/*
 * Copyright 2020-2030 码匠君<herodotus@aliyun.com>
 *
 * Dante Engine licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Dante Engine 是 Dante Cloud 系统核心组件库，采用 APACHE LICENSE 2.0 开源协议，您在使用过程中，需要注意以下几点：
 *
 * 1. 请不要删除和修改根目录下的LICENSE文件。
 * 2. 请不要删除和修改 Dante Engine 源码头部的版权声明。
 * 3. 请保留源码和相关描述文件的项目出处，作者声明等。
 * 4. 分发源码时候，请注明软件出处 <https://gitee.com/dromara/dante-cloud>
 * 5. 在修改包名，模块名称，项目代码等时，请注明软件出处 <https://gitee.com/dromara/dante-cloud>
 * 6. 若您的项目无法满足以上几点，可申请商业授权
 */

package org.dromara.dante.servlet.container.autoconfigure.oauth2;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.ObjectUtils;
import org.dromara.dante.core.domain.Result;
import org.dromara.dante.core.exception.PlatformRuntimeException;
import org.dromara.dante.security.exception.PlatformAuthenticationException;
import org.dromara.dante.security.exception.SecurityGlobalExceptionHandler;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.oauth2.core.OAuth2AuthenticationException;
import org.springframework.validation.BindException;
import org.springframework.validation.BindingResult;
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 org.springframework.web.client.HttpClientErrorException;
import org.springframework.web.client.HttpServerErrorException;

/**
 * <p>Description: Servlet 环境统一错误处理 </p>
 *
 * @author : gengwei.zheng
 * @date : 2024/1/29 23:50
 */
@RestControllerAdvice
public class ServletRestControllerAdvice {

    private static Result<String> resolveException(Exception ex, HttpServletRequest request, HttpServletResponse response) {
        Result<String> result = SecurityGlobalExceptionHandler.resolveException(ex, request.getRequestURI());
        response.setStatus(result.getStatus());
        return result;
    }

    private static Result<String> resolveSecurityException(Exception ex, HttpServletRequest request, HttpServletResponse response) {
        Result<String> result = SecurityGlobalExceptionHandler.resolveSecurityException(ex, request.getRequestURI());
        response.setStatus(result.getStatus());
        return result;
    }

    /**
     * Rest Template 错误处理
     *
     * @param ex       错误
     * @param request  请求
     * @param response 响应
     * @return Result 对象
     * @see <a href="https://www.baeldung.com/spring-rest-template-error-handling">baeldung</a>
     */
    @ExceptionHandler({HttpClientErrorException.class, HttpServerErrorException.class})
    public static Result<String> restTemplateException(Exception ex, HttpServletRequest request, HttpServletResponse response) {
        return resolveException(ex, request, response);
    }

    @ExceptionHandler({MethodArgumentNotValidException.class})
    public static Result<String> validationMethodArgumentException(MethodArgumentNotValidException ex, HttpServletRequest request, HttpServletResponse response) {
        return validationBindException(ex, request, response);
    }

    @ExceptionHandler({BindException.class})
    public static Result<String> validationBindException(BindException ex, HttpServletRequest request, HttpServletResponse response) {
        Result<String> result = SecurityGlobalExceptionHandler.resolveException(ex, request.getRequestURI());

        BindingResult bindingResult = ex.getBindingResult();
        FieldError fieldError = bindingResult.getFieldError();
        //返回第一个错误的信息
        if (ObjectUtils.isNotEmpty(fieldError)) {
            result.validation(fieldError.getDefaultMessage(), fieldError.getCode(), fieldError.getField());
        }

        response.setStatus(result.getStatus());
        return result;
    }

    /**
     * 统一异常处理
     * AuthenticationException
     *
     * @param ex       错误
     * @param request  请求
     * @param response 响应
     * @return Result 对象
     */
    @ExceptionHandler({AuthenticationException.class, AccessDeniedException.class, PlatformAuthenticationException.class, OAuth2AuthenticationException.class})
    public static Result<String> authenticationException(Exception ex, HttpServletRequest request, HttpServletResponse response) {
        return resolveSecurityException(ex, request, response);
    }

    @ExceptionHandler({Exception.class, PlatformRuntimeException.class})
    public static Result<String> exception(Exception ex, HttpServletRequest request, HttpServletResponse response) {
        return resolveException(ex, request, response);
    }
}
