package com.zc.business.controller;

import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.spring.SpringUtils;
import com.ruoyi.system.service.ISysConfigService;
import com.zc.business.domain.DcWarning;
import com.zc.business.service.IDcWarningService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.springframework.stereotype.Component;

import java.io.BufferedInputStream;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.time.Duration;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

/**
 *
 */
@Component()
@Slf4j
public class RadarController {
    ISysConfigService configService = SpringUtils.getBean(ISysConfigService.class);
    IDcWarningService dcWarningService = SpringUtils.getBean(IDcWarningService.class);

    public void radarDownload() {

        // 获取当前时间
        LocalDateTime now = LocalDateTime.now();
        // 定义格式
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        // 获取当前时间前5分钟的时间点
        LocalDateTime fifteenMinutesAgo = now.minus(Duration.ofMinutes(5));
        String FifteenMinutesAgo = fifteenMinutesAgo.format(formatter);

        // 获取当前时间前25分钟的时间点
        LocalDateTime twentyMinutesAgo = now.minus(Duration.ofMinutes(25));
        String TwentyMinutesAgo = twentyMinutesAgo.format(formatter);
        DcWarning dcWarning = new DcWarning();

        dcWarning.setStartDate(TwentyMinutesAgo);
        dcWarning.setEndDate(FifteenMinutesAgo);
        List<DcWarning> radarList = dcWarningService.radarList(dcWarning);
        // 创建一个固定大小的线程池
        ExecutorService executor = Executors.newFixedThreadPool(3); // 线程池大小

        try {
            radarList.forEach(radar -> {
                if (radar != null && radar.getId() != null) {
                    executor.submit(() -> processRadarEvent(radar, now));
                }
            });

            // 关闭线程池，并等待所有任务完成
            executor.shutdown();
            executor.awaitTermination(1, TimeUnit.HOURS); // 设置超时时间
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt(); // 恢复中断状态
            log.error("线程池关闭过程中发生中断", e);
        } finally {
            if (!executor.isTerminated()) {
                executor.shutdownNow(); // 强制关闭未完成的任务
            }
        }
    }

    private void processRadarEvent(DcWarning radar, LocalDateTime now) {
        try {
            // 获取雷达事件视频
            String baseUrl = dcWarningService.getRadarIncidentVideo(radar.getId());
            System.out.println("雷达视频地址：" + baseUrl);

            if (baseUrl == null || baseUrl.isEmpty()) {
                log.warn("雷达事件ID {} 没有对应的视频URL", radar.getId());
                return;
            }

            String ftpServer= configService.selectConfigByKey("FTP-IP");//密钥
            int port= Integer.parseInt(configService.selectConfigByKey("FTP-PORT"));
            String username= configService.selectConfigByKey("FTP-USER");//密钥
            String password= configService.selectConfigByKey("FPT-PASSWORD");//密钥
//            String ftpServer = "192.168.3.1";
//            int port = 21;
//            String username = "1911390090@qq.com";
//            String password = "989878wxl";

            String[] split = StringUtils.split(baseUrl, "/");
            // 拼接文件名
            String fileName = split[split.length - 1];

            DateTimeFormatter dirFormatter = DateTimeFormatter.ofPattern("yyyyMMdd");
            DateTimeFormatter hourFormatter = DateTimeFormatter.ofPattern("HH");
            String datePart = now.format(dirFormatter);
            String hourPart = now.format(hourFormatter);
            // 文件路径
            String remoteFilePath = "/radar/" + datePart + "/" + hourPart;
            String download = directDownloadToFtp(baseUrl, ftpServer, port, username, password, remoteFilePath, fileName);

            DcWarning dcWarning1 = new DcWarning();
            dcWarning1.setId(radar.getId());
            dcWarning1.setRadarUrl(download);
            int i = dcWarningService.updateDcWarning(dcWarning1);
            if (i <= 0) {
                log.error("更新数据库失败，ID: {}", radar.getId());
            }
        } catch (Exception e) {
            log.error("处理雷达事件ID {} 时发生异常", radar.getId(), e);
        }
    }
    public static String directDownloadToFtp(String baseUrl, String ftpServer, int port, String user, String pass, String remotePath, String fileName) throws IOException, URISyntaxException, InterruptedException {
        FTPClient ftpClient = new FTPClient();
        HttpURLConnection httpConn = null;
        InputStream inputStream = null;
        String URL = "https://10.0.111.11/eventAi";
        try {
            // 空格编码并构建URL
            String encodedUrl = encodeUriComponent(baseUrl);
            System.out.println("encodedUrl: " + encodedUrl);
            URI uri = new URI(encodedUrl);
            URL url = uri.toURL();

            httpConn = (HttpURLConnection) url.openConnection();
            int responseCode = httpConn.getResponseCode();

            if (responseCode == HttpURLConnection.HTTP_OK) {
                log.info("成功连接到HTTP服务器");
                // 连接到FTP服务器
                ftpClient.connect(ftpServer, port);
                boolean loginResult = ftpClient.login(user, pass);
                if (!loginResult) {
                    log.info("FTP登录失败");
                }
                log.info("成功登录到FTP服务器");
                // 设置为二进制传输模式和被动模式
                ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
                ftpClient.enterLocalPassiveMode(); // 使用被动模式
                // 创建输入流
                inputStream = new BufferedInputStream(httpConn.getInputStream());

                // 创建远程目录
                if (!remotePath.isEmpty()) {
                    // 将路径拆分为各个部分，逐级创建目录
                    for (String part : remotePath.split("/")) {
                        if (!part.isEmpty()) {
                            if (!ftpClient.changeWorkingDirectory(part)) {
                                if (ftpClient.makeDirectory(part)) {
                                    log.info("成功创建远程目录: " + part);
                                    if (!ftpClient.changeWorkingDirectory(part)) {
                                        log.info("无法切换到新创建的远程目录: " + part);
                                    }
                                } else {
                                    log.info("无法创建远程目录: " + part);
                                }
                            }
                        }
                    }
                    // 确认最终工作目录
                    log.info("最终工作目录: " + ftpClient.printWorkingDirectory());
                }
                // 上传文件到FTP服务器
                boolean done =  ftpClient.storeFile(new String(fileName.getBytes("GBK"),"ISO-8859-1"), inputStream);
                if (done) {
                    log.info("文件上传成功");
                    return URL+ftpClient.printWorkingDirectory()+"/" + fileName;
                } else {// 文件上传失败
                    return null;
                }
            } else {
                throw new IOException("无法从HTTP服务器获取文件，响应码：" + responseCode);
            }
        } finally {
            // 关闭资源
            closeQuietly(inputStream);
            if (httpConn != null) {
                httpConn.disconnect();
            }
            if (ftpClient.isConnected()) {
                try {
                    ftpClient.logout();
                    ftpClient.disconnect();
                } catch (IOException ignored) {
                }
            }
        }
    }

    // 安全关闭流的方法
    private static void closeQuietly(Closeable closeable) {
        if (closeable != null) {
            try {
                closeable.close();
            } catch (IOException ignored) {
            }
        }
    }

    //

    /*
        private static String encodeUriComponent(String component, java.nio.charset.Charset charset) {
            try {
                return java.net.URLEncoder.encode(component, charset.toString())
                        .replaceAll("\\+", "%20") // 将空格替换为 %20
                        .replaceAll("%2F", "/"); // 保留斜杠
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    */
//保留 URL 中的特殊字符如 : / 等
    private static String encodeUriComponent(String component) {
        try {
            URI uri = new URI(null, null, component, null);
            return uri.toASCIIString();
        } catch (URISyntaxException e) {
            throw new RuntimeException("URI编码错误", e);
        }
    }


}