package com.example.erp.common.exception;

import com.example.erp.common.response.Result;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

@Slf4j
@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(BizException.class)
    public Result<Void> handleBizException(BizException e) {
        return Result.fail(e.getCode(), e.getMessage());
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Result<Void> handleValidation(MethodArgumentNotValidException e) {
        FieldError fe = e.getBindingResult().getFieldErrors().stream().findFirst().orElse(null);
        String msg = fe != null ? fe.getDefaultMessage() : "参数校验失败";
        return Result.fail(40001, msg);
    }

    @ExceptionHandler(Exception.class)
    public Result<Void> handleException(Exception e) {
        log.error("未处理异常", e);
        return Result.fail(99000, "系统内部错误");
    }
}