit as a "second instance".
// Gated by isIsolatedE2e (not just the dir env) so a packaged build ignores
// it. Also before ready: userData must be pinned before any store opens.
if (isIsolatedE2e && process.env.MAKA_E2E_USER_DATA_DIR) {
  app.setPath('userData', process.env.MAKA_E2E_USER_DATA_DIR);
}

// Electron does not enforce single-instance by default. Must run before any
// workspace/store setup below -- a losing second process exits immediately,
// before touching shared state. See the 'second-instance' listener in
// runtime-host-boot.ts for what the surviving process does about it.
if (!app.requestSingleInstanceLock()) {
  app.exit(0);
} else {
  // The full boot must not run in the top-level module-evaluation chain:
  // Electron ESM emits `ready` only after the entry module finishes
  // evaluating, so a top-level `await app.whenReady()` (which the
  // storage-root repair dialog needs) would deadlock. Boot therefore runs
  // after ready via a dynamic import, keeping the startup chain out of
  // module evaluation and preserving "root-identity check before any
  // store/db write".
  app
    .whenReady()
    .then(() => {
      console.log('[startup] app ready');
      return import('./runtime-host-boot.js');
    })
    .catch((error: unknown) => {
      console.error('[startup] fatal:', error);
      // E2E runs must not hang on a modal error box (same reasoning as the
      // fixture-fatal path in runtime-host-boot.ts: print a parseable line and exit fast).
      if (!isIsolatedE2e) {
        const message = error instanceof Error ? error.message : String(error);
        dialog.showErrorBox('Maka failed to start', message);
      }
      app.exit(1);
    });
}