Function useLoginMutation

cli/src/hooks/use-auth-query.ts:180–217

(deps: UseLoginMutationDeps = {})

 * CHANGE: Now accepts optional dependencies for testing via dependency injection
 */
export function useLoginMutation(deps: UseLoginMutationDeps = {}) {
  const queryClient = useQueryClient()
  const {
    saveUserCredentials = defaultSaveUserCredentials,
    getUserInfoFromApiKey = defaultGetUserInfoFromApiKey,
    logger = defaultLogger,
  } = deps

  return useMutation({
    mutationFn: async (user: User) => {
      // Save credentials to file system
      saveUserCredentials(user)

      // Validate the new credentials
      const authResult = await validateApiKey({
        apiKey: user.authToken,
        getUserInfoFromApiKey,
        logger,
      })

      const mergedUser = { ...user, ...authResult }
      return mergedUser
    },
    onSuccess: () => {
      // Invalidate auth queries to trigger refetch with new credentials
      queryClient.invalidateQueries({ queryKey: authQueryKeys.all })
    },
    onError: (error) => {
      logger.error(
        {
          error: error instanceof Error ? error.message : String(error),
          errorStack: error instanceof Error ? error.stack : undefined,
        },
        '❌ Login mutation failed',
      )
    },
  })
}

export interface UseLogoutMutationDeps {
  logoutUser?: () => Promise<boolean>