'use strict';

const index = require('../tokenizer/index.cjs');
const create = require('../parser/create.cjs');
const create$2 = require('../generator/create.cjs');
const create$3 = require('../convertor/create.cjs');
const create$1 = require('../walker/create.cjs');
const Lexer = require('../lexer/Lexer.cjs');
const mix = require('./config/mix.cjs');

function createSyntax(config) {
  const parse = create.createParser(config);
  const walk = create$1.createWalker(config);
  const generate = create$2.createGenerator(config);
  const { fromPlainObject, toPlainObject } = create$3.createConvertor(walk);

  const syntax = {
    lexer: null,
    createLexer: (config) =>
      new Lexer.Lexer(config, syntax, syntax.lexer.structure),

    tokenize: index.tokenize,
    parse,
    generate,

    walk,
    find: walk.find,
    findLast: walk.findLast,
    findAll: walk.findAll,

    fromPlainObject,
    toPlainObject,

    fork(extension) {
      const base = mix({}, config); // copy of config

      return createSyntax(
        typeof extension === 'function' ?
          extension(base, Object.assign)
        : mix(base, extension)
      );
    },
  };

  syntax.lexer = new Lexer.Lexer(
    {
      generic: true,
      types: config.types,
      atrules: config.atrules,
      properties: config.properties,
      node: config.node,
    },
    syntax
  );

  return syntax;
}
const createSyntax$1 = (config) => createSyntax(mix({}, config));

module.exports = createSyntax$1;