/*
 * Verrückte Turing-Maschinen — A turing complete game
 * Copyright (C) 2016 Christian Fraß <vidofnir@folksprak.org>
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

module mod_vtm_helfer
	{
		
		/**
		 * @author kcf <vidofnir@folksprak.org>
		 */
		function einrueckung(tiefe : int, zeichen : string = "\t") : string
			{
				return ((tiefe === 0) ? "" : (zeichen + einrueckung(tiefe-1)));
			}
		
		
		/**
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export interface schnittstelle_xmlknoten
			{
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 */
				darstellen(tiefe ?: int) : string;
				
			}
		
		
		/**
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export class klasse_xmlknoten_text
			implements schnittstelle_xmlknoten
			{
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 */
				private inhalt : string;
				
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 */
				public constructor(inhalt : string)
					{
						this.inhalt = inhalt;
					}
				
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 * @implementation
				 */
				public darstellen(tiefe : int = 0) : string
					{
						return this.inhalt;
					}
				
			}
		
		
		/**
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export class klasse_xmlknoten_normal
			implements schnittstelle_xmlknoten
			{
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 */
				private name : string;
				
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 */
				private attribute : {[schluessel : string] : string} = {};
				
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 */
				private kinder : Array<schnittstelle_xmlknoten> = [];
				
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 */
				public constructor(name : string, attribute : {[schluessel : string] : string} = {}, kinder : Array<schnittstelle_xmlknoten> = [])
					{
						this.name = name;
						this.attribute = attribute;
						this.kinder = kinder;
					}
				
				
				/**
				 * @author kcf <vidofnir@folksprak.org>
				 * @implementation
				 */
				public darstellen(tiefe : int = 0) : string
					{
						let str : string = "";
						// anfang
						{
							let str_anfang : string = "";
							str_anfang += this.name;
							// attribute
							{
								let str_attribute : string = "";
								Object.keys(this.attribute).forEach
									(
										schluessel =>
											{
												let wert : string = this.attribute[schluessel];
												str_attribute += (" " + schluessel + "=" + "\"" +  wert + "\"");
											}
									)
								;
								str_anfang += str_attribute;
							}
							str_anfang = (einrueckung(tiefe) + "<" + str_anfang + ">" + "\n");
							str += str_anfang;
						}
						// kinder
						{
							this.kinder.forEach(kind => (str += kind.darstellen(tiefe+1)));
						}
						// ende
						{
							let str_ende : string = "";
							str_ende += this.name;
							str_ende = (einrueckung(tiefe) + "<" + "/" + str_ende + ">" + "\n");
							str += str_ende;
						}
						return str;
					}
				
			}
		
	}