/*
 *      Copyright (c) 2018-2028, Chill Zhuang All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *  Neither the name of the dreamlu.net developer nor the names of its
 *  contributors may be used to endorse or promote products derived from
 *  this software without specific prior written permission.
 *  Author: Chill 庄骞 (smallchill@163.com)
 */
package org.springblade.core.log.error;

import lombok.extern.slf4j.Slf4j;
import org.hibernate.validator.internal.engine.path.PathImpl;
import org.springblade.core.tool.api.R;
import org.springblade.core.tool.api.ResultCode;
import org.springblade.core.tool.utils.StringUtil;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.validation.BindException;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.HttpMediaTypeNotAcceptableException;
import org.springframework.web.HttpMediaTypeNotSupportedException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.MissingServletRequestParameterException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.NoHandlerFoundException;

import javax.servlet.Servlet;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import java.util.Set;

/**
 * 全局异常处理，处理可预见的异常，Order 排序优先级高
 *
 * @author Chill
 */
@Slf4j
@Order(Ordered.HIGHEST_PRECEDENCE)
@AutoConfiguration
@ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.SERVLET)
@ConditionalOnClass({ Servlet.class, DispatcherServlet.class })
@RestControllerAdvice
public class RestExceptionTranslator {

	@ExceptionHandler(MissingServletRequestParameterException.class)
	@ResponseStatus(HttpStatus.BAD_REQUEST)
	public R handleError(MissingServletRequestParameterException e) {
		log.warn("缺少请求参数", e.getMessage());
		String message = String.format("缺少必要的请求参数: %s", e.getParameterName());
		return R.fail(ResultCode.PARAM_MISS, message);
	}

	@ExceptionHandler(MethodArgumentTypeMismatchException.class)
	@ResponseStatus(HttpStatus.BAD_REQUEST)
	public R handleError(MethodArgumentTypeMismatchException e) {
		log.warn("请求参数格式错误", e.getMessage());
		String message = String.format("请求参数格式错误: %s", e.getName());
		return R.fail(ResultCode.PARAM_TYPE_ERROR, message);
	}

	@ExceptionHandler(MethodArgumentNotValidException.class)
	@ResponseStatus(HttpStatus.BAD_REQUEST)
	public R handleError(MethodArgumentNotValidException e) {
		log.warn("参数验证失败", e.getMessage());
		return handleError(e.getBindingResult());
	}

	@ExceptionHandler(BindException.class)
	@ResponseStatus(HttpStatus.BAD_REQUEST)
	public R handleError(BindException e) {
		log.warn("参数绑定失败", e.getMessage());
		return handleError(e.getBindingResult());
	}

	private R handleError(BindingResult result) {
		FieldError error = result.getFieldError();
		String message = String.format("%s:%s", error.getField(), error.getDefaultMessage());
		return R.fail(ResultCode.PARAM_BIND_ERROR, message);
	}

	@ExceptionHandler(ConstraintViolationException.class)
	@ResponseStatus(HttpStatus.BAD_REQUEST)
	public R handleError(ConstraintViolationException e) {
		log.warn("参数验证失败", e.getMessage());
		Set<ConstraintViolation<?>> violations = e.getConstraintViolations();
		ConstraintViolation<?> violation = violations.iterator().next();
		String path = ((PathImpl) violation.getPropertyPath()).getLeafNode().getName();
		String message = String.format("%s:%s", path, violation.getMessage());
		return R.fail(ResultCode.PARAM_VALID_ERROR, message);
	}

	@ExceptionHandler(NoHandlerFoundException.class)
	@ResponseStatus(HttpStatus.NOT_FOUND)
	public R handleError(NoHandlerFoundException e) {
		log.error("404没找到请求:{}", e.getMessage());
		return R.fail(ResultCode.NOT_FOUND, e.getMessage());
	}

	@ExceptionHandler(HttpMessageNotReadableException.class)
	@ResponseStatus(HttpStatus.BAD_REQUEST)
	public R handleError(HttpMessageNotReadableException e) {
		log.error("消息不能读取:{}", e.getMessage());
		return R.fail(ResultCode.MSG_NOT_READABLE, e.getMessage());
	}

	@ExceptionHandler(HttpRequestMethodNotSupportedException.class)
	@ResponseStatus(HttpStatus.METHOD_NOT_ALLOWED)
	public R handleError(HttpRequestMethodNotSupportedException e) {
		log.error("不支持当前请求方法:{}", e.getMessage());
		return R.fail(ResultCode.METHOD_NOT_SUPPORTED, e.getMessage());
	}

	@ExceptionHandler(HttpMediaTypeNotSupportedException.class)
	@ResponseStatus(HttpStatus.UNSUPPORTED_MEDIA_TYPE)
	public R handleError(HttpMediaTypeNotSupportedException e) {
		log.error("不支持当前媒体类型:{}", e.getMessage());
		return R.fail(ResultCode.MEDIA_TYPE_NOT_SUPPORTED, e.getMessage());
	}

	@ExceptionHandler(HttpMediaTypeNotAcceptableException.class)
	@ResponseStatus(HttpStatus.UNSUPPORTED_MEDIA_TYPE)
	public R handleError(HttpMediaTypeNotAcceptableException e) {
		String message = e.getMessage() + " " + StringUtil.join(e.getSupportedMediaTypes());
		log.error("不接受的媒体类型:{}", message);
		return R.fail(ResultCode.MEDIA_TYPE_NOT_SUPPORTED, message);
	}

}