package com.itechzero.pricemonitor;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * PriceMonitor.java
 * 
 * @author Techzero
 * @Email techzero@163.com
 * @Time 2014-5-21 下午1:24:30
 */
class MyThread extends Thread {
	public void run() {
		try {
			// 此处参数为监控持续分钟数
			PriceMonitor.monitorButton(10);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
};

public class PriceMonitor {
	// 监控的商品URL
	private static String URL = "http://detail.ju.taobao.com/home.htm?spm=608.2214381.3.1.AdPEjn&item_id=38260927591&id=10000002781939";

	// 监视按钮
	public static void monitorButton(int lastMinute) {
		int nowMinute = Integer.parseInt(new SimpleDateFormat("mm").format(new Date()));
		int endMinute = Integer.parseInt(new SimpleDateFormat("mm").format(new Date())) + lastMinute;
		while (nowMinute < endMinute) {
			nowMinute = Integer.parseInt(new SimpleDateFormat("mm").format(new Date()));
			String result[] = getCurrentButtonAndForm(URL, "gb2312").split(",");
			// 当前按钮状态
			String currentButton = result[0];
			// 马上抢 表单
			//String form = result[1];
			String nowTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());
			System.out.println(nowTime + " - 现在按钮是 " + currentButton);

			if (currentButton == "马上抢" || currentButton.equals("马上抢") || currentButton == "还有机会" || currentButton.equals("还有机会")) {
				System.out.println("赶紧下单！");
				try {
					java.awt.Desktop.getDesktop().browse(new URI(URL));
				} catch (Exception e) {
					e.printStackTrace();
				}
				//doPost(form);
				break;
			} else if (currentButton == "卖光了" || currentButton.equals("卖光了") || currentButton.equals("已结束") || currentButton.equals("已结束")) {
				System.out.println("下次再试吧！");
				break;
			} else {
				System.out.println("还没开始呢，再等等吧！");
			}
		}
	}

	// 获取当前按钮状态
	public static String getCurrentButtonAndForm(String url, String encoding) {
		if (url == null || "".equals(url.trim()))
			return null;
		String buttonState = "";
		StringBuffer content = new StringBuffer();
		boolean formFlag = false;
		try {
			// 新建URL对象
			URL u = new URL(url);
			InputStream is = new BufferedInputStream(u.openStream());
			InputStreamReader theHTML = new InputStreamReader(is, encoding != null ? encoding : "gb2312");
			BufferedReader br = new BufferedReader(theHTML);
			String s = "";
			while ((s = br.readLine()) != null) {
				if (s.indexOf("<input type=\"submit\" class=\"buyaction J_BuySubmit\"  title=\"马上抢\" value=\"马上抢\"/>") != -1) {
					buttonState = "马上抢";
				} else if (s.indexOf("<a href=\"#\" class=\"extra  notice J_BuyButtonSub\">开团提醒</a>") != -1) {
					buttonState = "开团提醒";
				} else if (s.indexOf("<div class=\"main-box chance \">") != -1) {
					buttonState = "还有机会";
				} else if (s.indexOf("<span class=\"out floatright\">卖光了...</span>") != -1) {
					buttonState = "卖光了";
				} else if (s.indexOf("<span class=\"out floatright\">已结束...</span>") != -1) {
					buttonState = "已结束";
				}
				if (s.indexOf("<form class=\"J_BuySubForm\" data-ccb=\"0\" data-ques=\"0\" action") != -1) {
					content.append(s + "\r\n");
					formFlag = true;
				}
				if (formFlag == true) {
					if (s.indexOf("<input name=\'_tb_token_\' type=\'hidden\' value") != -1) {
						content.append(s + "\r\n");
					}
					if (s.indexOf("<input type=\"hidden\" name=\"_input_charset\" value") != -1) {
						content.append(s + "\r\n");
					}
					if (s.indexOf("<input type=\"hidden\" name=\"itemId\" value") != -1) {
						content.append(s + "\r\n");
					}
					if (s.indexOf("<input type=\"hidden\" name=\"id\" value") != -1) {
						content.append(s + "\r\n");
					}
					if (s.indexOf("<input type=\"hidden\" name=\"tgType\" value") != -1) {
						content.append(s + "\r\n");
					}
					if (s.indexOf("<input type=\"submit\" class=\"buyaction J_BuySubmit\"") != -1) {
						content.append(s + "\r\n");
					}
					if (s.indexOf("</form>") != -1) {
						content.append(s + "\r\n");
					}
				}
				if (s.indexOf("<div class=\"time-banner\">") != -1) {
					break;
				}
			}
			br.close();
		} catch (Exception e) {
			System.err.println(e);
			return "Open URL Error";
		}
		return buttonState + "," + content;
	}

	// 提交表单
	public static String doPost(String form) {
		StringBuffer content = new StringBuffer();
		try {
			URLConnection connection = new URL(URL).openConnection();
			connection.setDoOutput(true);
			OutputStreamWriter os = new OutputStreamWriter(connection.getOutputStream(), "UTF-8");
			os.write(form);
			os.flush();
			os.close();
			InputStream is = connection.getInputStream();
			InputStreamReader theHTML = new InputStreamReader(is);
			BufferedReader br = new BufferedReader(theHTML);
			String s = "";
			while ((s = br.readLine()) != null) {
				content.append(s + "\r\n");
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		// 返回提交表单后返回的页面内容
		return content.toString();
	}
	
	// 登录
	public static void doLogin(String username, String password) {
		String form = "<form id=\"J_StaticForm\" action=\"https://login.taobao.com/member/login.jhtml\" method=\"post\" autocomplete=\"on\"><input type=\"text\" name=\"TPL_username\" id=\"TPL_username_1\" value=\"" + username + "\"><input type=\"password\" name=\"TPL_password\" id=\"TPL_password_1\" value=\"" + password + "\"><input type=\"hidden\" id=\"J_TPL_redirect_url\" name=\"TPL_redirect_url\" value=\"http://www.taobao.com/?spm=a2107.1.1000340.1.AL2Mpn\"><button type=\"submit\" id=\"J_SubmitStatic\">登　录</button></form>";
		doPost(form);
	}

	public static void main(String[] args) {
		//doLogin();
		// new MyThread().start();
		// new MyThread().start();
		// new MyThread().start();
		// new MyThread().start();
		// new MyThread().start();
		// new MyThread().start();
		// new MyThread().start();
		new MyThread().start();
	}
}