package com.dy.common.webUtil;

import io.swagger.v3.oas.annotations.Hidden;
import io.swagger.v3.oas.annotations.responses.ApiResponse;
import io.swagger.v3.oas.annotations.responses.ApiResponses;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.servlet.RequestDispatcher;
import jakarta.servlet.http.HttpServletRequest;
import org.springframework.boot.web.servlet.error.ErrorController;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

/**
 * 全局出错处理，web请求进入Controller之前发生的错误及异常都由此类处理，
 * 例如请求路径不正确，以及在Filter中抛出的异常等
 * 而在Controller中抛出的异常由GlExceptionHandler或GlExceptionAspect处理
 */
//此错误处理类并不对外提供服务，所以其不用暴露接口
@Hidden //在SpringDoc中隐藏本接口API
@Tag(name = "全局出错处理", description = "web请求进入Controller之前发生的错误及异常都由此类处理")
@ApiResponses(@ApiResponse(responseCode = ResultCodeMsg.RsCode.ERROR_CODE, description = "返回出错信息"))
@RequestMapping(produces = "application/json")
@RestController
public class GlErrorCtrl implements ErrorController {
    //此错误处理类并不对外提供服务，所以其不用暴露接口
    //@Operation(summary = "错误处理方式", description = "返回BaseResponse类型的数据")
    @RequestMapping(value = "/error", method = RequestMethod.GET)
    public BaseResponse error(HttpServletRequest request) {
        // get error status code
        Object status = request.getAttribute(RequestDispatcher.ERROR_STATUS_CODE);
        /*
        if (status != null) {
            // handle 404 error
            if (status.toString().equals("404")) {
                return BaseResponseUtils.buildFail("error-404");
            }
            // handle 500 error
            else if (status.toString().equals("500")) {
                return BaseResponseUtils.buildFail("error-500");
            }
        }
        */
        return BaseResponseUtils.buildFail("进入Controller之前发生错误" + (status==null?"":("，错误码：" + status.toString()))) ;
    }

}