"use strict";

Object.defineProperty(exports, "__esModule", {
  value: !0
});

var yaml = require("js-yaml");

function _interopDefault(e) {
  return e && e.__esModule ? e : {
    default: e
  };
}

var yaml__default = _interopDefault(yaml);

const mdRegex = /\s*---([^]*?)\n\s*---(\s*(?:\n|$)[^]*)/;

function parseChangesetFile(contents) {
  const execResult = mdRegex.exec(contents);
  if (!execResult) throw new Error("could not parse changeset - invalid frontmatter: " + contents);
  let releases, [, roughReleases, roughSummary] = execResult, summary = roughSummary.trim();
  try {
    const yamlStuff = yaml__default.default.safeLoad(roughReleases);
    releases = yamlStuff ? Object.entries(yamlStuff).map((([name, type]) => ({
      name: name,
      type: type
    }))) : [];
  } catch (e) {
    throw new Error("could not parse changeset - invalid frontmatter: " + contents);
  }
  if (!releases) throw new Error("could not parse changeset - unknown error: " + contents);
  return {
    releases: releases,
    summary: summary
  };
}

exports.default = parseChangesetFile;