package com.llisoft.pay.controller;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.llisoft.pay.service.AliPayService;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;

@Api(tags="支付宝回调")
@Controller
@RequestMapping("/alipay")
public class AliPayController {
	
	private Logger logger = LoggerFactory.getLogger(AliPayController.class);
	
	@Autowired
	private AliPayService aliPayService;
	
	
	@ApiOperation(value="同步回调")
	@GetMapping("/return")
	public String returns(HttpServletRequest request) throws Exception {
		Map<String, String> resultMap = this.getParamMap(request);
		logger.debug("收到支付宝同步回调: {}", resultMap);
		return "redirect:" + aliPayService.doReturn(resultMap);
	}
	
	@ApiOperation(value="异步通知")
	@PostMapping(value="/notify")
	public @ResponseBody String notify(HttpServletRequest request) throws Exception {
		Map<String, String> resultMap = this.getParamMap(request);
		logger.debug("收到支付宝异步通知: {}", resultMap);
		try {
			if (aliPayService.doNotify(resultMap)) {
				logger.debug("支付宝异步通知处理成功!");
				return "success";
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		logger.error("支付宝异步通知处理失败!");
		return null;
	}
	
	
	/**
	 * 获取参数Map<String, String>
	 * @param request
	 * @return
	 */
	private Map<String, String> getParamMap(HttpServletRequest request){
		Map<String, String> returnMap = new HashMap<String, String>();
		Map<String, String[]> paramMap = request.getParameterMap();
		for (String key: paramMap.keySet()) {
			String[] values = paramMap.get(key);
			if (values!=null && values.length>0) {
				returnMap.put(key, values[0]);
			}
		}
		return returnMap;
	}

}