/*
 * Copyright (c) 2019, Adam <Adam@sigterm.info>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package net.runelite.client.plugins.mining;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.time.Instant;
import java.util.List;
import javax.inject.Inject;
import net.runelite.api.Client;
import net.runelite.api.Perspective;
import net.runelite.api.Point;
import net.runelite.api.coords.LocalPoint;
import net.runelite.client.ui.overlay.Overlay;
import net.runelite.client.ui.overlay.OverlayLayer;
import net.runelite.client.ui.overlay.OverlayPosition;
import net.runelite.client.ui.overlay.components.ProgressPieComponent;

class MiningRocksOverlay extends Overlay
{
	static final int DAEYALT_MAX_RESPAWN_TIME = 110; // Game ticks
	private static final int DAEYALT_MIN_RESPAWN_TIME = 91; // Game ticks
	private static final float DAEYALT_RANDOM_PERCENT_THRESHOLD = (float) DAEYALT_MIN_RESPAWN_TIME / DAEYALT_MAX_RESPAWN_TIME;

	static final int LOVAKITE_ORE_MAX_RESPAWN_TIME = 65; // Game ticks
	private static final int LOVAKITE_ORE_MIN_RESPAWN_TIME = 50; // Game ticks
	private static final float LOVAKITE_ORE_RANDOM_PERCENT_THRESHOLD = (float) LOVAKITE_ORE_MIN_RESPAWN_TIME / LOVAKITE_ORE_MAX_RESPAWN_TIME;

	private static final Color DARK_GREEN = new Color(0, 100, 0);
	private static final int MOTHERLODE_UPPER_FLOOR_HEIGHT = -500;

	private final Client client;
	private final MiningPlugin plugin;

	@Inject
	private MiningRocksOverlay(Client client, MiningPlugin plugin)
	{
		setPosition(OverlayPosition.DYNAMIC);
		setLayer(OverlayLayer.ABOVE_SCENE);
		this.plugin = plugin;
		this.client = client;
	}

	@Override
	public Dimension render(Graphics2D graphics)
	{
		List<RockRespawn> respawns = plugin.getRespawns();
		if (respawns.isEmpty())
		{
			return null;
		}

		Instant now = Instant.now();
		for (RockRespawn rockRespawn : respawns)
		{
			LocalPoint loc = LocalPoint.fromWorld(client, rockRespawn.getWorldPoint());
			if (loc == null)
			{
				continue;
			}

			float percent = (now.toEpochMilli() - rockRespawn.getStartTime().toEpochMilli()) / (float) rockRespawn.getRespawnTime();
			Point point = Perspective.localToCanvas(client, loc, client.getPlane(), rockRespawn.getZOffset());
			if (point == null || percent > 1.0f)
			{
				continue;
			}

			Rock rock = rockRespawn.getRock();

			// Only draw timer for veins on the same level in motherlode mine
			LocalPoint localLocation = client.getLocalPlayer().getLocalLocation();
			if (rock == Rock.ORE_VEIN && isUpstairsMotherlode(localLocation) != isUpstairsMotherlode(loc))
			{
				continue;
			}

			Color pieFillColor = Color.YELLOW;
			Color pieBorderColor = Color.ORANGE;

			// Recolour pie during the portion of the timer where they may respawn
			if ((rock == Rock.DAEYALT_ESSENCE && percent > DAEYALT_RANDOM_PERCENT_THRESHOLD)
				|| (rock == Rock.LOVAKITE && percent > LOVAKITE_ORE_RANDOM_PERCENT_THRESHOLD))
			{
				pieFillColor = Color.GREEN;
				pieBorderColor = DARK_GREEN;
			}

			ProgressPieComponent ppc = new ProgressPieComponent();
			ppc.setBorderColor(pieBorderColor);
			ppc.setFill(pieFillColor);
			ppc.setPosition(point);
			ppc.setProgress(percent);
			ppc.render(graphics);
		}
		return null;
	}

	/**
	 * Checks if the given point is "upstairs" in the mlm.
	 * The upper floor is actually on z=0.
	 *
	 * This method assumes that the given point is already in the mlm
	 * and is not meaningful when outside the mlm.
	 *
	 * @param localPoint the LocalPoint to be tested
	 * @return true if localPoint is at same height as mlm upper floor
	 */
	private boolean isUpstairsMotherlode(LocalPoint localPoint)
	{
		return Perspective.getTileHeight(client, localPoint, 0) < MOTHERLODE_UPPER_FLOOR_HEIGHT;
	}
}
