/**
 * Copyright (c) 2017 The xterm.js authors. All rights reserved.
 * @license MIT
 */

declare var exports: any;
declare var define: any;

(function (addon) {
  if (typeof window !== 'undefined' && 'Terminal' in window) {
    /**
     * Plain browser environment
     */
    addon((<any>window).Terminal);
  } else if (typeof exports === 'object' && typeof module === 'object') {
    /**
     * CommonJS environment
     */
    module.exports = addon(require('../../Terminal').Terminal);
  } else if (typeof define === 'function') {
    /**
     * Require.js is available
     */
    define(['../../xterm'], addon);
  }
})((Terminal: any) => {
  Terminal.prototype.winptyCompatInit = function(): void {
    // Don't do anything when the platform is not Windows
    const isWindows = ['Windows', 'Win16', 'Win32', 'WinCE'].indexOf(navigator.platform) >= 0;
    if (!isWindows) {
      return;
    }

    // Winpty does not support wraparound mode which means that lines will never
    // be marked as wrapped. This causes issues for things like copying a line
    // retaining the wrapped new line characters or if consumers are listening
    // in on the data stream.
    //
    // The workaround for this is to listen to every incoming line feed and mark
    // the line as wrapped if the last character in the previous line is not a
    // space. This is certainly not without its problems, but generally on
    // Windows when text reaches the end of the terminal it's likely going to be
    // wrapped.
    this.on('lineFeed', () => {
      const line = this.buffer.lines.get(this.buffer.ybase + this.buffer.y - 1);
      const lastChar = line[this.cols - 1];
      if (lastChar[3] !== 32 /* ' ' */) {
        const nextLine = this.buffer.lines.get(this.buffer.ybase + this.buffer.y);
        (<any>nextLine).isWrapped = true;
      }
    });
  };
});