package jnpf.workflow.admin.handle;

import java.util.List;
import java.util.stream.Collectors;

import org.springframework.context.support.DefaultMessageSourceResolvable;
import org.springframework.validation.BindException;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import jakarta.servlet.http.HttpServletRequest;
import jnpf.workflow.admin.result.Result;
import jnpf.workflow.common.exception.BizException;
import jnpf.workflow.common.exception.ResultCode;
import lombok.extern.slf4j.Slf4j;

@Slf4j
@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(BindException.class)
    public Result<?> bindExceptionHandler(BindException e) {
        log.error("接口校验失败！原因是:{}", e.getMessage(), e);
        List<FieldError> fieldErrors = e.getBindingResult().getFieldErrors();
        List<String> collect = fieldErrors.stream().map(DefaultMessageSourceResolvable::getDefaultMessage).collect(Collectors.toList());
        String msg = String.join(",", collect);
        return Result.failed(ResultCode.REQUEST_PARAM_IS_NULL, msg);
    }

    @ExceptionHandler(NullPointerException.class)
    public Result<?> exceptionHandler(HttpServletRequest req, NullPointerException e) {
        log.error("发生空指针异常！原因是:{}", e.getMessage(), e);
        return Result.failed(ResultCode.SYSTEM_EXECUTION_ERROR);
    }

    @ExceptionHandler(BizException.class)
    public Result<?> exceptionHandler(HttpServletRequest req, BizException e) {
        log.error("BizException！原因是:{}", e.getMessage(), e);
        return Result.failed(e.getResultCode(), e.getMessage());
    }

    @ExceptionHandler(Exception.class)
    public Result<?> exceptionHandler(HttpServletRequest req, Exception e) {
        log.error("未知异常！原因是:{}", e.getMessage(), e);
        return Result.failed(e.getMessage());
    }
}