using System;
using System.Collections.Generic;
using System.Text;

namespace ftpTransport
{
    class CompareAndOperate
    {
        /*類說明:
         * 進行文件名比較,如果沒有就實現下載,
         * 也就是均衡本地與遠程
         * 遠程沒有本地文件名就上傳本地多的文件
         * 本地沒有遠程的文件就下載遠程多的文件
         * 
         * 
         */
        public CompareAndOperate()
        {
        }
        //進行文件名比較,如果沒有就實現下載
        public CompareAndOperate(string [] localFiles,string [] RemoteFiles)
        {
            string curLocalFile;
            string curRemoteFile;
            bool isRemoteFind = false;
            bool isLocalFind = false;
            //遍歷本地
            for (int i = 0; i < localFiles.Length; i++)
            {
                curLocalFile = localFiles[i];
                for (int j = 0; j < RemoteFiles.Length; j++)
                {
                    if (curLocalFile == RemoteFiles[j])
                    {
                        isRemoteFind = true;
                        break;
                    }
                }
                if (!isRemoteFind)
                {//本地文件遠程目錄中沒有
                    UploadFiles(curLocalFile,curLocalFile);
                }
                isRemoteFind = false;
            }
            //遍歷遠程
            for (int i = 0; i < RemoteFiles.Length; i++)
            {
                curRemoteFile = RemoteFiles[i];
                for (int j = 0; j < localFiles.Length; j++)
                {
                    if (curRemoteFile == localFiles[j])
                    {
                        isLocalFind = true;
                        break;
                    }
                }
                if (!isLocalFind)
                {
                    DownLoadFiles(curRemoteFile);
                }
            }
            isLocalFind = false;
        }
        private void DownLoadFiles(string fileName)
        {
            ftpClient fc = new ftpClient();
            fc.DownLoadFile(fileName);
        }
        private void UploadFiles(string fileName)
        {
            ftpClient fc = new ftpClient();
            fc.UpLoadFile(fileName);
        }
    }
}