package rep;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.LinkedList;
import java.util.List;

import rep.channel.REPSocketChannel;
import rep.translater.TranslaterImp1;

public class Editor {
	private int eid;
	private REPSocketChannel<REPCommand> myChannel;
	private String host;
	//private String port;
	private String file;
	private TranslaterImp1 translater;
	private List<REPCommand> sentList;
	
	public Editor(){
		setHostAndPort(myChannel);
		translater = new TranslaterImp1(eid);
		sentList = new LinkedList<REPCommand>();
	}

	public Editor(int editorNo, REPSocketChannel<REPCommand> channel){
		this.eid = editorNo;
		this.myChannel = channel;
		translater = new TranslaterImp1(eid);
		sentList = new LinkedList<REPCommand>();
		setHostAndPort(myChannel);
	}
	
	public Editor(REPSocketChannel<REPCommand> channel) {
		this.myChannel = channel;
		setHostAndPort(myChannel);
		translater = new TranslaterImp1(eid);
		sentList = new LinkedList<REPCommand>();
	}
	
	public LinkedList<REPCommand> translate(REPCommand command){
		LinkedList<REPCommand> list = new LinkedList<REPCommand>();
		if(command.eid == eid){
			if(checkReturnedCommand(command)){
				//エディタからのコマンドが元のエディタに戻ってきた
				//マージして送信
				REPCommand[] cmds = translater.catchOwnCommand(command);
				sendMergedCommand(cmds);
				return null;
			}else{
				//エディタからの新たな編集コマンド
				sentList.add(command);
				translater.transSendCmd(command);
				list.add(command);
			}
		}else{
			//他のエディタからの編集コマンド
			REPCommand[] cmds = translater.transReceiveCmd(command);
			for(REPCommand cmd : cmds){
				list.add(cmd);
			}
		}
		return list;
	}
	
	private void sendMergedCommand(REPCommand[] cmds) {
		for(int i = 0; i < cmds.length; i++){
			try {
				REPCommand mergeCommand = cmds[i];
				mergeCommand.setEID(REP.MERGE_EID);
				myChannel.write(pack(mergeCommand));
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

	private boolean checkReturnedCommand(REPCommand command) {
		if(sentList.size() > 0){
			if(sentList.get(0).seq == command.seq){
				sentList.remove(0);
				return true;
			}else{
				System.out.println("error:Editor.checkReturnedCommand()");
			}
		}
		return false;
	}

	private void setHostAndPort(REPSocketChannel<REPCommand> myChannel2) {
		host = myChannel2.socket().getRemoteSocketAddress().toString();
		
	}

	public REPSocketChannel<REPCommand> getChannel() {
		return myChannel;
	}
	
	public void setHost(String host){
		this.host = host;
	}

	
	public String getHost(){
		return host;
	}


	public int getEID() {
		return eid;
	}

	public void setEID(int eid) {
		this.eid = eid;
	}
	public String toString(){
		return (host  + ":" + file);
	}

	public String getName() {
		return file;
	}

	public void setName(String string) {
		file = string;
	}

	public void send(REPCommand repCmd) {
		try {
			myChannel.write(pack(repCmd));
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private ByteBuffer pack(REPCommand repCmd) {
		// TODO Auto-generated method stub
		return null;
	}

	public void setChannel(REPSocketChannel<REPCommand> channel) {
		myChannel = channel;
	}

	public boolean isMerging() {
		return translater.isMerging();
	}

}