package com.qxueyou.scc.exercise.service.impl.parser;

import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.lang3.StringUtils;

import com.qxueyou.scc.exercise.service.impl.Node;
import com.qxueyou.scc.exercise.service.impl.ParseResult;
import com.qxueyou.scc.exercise.service.impl.Parser;
import com.qxueyou.scc.exercise.service.impl.node.Item;
import com.qxueyou.scc.exercise.service.impl.node.ItemType;

public class ItemTypeParser extends Parser {

	/**
	 * Ï°ÌâÀàÐ͹ؼü×Ö
	 */
	private static Map<String,String> typeMap = new HashMap<String,String>();
	
	static{
		typeMap.put("µ¥Ñ¡", ItemType.TYPE_SINGLE);
		typeMap.put("µ¥ÏîÑ¡Ôñ", ItemType.TYPE_SINGLE);
		typeMap.put("¶àÑ¡", ItemType.TYPE_MULTI);
		typeMap.put("¶àÏîÑ¡Ôñ", ItemType.TYPE_MULTI);
		typeMap.put("ÅжÏ", ItemType.TYPE_TRUE_OR_FALSE);
	}

	/**
	 * Ï°Ì⿪ʼģʽƥÅä
	 */
	Pattern itemPattern = Pattern.compile("\\d+");

	@Override
	public ParseResult parse(Node node, String str) {
		return parse((ItemType) node, str);
	}

	/**
	 * ½âÎö ItemType
	 * 
	 * @param doc
	 * @param str
	 * @return
	 */
	private ParseResult parse(ItemType itemType, String str) {
		
		// Ï°Ìâ
		Matcher matcher = itemPattern.matcher(str);

		if (matchBegin(matcher) && StringUtils.isNotEmpty(itemType.getType())) {
			Item item = new Item();
			itemType.addNode(item);
			return new ParseResult(false, ParseResult.STEP_NEXT, item);
		}
		
		// ÌâÄ¿ÀàÐÍ
		for (String keyword : typeMap.keySet()) {
			if (str.contains(keyword)) {
				if(itemType.getType().equals(typeMap.get(keyword))){
					return new ParseResult(true, ParseResult.STEP_CUR, null);
				}else{
					return new ParseResult(false, ParseResult.STEP_PRE, null);
				}
			}
		}

		//20150907Ð޸ģº±¾À´·µ»Øtrue£¬Ã»ÓнâÎöµ½Ò»¸öÀàÐÍ£¬Å×µ½Éϲã
		return new ParseResult(false, ParseResult.STEP_PRE, null);

	}

}