package gui;


import enumeration.Color;
import enumeration.GameMode;
import enumeration.GuiStyle;
import utility.GameParameters;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


public class SettingsWindow extends JFrame {
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 6651737783332653136L;

	private final JComboBox<String> gui_style_drop_down;
	private final JComboBox<String> game_mode_drop_down;
	private final JComboBox<Integer> max_depth1_drop_down;
	private final JComboBox<Integer> max_depth2_drop_down;
	private final JComboBox<String> player1_color_drop_down;
	private final JComboBox<String> player2_color_drop_down;
	
	private final JButton apply;
	private final JButton cancel;

	public static int width = 450;
	public static int height = 340;
	
	
	public SettingsWindow() {
		super("Settings");
		
		setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		setLayout(null);
		setSize(width, height);
		setLocationRelativeTo(null);
		setResizable(false);

		EventHandler handler = new EventHandler();
		
		GuiStyle selectedGuiStyle = GameParameters.guiStyle;
		GameMode selectedMode = GameParameters.gameMode;
		int maxDepth1 = GameParameters.maxDepth1 - 1;
		int maxDepth2 = GameParameters.maxDepth2 - 1;
		Color selectedPlayer1Color = GameParameters.player1Color;
		Color selectedPlayer2Color = GameParameters.player2Color;

		JLabel guiStyleLabel = new JLabel("GUI style");
		JLabel gameModeLabel = new JLabel("Game mode");
		JLabel maxDepth1Label = new JLabel("AI 1 depth");
		JLabel maxDepth2Label = new JLabel("AI 2 depth (AiVsAi)");
		JLabel player1ColorLabel = new JLabel("Player 1 color");
		JLabel player2ColorLabel = new JLabel("Player 2 color");
		
		add(guiStyleLabel);
		add(gameModeLabel);
		add(maxDepth1Label);
		add(maxDepth2Label);
		add(player1ColorLabel);
		add(player2ColorLabel);
		
		gui_style_drop_down = new JComboBox<>();
		gui_style_drop_down.addItem("System style");
		gui_style_drop_down.addItem("Cross-platform style");
		gui_style_drop_down.addItem("Nimbus style");
		
		if (selectedGuiStyle == GuiStyle.SYSTEM_STYLE)
			gui_style_drop_down.setSelectedIndex(0);
		else if (selectedGuiStyle == GuiStyle.CROSS_PLATFORM_STYLE)
			gui_style_drop_down.setSelectedIndex(1);
		else if (selectedGuiStyle == GuiStyle.NIMBUS_STYLE)
			gui_style_drop_down.setSelectedIndex(2);
		
		game_mode_drop_down = new JComboBox<>();
		game_mode_drop_down.addItem("Human Vs Minimax AI");
		game_mode_drop_down.addItem("Human Vs Human");
		game_mode_drop_down.addItem("Minimax AI Vs Minimax AI");
		game_mode_drop_down.addItem("Random Choice AI Vs Random Choice AI");
		
		if (selectedMode == GameMode.HUMAN_VS_MINIMAX_AI)
			game_mode_drop_down.setSelectedIndex(0);
		else if (selectedMode == GameMode.HUMAN_VS_HUMAN)
			game_mode_drop_down.setSelectedIndex(1);
		else if (selectedMode == GameMode.MINIMAX_AI_VS_MINIMAX_AI)
			game_mode_drop_down.setSelectedIndex(2);
		else if (selectedMode == GameMode.RANDOM_CHOICE_AI_VS_RANDOM_CHOICE_AI)
			game_mode_drop_down.setSelectedIndex(3);
		
		max_depth1_drop_down = new JComboBox<>();
		max_depth1_drop_down.addItem(1);
		max_depth1_drop_down.addItem(2);
		max_depth1_drop_down.addItem(3);
		max_depth1_drop_down.addItem(4);
		max_depth1_drop_down.addItem(5);
		max_depth1_drop_down.addItem(6);
		max_depth1_drop_down.addItem(7);
		
		max_depth2_drop_down = new JComboBox<>();
		max_depth2_drop_down.addItem(1);
		max_depth2_drop_down.addItem(2);
		max_depth2_drop_down.addItem(3);
		max_depth2_drop_down.addItem(4);
		max_depth2_drop_down.addItem(5);
		max_depth2_drop_down.addItem(6);
		max_depth2_drop_down.addItem(7);
		
		max_depth1_drop_down.setSelectedIndex(maxDepth1);
		max_depth2_drop_down.setSelectedIndex(maxDepth2);
		
		player1_color_drop_down = new JComboBox<>();
		player1_color_drop_down.addItem("Red");
		player1_color_drop_down.addItem("Yellow");
		player1_color_drop_down.addItem("Black");
		player1_color_drop_down.addItem("Green");
		player1_color_drop_down.addItem("Orange");
		player1_color_drop_down.addItem("Purple");
		
		if (selectedPlayer1Color == Color.RED)
			player1_color_drop_down.setSelectedIndex(0);
		else if (selectedPlayer1Color == Color.YELLOW)
			player1_color_drop_down.setSelectedIndex(1);
		else if (selectedPlayer1Color == Color.BLACK)
			player1_color_drop_down.setSelectedIndex(2);
		else if (selectedPlayer1Color == Color.GREEN)
			player1_color_drop_down.setSelectedIndex(3);
		else if (selectedPlayer1Color == Color.ORANGE)
			player1_color_drop_down.setSelectedIndex(4);
		else if (selectedPlayer1Color == Color.PURPLE)
			player1_color_drop_down.setSelectedIndex(5);
		
		player2_color_drop_down = new JComboBox<>();
		player2_color_drop_down.addItem("Red");
		player2_color_drop_down.addItem("Yellow");
		player2_color_drop_down.addItem("Black");
		player2_color_drop_down.addItem("Green");
		player2_color_drop_down.addItem("Orange");
		player2_color_drop_down.addItem("Purple");
		
		if (selectedPlayer2Color == Color.RED)
			player2_color_drop_down.setSelectedIndex(0);
		else if (selectedPlayer2Color == Color.YELLOW)
			player2_color_drop_down.setSelectedIndex(1);
		else if (selectedPlayer2Color == Color.BLACK)
			player2_color_drop_down.setSelectedIndex(2);
		else if (selectedPlayer2Color == Color.GREEN)
			player2_color_drop_down.setSelectedIndex(3);
		else if (selectedPlayer2Color == Color.ORANGE)
			player2_color_drop_down.setSelectedIndex(4);
		else if (selectedPlayer2Color == Color.PURPLE)
			player2_color_drop_down.setSelectedIndex(5);
		
		add(gui_style_drop_down);
		add(game_mode_drop_down);
		add(max_depth1_drop_down);
		add(max_depth2_drop_down);
		add(player1_color_drop_down);
		add(player2_color_drop_down);

		guiStyleLabel.setBounds(25, 25, 200, 25);
		gameModeLabel.setBounds(25, 60, 200, 25);
		maxDepth1Label.setBounds(25, 95, 200, 25);
		maxDepth2Label.setBounds(25, 130, 200, 25);
		player1ColorLabel.setBounds(25, 165, 200, 25);
		player2ColorLabel.setBounds(25, 200, 200, 25);
		
		gui_style_drop_down.setBounds(195, 25, 200, 25);
		game_mode_drop_down.setBounds(195, 60, 200, 25);
		max_depth1_drop_down.setBounds(195, 95, 200, 25);
		max_depth2_drop_down.setBounds(195, 130, 200, 25);
		player1_color_drop_down.setBounds(195, 165, 200, 25);
		player2_color_drop_down.setBounds(195, 200, 200, 25);
		
		apply = new JButton("Apply");
		cancel = new JButton("Cancel");
		add(apply);
		add(cancel);
		
		int distance = 10;
		apply.setBounds((width / 2) - 110 - (distance / 2), 250, 100, 30);
		apply.addActionListener(handler);
		cancel.setBounds((width / 2) - 10 + (distance / 2), 250, 100, 30);
		cancel.addActionListener(handler);
	}


	private class EventHandler implements ActionListener {
		
		@Override
		public void actionPerformed(ActionEvent ev) {
			
			if (ev.getSource() == cancel) {
				dispose();
			}
			
			else if (ev.getSource() == apply) {
				try {
					
					GuiStyle guiStyle = 
						GuiStyle.valueOf(gui_style_drop_down.getSelectedItem().toString().toUpperCase().replace("-", "_").replace(" ", "_"));
					GameMode gameMode =
						GameMode.valueOf(game_mode_drop_down.getSelectedItem().toString().toUpperCase().replace(" ", "_"));
					int maxDepth1 = (int) max_depth1_drop_down.getSelectedItem();
					int maxDepth2 = (int) max_depth2_drop_down.getSelectedItem();
					Color player1Color = 
						Color.valueOf(player1_color_drop_down.getSelectedItem().toString().toUpperCase());
					Color player2Color =
						Color.valueOf(player2_color_drop_down.getSelectedItem().toString().toUpperCase());
										
					if (player1Color == player2Color) {
						JOptionPane.showMessageDialog(null,
								"Player 1 and Player 2 cannot have the same color of checkers!",
								"ERROR", JOptionPane.ERROR_MESSAGE);
						return;
					}
					
					// Change game parameters based on settings.
					GameParameters.guiStyle = guiStyle;
					GameParameters.gameMode = gameMode;
					GameParameters.maxDepth1 = maxDepth1;
					GameParameters.maxDepth2 = maxDepth2;
					GameParameters.player1Color = player1Color;
					GameParameters.player2Color = player2Color;
					
					JOptionPane.showMessageDialog(null,
							"Game settings have been changed.\nThe changes will be applied in the next new game.",
							"Notice", JOptionPane.INFORMATION_MESSAGE);
					dispose();
				}
				
				catch(Exception e) {
					System.err.println("ERROR : " + e.getMessage());
				}
				
			}  // else if.
			
		}  // action performed.
		
	}  // inner class.
	
	
}  // class end.