'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.VERSION_IN_DEV = exports.VERSION_3_4_0 = exports.VERSION_3_2_0 = exports.VERSION_3_1_0 = exports.ServerVersion = undefined;

var _maxSafeInteger = require('babel-runtime/core-js/number/max-safe-integer');

var _maxSafeInteger2 = _interopRequireDefault(_maxSafeInteger);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _util = require('./util');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var SERVER_VERSION_REGEX = new RegExp('^(Neo4j/)?(\\d+)\\.(\\d+)(?:\\.)?(\\d*)(\\.|-|\\+)?([0-9A-Za-z-.]*)?$'); /**
                                                                                                                 * Copyright (c) 2002-2018 "Neo4j,"
                                                                                                                 * Neo4j Sweden AB [http://neo4j.com]
                                                                                                                 *
                                                                                                                 * This file is part of Neo4j.
                                                                                                                 *
                                                                                                                 * Licensed under the Apache License, Version 2.0 (the "License");
                                                                                                                 * you may not use this file except in compliance with the License.
                                                                                                                 * You may obtain a copy of the License at
                                                                                                                 *
                                                                                                                 *     http://www.apache.org/licenses/LICENSE-2.0
                                                                                                                 *
                                                                                                                 * Unless required by applicable law or agreed to in writing, software
                                                                                                                 * distributed under the License is distributed on an "AS IS" BASIS,
                                                                                                                 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
                                                                                                                 * See the License for the specific language governing permissions and
                                                                                                                 * limitations under the License.
                                                                                                                 */

var NEO4J_IN_DEV_VERSION_STRING = 'Neo4j/dev';

var ServerVersion = function () {

  /**
   * @constructor
   * @param {number} major the major version number.
   * @param {number} minor the minor version number.
   * @param {number} patch the patch version number.
   */
  function ServerVersion(major, minor, patch) {
    (0, _classCallCheck3.default)(this, ServerVersion);

    this.major = major;
    this.minor = minor;
    this.patch = patch;
  }

  /**
   * Fetch server version using the given driver.
   * @param {Driver} driver the driver to use.
   * @return {Promise<ServerVersion>} promise resolved with a {@link ServerVersion} object or rejected with error.
   */


  (0, _createClass3.default)(ServerVersion, [{
    key: 'compareTo',


    /**
     * Compare this version to the given one.
     * @param {ServerVersion} other the version to compare with.
     * @return {number} value 0 if this version is the same as the given one, value less then 0 when this version
     * was released earlier than the given one and value greater then 0 when this version was released after
     * than the given one.
     */
    value: function compareTo(other) {
      var result = compareInts(this.major, other.major);
      if (result === 0) {
        result = compareInts(this.minor, other.minor);
        if (result === 0) {
          result = compareInts(this.patch, other.patch);
        }
      }
      return result;
    }
  }], [{
    key: 'fromDriver',
    value: function fromDriver(driver) {
      var session = driver.session();
      return session.run('RETURN 1').then(function (result) {
        session.close();
        return ServerVersion.fromString(result.summary.server.version);
      });
    }

    /**
     * Parse given string to a {@link ServerVersion} object.
     * @param {string} versionStr the string to parse.
     * @return {ServerVersion} version for the given string.
     * @throws Error if given string can't be parsed.
     */

  }, {
    key: 'fromString',
    value: function fromString(versionStr) {
      if (!versionStr) {
        return new ServerVersion(3, 0, 0);
      }

      (0, _util.assertString)(versionStr, 'Neo4j version string');

      if (versionStr.toLowerCase() === NEO4J_IN_DEV_VERSION_STRING.toLowerCase()) {
        return VERSION_IN_DEV;
      }

      var version = versionStr.match(SERVER_VERSION_REGEX);
      if (!version) {
        throw new Error('Unparsable Neo4j version: ' + versionStr);
      }

      var major = parseIntStrict(version[2]);
      var minor = parseIntStrict(version[3]);
      var patch = parseIntStrict(version[4] || 0);

      return new ServerVersion(major, minor, patch);
    }
  }]);
  return ServerVersion;
}();

function parseIntStrict(str, name) {
  var value = parseInt(str, 10);
  if (!value && value !== 0) {
    throw new Error('Unparsable number ' + name + ': \'' + str + '\'');
  }
  return value;
}

function compareInts(x, y) {
  return x < y ? -1 : x === y ? 0 : 1;
}

var VERSION_3_1_0 = new ServerVersion(3, 1, 0);
var VERSION_3_2_0 = new ServerVersion(3, 2, 0);
var VERSION_3_4_0 = new ServerVersion(3, 4, 0);
var maxVer = _maxSafeInteger2.default;
var VERSION_IN_DEV = new ServerVersion(maxVer, maxVer, maxVer);

exports.ServerVersion = ServerVersion;
exports.VERSION_3_1_0 = VERSION_3_1_0;
exports.VERSION_3_2_0 = VERSION_3_2_0;
exports.VERSION_3_4_0 = VERSION_3_4_0;
exports.VERSION_IN_DEV = VERSION_IN_DEV;