package com.llisoft.pay.config;

import java.util.Objects;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.web.servlet.error.ErrorController;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.llisoft.common.constant.CodeEnum;
import com.llisoft.common.vo.ResponseVo;

/**
 * 框架级异常处理, 覆盖默认/error
 * 根据错误信息返回具体的json结果
 * 模仿 org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController
 * @author YangJie [2018年12月27日]
 */
@RestController
public class ErrorConfig implements ErrorController {
	
	private Logger logger = LoggerFactory.getLogger(ErrorConfig.class);
	

	@RequestMapping("/error")
	public ResponseVo<Object> error(HttpServletRequest request, HttpServletResponse response) {
		response.setStatus(200); // 状态码全部200
		Object statusCode = request.getAttribute("javax.servlet.error.status_code");
		if(Objects.nonNull(statusCode) && statusCode instanceof Integer) {
			int code = Integer.parseInt(statusCode.toString());
			if(code == CodeEnum.C400.getCode()) {
				logger.error("/error: {}", CodeEnum.C400.getMsg());
				return ResponseVo.build(CodeEnum.C400);
			}else if (code == CodeEnum.C401.getCode()) {
				logger.error("/error: {}", CodeEnum.C401.getMsg());
				return ResponseVo.build(CodeEnum.C401);
			}else if (code == CodeEnum.C402.getCode()) {
				logger.error("/error: {}", CodeEnum.C402.getMsg());
				return ResponseVo.build(CodeEnum.C402);
			}else if (code == CodeEnum.C403.getCode()) {
				logger.error("/error: {}", CodeEnum.C403.getMsg());
				return ResponseVo.build(CodeEnum.C403);
			}else if (code == CodeEnum.C404.getCode()) {
				logger.error("/error: {}", CodeEnum.C404.getMsg());
				return ResponseVo.build(CodeEnum.C404);
			}
		}
		logger.error("/error: {}", CodeEnum.C500.getMsg());
		return ResponseVo.build(CodeEnum.C500);
	}

	
	@Override
	public String getErrorPath() {
		return "/error";
	}
	
}