package com.glxp.api.controller.sync;

import cn.hutool.core.util.StrUtil;
import com.github.pagehelper.PageInfo;
import com.glxp.api.common.enums.ResultEnum;
import com.glxp.api.common.res.BaseResponse;
import com.glxp.api.common.util.ResultVOUtils;
import com.glxp.api.entity.sync.BasicDownloadStatusEntity;
import com.glxp.api.http.sync.SpGetHttpClient;
import com.glxp.api.req.sync.BasicDownloadRequest;
import com.glxp.api.req.system.DeleteRequest;
import com.glxp.api.res.PageSimpleResponse;
import com.glxp.api.service.sync.BasicDownloadService;
import com.glxp.api.util.RedisUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.Date;
import java.util.List;

@Slf4j
@RestController
public class SpsSyncDownloadController {

    @Resource
    BasicDownloadService basicDownloadService;
    @Resource
    RedisUtil redisUtil;
    @Resource
    SpGetHttpClient spGetHttp;


    @GetMapping("/spssync/download/basic/udiinfo/getStatus")
    public BaseResponse getStatus(BasicDownloadRequest basicDownloadRequest) {
        List<BasicDownloadStatusEntity> basicDownloadStatusEntities = basicDownloadService.filterDownloadStatus(basicDownloadRequest);
        return ResultVOUtils.success(basicDownloadStatusEntities);
    }

    @GetMapping("/spssync/download/basic/udiinfo/filter")
    public BaseResponse filterStatus(BasicDownloadRequest basicDownloadRequest) {
        List<BasicDownloadStatusEntity> basicDownloadStatusEntities = basicDownloadService.filterDownloadStatus(basicDownloadRequest);
        PageInfo<BasicDownloadStatusEntity> pageInfo;
        pageInfo = new PageInfo<>(basicDownloadStatusEntities);
        PageSimpleResponse<BasicDownloadStatusEntity> pageSimpleResponse = new PageSimpleResponse<>();
        pageSimpleResponse.setTotal(pageInfo.getTotal());
        pageSimpleResponse.setList(basicDownloadStatusEntities);
        return ResultVOUtils.success(pageSimpleResponse);
    }


    @PostMapping("/spssync/download/basic/udiinfo/deleteByStatus")
    public BaseResponse deleteByStatus(@RequestBody DeleteRequest deleteRequest) {

        boolean b = basicDownloadService.deleteById(deleteRequest.getId());
        redisUtil.del(deleteRequest.getId());
        if (b)
            return ResultVOUtils.success("删除成功！");
        else
            return ResultVOUtils.error(500, "删除失败！");
    }

    @PostMapping("/spssync/download/basic/udiinfo/updateStatus")
    public BaseResponse updateStatus(@RequestBody BasicDownloadStatusEntity basicDownloadStatusEntity) {

        basicDownloadStatusEntity.setEndTime(new Date());
        basicDownloadStatusEntity.setUpdateTime(new Date());
        boolean b = basicDownloadService.updateDownloadStatus(basicDownloadStatusEntity);
        if (b)
            return ResultVOUtils.success("更新成功！");
        else
            return ResultVOUtils.error(500, "更新成功！");
    }

    @GetMapping("/spssync/download/basic/connect/test")
    public BaseResponse testConnect() {
        return spGetHttp.testConnect();

    }

    @GetMapping("/sps/sync/download/info/file")
    public void downloadFile(HttpServletResponse response, String id){
        if (StrUtil.isBlank(id)) {
            throw new RuntimeException("缺少唯一标识");
        }
        BasicDownloadStatusEntity info = basicDownloadService.getById(id);
        if (info == null) {
            throw new RuntimeException("数据不存在");
        }
        if (StrUtil.isBlank(info.getCacheFilePath())) {
            throw new RuntimeException("文件未生成");
        }
        File file = new File(info.getCacheFilePath());
        if (!file.exists()) {
            throw new RuntimeException("文件丢失");
        }
        String[] split = info.getCacheFilePath().split("/");
        String enFileName = URLEncoder.encode(split[split.length - 1], StandardCharsets.UTF_8);
        // 设值返回文件属性，浏览器会根据属性调用下载文件方法
        response.addHeader("Content-Disposition", "attachment;filename=" + enFileName);
        // 前端获取文件名，需要解码
        response.addHeader("downLoadName", enFileName);
        // 定义输出流
        ServletOutputStream outputStream = null;
        FileInputStream fileInputStream = null;
        try {
            outputStream = response.getOutputStream();
            // 定义输出类型为二进制流输出
            response.setContentType("application/octet-stream");
            fileInputStream = new FileInputStream(file);
            byte[] bytes = new byte[fileInputStream.available()];
            fileInputStream.read(bytes);
            // 把流写入response
            outputStream.write(bytes);
            // flush落盘
            outputStream.flush();
            // 关闭输出流
            outputStream.close();
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            if (outputStream != null) {
                try {
                    outputStream.close();
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            if (fileInputStream != null) {
                try {
                    fileInputStream.close();
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        }
    }

}