import { useMemo } from 'react'
import { useAppState } from '../state/AppState.js'
import {
  hasVoiceAuth,
  isVoiceGrowthBookEnabled,
} from '../voice/voiceModeEnabled.js'

/**
 * Combines user intent (settings.voiceEnabled) with auth + GB kill-switch.
 * When using Doubao backend, auth check is skipped (Doubao has its own credentials).
 * Only the auth half is memoized on authVersion — it's the expensive one
 * (cold getClaudeAIOAuthTokens memoize → sync `security` spawn, ~60ms/call,
 * ~180ms total in profile v5 when token refresh cleared the cache mid-session).
 * GB is a cheap cached-map lookup and stays outside the memo so a mid-session
 * kill-switch flip still takes effect on the next render.
 */
export function useVoiceEnabled(): boolean {
  const userIntent = useAppState(s => s.settings.voiceEnabled === true)
  const provider = useAppState(s => s.settings.voiceProvider)
  // All hooks must be called unconditionally (Rules of Hooks)
  const authVersion = useAppState(s => s.authVersion)
  // eslint-disable-next-line react-hooks/exhaustive-deps
  const authed = useMemo(hasVoiceAuth, [authVersion])
  if (provider === 'doubao') {
    return userIntent && isVoiceGrowthBookEnabled()
  }
  return userIntent && authed && isVoiceGrowthBookEnabled()
}