// This file is part of MicropolisJ.
// Copyright (C) 2013 Jason Long
// Portions Copyright (C) 1989-2007 Electronic Arts Inc.
//
// MicropolisJ is free software; you can redistribute it and/or modify
// it under the terms of the GNU GPLv3, with additional terms.
// See the README file, included in this distribution, for details.

package micropolisj.gui;

import java.awt.*;
import java.awt.event.*;
import java.text.*;
import java.util.*;
import javax.swing.*;

import micropolisj.engine.*;
import static micropolisj.gui.MainWindow.formatFunds;

public class EvaluationPane extends JPanel
	implements Micropolis.Listener
{
	Micropolis engine;

	JLabel yesLbl;
	JLabel noLbl;
	JLabel [] voterProblemLbl;
	JLabel [] voterCountLbl;
	JLabel popLbl;
	JLabel deltaLbl;
	JLabel assessLbl;
	JLabel cityClassLbl;
	JLabel gameLevelLbl;
	JLabel scoreLbl;
	JLabel scoreDeltaLbl;

	static ResourceBundle cstrings = ResourceBundle.getBundle("micropolisj.CityStrings");
	static ResourceBundle gstrings = MainWindow.strings;

	public EvaluationPane(Micropolis _engine)
	{
		super(new BorderLayout());

		JButton dismissBtn = new JButton(gstrings.getString("dismiss-evaluation"));
		dismissBtn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent evt) {
				onDismissClicked();
			}});
		add(dismissBtn, BorderLayout.SOUTH);

		Box b1 = new Box(BoxLayout.X_AXIS);
		add(b1, BorderLayout.CENTER);

		b1.add(makePublicOpinionPane());
		b1.add(new JSeparator(SwingConstants.VERTICAL));
		b1.add(makeStatisticsPane());

		assert _engine != null;
		setEngine(_engine);
	}

	public void setEngine(Micropolis newEngine)
	{
		if (engine != null) { //old engine
			engine.removeListener(this);
		}
		engine = newEngine;
		if (engine != null) { //new engine
			engine.addListener(this);
			loadEvaluation();
		}
	}

	private void onDismissClicked()
	{
		setVisible(false);
	}

	private JComponent makePublicOpinionPane()
	{
		JPanel me = new JPanel(new GridBagLayout());
		GridBagConstraints c1 = new GridBagConstraints();
		GridBagConstraints c2 = new GridBagConstraints();
		GridBagConstraints c3 = new GridBagConstraints();

		// c1 is for the full-width headers
		c1.gridx = c1.gridy = 0;
		c1.gridwidth = 2;
		c1.gridheight = 1;
		c1.weightx = 1.0;
		c1.fill = GridBagConstraints.NONE;
		c1.anchor = GridBagConstraints.NORTH;

		JLabel headerLbl = new JLabel(gstrings.getString("public-opinion"));
		Font curFont = headerLbl.getFont();
		headerLbl.setFont(
			curFont.deriveFont(curFont.getStyle() | Font.BOLD, (float)(curFont.getSize() * 1.2))
			);
		me.add(headerLbl, c1);

		c1.gridy = 1;
		c1.insets = new Insets(3, 0, 3, 0);
		me.add(new JLabel(gstrings.getString("public-opinion-1")), c1);

		c1.gridy = 4;
		me.add(new JLabel(gstrings.getString("public-opinion-2")), c1);

		c2.gridx = 0;
		c2.gridy = 2;
		c2.gridwidth = c2.gridheight = 1;
		c2.weightx = 1.0;
		c2.anchor = GridBagConstraints.EAST;
		c2.insets = new Insets(0, 0, 0, 4);

		me.add(new JLabel(gstrings.getString("public-opinion-yes")), c2);

		c2.gridy = 3;
		me.add(new JLabel(gstrings.getString("public-opinion-no")), c2);

		c3.gridx = 1;
		c3.gridwidth = c3.gridheight = 1;
		c3.weightx = 1.0;
		c3.anchor = GridBagConstraints.WEST;
		c3.insets = new Insets(0, 4, 0, 0);

		c3.gridy = 2;
		yesLbl = new JLabel();
		me.add(yesLbl, c3);

		c3.gridy = 3;
		noLbl = new JLabel();
		me.add(noLbl, c3);

		c2.gridy = c3.gridy = 5;

		final int NUM_PROBS = 4;
		voterProblemLbl = new JLabel[NUM_PROBS];
		voterCountLbl = new JLabel[NUM_PROBS];
		for (int i = 0; i < NUM_PROBS; i++) {
			voterProblemLbl[i] = new JLabel();
			me.add(voterProblemLbl[i], c2);

			voterCountLbl[i] = new JLabel();
			me.add(voterCountLbl[i], c3);

			c2.gridy = ++c3.gridy;
		}

		// add glue so that everything will align towards the top
		c1.gridy = 999;
		c1.weighty = 1.0;
		me.add(new JLabel(), c1);

		return me;
	}

	private JComponent makeStatisticsPane()
	{
		JPanel me = new JPanel(new GridBagLayout());
		GridBagConstraints c1 = new GridBagConstraints();
		GridBagConstraints c2 = new GridBagConstraints();
		GridBagConstraints c3 = new GridBagConstraints();

		c1.gridx = c1.gridy = 0;
		c1.gridwidth = 2;
		c1.gridheight = 1;
		c1.weightx = 1.0;
		c1.fill = GridBagConstraints.NONE;
		c1.anchor = GridBagConstraints.NORTH;
		c1.insets = new Insets(0,0,3,0);

		JLabel headerLbl = new JLabel(gstrings.getString("statistics-head"));
		Font curFont = headerLbl.getFont();
		headerLbl.setFont(
			curFont.deriveFont(curFont.getStyle() | Font.BOLD, (float)(curFont.getSize() * 1.2))
			);
		me.add(headerLbl, c1);

		c1.gridy = 20;
		c1.insets = new Insets(9, 0, 3, 0);
		c1.fill = GridBagConstraints.VERTICAL;
		JLabel header2Lbl = new JLabel(gstrings.getString("city-score-head"));
		me.add(header2Lbl, c1);

		c2.gridx = 0;
		c2.gridwidth = c2.gridheight = 1;
		c2.weightx = 0.5;
		c2.anchor = GridBagConstraints.EAST;
		c2.insets = new Insets(0, 0, 0, 4);

		c3.gridx = 1;
		c3.gridwidth = c3.gridheight = 1;
		c3.weightx = 0.5;
		c3.anchor = GridBagConstraints.WEST;
		c3.insets = new Insets(0, 4, 0, 0);

		c2.gridy = c3.gridy = 1;
		me.add(new JLabel(gstrings.getString("stats-population")), c2);
		popLbl = new JLabel();
		me.add(popLbl, c3);

		c2.gridy = ++c3.gridy;
		me.add(new JLabel(gstrings.getString("stats-net-migration")), c2);
		deltaLbl = new JLabel();
		me.add(deltaLbl, c3);

		c2.gridy = ++c3.gridy;
		me.add(new JLabel(gstrings.getString("stats-last-year")), c2);

		c2.gridy = ++c3.gridy;
		me.add(new JLabel(gstrings.getString("stats-assessed-value")), c2);
		assessLbl = new JLabel();
		me.add(assessLbl, c3);

		c2.gridy = ++c3.gridy;
		me.add(new JLabel(gstrings.getString("stats-category")), c2);
		cityClassLbl = new JLabel();
		me.add(cityClassLbl, c3);

		c2.gridy = ++c3.gridy;
		me.add(new JLabel(gstrings.getString("stats-game-level")), c2);
		gameLevelLbl = new JLabel();
		me.add(gameLevelLbl, c3);

		c2.gridy = c3.gridy = 21;
		me.add(new JLabel(gstrings.getString("city-score-current")), c2);
		scoreLbl = new JLabel();
		me.add(scoreLbl, c3);

		c2.gridy = ++c3.gridy;
		me.add(new JLabel(gstrings.getString("city-score-change")), c2);
		scoreDeltaLbl = new JLabel();
		me.add(scoreDeltaLbl, c3);

		// add glue so that everything will align towards the top
		c1.gridy = 999;
		c1.weighty = 1.0;
		c1.insets = new Insets(0,0,0,0);
		me.add(new JLabel(), c1);

		return me;
	}

	//implements Micropolis.Listener
	public void cityMessage(MicropolisMessage message, CityLocation loc) {}
	public void citySound(Sound sound, CityLocation loc) {}
	public void censusChanged() {}
	public void demandChanged() {}
	public void fundsChanged() {}
	public void optionsChanged() {}

	//implements Micropolis.Listener
	public void evaluationChanged()
	{
		loadEvaluation();
	}

	private void loadEvaluation()
	{
		NumberFormat pctFmt = NumberFormat.getPercentInstance();
		yesLbl.setText(pctFmt.format(0.01 * engine.evaluation.cityYes));
		noLbl.setText(pctFmt.format(0.01 * engine.evaluation.cityNo));

		for (int i = 0; i < voterProblemLbl.length; i++) {
			CityProblem p = i < engine.evaluation.problemOrder.length ? engine.evaluation.problemOrder[i] : null;
			int numVotes = p != null ? engine.evaluation.problemVotes.get(p) : 0;

			if (numVotes != 0) {
				voterProblemLbl[i].setText(cstrings.getString("problem."+p.name()));
				voterCountLbl[i].setText(pctFmt.format(0.01 * numVotes));
				voterProblemLbl[i].setVisible(true);
				voterCountLbl[i].setVisible(true);
			} else {
				voterProblemLbl[i].setVisible(false);
				voterCountLbl[i].setVisible(false);
			}
		}

		NumberFormat nf = NumberFormat.getInstance();
		popLbl.setText(nf.format(engine.evaluation.cityPop));
		deltaLbl.setText(nf.format(engine.evaluation.deltaCityPop));
		assessLbl.setText(formatFunds(engine.evaluation.cityAssValue));
		cityClassLbl.setText(getCityClassName(engine.evaluation.cityClass));
		gameLevelLbl.setText(getGameLevelName(engine.gameLevel));
		scoreLbl.setText(nf.format(engine.evaluation.cityScore));
		scoreDeltaLbl.setText(nf.format(engine.evaluation.deltaCityScore));
	}

	static String getCityClassName(int cityClass)
	{
		return cstrings.getString("class."+cityClass);
	}

	static String getGameLevelName(int gameLevel)
	{
		return cstrings.getString("level."+gameLevel);
	}
}