/*SentenceRecorder.java
takes a sentence or word as input and saves it on text file. Every new word/sentence is appended at the end of the file
*/
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import static java.awt.GridBagConstraints.*;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Dimension;
import java.io.File;


import java.nio.file.Files;//for readAllLines()
import java.nio.file.Paths;//used to get the path of the file
import java.util.ArrayList;//to work with the array list to save the sentences in an ArrayList
import java.util.List;
import java.util.Collection;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

import java.util.Scanner;
import java.io.FileWriter;
import java.lang.SecurityException;//if no permission to write to file
import java.io.FileNotFoundException;//if the file can't be created
import java.io.IOException;
import java.util.Properties;//to get working directory
import java.io.BufferedWriter;

public class SentenceRecorder extends JFrame{
	private JLabel instructions;
	private JButton submit;
	private GridBagLayout gbLayout;
	private JButton clear;
	private JTextArea input;
	private String stringInput;
	private ArrayList< String > allSentences = new ArrayList< String >();//stores all the sentences in the file
	private String filePath;
	private String fileName;
	private File file;
	private BufferedWriter fileWriter;
	private String workingDir;
	private String separator;
	private Scanner scannerInput;//to input data into the file
	private Scanner scannerOutput;//to output data from the file
	private final static Charset ENCODING = StandardCharsets.UTF_8;
	//private Properties workingDir;
	/* private String string1;
	private String string2; */
	public SentenceRecorder(){
		super("List of sentences to remember");
		separator = System.getProperty("line.separator");//getting the system-dependent separator
		workingDir = System.getProperty("user.dir");
		instructions = new JLabel("Enter your sentence.");
		input = new JTextArea(10,12);//holds the text input
		submit = new JButton("Submit");//submit button
		clear = new JButton("Clear");//clear button
		stringInput = "";//initialize string to empty
		gbLayout = new GridBagLayout();
		//System.out.println("workingDir is " + workingDir);
		//input = new Scanner(System.in);
		fileName = "sample.txt";
		/* filePath = workingDir + "\\sample.txt";
		file = new File(filePath);	 */
		file = new File(workingDir, fileName);
		allSentences = fileInArray();//copying content of file in arrayList
		printSentenceArray();
		setLayout(gbLayout);//set layout of jframe
		add(instructions, new GridBagConstraints(0,0,2,1,0,0,CENTER,HORIZONTAL, new Insets(10,15,10,15),0,0));
		add(new JScrollPane(input), new GridBagConstraints(0,1,2,1,0.5,0.5,CENTER,BOTH, new Insets(10,15,10,15),10,10));
		add(submit, new GridBagConstraints(0,2,1,1,1.0,1.0,CENTER,HORIZONTAL,new Insets(10,15,10,15),1,1));
		add(clear, new GridBagConstraints(1,2,1,1,1.0,1.0,CENTER,HORIZONTAL,new Insets(10,15,10,15),1,1));
		//System.out.printf("Enter your sentence or end of file - ctrl+z or Enter+ctrl+d\n");

		ProcessButtonHandling handler1 = new ProcessButtonHandling();
		ClearButtonHandling handler2 = new ClearButtonHandling();
		submit.addActionListener(handler1);
		clear.addActionListener(handler2);
	}//end of constructor
	//inner class for event handlings
	private class ProcessButtonHandling implements ActionListener{
		public void actionPerformed(ActionEvent event){
			stringInput = input.getText();//copy text from textArea to string
			scannerInput = new Scanner(stringInput);
			try{
				fileWriter = new BufferedWriter( new FileWriter(file,true));
			}
			catch(SecurityException securityException){//if you don't have write access
				System.err.println("You don't have write access to this file");
				System.exit(1);
			}
			catch(FileNotFoundException fileNotFoundException){
				System.err.println("Error opening or creating the file");
				System.exit(1);
			}
			catch(IOException ioexception){
				System.err.println("General Error with IO");
				System.exit(1);
			}
			while(scannerInput.hasNext()){
				stringInput = scannerInput.nextLine();
				try{
					fileWriter.append(stringInput + separator);
				}
				catch(IOException ioexception){
					System.err.println("General Error with IO");
					ioexception.printStackTrace();
					System.exit(1);
				}
				//System.out.printf("Enter your sentence or end of file - ctrl+z or Enter+ctrl+d\n");
			}
			CloseFile();
			Clear();
		}//end of actionPerformed

	}//end of inner class
	private class ClearButtonHandling implements ActionListener{
		public void actionPerformed(ActionEvent event){
			Clear();
		}//end of actionPerformed
	}
	private void Clear(){
		stringInput = "";
		input.setText("");
		CloseFile();
	}
	public void CloseFile(){
		try{
			fileWriter.close();
		}
		catch(IOException ioexception){
				System.err.println("General Error with IO");
				ioexception.printStackTrace();
				System.exit(1);

			}
	}//closeFile
	public ArrayList<Object> fileInArray(){//save file text into array
		try{
			scannerOutput = new Scanner(new File(workingDir, fileName));
		}
		catch(FileNotFoundException fileNotFoundException){
			System.err.println("Error opening the file");
			System.exit(1);
		}
		Path path = Paths.get(fileName);
		return Files.readAllLines(path, ENCODING);

	}
	public void printSentenceArray(){
		System.out.println("Array contains: ");
		for(int count = 0; count < allSentences.size(); count++){
			System.out.printf("%s", allSentences.get(count));
		}

	}
	public String searchWord(){// search for keyword and return the whole string/s


	}
}//end of SentenceRecorder