package com.zadanie1.mw;

import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class Noto extends AppCompatActivity {
    EditText ChangeNote;
    Button SaveNote;

    private static final String FILE_NAME = "notes.txt";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_noto);

        ChangeNote = (EditText) findViewById(R.id.changeNote);
        SaveNote = (Button) findViewById(R.id.SaveNote);
                FileInputStream fis = null;

                try {
                    fis = openFileInput(FILE_NAME);
                    InputStreamReader isr = new InputStreamReader(fis);
                    BufferedReader br = new BufferedReader(isr);
                    StringBuffer sb = new StringBuffer();
                    String text;

                    while ((text = br.readLine()) != null) {
                        sb.append(text).append("\n");
                    }

                    if (sb.toString() != null) {
                        ChangeNote.setText(sb.toString());
                    }
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } finally {
                    if (fis != null){
                        try {
                            fis.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
    }


    public void save (View v) throws IOException {

        String text = ChangeNote.getText().toString();
        FileOutputStream fos = null;

        try {
            fos = openFileOutput(FILE_NAME, MODE_PRIVATE);
            fos.write(text.getBytes());

            ChangeNote.getText().clear();
            Toast.makeText(this, "Saved to " + getFilesDir() + "/" + FILE_NAME, Toast.LENGTH_LONG).show();

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (fos != null){
                fos.close();
            }
        }
    }
}