package cn.com.goldenwater.dcproj.controller.system;

import cn.com.goldenwater.core.web.BaseController;
import cn.com.goldenwater.core.web.BaseResponse;
import cn.com.goldenwater.dcproj.model.Version;
import cn.com.goldenwater.dcproj.service.GwComFileService;
import cn.com.goldenwater.dcproj.service.VersionService;
import cn.com.goldenwater.id.util.UuidUtil;
import cn.com.goldenwater.util.common.FileUtils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.Calendar;
import java.util.Date;

/**
 * @author zhaohg
 * @date 2018-11-9
 */
@Api(value = "获取版本号信息", tags = "04获取版本号信息")
@RestController
@RequestMapping("/version")
public class VersionController extends BaseController {

    private Logger logger = LoggerFactory.getLogger(getClass());

    @Autowired
    private VersionService versionService;

    @Value("${web.apk-path}")
    public String apkPath;

    @Autowired
    private GwComFileService gwComFileService;

    @ApiOperation(value = "添加文件", notes = "参数字段说明:{\n\r" +
            "   \"file\"：\"上传文件\",\n\r" +
            "   \"versions\"：\"版本号\",\n\r" +
            "   \"updateContent\"：\"更新内容\",\n\r" +
            "   \"appName\"：\"APP名称\",\n\r" +
            "   \"forceUpdate\"：\"是否强制更新\",\n\r" +
            "   };\n\r" +
            "返回结构说明：{\n\r" +
            "   \"success\"：\"是否成功（true为成功，false为失败）\",\n\r" +
            "   \"code\"：\"错误代码\",\n\r" +
            "   \"message\"：\"描述信息\",\n\r" +
            "   \"throwable\"：\"异常信息\",\n\r" +
            "   \"data（数据信息）\"：{\n\r" +
            "       {\n\r" +
            "           \"id \"：\"主键id\",\n\r" +
            "       }\n\r" +
            "   }")
    @RequestMapping(value = "/insert", method = RequestMethod.POST)
    public BaseResponse<String> insert(@RequestParam("file") MultipartFile file, String versions,
                                       String updateContent, String appName, Integer forceUpdate) {
        String uuid = UuidUtil.uuid();  // 生成uuid
        Version version = new Version();
        version.setId(uuid);
        version.setAppName(appName);
        version.setVersion(versions);
        version.setUpdateContent(updateContent);
        version.setForceUpdate(forceUpdate);
        version.setPubDate(new Date());
        version.setFileSize(file.getSize());
        String originalFilename = file.getOriginalFilename();
        version.setFileName(originalFilename);
        String ext = originalFilename.substring(1 + originalFilename.lastIndexOf("."));
        //按时间日期存文件
        Calendar dat = Calendar.getInstance();
        String filePath = apkPath + dat.get(Calendar.YEAR) + File.separator + (dat.get(Calendar.MONTH) + 1) + File.separator + dat.get(Calendar.DAY_OF_MONTH) + File.separator + uuid + "." + ext;
        version.setStorePath(filePath);

        //写入文件
        filePath = apkPath + dat.get(Calendar.YEAR) + File.separator + (dat.get(Calendar.MONTH) + 1) + File.separator + dat.get(Calendar.DAY_OF_MONTH);
        boolean success = gwComFileService.writeFile(uuid, ext, file, filePath);
        if (success) {
            int ret = versionService.insert(version);
        } else {
            return buildFailResponse(1001, "文件上传失败");
        }
        return buildSuccessResponse(uuid);
    }

    @ApiOperation(value = "获取最新版本号信息", notes = "参数字段说明:{\n\r" +
            "   （无）\",\n\r" +
            "   };\n\r" +
            "返回结构说明：{\n\r" +
            "   \"success\"：\"是否成功（true为成功，false为失败）\",\n\r" +
            "   \"code\"：\"错误代码\",\n\r" +
            "   \"message\"：\"描述信息\",\n\r" +
            "   \"throwable\"：\"异常信息\",\n\r" +
            "   \"data（数据信息）\"：\n\r" +
            "       {\n\r" +
            "           \"id \"：\"主键\",\n\r" +
            "           \"version \"：\"版本号\",\n\r" +
            "           \"updateContent \"：\"更新内容\",\n\r" +
            "           \"storePath \"：\"下载地址\",\n\r" +
            "           \"appName \"：\"APP名称\",\n\r" +
            "           \"fileName \"：\"文件名称\",\n\r" +
            "           \"forceUpdate \"：\"是否强制更新\",\n\r" +
            "           \"pubDate \"：\"发布时间\",\n\r" +
            "   }")
    @RequestMapping(value = "/getLastest", method = {RequestMethod.POST})
    public BaseResponse<Version> getLastest(@ApiParam(name = "version", value = "当前版本号", required = false) @RequestParam(required = false) String version) {
        Version v = versionService.getLatestVersion();
        String v1 = v.getVersion();

        int num1 = 0;
        if (!StringUtils.isBlank(v1)) {
            num1 = Integer.parseInt(v1);
        }
        int num2 = 0;
        if (StringUtils.isBlank(version)) {
            v.setForceUpdate(1);
        } else {
            num2 = Integer.parseInt(version);
        }
        if (num1 - num2 > 1) {
            v.setForceUpdate(1);
        }
        if (v.getUpdateContent() != null) {
            String content = v.getUpdateContent().replaceAll("\\\\n", "\n");
            v.setUpdateContent(content);
        }
        return buildSuccessResponse(v);
    }

    @ApiOperation(value = "下载文件", notes = "参数字段说明:{\n\r" +
            "   \"id\"：\"版本id\",\n\r" +
            "   };\n\r" +
            "返回结构说明：{\n\r" +
            "   \"success\"：\"是否成功（true为成功，false为失败）\",\n\r" +
            "   \"code\"：\"错误代码\",\n\r" +
            "   \"message\"：\"描述信息\",\n\r" +
            "   \"throwable\"：\"异常信息\",\n\r" +
            "   \"data（数据信息）\"：{\n\r" +
            "       {\n\r" +
            "           \"file \"：\"文件\",\n\r" +
            "       }\n\r" +
            "   }")
    @RequestMapping(value = "/download", method = RequestMethod.GET)
    public void download(HttpServletResponse response) {
        Version version = versionService.getLatestVersion();
        if (version != null) {
            //获取文件路径
            String filePath = version.getStorePath();
            File file = new File(filePath);
            //判断文件是否存在
            if (FileUtils.exist(filePath)) {
                String fileName = org.apache.commons.lang3.StringUtils.defaultString(version.getFileName(), "文件");
                try {
                    response.setHeader("Content-Disposition", "attachment; filename=" + fileName);
                    response.setHeader("Content-Length", "" + version.getFileSize());
                    //response.setHeader("Content-Type","application/vnd.android.package-archive");
                    InputStream inputStream = new FileInputStream(file);
                    if (inputStream != null) {
                        OutputStream os = response.getOutputStream();
                        try {
                            int len = 0;
                            byte[] buffer = new byte[4096];
                            while ((len = inputStream.read(buffer, 0, buffer.length)) != -1) {
                                os.write(buffer, 0, len);
                            }
                        } catch (Exception e) {
                            e.printStackTrace();
                        } finally {
                            inputStream.close();
                        }
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}