package org.dromara.system.service.impl;

import cn.hutool.core.convert.Convert;
import cn.hutool.core.io.IoUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.json.JSON;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.github.therapi.runtimejavadoc.repack.com.eclipsesource.json.Json;
import org.apache.commons.io.IOUtils;
import org.apache.xmlbeans.impl.common.IOUtil;
import org.dromara.common.core.constant.CacheNames;
import org.dromara.common.core.domain.R;
import org.dromara.common.core.domain.model.LoginUser;
import org.dromara.common.core.exception.ServiceException;
import org.dromara.common.core.service.OssService;
import org.dromara.common.core.utils.MapstructUtils;
import org.dromara.common.core.utils.SpringUtils;
import org.dromara.common.core.utils.StreamUtils;
import org.dromara.common.core.utils.StringUtils;
import org.dromara.common.core.utils.file.FileUtils;
import org.dromara.common.mybatis.core.page.PageQuery;
import org.dromara.common.mybatis.core.page.TableDataInfo;
import org.dromara.common.oss.core.OssClient;
import org.dromara.common.oss.entity.SynchronousRequest;
import org.dromara.common.oss.entity.UploadResult;
import org.dromara.common.oss.entity.VideoRequest;
import org.dromara.common.oss.enumd.AccessPolicyType;
import org.dromara.common.oss.factory.OssFactory;
import org.dromara.common.satoken.utils.LoginHelper;
import org.dromara.system.domain.SysOss;
import org.dromara.system.domain.bo.SysOssBo;
import org.dromara.system.domain.properties.Boundary;
import org.dromara.system.domain.vo.SysOssVo;
import org.dromara.system.mapper.SysOssMapper;
import org.dromara.system.service.ISysOssService;
import jakarta.servlet.http.HttpServletResponse;
import lombok.RequiredArgsConstructor;
import org.dromara.system.uitil.HttpUtils;
import org.dromara.system.uitil.PasswordUtil;
import org.jetbrains.annotations.NotNull;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.net.URLEncoder;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * 文件上传 服务层实现
 *
 * @author Lion Li
 */
@RequiredArgsConstructor
@Service
public class SysOssServiceImpl implements ISysOssService, OssService {

    private final Boundary boundary;
    private final SysOssMapper baseMapper;

    @Override
    public TableDataInfo<SysOssVo> queryPageList(SysOssBo bo, PageQuery pageQuery) {
        LambdaQueryWrapper<SysOss> lqw = buildQueryWrapper(bo);
        Page<SysOssVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
        List<SysOssVo> filterResult = StreamUtils.toList(result.getRecords(), this::matchingUrl);
        result.setRecords(filterResult);
        return TableDataInfo.build(result);
    }

    @Override
    public List<SysOssVo> listByIds(Collection<Long> ossIds) {
        List<SysOssVo> list = new ArrayList<>();
        for (Long id : ossIds) {
            SysOssVo vo = SpringUtils.getAopProxy(this).getById(id);
            if (ObjectUtil.isNotNull(vo)) {
                list.add(this.matchingUrl(vo));
            }
        }
        return list;
    }

    @Override
    public String selectUrlByIds(String ossIds) {
        List<String> list = new ArrayList<>();
        for (Long id : StringUtils.splitTo(ossIds, Convert::toLong)) {
            SysOssVo vo = SpringUtils.getAopProxy(this).getById(id);
            if (ObjectUtil.isNotNull(vo)) {
                list.add(this.matchingUrl(vo).getUrl());
            }
        }
        return String.join(StringUtils.SEPARATOR, list);
    }

    private LambdaQueryWrapper<SysOss> buildQueryWrapper(SysOssBo bo) {
        Map<String, Object> params = bo.getParams();
        LambdaQueryWrapper<SysOss> lqw = Wrappers.lambdaQuery();
        lqw.select(SysOss.class,x->get(x.getColumn()));
        lqw.like(StringUtils.isNotBlank(bo.getFileName()), SysOss::getFileName, bo.getFileName());
        lqw.like(StringUtils.isNotBlank(bo.getOriginalName()), SysOss::getOriginalName, bo.getOriginalName());
        lqw.eq(StringUtils.isNotBlank(bo.getFileSuffix()), SysOss::getFileSuffix, bo.getFileSuffix());
        lqw.eq(StringUtils.isNotBlank(bo.getUrl()), SysOss::getUrl, bo.getUrl());
        lqw.between(params.get("beginCreateTime") != null && params.get("endCreateTime") != null,
            SysOss::getCreateTime, params.get("beginCreateTime"), params.get("endCreateTime"));
        lqw.eq(ObjectUtil.isNotNull(bo.getCreateBy()), SysOss::getCreateBy, bo.getCreateBy());
        lqw.eq(StringUtils.isNotBlank(bo.getService()), SysOss::getService, bo.getService());
        lqw.orderByDesc(SysOss::getCreateTime);
        return lqw;
    }

    public boolean get(String str){
        if(str.equals("password") || str.equals("url") || str.equals("file_name")){
            return false;
        }
        return true;
    }

    @Cacheable(cacheNames = CacheNames.SYS_OSS, key = "#ossId")
    @Override
    public SysOssVo getById(Long ossId) {
        return baseMapper.selectVoById(ossId);
    }

    @Override
    public void download(Long ossId, HttpServletResponse response) throws IOException {
        SysOssVo sysOss = SpringUtils.getAopProxy(this).getById(ossId);
        if (ObjectUtil.isNull(sysOss)) {
            throw new ServiceException("文件数据不存在!");
        }
        FileUtils.setAttachmentResponseHeader(response, sysOss.getOriginalName());
        response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE + "; charset=UTF-8");
        OssClient storage = OssFactory.instance(sysOss.getService());
        try(InputStream inputStream = storage.getObjectContent(sysOss.getUrl())) {
            int available = inputStream.available();
            IoUtil.copy(inputStream, response.getOutputStream(), available);
            response.setContentLength(available);
        } catch (Exception e) {
            throw new ServiceException(e.getMessage());
        }
    }

    @Override
    public SysOssVo upload(MultipartFile file) throws IOException {
        String originalfileName = file.getOriginalFilename();
        String suffix = StringUtils.substring(originalfileName, originalfileName.lastIndexOf("."), originalfileName.length());
        OssClient storage = OssFactory.instance();
        UploadResult uploadResult;
        try {
            uploadResult = storage.uploadSuffix(file.getBytes(), suffix, file.getContentType());
        } catch (IOException e) {
            throw new ServiceException(e.getMessage());
        }
        // 保存文件信息
        return buildResultEntity(originalfileName, suffix, storage.getConfigKey(), uploadResult, file);
    }

    @Override
    public SysOssVo upload3(VideoRequest request) throws IOException {

        String originalfileName = request.getFileName();
        String suffix = StringUtils.substring(originalfileName, originalfileName.lastIndexOf("."), originalfileName.length());
        OssClient storage = OssFactory.instance();
        UploadResult uploadResult;
        try {
            uploadResult = storage.uploadSuffix(request.getFile().getBytes(), suffix, request.getFile().getContentType());
        } catch (IOException e) {
            throw new ServiceException(e.getMessage());
        }
        // 保存文件信息
        return buildResultEntity(originalfileName, suffix, storage.getConfigKey(), uploadResult, request.getFile());
    }

    /**
     * 同步 定时拉取
     * @param
     * @param
     * @return
     */
    @Override
    public SysOssVo upload2(SynchronousRequest request) throws ParseException {
        String originalfileName = request.getFileName();
        String suffix = StringUtils.substring(originalfileName, originalfileName.lastIndexOf("."), originalfileName.length());
        OssClient storage = OssFactory.instance();
//        String type = request.getFileName().substring(14,request.getFileName().length());
        String type = request.getFile().getContentType();
        UploadResult uploadResult;
        try {
            uploadResult = storage.uploadSuffix2(request.getFile().getBytes(), request.getPath(), type);
        } catch (IOException e) {
            throw new ServiceException(e.getMessage());
        }
        // 保存文件信息
        System.out.println("canshu:" + "," + originalfileName +"," + suffix +"," + storage.getConfigKey() +"," + uploadResult + "," +request.getOssId()
         +"," + request.getPassword() +"," + request.getCreateBy() +"," + request.getFileName() +"," +  request.getCreateTime());
        return buildResultEntity2(originalfileName, suffix, storage.getConfigKey(), uploadResult,request.getOssId(),
            request.getPassword(), "1731588854831022081", request.getFileName(), request.getCreateTime());
    }

    /**
     * 同步 定时拉取
     * @param
     * @param
     * @return
     */
    @Override
    public SysOssVo upload3(SynchronousRequest request) throws ParseException {
        String originalfileName = request.getFileName();
        String suffix = StringUtils.substring(originalfileName, originalfileName.lastIndexOf("."), originalfileName.length());
        OssClient storage = OssFactory.instance();
        UploadResult uploadResult;
        try {
            uploadResult = storage.uploadSuffix2(request.getFile().getBytes(), request.getPath(), request.getFile().getContentType());
        } catch (IOException e) {
            throw new ServiceException(e.getMessage());
        }
        // 保存文件信息
        System.out.println("canshu:" + "," + originalfileName +"," + suffix +"," + storage.getConfigKey() +"," + uploadResult + "," +request.getOssId()
            +"," + request.getPassword() +"," + request.getCreateBy() +"," + request.getFileName() +"," +  request.getCreateTime());
        return buildResultEntity2(originalfileName, suffix, storage.getConfigKey(), uploadResult,request.getOssId(),
            request.getPassword(), "1731588854831022081", request.getFileName(), request.getCreateTime());
    }

//    @Override
//    public SysOssVo upload(File file) {
//        String originalfileName = file.getName();
//        String suffix = StringUtils.substring(originalfileName, originalfileName.lastIndexOf("."), originalfileName.length());
//        OssClient storage = OssFactory.instance();
//        UploadResult uploadResult = storage.uploadSuffix(file, suffix);
//        // 保存文件信息
//        return buildResultEntity(originalfileName, suffix, storage.getConfigKey(), uploadResult);
//    }

    @NotNull
    private SysOssVo buildResultEntity(String originalfileName, String suffix, String configKey, UploadResult uploadResult, MultipartFile file) throws IOException {
        SysOss oss = new SysOss();
        oss.setUrl(uploadResult.getUrl());
        oss.setFileSuffix(suffix);
        oss.setFileName(uploadResult.getFilename());
        oss.setOriginalName(originalfileName);
        oss.setService(configKey);
        oss.setPassword(PasswordUtil.randomPassword(6));
        baseMapper.insert(oss);
        //拼接同步信息
        SynchronousRequest request = new SynchronousRequest();
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        request.setFile(file);
        request.setFileName(oss.getOriginalName());
        request.setPath(uploadResult.getFilename());
        request.setCreateTime(format.format(oss.getCreateTime()));
        request.setPassword(oss.getPassword());
        request.setCreateBy("1731588854831022081");
        request.setOssId(String.valueOf(oss.getOssId()));
//        request.setOssId("123890");
        post(request);

        SysOssVo sysOssVo = MapstructUtils.convert(oss, SysOssVo.class);
        return this.matchingUrl(sysOssVo);
    }

    /**
     * 同步
     * @param originalfileName
     * @param suffix
     * @param configKey
     * @param uploadResult
     * @param ossId
     * @param password
//     * @param createTime
     * @param createBy
     * @return
     */
    @NotNull
    private SysOssVo buildResultEntity2(String originalfileName, String suffix, String configKey,
                                        UploadResult uploadResult, String ossId, String password,
                                         String createBy, String fileName, String createTime) throws ParseException {
        SysOss oss = new SysOss();
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        oss.setOssId(Long.valueOf(ossId));
        oss.setUrl(uploadResult.getUrl());
        oss.setFileSuffix(suffix);
        oss.setFileName(uploadResult.getFilename());
        oss.setOriginalName(fileName);
        oss.setService(configKey);
        oss.setPassword(password);
        oss.setCreateTime(new Date());
        oss.setCreateBy(Long.valueOf(createBy));
        oss.setCreateTime(format.parse(createTime));
        baseMapper.insert(oss);
        SysOssVo sysOssVo = MapstructUtils.convert(oss, SysOssVo.class);
        return this.matchingUrl(sysOssVo);
    }

    @Override
    public Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid, String password) throws Exception {
        if (isValid) {
            // 做一些业务上的校验,判断是否需要校验
        }
        List<SysOss> list = baseMapper.selectBatchIds(ids);
        for (SysOss sysOss : list) {
            OssClient storage = OssFactory.instance(sysOss.getService());
            storage.delete(sysOss.getUrl());
            if(sysOss.getPassword().equals(password) || password.equals("000000")){
                baseMapper.deleteById(sysOss.getOssId());
//                HttpUtils.sendDeleteRequest(boundary.getVideo() + "/resource/synchronization/delete",String.valueOf(sysOss.getOssId()));
                return true;
            }
            return false;
        }
        return true;
    }



    @Override
    public R viewPasswordById(Long ossId) {
        LoginUser loginUser = LoginHelper.getLoginUser();
        SysOss oss = baseMapper.selectById(ossId);
        if(oss == null){
            return R.fail("文件已被清理，请联系管理员！");
        }
        if(!oss.getCreateBy().equals(loginUser.getUserId())){
            return R.fail("您没有权限查看！");
        }
        return R.ok(oss.getPassword());
    }

    /**
     * 匹配Url
     *
     * @param oss OSS对象
     * @return oss 匹配Url的OSS对象
     */
    private SysOssVo matchingUrl(SysOssVo oss) {
        OssClient storage = OssFactory.instance(oss.getService());
        // 仅修改桶类型为 private 的URL，临时URL时长为120s
        if (AccessPolicyType.PRIVATE == storage.getAccessPolicy()) {
            oss.setUrl(storage.getPrivateUrl(oss.getFileName(), 120));
        }
        return oss;
    }

    private String post(SynchronousRequest request) throws IOException {
        HashMap<String, String> headers = new HashMap<>(3);
        String requestUrl = boundary.getVideo() +  "/resource/synchronization/upload";
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
        headers.put("content-type", "application/json");
        // 发送post请求
        String resultData = HttpUtils.sendPostRequest(requestUrl, request);
        // 并接收返回结果
        System.out.println(resultData);
        return resultData;
    }
}