package com.sky.handler;

import com.sky.constant.MessageConstant;
import com.sky.exception.BaseException;
import com.sky.result.Result;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器，处理项目中抛出的业务异常
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 捕获业务异常
     * @param ex
     * @return
     */
    @ExceptionHandler
    public Result exceptionHandler(BaseException ex){
        log.error("异常信息：{}", ex.getMessage());
        return Result.error(ex.getMessage());
    }


    /**
     * 捕获系统级的数据库异常
     * @param ex
     * @return
     */
    @ExceptionHandler
    public Result exceptionHandler(SQLIntegrityConstraintViolationException ex){
        //Duplicate entry 'lisi' for key 'idx_username'
        String message = ex.getMessage();
        log.error("异常信息：{}",message );
        //动态获取错误数据
        if (message.contains("Duplicate entry")) {
            String[] msgs = message.split(" ");
            String username = msgs[2];
//            String msg = username + "已经存在";
            String msg = username + MessageConstant.ALEADY_EXIST;
            return Result.error(msg);
        }

//        return Result.error(ex.getMessage());
        return Result.error(MessageConstant.UNKNOWN_ERROR);
    }

}