package com.foxinmy.weixin4j.pay.api;
   
   import com.alibaba.fastjson.TypeReference;
   import com.foxinmy.weixin4j.exception.WeixinException;
   import com.foxinmy.weixin4j.http.weixin.WeixinResponse;
   import com.foxinmy.weixin4j.pay.model.WeixinPayAccount;
   import com.foxinmy.weixin4j.pay.payment.coupon.CouponDetail;
   import com.foxinmy.weixin4j.pay.payment.coupon.CouponResult;
   import com.foxinmy.weixin4j.pay.payment.coupon.CouponStock;
  import com.foxinmy.weixin4j.util.StringUtil;
  import com.foxinmy.weixin4j.xml.XmlStream;
  
  import java.util.Map;
  
  /**
   * 代金券API
   *
   * @className CouponApi
   * @author jinyu(foxinmy@gmail.com)
   * @date 2015年3月25日
   * @since JDK 1.6
   * @see <a href=
   *      "https://pay.weixin.qq.com/wiki/doc/api/tools/sp_coupon.php?chapter=12_1">代金券</a>
   */
  public class CouponApi extends MchApi {
  
  	public CouponApi(WeixinPayAccount weixinAccount) {
  		super(weixinAccount);
  	}
  
  	/**
  	 * 发放代金券(需要证书)
  	 *
  	 * @param couponStockId
  	 *            代金券批次id
  	 * @param partnerTradeNo
  	 *            商户发放凭据号（格式：商户id+日期+流水号），商户侧需保持唯一性
  	 * @param openId
  	 *            用户的openid
  	 * @param opUserId
  	 *            操作员帐号, 默认为商户号 可在商户平台配置操作员对应的api权限 可为空
  	 * @return 发放结果
  	 * @see CouponResult
  	 * @see <a href=
  	 *      "https://pay.weixin.qq.com/wiki/doc/api/tools/sp_coupon.php?chapter=12_3">发放代金券接口</a>
  	 * @throws WeixinException
  	 */
  	public CouponResult sendCoupon(String couponStockId, String partnerTradeNo,
  			String openId, String opUserId) throws WeixinException {
  		Map<String, String> map = createBaseRequestMap(null);
  		map.put("coupon_stock_id", couponStockId);
  		map.put("partner_trade_no", partnerTradeNo);
  		map.put("openid", openId);
  		// openid记录数（目前支持num=1）
  		map.put("openid_count", "1");
  		// 操作员帐号, 默认为商户号 可在商户平台配置操作员对应的api权限
  		if (StringUtil.isBlank(opUserId)) {
  			opUserId = weixinAccount.getMchId();
  		}
  		map.put("op_user_id", opUserId);
  		map.put("version", "1.0");
  		map.put("type", "XML");
  		map.put("sign", weixinSignature.sign(map));
  		String param = XmlStream.map2xml(map);
  		WeixinResponse response = getWeixinSSLExecutor().post(
  				getRequestUri("coupon_send_uri"), param);
  		return response.getAsObject(new TypeReference<CouponResult>() {
  		});
  	}
  
  	/**
  	 * 查询代金券批次
  	 *
  	 * @param couponStockId
  	 *            代金券批次ID
  	 * @return 代金券批次信息
  	 * @see CouponStock
  	 * @see <a href=
  	 *      "https://pay.weixin.qq.com/wiki/doc/api/tools/sp_coupon.php?chapter=12_4">查询代金券批次信息接口</a>
  	 * @throws WeixinException
  	 */
  	public CouponStock queryCouponStock(String couponStockId)
  			throws WeixinException {
  		Map<String, String> map = createBaseRequestMap(null);
  		map.put("coupon_stock_id", couponStockId);
  		map.put("sign", weixinSignature.sign(map));
  		String param = XmlStream.map2xml(map);
  		WeixinResponse response = weixinExecutor.post(
  				getRequestUri("couponstock_query_uri"), param);
  		return response.getAsObject(new TypeReference<CouponStock>() {
  		});
  	}
  
  	/**
  	 * 查询代金券详细
  	 *
  	 * @param openId
  	 *            用户ID
  	 * @param couponId
 	 *            代金券ID
 	 * @param stockId
 	 *            代金劵对应的批次号
 	 * @return 代金券详细信息
 	 * @see CouponDetail
 	 * @see <a href=
 	 *      "https://pay.weixin.qq.com/wiki/doc/api/tools/sp_coupon.php?chapter=12_5">查询代金券详细信息接口</a>
 	 * @throws WeixinException
 	 */
 	public CouponDetail queryCouponDetail(String openId, String couponId,
 			String stockId) throws WeixinException {
 		Map<String, String> map = createBaseRequestMap(null);
 		map.put("openid", openId);
 		map.put("coupon_id", couponId);
 		map.put("stock_id", stockId);
 		map.put("sign", weixinSignature.sign(map));
 		String param = XmlStream.map2xml(map);
 		WeixinResponse response = weixinExecutor.post(
 				getRequestUri("coupondetail_query_uri"), param);
 		return response.getAsObject(new TypeReference<CouponDetail>() {
 		});
 	}
 }