// Single source of truth for "this feature only exists on some platforms" —
// mirrors the same-named module in vncmail-native (mobile), so the AI
// Assistant capability contract (docs/AI-ASSISTANT-CONCEPT.md §3, §11)
// reads identically across both clients.

import { isElectronShell } from '@/lib/electron-bridge';

/**
 * The `local` provider class (a loopback Ollama-compatible runtime) needs a
 * host process reachable on 127.0.0.1. Electron's main process can fetch
 * loopback directly, no CORS constraint. A browser page can too — localhost
 * is a trustworthy origin so mixed-content doesn't block it — but only if
 * the runtime's own CORS allowlist permits this origin (see
 * localLlmNeedsCorsSetup below). Mobile has neither the runtime nor the RAM
 * and is a separate codebase (vncmail-native), not reachable from here.
 */
export function supportsLocalLlm(): boolean {
  return true; // web or Electron — this codebase is never mobile
}

/**
 * True only for the plain-browser case: Electron reaches loopback from its
 * main process with no CORS involved at all, so this is specifically the
 * "advise the user to set OLLAMA_ORIGINS" case (docs/AI-ASSISTANT-CONCEPT.md
 * §3's note under the platform matrix), not a general capability check.
 */
export function localLlmNeedsCorsSetup(): boolean {
  return !isElectronShell();
}