package com.aida.seller.common.exception;

import com.aida.seller.common.result.Response;
import com.aida.seller.common.result.ResultEnum;
import jakarta.servlet.http.HttpServletRequest;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.BindException;
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;

import java.util.stream.Collectors;

@Slf4j
@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(UnauthorizedException.class)
    public ResponseEntity<Object> handleUnauthorizedException(UnauthorizedException e) {
        log.error("Unauthorized: {}", e.getMessage());
        return new ResponseEntity<>(
                Response.fail(401, e.getMessage()),
                HttpStatus.UNAUTHORIZED
        );
    }

    @ExceptionHandler(BusinessException.class)
    public Response<?> handleBusinessException(BusinessException e) {
        log.error("业务异常: code={}, msg={}", e.getCode(), e.getMsg());
        return Response.fail(e.getCode(), e.getMsg());
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Response<?> handleValidationException(MethodArgumentNotValidException e) {
        String message = e.getBindingResult().getFieldErrors().stream()
                .map(FieldError::getDefaultMessage)
                .collect(Collectors.joining(", "));
        log.error("参数校验异常: {}", message);
        return Response.fail(ResultEnum.PARAMETER_ERROR.getCode(), message);
    }

    @ExceptionHandler(BindException.class)
    public Response<?> handleBindException(BindException e) {
        String message = e.getBindingResult().getFieldErrors().stream()
                .map(FieldError::getDefaultMessage)
                .collect(Collectors.joining(", "));
        log.error("参数绑定异常: {}", message);
        return Response.fail(ResultEnum.PARAMETER_ERROR.getCode(), message);
    }

    @ExceptionHandler(Exception.class)
    public Response<?> handleException(Exception e) {
        log.error("系统异常: ", e);
        return Response.error("system error");
    }
    /**
     * 处理MinIO异常
     */
    @ExceptionHandler(MinioException.class)
    public ResponseEntity<Object> handleMinioException(MinioException e) {
        log.error("[MinioException] {}", e.getMessage(), e);
        return new ResponseEntity<>(
                Response.error(e.getMessage()),
                HttpStatus.INTERNAL_SERVER_ERROR
        );
    }
}