package com.tiesheng.util.pojos;

import cn.hutool.core.date.DateUtil;
import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.CharUtil;
import cn.hutool.core.util.IdUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.extra.spring.SpringUtil;
import cn.hutool.http.HttpUtil;
import com.tiesheng.util.config.GlobalConfig;

public class FileUploadPath {

    public static String UPLOAD_FOLDER = "/upload/";

    /**
     * 绝对路径
     */
    private String absolutePath;

    /**
     * 访问路径
     */
    private String httpPath;

    private FileUploadPath() {
    }

    /**
     * 获得一个文件路径
     *
     * @param fileName
     * @return
     */
    public static FileUploadPath file(String fileName) {

        // 下载文件
        fileName = fileDownload(fileName);

        FileUploadPath pathBean = new FileUploadPath();

        String tempPath = fileName;
        if (!StrUtil.startWith(tempPath, CharUtil.SLASH)) {
            tempPath = CharUtil.SLASH + tempPath;
        }
        if (!StrUtil.startWith(tempPath, UPLOAD_FOLDER)) {
            tempPath = UPLOAD_FOLDER + DateUtil.format(DateUtil.date(), "yyyy-MM") + CharUtil.SLASH + fileName;
        }
        pathBean.setHttpPath(tempPath);

        String tempAbs = String.format("%s/static%s", SpringUtil.getBean(GlobalConfig.class).getUploadDir(), tempPath);
        tempAbs = FileUtil.normalize(tempAbs);
        pathBean.setAbsolutePath(tempAbs);

        FileUtil.mkParentDirs(pathBean.getAbsolutePath());

        return pathBean;
    }


    /**
     * 下载http文件
     *
     * @param httpUrl
     * @return
     */
    public static String fileDownload(String httpUrl) {
        if (!StrUtil.startWith(httpUrl, "http")) {
            return httpUrl;
        }
        String newFileName = UPLOAD_FOLDER + StrUtil.subAfter(httpUrl, UPLOAD_FOLDER, true);
        FileUploadPath uploadPath = file(newFileName);
        if (!FileUtil.exist(uploadPath.getAbsolutePath())) {
            HttpUtil.downloadFile(httpUrl, uploadPath.getAbsolutePath());
        }

        return uploadPath.getHttpPath();
    }

    /**
     * 随机生成一个文件路径
     *
     * @return
     */
    public static FileUploadPath random(String fileExt) {
        String fileName = IdUtil.simpleUUID();
        if (!StrUtil.isEmpty(fileExt)) {
            fileName = fileName + "." + fileExt;
        }
        return file(fileName);
    }


    /**
     * 获取一个目录
     *
     * @param folder
     * @return
     */
    public static FileUploadPath folder(String folder) {
        FileUploadPath file = file(folder);
        FileUtil.mkdir(file.getAbsolutePath());
        return file;
    }


    ///////////////////////////////////////////////////////////////////////////
    // setter\getter
    ///////////////////////////////////////////////////////////////////////////

    public String getAbsolutePath() {
        return absolutePath;
    }

    public void setAbsolutePath(String absolutePath) {
        this.absolutePath = absolutePath;
    }

    public String getHttpPath() {
        return httpPath;
    }

    public void setHttpPath(String httpPath) {
        this.httpPath = httpPath;
    }
}