package com.xuqm.tenant.controller;

import com.xuqm.common.exception.BusinessException;
import com.xuqm.common.model.ApiResponse;
import org.springframework.http.ResponseEntity;
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;

@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(BusinessException.class)
    public ResponseEntity<ApiResponse<Void>> handle(BusinessException ex) {
        return ResponseEntity.status(ex.getCode())
                .body(ApiResponse.error(ex.getCode(), ex.getMessage()));
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public ResponseEntity<ApiResponse<Void>> handle(MethodArgumentNotValidException ex) {
        String message = ex.getBindingResult().getFieldErrors().stream()
                .map(FieldError::getDefaultMessage)
                .collect(Collectors.joining("; "));
        return ResponseEntity.badRequest().body(ApiResponse.badRequest(message));
    }

    @ExceptionHandler(Exception.class)
    public ResponseEntity<ApiResponse<Void>> handle(Exception ex) {
        return ResponseEntity.internalServerError()
                .body(ApiResponse.error(500, "服务器内部错误: " + ex.getMessage()));
    }
}