package net.droidtech.agct;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {

    private ProgressDialog inProgress;
    private EditText msgInput;
    private EditText output;
    private static ThreadResultHandler threadHandler;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        inProgress=new ProgressDialog(this);
        inProgress.setTitle(R.string.please_wait);
        inProgress.setMessage(this.getApplicationContext().getResources().getString(R.string.in_progress));
        inProgress.setCancelable(false);

        threadHandler = new ThreadResultHandler();
;
        this.msgInput=this.findViewById(R.id.messageInput);
        this.output=this.findViewById(R.id.output);

        output.setEnabled(false);

        Button encode=this.findViewById(R.id.encode);
        encode.setOnClickListener(new View.OnClickListener(){

            @Override
            public void onClick(View view){

                EncodeThread thread=new EncodeThread();

                try {

                    thread.putRawData(msgInput.getText().toString().getBytes("UTF-8"));

                }catch (Exception e){

                    Toast.makeText(MainActivity.this,R.string.encoding_error,Toast.LENGTH_LONG).show();

                    return;

                }
                thread.setHandler(threadHandler);
                inProgress.show();
                thread.start();

            }

        });

        Button decode=findViewById(R.id.decode);
        decode.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                DecodeThread thread=new DecodeThread();
                thread.setHandler(threadHandler);

                if(msgInput.getText().toString().trim().isEmpty()){

                    String first=((ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE)).getPrimaryClip().getItemAt(0).getText().toString();

                    Toast.makeText(MainActivity.this,R.string.read_clipboard,Toast.LENGTH_LONG).show();
                    thread.putEncodedData(first);

                }else {

                    thread.putEncodedData(msgInput.getText().toString());

                }

                inProgress.show();
                thread.start();

            }
        });

        Button copy_output=findViewById(R.id.copy_output);
        copy_output.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                if(threadHandler.lastOutputMessage!=null){

                    ClipboardManager cm =(ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);

                    ClipData cd = ClipData.newPlainText("output",threadHandler.lastOutputMessage);

                    cm.setPrimaryClip(cd);

                    Toast.makeText(MainActivity.this,R.string.copied,Toast.LENGTH_LONG).show();

                }


            }
        });

    }

    private class ThreadResultHandler extends Handler{

        private String lastOutputMessage=null;

        @Override
        public void handleMessage(Message msg){
            try {

                if (msg.what == 2) {

                    output.setEnabled(false);

                    if(((String)msg.obj).length()>1024){

                        output.setText(MainActivity.this.getResources().getText(R.string.message_too_long));

                    }else {

                        output.setText((String) msg.obj);

                    }

                    lastOutputMessage=(String)msg.obj;

                } else if (msg.what == 4) {

                    output.setEnabled(true);

                    output.setText(new String(((byte[]) msg.obj), "UTF-8"));

                    this.lastOutputMessage=new String(((byte[]) msg.obj), "UTF-8");

                }

            }catch(Exception e){

                output.setText(MainActivity.this.getResources().getString(R.string.error));
                output.setEnabled(false);

            }

            if(msg.what==1) {

                output.setText(R.string.error);
                lastOutputMessage=MainActivity.this.getString(R.string.error);
                output.setEnabled(false);

            }

            inProgress.dismiss();
        }
    }

}