const getCommandLine = (
  optionsDescription: any,
  description: any,
  cmd: any
): Object[] => {
  if (Array.isArray(optionsDescription)) return optionsDescription;

  const options: Object[] = [];

  const optionDescritions = Object.keys(optionsDescription);
  if (!optionDescritions.length) return options;

  optionDescritions.forEach((option) => {
    let optionItemConfig = optionsDescription[option];
    const optionDescritionItem = getOptionItem(optionItemConfig, option);
    options.push(optionDescritionItem);
  });

  return [
    {
      header: `fef ${cmd}`,
      content: description
    },
    {
      header: 'Usage',
      content: `$ fef ${cmd} [options]`
    },
    {
      header: 'Options',
      optionList: options
    }
  ];
};

const getOptionItem = (optionItemConfig: any, option: any): object => {
  let optionDescritionItem: any = {};
  if (typeof optionItemConfig == 'string') {
    optionDescritionItem = {
      name: option,
      description: optionItemConfig
    };
  } else {
    if (!optionItemConfig.name) {
      optionItemConfig.name = option;
    }

    optionDescritionItem = optionItemConfig;
    optionDescritionItem.type =
      typeof optionItemConfig.type === 'function'
        ? optionItemConfig.type
        : String;
  }
  return optionDescritionItem;
};

export default getCommandLine;