package com.zd.common.security.handler;

import javax.servlet.http.HttpServletRequest;

import com.zd.common.core.exception.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.data.redis.RedisSystemException;
import org.springframework.validation.BindException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import com.zd.common.core.constant.HttpStatus;
import com.zd.common.core.utils.StringUtils;
import com.zd.common.core.web.domain.AjaxResult;
import org.springframework.web.multipart.MaxUploadSizeExceededException;

/**
 * 全局异常处理器
 *
 * @author zd
 */
@RestControllerAdvice
public class GlobalExceptionHandler {
    private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);

    /**
     * 权限异常
     */
    @ExceptionHandler(PreAuthorizeException.class)
    public AjaxResult handlePreAuthorizeException(PreAuthorizeException e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',权限校验失败'{}'", requestURI, e.getMessage());
        return AjaxResult.error(HttpStatus.FORBIDDEN, "没有权限，请联系管理员授权");
    }

    /**
     * 请求方式不支持
     */
    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
    public AjaxResult handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException e,
                                                          HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',不支持'{}'请求", requestURI, e.getMethod());
        return AjaxResult.error(e.getMessage());
    }

    /**
     * 业务异常
     */
    @ExceptionHandler(ServiceException.class)
    public AjaxResult handleServiceException(ServiceException e, HttpServletRequest request) {
        log.error(e.getMessage(), e);
        Integer code = e.getCode();
        return StringUtils.isNotNull(code) ? AjaxResult.error(code, e.getMessage(), e.getData()) : AjaxResult.error(e.getMessage());
    }

    /**
     * 主键重复异常
     */
    @ExceptionHandler(DuplicateKeyException.class)
    public AjaxResult handleDuplicateKeyException(DuplicateKeyException e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',发生主键重复异常.", requestURI, e);
        return AjaxResult.error("存在重复数据，操作失败！");
    }

    /**
     * 拦截未知的运行时异常
     */
    @ExceptionHandler(RuntimeException.class)
    public AjaxResult handleRuntimeException(RuntimeException e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',发生未知异常.", requestURI, e);
        return AjaxResult.error(e.getMessage());
    }

    /**
     * 系统异常
     */
    @ExceptionHandler(Exception.class)
    public AjaxResult handleException(Exception e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',发生系统异常.", requestURI, e);
        return AjaxResult.error(e.getMessage());
    }

    /**
     * 自定义验证异常
     */
    @ExceptionHandler(BindException.class)
    public AjaxResult handleBindException(BindException e) {
        log.error(e.getMessage(), e);
        String message = e.getAllErrors().get(0).getDefaultMessage();
        return AjaxResult.error(message);
    }

    /**
     * 自定义验证异常
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Object handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
        log.error(e.getMessage(), e);
        String message = e.getBindingResult().getFieldError().getDefaultMessage();
        return AjaxResult.error(message);
    }

    /**
     * Reids 异常
     */
    @ExceptionHandler(RedisSystemException.class)
    public Object handleRedisSystemException(RedisSystemException e) {
        log.error(e.getMessage(), e);
        return AjaxResult.error("正在重新连接...请重试！");
    }

    /**
     * 数据上传过大
     */
    @ExceptionHandler(MaxUploadSizeExceededException.class)
    public Object MaxUploadSizeExceededExceptionHandler(MaxUploadSizeExceededException e) {
        log.error("MaxUploadSizeExceededException: "+ e);
        e.printStackTrace();
        return AjaxResult.error("上传文件太大!");
    }

    /**
     * 内部认证异常
     */
    @ExceptionHandler(InnerAuthException.class)
    public AjaxResult handleInnerAuthException(InnerAuthException e) {
        return AjaxResult.error(e.getMessage());
    }

    /**
     * 演示模式异常
     */
    @ExceptionHandler(DemoModeException.class)
    public AjaxResult handleDemoModeException(DemoModeException e) {
        return AjaxResult.error("演示模式，不允许操作");
    }

    /**
     * 不会滚异常
     */
    @ExceptionHandler(NoRollException.class)
    public AjaxResult handleNoRollException(NoRollException e) {
        return AjaxResult.error(e.getMessage());
    }
}
