package com.fdkankan.scene.service.impl;

import cn.hutool.core.exceptions.ExceptionUtil;
import cn.hutool.core.lang.UUID;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.fdkankan.common.constant.ErrorCode;
import com.fdkankan.common.exception.BusinessException;
import com.fdkankan.fyun.face.FYunFileServiceInterface;
import com.fdkankan.model.constants.ConstantFilePath;
import com.fdkankan.model.constants.UploadFilePath;
import com.fdkankan.model.utils.CreateObjUtil;
import com.fdkankan.rabbitmq.util.RabbitMqProducer;
import com.fdkankan.scene.entity.DownloadTourVideo;
import com.fdkankan.scene.mapper.IDownloadTourVideoMapper;
import com.fdkankan.scene.service.IDownloadTourVideoService;
import com.fdkankan.scene.vo.DownloadTourVideoVO;
import com.fdkankan.web.response.ResultData;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import lombok.SneakyThrows;
import org.apache.http.HttpHeaders;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

/**
 * <p>
 * 导览视频转换记录表 服务实现类
 * </p>
 *
 * @author 
 * @since 2022-10-12
 */
@Service
public class DownloadTourVideoServiceImpl extends ServiceImpl<IDownloadTourVideoMapper, DownloadTourVideo> implements IDownloadTourVideoService {

    @Value("${queue.scene.transfer-tour-video}")
    private String downloadTourVideoQueue;
    @Value("${fyun.type}")
    private String type;
    @Value("${fyun.bucket:4dkankan}")
    private String bucket;

    @Autowired
    private RabbitMqProducer rabbitMqProducer;
    @Autowired
    private FYunFileServiceInterface fYunFileService;


    @Override
    public DownloadTourVideo getWaitingByNum(String num) {
        return this.getOne(
            new LambdaQueryWrapper<DownloadTourVideo>().eq(DownloadTourVideo::getNum, num)
                .eq(DownloadTourVideo::getState, 0));
    }

    @Override
    public void removeByNum(String num) {
        this.remove(new LambdaQueryWrapper<DownloadTourVideo>().eq(DownloadTourVideo::getNum, num));
    }

    @Override
    public ResultData uploadTourVideo(String num, MultipartFile file) throws Exception {

        //查询是否有任务正在执行，如果有，直接返回
        DownloadTourVideo waiting = this.getWaitingByNum(num);
        if(Objects.nonNull(waiting)){
            throw new BusinessException(ErrorCode.FAILURE_CODE_5064);
        }

        String uuid = UUID.randomUUID().toString();
        String fileName = file.getOriginalFilename();
        String extName = cn.hutool.core.io.FileUtil.extName(fileName);
        String tempFileName = uuid + "." + extName;
        String srcPath = ConstantFilePath.SCENE_V4_PATH + num + "/tour/" + tempFileName;
        File tempFile = new File(srcPath);
        if(!tempFile.getParentFile().exists()){
            tempFile.getParentFile().mkdirs();
        }
        file.transferTo(tempFile);

        //先将旧纪录置为无效
        this.removeByNum(num);

        //写入新记录
        DownloadTourVideo downloadTourVideo = new DownloadTourVideo();
        downloadTourVideo.setNum(num);
        downloadTourVideo.setFileName(fileName);
        downloadTourVideo.setLocalPath(srcPath);
        this.save(downloadTourVideo);

        //发送mq
        rabbitMqProducer.sendByWorkQueue(downloadTourVideoQueue, downloadTourVideo);

        return ResultData.ok();
    }

    @Override
    public void transferTourVideo(DownloadTourVideo downloadTourVideo) {

        String destPath = null;
        try {
            String destFileName = UUID.randomUUID().toString() + ".mp4";
            destPath = ConstantFilePath.SCENE_V4_PATH + downloadTourVideo.getNum() + "tour/" + destFileName;
            File destFile = new File(destPath);
            if(!destFile.getParentFile().exists()){
                destFile.getParentFile().mkdir();
            }
            String srcPath = downloadTourVideo.getLocalPath();
            CreateObjUtil.formatMp4(srcPath, destPath);
            //上传到oss
            String ossPath = String.format(UploadFilePath.DOWNLOADS_TOUR_VIDEO, downloadTourVideo.getNum()) + downloadTourVideo.getFileName();
            Map<String, String> headers = new HashMap<>();
            headers.put(HttpHeaders.CONTENT_TYPE, "application/octet-stream");
            fYunFileService.uploadFile(bucket, destPath, ossPath, headers);
            downloadTourVideo.setDownloadPath(ossPath);
            downloadTourVideo.setState(1);
            this.updateById(downloadTourVideo);
        }catch (Exception e) {
            log.error("导览视频转换失败,num:" + downloadTourVideo.getNum() + "源路径:" + downloadTourVideo.getLocalPath(), e);
            downloadTourVideo.setReason(ExceptionUtil.stacktraceToString(e, 3000));
            downloadTourVideo.setState(2);
            this.updateById(downloadTourVideo);
        }

    }

    @Override
    public ResultData downloadTourVideo(String num) {
        DownloadTourVideoVO result = new DownloadTourVideoVO();
        DownloadTourVideo downloadTourVideo = this.getOne(new LambdaQueryWrapper<DownloadTourVideo>().eq(DownloadTourVideo::getNum, num));
        if(Objects.isNull(downloadTourVideo)){
            result.setStatus(0);
        }else{
            result.setStatus(1);
            result.setTransferStatus(downloadTourVideo.getState());
            result.setPath(downloadTourVideo.getDownloadPath());
        }
        return ResultData.ok(result);
    }
}