package com.gist.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;

import com.gist.bean.Access_token;
import com.google.gson.Gson;

/**
 * @author 高遠</n> 郵箱：wgyscsf@163.com</n> 博客 http://blog.csdn.net/wgyscsf</n>
 *  編寫時期 2016-4-7 下午5:44:33
 */
public class AccessTokenUtils {
 private static final long MAX_TIME = 7200 * 1000;// 微信允許最長Access_token有效時間（ms）
 private static final String TAG = "WeixinApiTest";// TAG
 private static final String APPID = "wx889b020b3666b0b8";// APPID
 private static final String SECERT = "6da7676bf394f0a9f15fbf06027856bb";// 秘鑰

 /*
 * 該方法實現獲取Access_token、保存并且只保存2小時Access_token。如果超過兩個小時重新獲取；如果沒有超過兩個小時，直接獲取。該方法依賴
 * ：public static String getAccessToken()；
 * 
 * 思路:將獲取到的Access_token和當前時間存儲到file里，
 * 取出時判斷當前時間和存儲里面的記錄的時間的時間差，如果大于MAX_TIME,重新獲取，并且將獲取到的存儲到file替換原來的內容
 * ，如果小于MAX_TIME，直接獲取。
 */
 // 為了調用不拋異常，這里全部捕捉異常，代碼有點長
 public static String getSavedAccess_token() {
 Gson gson = new Gson();// 第三方jar,處理json和bean的轉換
 String mAccess_token = null;// 需要獲取的Access_token；
 FileOutputStream fos = null;// 輸出流
 FileInputStream fis = null;// 輸入流
 File file = new File("temp_access_token.temp");// Access_token保存的位置
 try {
  // 如果文件不存在，創(chuàng)建
  if (!file.exists()) {
  file.createNewFile();
  }
 } catch (Exception e1) {
  e1.printStackTrace();
 }
 // 如果文件大小等于0，說明第一次使用，存入Access_token
 if (file.length() == 0) {
  try {
  mAccess_token = getAccessToken();// 獲取AccessToken
  Access_token at = new Access_token();
  at.setAccess_token(mAccess_token);
  at.setExpires_in(System.currentTimeMillis() + "");// 設置存入時間
  String json = gson.toJson(at);
  fos = new FileOutputStream(file, false);// 不允許追加
  fos.write((json).getBytes());// 將AccessToken和當前時間存入文件
  fos.close();
  return mAccess_token;
  } catch (Exception e) {
  e.printStackTrace();
  }
 } else {
  // 讀取文件內容
  byte[] b = new byte[2048];
  int len = 0;
  try {
  fis = new FileInputStream(file);
  len = fis.read(b);
  } catch (IOException e1) {
  // TODO Auto-generated catch block
  e1.printStackTrace();
  }
  String mJsonAccess_token = new String(b, 0, len);// 讀取到的文件內容
  Access_token access_token = gson.fromJson(mJsonAccess_token,
   new Access_token().getClass());
  if (access_token.getExpires_in() != null) {
  long saveTime = Long.parseLong(access_token.getExpires_in());
  long nowTime = System.currentTimeMillis();
  long remianTime = nowTime - saveTime;
  // System.out.println(TAG + "時間差：" + remianTime + "ms");
  if (remianTime < MAX_TIME) {
   Access_token at = gson.fromJson(mJsonAccess_token,
    new Access_token().getClass());
   mAccess_token = at.getAccess_token();
   return mAccess_token;
  } else {
   mAccess_token = getAccessToken();
   Access_token at = new Access_token();
   at.setAccess_token(mAccess_token);
   at.setExpires_in(System.currentTimeMillis() + "");
   String json = gson.toJson(at);
   try {
   fos = new FileOutputStream(file, false);// 不允許追加
   fos.write((json).getBytes());
   fos.close();
   } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
   }
   return mAccess_token;
  }

  } else {
  return null;
  }
 }

 return mAccess_token;
 }

 /*
 * 獲取微信服務器AccessToken。該部分和getAccess_token() 一致，不再加注釋
 */
 public static String getAccessToken() {
 String urlString = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="
  + APPID + "&secret=" + SECERT;
 String reslut = null;
 try {
  URL reqURL = new URL(urlString);
  HttpsURLConnection httpsConn = (HttpsURLConnection) reqURL
   .openConnection();
  InputStreamReader isr = new InputStreamReader(
   httpsConn.getInputStream());
  char[] chars = new char[1024];
  reslut = "";
  int len;
  while ((len = isr.read(chars)) != -1) {
  reslut += new String(chars, 0, len);
  }
  isr.close();
 } catch (IOException e) {

  e.printStackTrace();
 }
 Gson gson = new Gson();
 Access_token access_token = gson.fromJson(reslut,
  new Access_token().getClass());
 if (access_token.getAccess_token() != null) {
  return access_token.getAccess_token();
 } else {
  return null;
 }
 }
}

 {
 "button":[
 { 
  "type":"click",
  "name":"今日歌曲",
  "key":"V1001_TODAY_MUSIC"
 },
 {
  "name":"菜單",
  "sub_button":[
  { 
  "type":"view",
  "name":"搜索",
  "url":"http://www.soso.com/"
  },
  {
  "type":"view",
  "name":"視頻",
  "url":"http://v.qq.com/"
  },
  {
  "type":"click",
  "name":"贊一下我們",
  "key":"V1001_GOOD"
  }]
 }]
 }

//按鈕基類
public class BaseButton {
 private String type;
 private String name;
 private String key;
 private String url;
 private String media_id;
} 
//子按鈕
public class SonButton extends BaseButton {
 private String sub_button;
}
//父按鈕
public class FatherButton extends BaseButton {
private String button;//可能直接一個父按鈕做響應
@SerializedName("sub_button")//為了保證Gson解析后子按鈕的名字是“sub_button”，具體用法請搜索
private List<SonButton> sonButtons;//可能有多個子按鈕
}

public class Menu {
@SerializedName("button")
private List<FatherButton> fatherButtons;
}

//匹配的json對應的json
public class MatchRule {
private String group_id;
private String sex;
private String client_platform_type;
private String country;
private String province;
private String city;
private String language;
}

//修改Menu.java
public class Menu {
@SerializedName("button")
private List<FatherButton> fatherButtons;
private MatchRule matchrule;
}

 /*
 * 創(chuàng)建自定義菜單。
 */
 @Test
 public void createCommMenu() {
 String ACCESS_TOKEN = AccessTokenUtils.getAccessToken();// 獲取AccessToken，AccessTokenUtils是封裝好的類
 // 拼接api要求的httpsurl鏈接
 String urlString = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token="
  + ACCESS_TOKEN;
 try {
  // 創(chuàng)建一個url
  URL reqURL = new URL(urlString);
  // 拿取鏈接
  HttpsURLConnection httpsConn = (HttpsURLConnection) reqURL
   .openConnection();
  httpsConn.setDoOutput(true);
  // 取得該連接的輸出流，以讀取響應內容
  OutputStreamWriter osr = new OutputStreamWriter(
   httpsConn.getOutputStream());
  osr.write(getMenuJson());// 使用本類外部方法getMenuJson()
  osr.close();

  // 返回結果
  InputStreamReader isr = new InputStreamReader(
   httpsConn.getInputStream());
  // 讀取服務器的響應內容并顯示
  char[] chars = new char[1024];
  String reslut = "";
  int len;
  while ((len = isr.read(chars)) != -1) {
  reslut += new String(chars, 0, len);
  }
  System.out.println("返回結果:" + reslut);
  isr.close();
 } catch (IOException e) {
  e.printStackTrace();
 }
 }

 public String getMenuJson() {
 Gson gson = new Gson();// json處理工具

 Menu menu = new Menu();// 菜單類
 List<FatherButton> fatherButtons = new ArrayList<FatherButton>();// 菜單中的父按鈕集合
 // -----------
 // 父按鈕1
 FatherButton fb1 = new FatherButton();
 fb1.setName("click");
 fb1.setType("click");
 fb1.setKey("10");
 // -------------
 // 父按鈕2
 FatherButton fb2 = new FatherButton();
 fb2.setName("父按鈕2");
 List<SonButton> sonButtons2 = new ArrayList<SonButton>();// 子按鈕的集合

 // 子按鈕2-1
 SonButton sb21 = new SonButton();
 sb21.setName("view");
 sb21.setUrl("http://www.baidu.com");
 sb21.setType("view");
 // 子按鈕2-2
 SonButton sb22 = new SonButton();
 sb22.setName("scancode_push");
 sb22.setType("scancode_push");
 sb22.setKey("22");
 // 子按鈕2-3
 SonButton sb23 = new SonButton();
 sb23.setName("scancode_waitmsg");
 sb23.setType("scancode_waitmsg");
 sb23.setKey("23");
 // 子按鈕2-4
 SonButton sb24 = new SonButton();
 sb24.setName("pic_sysphoto");
 sb24.setType("pic_sysphoto");
 sb24.setKey("24");
 // 子按鈕2-5
 SonButton sb25 = new SonButton();
 sb25.setName("pic_photo_or_album");
 sb25.setType("pic_photo_or_album");
 sb25.setKey("25");

 // 添加子按鈕到子按鈕集合
 sonButtons2.add(sb21);
 sonButtons2.add(sb22);
 sonButtons2.add(sb23);
 sonButtons2.add(sb24);
 sonButtons2.add(sb25);

 // 將子按鈕放到2-0父按鈕集合
 fb2.setSonButtons(sonButtons2);

 // ------------------
 // 父按鈕3
 FatherButton fb3 = new FatherButton();
 fb3.setName("父按鈕3");
 List<SonButton> sonButtons3 = new ArrayList<SonButton>();

 // 子按鈕3-1
 SonButton sb31 = new SonButton();
 sb31.setName("pic_weixin");
 sb31.setType("pic_weixin");
 sb31.setKey("31");
 // 子按鈕3-2
 SonButton sb32 = new SonButton();
 sb32.setName("locatselect");
 sb32.setType("location_select");
 sb32.setKey("32");
 // // 子按鈕3-3-->測試不了，因為要media_id。這需要調用素材id.
 // SonButton sb33 = new SonButton();
 // sb33.setName("media_id");
 // sb33.setType("media_id");
 // sb33.setMedia_id("???");
 // // 子按鈕3-4-->測試不了，因為要media_id。這需要調用素材id.
 // SonButton sb34 = new SonButton();
 // sb34.setName("view_limited");
 // sb34.setType("view_limited");
 // sb34.setMedia_id("???");

 // 添加子按鈕到子按鈕隊列
 sonButtons3.add(sb31);
 sonButtons3.add(sb32);
 // sonButtons3.add(sb33);
 // sonButtons3.add(sb34);

 // 將子按鈕放到3-0父按鈕隊列
 fb3.setSonButtons(sonButtons3);
 // ---------------------

 // 將父按鈕加入到父按鈕集合
 fatherButtons.add(fb1);
 fatherButtons.add(fb2);
 fatherButtons.add(fb3);

 // 將父按鈕隊列加入到菜單欄
 menu.setFatherButtons(fatherButtons);
 String json = gson.toJson(menu);
 System.out.println(json);// 測試輸出
 return json;

 }

// 拼接api要求的httpsurl鏈接
String urlString = "https://api.weixin.qq.com/cgi-bin/menu/addconditional?access_token="
  + ACCESS_TOKEN; 

// -----
// 從此處開始設置個性菜單
MatchRule matchrule = new MatchRule();
matchrule.setSex("2");// 男生
menu.setMatchrule(matchrule);
// ----