package org.leumasjaffe.charsheet.view.skills;

import javax.swing.JPanel;

import org.leumasjaffe.charsheet.model.Ability;
import org.leumasjaffe.charsheet.model.DDCharacter;
import org.leumasjaffe.charsheet.model.observable.IntValue;
import org.leumasjaffe.charsheet.model.skill.DDSkill;
import org.leumasjaffe.charsheet.util.AbilityHelper;
import org.leumasjaffe.format.StringHelper;
import org.leumasjaffe.observer.IndirectObservableListener;
import org.leumasjaffe.observer.ObservableListener;
import org.leumasjaffe.observer.ObserverDispatch;

import lombok.AccessLevel;
import lombok.experimental.FieldDefaults;

import java.awt.GridBagLayout;
import javax.swing.JCheckBox;
import java.awt.GridBagConstraints;
import javax.swing.JLabel;
import java.awt.Insets;
import java.awt.Dimension;
import javax.swing.JTextField;
import java.awt.Color;
import javax.swing.border.MatteBorder;
import javax.swing.SwingConstants;

@FieldDefaults(level=AccessLevel.PRIVATE, makeFinal=true)
public class SkillLine extends JPanel {
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	ObservableListener<JTextField, Ability.Scores> modifierListener;
	ObservableListener<JTextField, IntValue> skillListener;
	IndirectObservableListener<JTextField, DDCharacter> totalListener;

	public SkillLine(final DDCharacter chara, final DDSkill skill) {
		setBorder(new MatteBorder(0, 0, 1, 0, (Color) new Color(0, 0, 0)));
		setPreferredSize(new Dimension(550, 22));
		GridBagLayout gridBagLayout = new GridBagLayout();
		gridBagLayout.columnWidths = new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
		gridBagLayout.rowHeights = new int[]{0, 0};
		gridBagLayout.columnWeights = new double[]{0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, Double.MIN_VALUE};
		gridBagLayout.rowWeights = new double[]{0.0, Double.MIN_VALUE};
		setLayout(gridBagLayout);
		
		JCheckBox checkBoxIsClassSkill = new JCheckBox("");
		checkBoxIsClassSkill.setToolTipText("Class Skill?");
		checkBoxIsClassSkill.setSelected(chara.isClassSkill(skill.getName()));
		checkBoxIsClassSkill.setEnabled(false);
		GridBagConstraints gbc_checkBoxIsClassSkill = new GridBagConstraints();
		gbc_checkBoxIsClassSkill.insets = new Insets(1, 0, 0, 0);
		gbc_checkBoxIsClassSkill.gridx = 0;
		gbc_checkBoxIsClassSkill.gridy = 0;
		add(checkBoxIsClassSkill, gbc_checkBoxIsClassSkill);
		
		JLabel lblName = new JLabel(skill.getName());
		lblName.setMaximumSize(new Dimension(150, 14));
		lblName.setMinimumSize(new Dimension(150, 14));
		lblName.setPreferredSize(new Dimension(150, 14));
		GridBagConstraints gbc_lblName = new GridBagConstraints();
		gbc_lblName.fill = GridBagConstraints.HORIZONTAL;
		gbc_lblName.insets = new Insets(1, 0, 0, 0);
		gbc_lblName.gridx = 1;
		gbc_lblName.gridy = 0;
		add(lblName, gbc_lblName);
		
		JLabel lblAbil = new JLabel(skill.getAbility());
		lblAbil.setMaximumSize(new Dimension(30, 14));
		lblAbil.setMinimumSize(new Dimension(30, 14));
		lblAbil.setPreferredSize(new Dimension(30, 14));
		GridBagConstraints gbc_lblAbil = new GridBagConstraints();
		gbc_lblAbil.insets = new Insets(1, 0, 0, 0);
		gbc_lblAbil.anchor = GridBagConstraints.EAST;
		gbc_lblAbil.gridx = 2;
		gbc_lblAbil.gridy = 0;
		add(lblAbil, gbc_lblAbil);
		
		JTextField total = new JTextField();
		total.setToolTipText("Skill Modifier");
		total.setHorizontalAlignment(SwingConstants.CENTER);
		total.setEditable(false);
		total.setMinimumSize(new Dimension(30, 20));
		total.setMaximumSize(new Dimension(30, 20));
		total.setPreferredSize(new Dimension(30, 20));
		GridBagConstraints gbc_total = new GridBagConstraints();
		gbc_total.insets = new Insets(1, 0, 0, 0);
		gbc_total.fill = GridBagConstraints.HORIZONTAL;
		gbc_total.gridx = 3;
		gbc_total.gridy = 0;
		add(total, gbc_total);
		total.setColumns(10);
		
		JLabel label = new JLabel("=");
		GridBagConstraints gbc_label = new GridBagConstraints();
		gbc_label.anchor = GridBagConstraints.EAST;
		gbc_label.insets = new Insets(1, 0, 0, 1);
		gbc_label.gridx = 4;
		gbc_label.gridy = 0;
		add(label, gbc_label);
		
		JTextField modifier = new JTextField();
		modifier.setToolTipText("Ability Modifier");
		modifier.setHorizontalAlignment(SwingConstants.CENTER);
		modifier.setEditable(false);
		modifier.setMinimumSize(new Dimension(30, 20));
		modifier.setMaximumSize(new Dimension(30, 20));
		modifier.setPreferredSize(new Dimension(30, 20));
		GridBagConstraints gbc_modifier = new GridBagConstraints();
		gbc_modifier.insets = new Insets(1, 0, 0, 0);
		gbc_modifier.fill = GridBagConstraints.HORIZONTAL;
		gbc_modifier.gridx = 5;
		gbc_modifier.gridy = 0;
		add(modifier, gbc_modifier);
		modifier.setColumns(10);
		
		JLabel label_1 = new JLabel("+");
		GridBagConstraints gbc_label_1 = new GridBagConstraints();
		gbc_label_1.anchor = GridBagConstraints.EAST;
		gbc_label_1.insets = new Insets(1, 0, 0, 1);
		gbc_label_1.gridx = 6;
		gbc_label_1.gridy = 0;
		add(label_1, gbc_label_1);
		
		JTextField ranks = new JTextField(StringHelper.toString(skill.getRanks()));
		ranks.setToolTipText("Ranks");
		ranks.setHorizontalAlignment(SwingConstants.CENTER);
		ranks.setEditable(false);
		ranks.setMinimumSize(new Dimension(30, 20));
		ranks.setMaximumSize(new Dimension(30, 20));
		ranks.setPreferredSize(new Dimension(30, 20));
		GridBagConstraints gbc_ranks = new GridBagConstraints();
		gbc_ranks.insets = new Insets(1, 0, 0, 0);
		gbc_ranks.fill = GridBagConstraints.HORIZONTAL;
		gbc_ranks.gridx = 7;
		gbc_ranks.gridy = 0;
		add(ranks, gbc_ranks);
		ranks.setColumns(10);
		
		JLabel label_2 = new JLabel("+");
		GridBagConstraints gbc_label_2 = new GridBagConstraints();
		gbc_label_2.insets = new Insets(1, 0, 0, 1);
		gbc_label_2.anchor = GridBagConstraints.EAST;
		gbc_label_2.gridx = 8;
		gbc_label_2.gridy = 0;
		add(label_2, gbc_label_2);
		
		JTextField misc = new JTextField();
		misc.setToolTipText("Miscellaneous Modifier");
		misc.setHorizontalAlignment(SwingConstants.CENTER);
		misc.setMinimumSize(new Dimension(30, 20));
		misc.setMaximumSize(new Dimension(30, 20));
		misc.setPreferredSize(new Dimension(30, 20));
		GridBagConstraints gbc_misc = new GridBagConstraints();
		gbc_misc.insets = new Insets(1, 0, 0, 0);
		gbc_misc.fill = GridBagConstraints.HORIZONTAL;
		gbc_misc.gridx = 9;
		gbc_misc.gridy = 0;
		add(misc, gbc_misc);
		misc.setColumns(10);
		
		
		if ( skill.getAbility().isEmpty() ) {
			totalListener = new IndirectObservableListener<>(total,
					(c, v) -> {
						c.setText(StringHelper.toString(skill.getRanks()));
					});
			modifierListener = null;
			totalListener.setObserved(chara, skill.getRanks());
		} else {
			totalListener = new IndirectObservableListener<>(total,
					(c, v) -> {
						final float skillRanks = skill.getRanks().value();
						final int mod = AbilityHelper.get(chara, skill).modifier();
						c.setText(StringHelper.toString(skillRanks + mod));
					});
			modifierListener = new ObservableListener<>(modifier, 
					( c, v ) -> c.setText(StringHelper.toString(v.modifier())));
			
			final Ability.Scores abilScore = AbilityHelper.get(chara, skill);
			totalListener.setObserved(chara, skill.getRanks(), abilScore);
			modifierListener.setObserved(abilScore);
		}
		skillListener = new ObservableListener<>(ranks, (c, v) -> {
			c.setText(StringHelper.toString(v));
		});
		skillListener.setObserved(skill.getRanks());
	}
	
	@Override
	public void removeNotify() {
		super.removeNotify();
		ObserverDispatch.unsubscribeAll(totalListener);
		ObserverDispatch.unsubscribeAll(modifierListener);
		ObserverDispatch.unsubscribeAll(skillListener);
	}
}