package com.fuint.framework.exception;

import com.fuint.framework.web.ResponseObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.validation.BindException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.MissingPathVariableException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
import javax.servlet.http.HttpServletRequest;

/**
 * 全局异常处理器
 *
 * Created by FSQ
 * CopyRight https://www.fuint.cn
 */
@RestControllerAdvice
public class GlobalExceptionHandler {

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

    @ExceptionHandler(IllegalArgumentException.class)
    public ResponseObject handleHttpRequestMethodNotSupported(IllegalArgumentException e,HttpServletRequest request){
        String requestURI = request.getRequestURI();
        e.printStackTrace();
        return new ResponseObject(400, e.getMessage(), null);
    }

    /**
     * 请求方式不支持
     */
    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
    public ResponseObject handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',不支持'{}'请求", requestURI, e.getMethod());
        return new ResponseObject(201, e.getMessage(), null);
    }

    /**
     * 业务异常
     */
    @ExceptionHandler(BusinessCheckException.class)
    public ResponseObject handleServiceException(BusinessCheckException e) {
        log.error(e.getMessage(), e);
        return new ResponseObject(201, e.getMessage(), null);
    }

    /**
     * 请求路径中缺少必需的路径变量
     */
    @ExceptionHandler(MissingPathVariableException.class)
    public ResponseObject handleMissingPathVariableException(MissingPathVariableException e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求路径中缺少必需的路径变量'{}',发生系统异常.", requestURI, e);
        return new ResponseObject(201, String.format("请求路径中缺少必需的路径变量[%s]", e.getVariableName()), null);
    }

    /**
     * 请求参数类型不匹配
     */
    @ExceptionHandler(MethodArgumentTypeMismatchException.class)
    public ResponseObject handleMethodArgumentTypeMismatchException(MethodArgumentTypeMismatchException e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求参数类型不匹配'{}',发生系统异常.", requestURI, e);
        return new ResponseObject(201, String.format("请求参数类型不匹配，参数[%s]要求类型为：'%s'，但输入值为：'%s'", e.getName(), e.getRequiredType().getName(), e.getValue()), null);
    }

    /**
     * 拦截未知的运行时异常
     */
    @ExceptionHandler(RuntimeException.class)
    public ResponseObject handleRuntimeException(RuntimeException e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',发生未知异常.", requestURI, e);
        e.printStackTrace();
        return new ResponseObject(201, e.getMessage(), null);
    }

    /**
     * 系统异常
     */
    @ExceptionHandler(Exception.class)
    public ResponseObject handleException(Exception e, HttpServletRequest request) {
        String requestURI = request.getRequestURI();
        log.error("请求地址'{}',发生系统异常.", requestURI, e);
        e.printStackTrace();
        return new ResponseObject(201, e.getMessage(), null);
    }

    /**
     * 自定义验证异常
     */
    @ExceptionHandler(BindException.class)
    public ResponseObject handleBindException(BindException e) {
        log.error(e.getMessage(), e);
        String message = e.getAllErrors().get(0).getDefaultMessage();
        return new ResponseObject(201,message, null);
    }

    /**
     * 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 new ResponseObject(201,message, null);
    }
}
