// Check for problems in config files that JSON schema can't catch

import { enumerate, Parameter } from "@warhol/utilities";
import { NonsensicalConfigError } from "./errors";
import { withDefaults } from "./defaults";

export const checkSanity = ({
  utils,
  components,
}: Parameter<typeof withDefaults, 0>): void => {
  if (!utils) {
    return;
  }
  for (const util of utils.sources) {
    if (!util.components || util.components.length === 0) {
      continue;
    }
    for (const componentTarget of util.components) {
      const componentMatch = components
        ? components.find(({ source, target = source }) => componentTarget === target) // eslint-disable-line
        : null;
      if (!componentMatch) {
        const utilName = util.name || util.selector;
        const restriction = enumerate(util.components);
        const message =
          `The ${util.type} utility "${utilName}" is ` +
          `restricted to the component(s) ${restriction}, ` +
          `but no component with the target selector ` +
          `${componentTarget} is defined in the configuration`;
        throw new NonsensicalConfigError(message);
      }
    }
  }
};