package com.fdkankan.manage.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.fdkankan.common.constant.ErrorCode;
import com.fdkankan.common.exception.BusinessException;
import com.fdkankan.common.response.PageInfo;
import com.fdkankan.common.util.DateUtil;
import com.fdkankan.common.util.FileMd5Util;
import com.fdkankan.common.util.FileUtils;
import com.fdkankan.common.validation.ValidationUtils;
import com.fdkankan.manage.common.ResultCode;
import com.fdkankan.manage.util.MangerUploadToOssUtil;
import com.fdkankan.manage.entity.CameraVersion;
import com.fdkankan.manage.mapper.ICameraVersionMapper;
import com.fdkankan.manage.service.ICameraVersionService;
import com.fdkankan.manage.vo.request.CameraVersionParam;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.annotation.Resource;
import java.io.File;
import java.io.IOException;
import java.util.Base64;
import java.util.List;

/**
 * <p>
 * 相机版本表 服务实现类
 * </p>
 *
 * @author 
 * @since 2022-06-15
 */
@Service
@Slf4j
public class CameraVersionServiceImpl extends ServiceImpl<ICameraVersionMapper, CameraVersion> implements ICameraVersionService {

    public static String DIR_NAME = "camera_version/";
    public static String YAMAXUN_S3_PATH = "https://eurs3.4dkankan.com/camera_version/";

    @Value("${upload.type}")
    private String ossType;
    @Value("${oss.prefix.ali}")
    private String prefixAli;
    @Resource
    private MangerUploadToOssUtil mangeUploadToOssUtil;

    @Override
    public void addAndUpload(MultipartFile file, String version, String description, String minVersion, Integer type) throws IOException {
        log.info("run upload");
        if (!file.isEmpty()&& file.getSize() <= 0) {
            throw new BusinessException(ErrorCode.FILE_NOT_EXIST);
        }
        // 文件名全名
        String fullFileName = file.getOriginalFilename();
        // 将文件转字节-> 字符串
        String fileContent = Base64.getEncoder().encodeToString(file.getBytes());
        // 获取类路径
        String resourcePath = FileUtils.getResource();
        log.info("resourcePath: {}", resourcePath);
        // 创建目录
        String dirPath = resourcePath + DIR_NAME;
        FileUtils.createDir(dirPath);
        // 拼接唯一文件名
        String fileName = DateUtil.dateStr() + fullFileName;
        // 文件保存路径
        String filePath = dirPath + DateUtil.dateStr() + fullFileName;
        // 写文件到本地
        FileUtils.base64ToFileWriter(fileContent, filePath);
        log.info("filePath: {}", filePath);
        // 上传到阿里云sso
        mangeUploadToOssUtil.upload(filePath, DIR_NAME + fileName);
        log.info("upload success");
        String url = prefixAli + DIR_NAME + fileName;
        if("aws".equals(ossType)){
            url = YAMAXUN_S3_PATH + fileName;
        }
        log.info("upload url: {}" + url);
        // 添加对象信息
        List<CameraVersion> cameraVersions = this.getByVersion(version);
        if(cameraVersions != null && cameraVersions.size() >0){
            throw new BusinessException(ResultCode.VISION_EXIST.code(),ResultCode.VISION_EXIST.message());
        }
        CameraVersion versionEntity = new CameraVersion();
        versionEntity.setName(fileName);
        versionEntity.setFileUrl(url);
        versionEntity.setVersion(version);
        versionEntity.setDescription(description);
        versionEntity.setType(type);
        versionEntity.setMinVersion(minVersion);
        versionEntity.setStatus("I");
        versionEntity.setFileMd5(FileMd5Util.getFileMD5(new File(filePath)));
        this.save(versionEntity);
        // 删除本地文件
        FileUtils.deleteFile(filePath);
    }

    private List<CameraVersion> getByVersion(String version) {
        LambdaQueryWrapper<CameraVersion> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(CameraVersion::getVersion,version);
        return this.list(wrapper);
    }

    @Override
    public PageInfo pageList(CameraVersionParam param) {
        LambdaQueryWrapper<CameraVersion> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(CameraVersion::getType,param.getType());
        if (StringUtils.isNotBlank(param.getVersion())) {
            queryWrapper.and(wrapper -> wrapper
                    .like(CameraVersion::getName,param.getVersion())
                    .or()
                    .like(CameraVersion::getVersion,param.getVersion()));
        }
        queryWrapper.orderByDesc(CameraVersion::getCreateTime);
        Page<CameraVersion> page = this.page(new Page<>(param.getPageNum(), param.getPageSize()), queryWrapper);
        return PageInfo.PageInfo(page);
    }

    @Override
    public void updateByParam(CameraVersion param) {
        if(param.getId() == null){
            throw new BusinessException(ErrorCode.MISSING_REQUIRED_PARAMETERS);
        }
        CameraVersion cameraVersion = this.getById(param.getId());
        if(cameraVersion == null){
            throw new BusinessException(ErrorCode.NOT_RECORD);
        }
        if(StringUtils.isNotBlank(param.getStatus()) && !param.getStatus().equals(cameraVersion.getStatus())){
            if(StringUtils.isBlank(param.getStatus()) || param.getType() == null){
                throw new BusinessException(ErrorCode.MISSING_REQUIRED_PARAMETERS);
            }
            if (!ValidationUtils.validateRecStatus(param.getStatus())) {
                throw new BusinessException(ErrorCode.ERROR_MSG);
            }
            // 仅有有一台相机是活动状态
            // 查找所以活动状态相机
            if(param.getStatus().equals("A")){
                LambdaUpdateWrapper<CameraVersion> updateWrapper = new LambdaUpdateWrapper<>();
                updateWrapper.set(CameraVersion::getStatus,"I")
                        .eq(CameraVersion::getStatus,"A")
                        .eq(CameraVersion::getType,param.getType());
                this.update(updateWrapper);
            }
            cameraVersion.setStatus(param.getStatus());
            this.updateById(param);
            return;
        }
        this.saveOrUpdate(param);
    }
}