import config from '../config';
import * as path from 'path';
import * as fs from 'fs-extra';

import ProcessHelper from '../util/ProcesHelper';
import FileObj from '../vo/FileObj';

class FileService {
    static async readPath(pathStr: string, showHidden: boolean): Promise<Array<FileObj>> {
        pathStr = decodeURIComponent(pathStr);
        let fileList = new Array();
        if (pathStr.trim().length == 0) {
            //获取根目录路径
            if (config.isWindows) {
                //windows下
                let std: string = ((await ProcessHelper.exec('wmic logicaldisk get caption')) as Object)['stdout'].replace('Caption', '');
                fileList = std
                    .split('\r\n')
                    .filter((item) => item.trim().length > 0)
                    .map((item) => item.trim());
            } else {
                //linux下
                pathStr = '/';
                fileList = await fs.readdir(pathStr);
            }
        } else {
            fileList = await fs.readdir(pathStr);
        }
        let folderList: Array<FileObj> = new Array();
        let files: Array<FileObj> = new Array();
        for (let index in fileList) {
            try {
                let stat = await fs.stat(path.join(pathStr, fileList[index]));
                if (fileList[index].startsWith('.')) {
                    if (showHidden) {
                        (stat.isDirectory() ? folderList : files).push(
                            new FileObj(fileList[index], pathStr, stat.isDirectory(), stat.birthtime.getTime(), stat.mtime.getTime()),
                        );
                    }
                } else {
                    (stat.isDirectory() ? folderList : files).push(
                        new FileObj(fileList[index], pathStr, stat.isDirectory(), stat.birthtime.getTime(), stat.mtime.getTime()),
                    );
                }
            } catch (e) {
                console.error(e);
            }
        }
        folderList.sort((a, b) => a.name.localeCompare(b.name)).push(...files.sort((a, b) => a.name.localeCompare(b.name)));
        return folderList;
    }

    static async checkExist(pathStr: string) {
        return await fs.pathExists(pathStr);
    }
}

export default FileService;