//Assignment #: Arizona State University CSE205 #6
//Name: Summer Beckman
//StudentID: 1216922252
//Lecture: MW 4:35
//Description: CreatePane generates a pane where a user can enter
//a club information and create a list of available clubs.

//import all other necessary javafx classes here
//----
import java.util.ArrayList;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.event.ActionEvent;	//**Need to import
import javafx.event.EventHandler;	//**Need to import
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.layout.*;
import javafx.scene.control.*;
import javafx.scene.control.Button;

public class CreatePane extends HBox
{
	ArrayList<Club> clubList;

	//The relationship between CreatePane and SelectPane is Aggregation
	private SelectPane SelectPane;
	private TextArea textSpace;
	private Button create;
	private TextField text1, text2, text3;
	private Label titleLabel, memberLabel, uniLabel, infoText;

	//constructor
	public CreatePane(ArrayList<Club> list, SelectPane sePane)
	{
		this.clubList = list;
		this.SelectPane = sePane;

		//initialize each instance variable (textfields, labels, textarea, button, etc.)
		//and set up the layout
		//----
		this.titleLabel = new Label("Title");
		this.memberLabel = new Label("Number of Members");
		this.uniLabel = new Label("University");
		this.create = new Button("Create a club");
		this.infoText = new Label("/n");
		this.textSpace = new TextArea();
		this.text1 = new TextField("");
		this.text2 = new TextField("");
		this.text3 = new TextField("");
		this.getChildren().addAll(titleLabel, memberLabel,uniLabel, create, textSpace, text1, text2, text3);

		//create a GridPane hold those labels & text fields.
		//you can choose to use .setPadding() or setHgap(), setVgap()
		//to control the spacing and gap, etc.
		//----
		GridPane centerPane = new GridPane();
		centerPane.setHgap(10);
		centerPane.setVgap(10);
		centerPane.setPadding(new Insets(10, 10, 10, 10));
		centerPane.setAlignment(Pos.CENTER);

		//You might need to create a sub pane to hold the button
		//----
		GridPane.setConstraints(uniLabel, 0, 2);
		GridPane.setConstraints(text3, 1, 2);

		GridPane.setConstraints(memberLabel, 0, 1);
		GridPane.setConstraints(text2, 1, 2);

		GridPane.setConstraints(titleLabel, 0, 0);
		GridPane.setConstraints(text1, 1, 2);

		GridPane.setConstraints(create, 1, 3);

		centerPane.getChildren().addAll(uniLabel, text3, memberLabel, text2, titleLabel, text1);
		//register/link source object with event handler
		//----
		textSpace.setVisible(true);
		textSpace.resizeRelocate(0, 40, 500, 400);
		for (Club each : clubList)
		{
			textSpace.appendText(textSpace.getText() + each.toString());
		}
	} //end of constructor

//Create a ButtonHandler class
//ButtonHandler listens to see if the button "Create" is pushed or not,
//When the event occurs, it get a club's Title, its number of members, and its university
//information from the relevant text fields, then create a new club and add it inside
//the clubList. Meanwhile it will display the club's information inside the text area.
//using the toString method of the Club class.
//It also does error checking in case any of the textfields are empty,
//or a non-numeric value was entered for its number of members
private class ButtonHandler implements EventHandler<ActionEvent>
{
	//Override the abstact method handle()
	public void handle(ActionEvent event)
	{
		//declare any necessary local variables here
		//---
		int numMembers;
		String title = text1.getText();
		String members = text3.getText();
		String university = text2.getText();

		//when a text field is empty and the button is pushed
        //handle the case here
		if (title.equalsIgnoreCase("") || university.equalsIgnoreCase("") || members.equalsIgnoreCase(""))
		{
			infoText.setTextFill(Color.RED);
			infoText.setText("Please fill all fields.");
			return;

        } else {
         //when a non-numeric value was entered for its number of members
         //and the button is pushed
         //you will need to use try & catch block to catch
         //the NumberFormatException
         //----
        	try {
        		numMembers = Integer.parseInt(members);
        	}
        	catch
        		(NumberFormatException e){
        			infoText.setTextFill(Color.RED);
        			infoText.setText("Please enter a integer for a number of members.");
        			return;
        		}

         //When a club of an existing club name in the list
         //was attempted to be added, do not add it to the list
         //and display a message "Club not added - duplicate"

         for (Club each : clubList)
         {
        	 if (each.getClubName().equalsIgnoreCase(title));
        	 {
        		 infoText.setTextFill(Color.RED);
        		 infoText.setText("Club not added - duplicate");
        		 return;
        	 }
         }

         //at the end, don't forget to update the new arrayList
         //information on the SelectPanel
         //----
         infoText.setText("");
         Club club = new Club(titleLabel.getText(), numMembers, uniLabel.getText());
         SelectPane.updateClubList(club);
         textSpace.appendText(club.toString());
        	}

		} //end of handle() method
	} //end of ButtonHandler class
}