package com.xly.erp.common.exception;

import com.xly.erp.common.response.Result;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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;

@RestControllerAdvice
public class GlobalExceptionHandler {

    private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);

    @ExceptionHandler(BizException.class)
    public Result<Void> handleBiz(BizException e) {
        log.warn("BizException code={} msg={}", e.getCode(), e.getMessage());
        return Result.fail(e.getCode(), e.getMessage());
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Result<Void> handleValidation(MethodArgumentNotValidException e) {
        FieldError fe = e.getBindingResult().getFieldError();
        String msg = fe == null
                ? "参数校验失败"
                : fe.getField() + ": " + fe.getDefaultMessage();
        log.warn("ValidationException {}", msg);
        return Result.fail(40001, msg);
    }

    @ExceptionHandler(Exception.class)
    public Result<Void> handleAny(Exception e) {
        log.error("Unhandled exception", e);
        return Result.fail(50000, "系统繁忙");
    }
}