"use strict";

/**
 * Module dependencies.
 */
var util = require('util');

var Stream = require('stream');

var ResponseBase = require('../response-base');
/**
 * Expose `Response`.
 */


module.exports = Response;
/**
 * Initialize a new `Response` with the given `xhr`.
 *
 *  - set flags (.ok, .error, etc)
 *  - parse header
 *
 * @param {Request} req
 * @param {Object} options
 * @constructor
 * @extends {Stream}
 * @implements {ReadableStream}
 * @api private
 */

function Response(req) {
  Stream.call(this);
  this.res = req.res;
  var res = this.res;
  this.request = req;
  this.req = req.req;
  this.text = res.text;
  this.body = res.body === undefined ? {} : res.body;
  this.files = res.files || {};
  this.buffered = req._resBuffered;
  this.headers = res.headers;
  this.header = this.headers;

  this._setStatusProperties(res.statusCode);

  this._setHeaderProperties(this.header);

  this.setEncoding = res.setEncoding.bind(res);
  res.on('data', this.emit.bind(this, 'data'));
  res.on('end', this.emit.bind(this, 'end'));
  res.on('close', this.emit.bind(this, 'close'));
  res.on('error', this.emit.bind(this, 'error'));
}
/**
 * Inherit from `Stream`.
 */


util.inherits(Response, Stream); // eslint-disable-next-line new-cap

ResponseBase(Response.prototype);
/**
 * Implements methods of a `ReadableStream`
 */

Response.prototype.destroy = function (err) {
  this.res.destroy(err);
};
/**
 * Pause.
 */


Response.prototype.pause = function () {
  this.res.pause();
};
/**
 * Resume.
 */


Response.prototype.resume = function () {
  this.res.resume();
};
/**
 * Return an `Error` representative of this response.
 *
 * @return {Error}
 * @api public
 */


Response.prototype.toError = function () {
  var req = this.req;
  var method = req.method;
  var path = req.path;
  var msg = "cannot ".concat(method, " ").concat(path, " (").concat(this.status, ")");
  var err = new Error(msg);
  err.status = this.status;
  err.text = this.text;
  err.method = method;
  err.path = path;
  return err;
};

Response.prototype.setStatusProperties = function (status) {
  console.warn('In superagent 2.x setStatusProperties is a private method');
  return this._setStatusProperties(status);
};
/**
 * To json.
 *
 * @return {Object}
 * @api public
 */


Response.prototype.toJSON = function () {
  return {
    req: this.request.toJSON(),
    header: this.header,
    status: this.status,
    text: this.text
  };
};
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