package com.yeshi.fanli.util.push;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.yeshi.utils.HttpUtil;

import com.yeshi.fanli.exception.push.VIVOPushException;
import com.yeshi.fanli.util.StringUtil;

import net.sf.json.JSONObject;

/**
 * VIVO的推送帮助
 * 
 * @author Administrator
 *
 */
public class VIVOPushUtil {

	/**
	 * POST请求
	 * 
	 * @param url
	 * @param body
	 * @param headers
	 * @return
	 */
	private static String post(String url, String body, Map<String, String> headers) {
		HttpClient httpClient = new HttpClient();
		PostMethod pm = new PostMethod(url);
		try {
			pm.setRequestEntity(new StringRequestEntity(body, "application/json", "UTF-8"));
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}

		if (headers != null) {
			Iterator<String> its = headers.keySet().iterator();
			while (its.hasNext()) {
				String key = its.next();
				pm.setRequestHeader(key, headers.get(key));
			}
		}

		try {
			httpClient.executeMethod(pm);
			return pm.getResponseBodyAsString();
		} catch (HttpException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}

	/**
	 * 获取授权码
	 * 
	 * @param appId
	 * @param appKey
	 * @param appSecret
	 * @return
	 * @throws VIVOPushException
	 */
	public static String getAuthToken(String appId, String appKey, String appSecret) throws VIVOPushException {
		JSONObject params = new JSONObject();
		long timestamp = System.currentTimeMillis();
		params.put("appId", appId);
		params.put("appKey", appKey);
		params.put("timestamp", timestamp);
		params.put("sign", StringUtil.Md5(appId + appKey + timestamp + appSecret));
		String result = post("https://host:port/message/auth", params.toString(), null);
		JSONObject resultJson = JSONObject.fromObject(result);
		if (resultJson.optInt("result") != 0)
			throw new VIVOPushException(resultJson.optInt("result"), resultJson.optString("desc"));
		return resultJson.optString("authToken");
	}
	
	


}