"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.validateOptions = validateOptions;
exports.validateOutputOptions = validateOutputOptions;
const formats = ['real', 'string'];
const types = ['json', 'html', 'string', 'rtf'];
const styles = ['csl', 'bibtex', 'bibtxt', 'citation-*', 'ris', 'ndjson'];
const wrapperTypes = ['string', 'function'];
function validateOutputOptions(options) {
  if (typeof options !== 'object') {
    throw new TypeError('Options not an object!');
  }
  const {
    format,
    type,
    style,
    lang,
    append,
    prepend
  } = options;
  if (format && !formats.includes(format)) {
    throw new TypeError(`Option format ("${format}") should be one of: ${formats}`);
  } else if (type && !types.includes(type)) {
    throw new TypeError(`Option type ("${type}") should be one of: ${types}`);
  } else if (style && !styles.includes(style) && !/^citation/.test(style)) {
    throw new TypeError(`Option style ("${style}") should be one of: ${styles}`);
  } else if (lang && typeof lang !== 'string') {
    throw new TypeError(`Option lang should be a string, but is a ${typeof lang}`);
  } else if (prepend && !wrapperTypes.includes(typeof prepend)) {
    throw new TypeError(`Option prepend should be a string or a function, but is a ${typeof prepend}`);
  } else if (append && !wrapperTypes.includes(typeof append)) {
    throw new TypeError(`Option append should be a string or a function, but is a ${typeof append}`);
  }
  if (/^citation/.test(style) && type === 'json') {
    throw new Error(`Combination type/style of json/citation-* is not valid: ${type}/${style}`);
  }
  return true;
}
function validateOptions(options) {
  if (typeof options !== 'object') {
    throw new TypeError('Options should be an object');
  }
  if (options.output) {
    validateOutputOptions(options.output);
  } else if (options.maxChainLength && typeof options.maxChainLength !== 'number') {
    throw new TypeError('Option maxChainLength should be a number');
  } else if (options.forceType && typeof options.forceType !== 'string') {
    throw new TypeError('Option forceType should be a string');
  } else if (options.generateGraph != null && typeof options.generateGraph !== 'boolean') {
    throw new TypeError('Option generateGraph should be a boolean');
  } else if (options.strict != null && typeof options.strict !== 'boolean') {
    throw new TypeError('Option strict should be a boolean');
  } else if (options.target != null && typeof options.target !== 'string') {
    throw new TypeError('Option target should be a boolean');
  }
  return true;
}