package Assignment6;

import java.awt.*;
import java.text.NumberFormat;
import java.util.ArrayList;

import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;

import javafx.event.ActionEvent;	//**Need to import
import javafx.event.EventHandler;	//**Need to import
import javafx.scene.paint.Color;
import javafx.scene.paint.Paint;

//import all other necessary javafx classes here
//----

public class CreatePane extends HBox
{
    ArrayList<Club> clubList;
    //The relationship between CreatePane and SelectPane is Aggregation
    private SelectPane selectPane;
    private Label topText, title, members, univ;
    private TextField titleInput, membersInput, univInput;
    private Button create;
    private TextArea area;


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

        this.topText = new Label("\n");
        this.title = new Label("Title");
        this.members = new Label("Number Of Members");
        this.univ = new Label("University");
        this.create = new Button("Create a Club");

        this.titleInput = new TextField("");
        this.membersInput = new TextField("");
        this.univInput = new TextField("");
        this.area = new TextArea();

        this.getChildren().addAll(topText,title,members,univ,create,titleInput,membersInput,univInput);
        //initialize each instance variable (textfields, labels, textarea, button, etc.)
        //and set up the layout
        //----


        //constants to gridpane
        GridPane grid = new GridPane();
        grid.setPadding(new Insets(10,10,10,10));
        grid.setVgap(10);
        grid.setHgap(10);

        GridPane.setConstraints(title, 0, 0);
        GridPane.setConstraints(titleInput, 1, 0);

        GridPane.setConstraints(members, 0, 1);
        GridPane.setConstraints(membersInput, 1, 1);

        GridPane.setConstraints(univ, 0, 2);
        GridPane.setConstraints(univInput, 1, 2);

        GridPane.setConstraints(create, 1, 3);

        grid.getChildren().addAll(title,members,univ,create,titleInput,membersInput,univInput);

        area.setVisible(true);
        area.resizeRelocate(0, 20, 450, 380);
        for (Club each : clubList)
        {
            area.appendText(area.getText()+each.toString());
        }
        this.getChildren().addAll(grid,area);
                //You might need to create a sub pane to hold the button
        //----

        //Set up the layout for the left half of the CreatePane.
        //----


        //the right half of the CreatePane is simply a TextArea object
        //Note: a ScrollPane will be added to it automatically when there are no
        //enough space

        //Add the left half and right half to the CreatePane
        //Note: CreatePane extends from HBox
        //----
        ButtonHandler handle = new ButtonHandler();
        create.setOnAction(handle);

    } //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>
    {
        public void handle(ActionEvent event)
        {
            //check to see if any input is empty
            if (titleInput.getText().equalsIgnoreCase("") || membersInput.getText().equalsIgnoreCase("")  || univInput.getText().equalsIgnoreCase("") )
            {
                topText.setText("Please enter all fields\n");
                topText.setTextFill(Color.RED);
                return;
            }

            String title = titleInput.getText();
            String univ = univInput.getText();
            int members;

            //check to see if second entry is integer
            try {
                members = Integer.parseInt(membersInput.getText());
            } catch (NumberFormatException e) {
                topText.setText("Please enter an integer for a number of members\n");
                topText.setTextFill(Color.RED);
                return;
            }


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

            //creation of club
            Club newClub = new Club(title,members,univ);
            selectPane.updateClubList(newClub);
            area.appendText(newClub.toString());
            topText.setText("");
            //at the end, don't forget to update the new arrayList
            //information on the SelectPanel
            //----

            //}

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


}