declare var module: any;
declare function require(name:string);
declare var __filename: string;
declare var __dirname: string;

var gulp = require('gulp');
var $ = require('gulp-load-plugins')({ lazy: true });
var debug = require('gulp-debug');
var foreach = require('gulp-foreach');
var gutil = require('gulp-util');
var errorHandler = require('../helpers/errorHandler');
var typeScriptReference = require('./typeScriptReference');

class TypeScriptCompileStream {
  constructor(stream, tsProject) {
    if(!stream, !tsProject) {
      throw new Error('Compile TypeScript setup incorrectly');
    }

    function filter(file) {
      return (!!file.path.match(/[.]ts$/) && !file.path.match(/[.]d.ts$/));
    }


    return stream
      .pipe($["if"](filter,
        $.typescript(tsProject).on('error', errorHandler.onWarning('type-script'))
      ))
      .on('error', errorHandler.onError('type-script'));

  }
}

export = TypeScriptCompileStream;