'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you 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.
 */

/**
 * Generates file transfer progress messages
 */
class Progress {

  constructor(logger) {
    const self = this;

    self.dotCount = 0;
    self.runningTotal = 0;
    self.totalSize = 0;
    self.logger = logger;
  }

  init(size) {
    this.totalSize = size;
    const totalDesc = this.totalSize || 'unknown number of';

    this.logger.log(`Transferring ${totalDesc} bytes`, true);
  }

  progress(size) {
    if (!this.totalSize) return;

    this.runningTotal += size;
    let newDotCount = Math.round(this.runningTotal / this.totalSize * 100 / 5);
    if (newDotCount > 20) newDotCount = 20;
    for (let i = 0; i < newDotCount - this.dotCount; i++) {
      this.logger.log('.', true);
    }
    this.dotCount = newDotCount;
  }

  complete() {
    this.logger.log(`Transfer complete`, false);
  }

}
exports.default = Progress;
module.exports = exports['default'];