package com.ruoyi.web.controller.common;

import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.ServerConfig;
import org.apache.catalina.connector.Connector;
import org.apache.catalina.startup.Tomcat;
import org.apache.coyote.AbstractProtocol;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.MediaType;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.management.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.lang.management.ManagementFactory;
import java.util.Set;

/**
 * 通用请求处理
 *
 * @author ruoyi
 */
@RestController
public class CommonController {
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;


    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete   是否删除
     */
    @GetMapping("common/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
        try {
            if (!FileUtils.checkAllowDownload(fileName)) {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        } catch (Exception e) {
            log.error("下载文件失败", e);
        }
    }


    /**
     * 通用上传请求,type 为0 代表是差旅报销，为1代表费用申请,其它值不变
     */
    @PostMapping("/common/upload")
    public AjaxResult uploadFile(MultipartFile file) throws Exception {

        try {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();

            //判断文件是否存在
            String filename = file.getOriginalFilename().trim();
            String felinamePath = FileUploadUtils.extractFilename(file);
//            String pathFileName = FileUploadUtils.getPathFileName(filePath, s);
            File file1 = new File(filePath + "/" + felinamePath);
            boolean exists = file1.exists();
            if (exists) {
                int i = filename.lastIndexOf(".");
                String startStr = filename.substring(0, i);
                String endStr = filename.substring(i, filename.length());

                String newFilename = startStr + System.currentTimeMillis() + endStr; // your new filename
                String contentType = file.getContentType();
                byte[] bytes = file.getBytes();
                file = new MockMultipartFile(newFilename, newFilename, contentType, bytes);
            }

            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url1 = serverConfig.getUrl();
            log.info("url1的值old :{}", url1);
            if (url1.contains("8032")) {
                //这里的8032不是tomcat的，所以要转成tomcat的
                url1 = url1.replace("8032", "8032/prod-api");
            }
            log.info("url1的值new :{}", url1);
            String url = url1 + fileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("fileName", fileName);
            ajax.put("url", url);
            return ajax;
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }
    }


//    private static void parseUTF(int[] bits) {
//        int index = 0;//这个指针指向每一行循环时列下标的位置，下一行开始时重新置位0
//        int count = 0;
//        ;//这个变量记录每个UTF-8字符的字节数，至少1字节
//        for (int j = ; j < bits.length; ) {
//            //循环每一行数组数据-从头去读--先读这个字符是几个字节组成的
//            // 然后按utf-8的编码格式组合字符串，转换为字符即可
//            if (bits[j] == 1) {
//                count++;
//                index++;
//            } else {
//                index++;//这一位是1后面跟的那一个o
//                //不为1，则说明已经解析完字节数，count里面存的如果是@表示是单字节数据
//                //如果不是o则表示是多字节数据
//                String str = "";
//            }
//        }
//    }
//
//}

    /**
     * 本地资源通用下载
     */
    @GetMapping("/common/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response) throws Exception {
        try {
            if (!FileUtils.checkAllowDownload(resource)) {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        } catch (Exception e) {
            log.error("下载文件失败", e);
        }
    }


    public int getTomcatPort() {
        MBeanServer beanServer = ManagementFactory.getPlatformMBeanServer();
        try {
            QueryExp protocol = Query.match(Query.attr("protocol"), Query.value("HTTP/1.1"));
            ObjectName name = new ObjectName("*:type=Connector,*");
            Set<ObjectName> objectNames = beanServer.queryNames(name, protocol);
            for (ObjectName objectName : objectNames) {
                String catalina = objectName.getDomain();
                if ("Catalina".equals(catalina)) {
                    return Integer.parseInt(objectName.getKeyProperty("port"));
                }
            }
        } catch (MalformedObjectNameException e) {
            e.printStackTrace();
        }
        return 0;
    }
}