package org.springblade.modules.FTP;

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import static org.springblade.common.config.FtpConfig.*;
import static org.springblade.common.config.FtpConfig.ftpPath;

public class FtpMain {
	public static void main(String[] args) throws FileNotFoundException {
		while (true){
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			readFile();
		}
	}

	public static boolean readFile() {
		FTPClient ftp = new FTPClient();
		System.out.println("ftp 创建客户端");
		try {
			//设置超时时间
//			ftp.setConnectTimeout(3000);
			//连接
			ftp.connect(ftpHost, ftpPort);
			System.out.println("ftp 连接成功!");
			// 登陆
			ftp.login(ftpUserNameIn, ftpPasswordIn);
			// 检验登陆操作的返回码是否正确
			if (!FTPReply.isPositiveCompletion(ftp.getReplyCode())) {
				ftp.disconnect();
				return false;
			}

			ftp.enterLocalActiveMode();

			// 设置文件类型为二进制，与ASCII有区别
			ftp.setFileType(FTP.BINARY_FILE_TYPE);

			// 设置编码格式
			ftp.setControlEncoding("GBK");

			// 检验文件是否存在
			ftp.changeWorkingDirectory(ftpPath);

			// Use passive mode as default
			ftp.enterLocalPassiveMode();

			FTPFile[] files = ftp.listFiles();
			if (files.length==0){
				return false;
			}
			else {
				for (FTPFile file : files) {
					String fileName = file.getName();
					InputStream is = ftp.retrieveFileStream(new String(fileName.getBytes("GBK"), FTP.DEFAULT_CONTROL_ENCODING));
					if (null == is) {
						return false;
					} else {
						String substring1 = fileName.substring(0, 4);
						if (substring1.equals("nsql")) {
							//把文件下载到本地
							FtpUtil.downloadFtpFile(ftpHost, ftpUserNameIn, ftpPasswordIn, ftpPort, ftpPath, localPath, fileName);
							//
							String s = OutJson.TestJson(fileName);
							//sql语句
							String sql = OutJson.stringReplace(s);
							String[] split = sql.split(";");//以逗号分割
							for (String sqls : split) {
								//判断是否是新增，删除，修改
								String substring = sqls.substring(0, 2);
								//新增
								if (substring.equals("in")) {
									//运行sql语句
									MysqlCenlint.inster(sqls);
								}
								//修改
								else if (substring.equals("up")) {
									MysqlCenlint.update(sqls);
								}
								//删除
								else {
									MysqlCenlint.delete(sqls);
								}
							}
							//删除本地服务器文件
							MysqlCenlint.deletess(fileName);
							//删除 ftp 服务器文件
							FtpUtil.deleteFile(ftpHost, ftpPort, ftpUserNameIn, ftpPasswordIn, ftpPath, fileName);
						}
						//关闭流
						is.close();
						ftp.completePendingCommand();
					}
					return true;
				}
			}
		} catch (Exception e) {
			System.out.println("ftp连接失败");
			e.printStackTrace();
		} finally {
			if (ftp.isConnected()) {
				try {
					ftp.disconnect();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		return false;
	}
}