/*
 * THIS SOFTWARE WRITTEN BY A KEYBOARD-WIELDING MONKEY BOI
 * No rights reserved. Use, redistribute, and modify at your own discretion,
 * and in accordance with Yagex and RuneLite guidelines.
 * However, aforementioned monkey would prefer if you don't sell this plugin for profit.
 * Good luck on your raids!
 */

package net.runelite.client.plugins.gauntlet;

import com.google.inject.Provides;
import lombok.AccessLevel;
import lombok.Getter;
import net.runelite.api.Actor;
import net.runelite.api.Client;
import net.runelite.api.GameObject;
import net.runelite.api.GameState;
import net.runelite.api.HeadIcon;
import net.runelite.api.NPC;
import net.runelite.api.NPCComposition;
import net.runelite.api.Player;
import net.runelite.api.Projectile;
import net.runelite.api.Skill;
import net.runelite.api.SoundEffectID;
import net.runelite.api.Tile;
import net.runelite.api.events.AnimationChanged;
//import net.runelite.api.events.ConfigChanged;
import net.runelite.api.events.GameObjectChanged;
import net.runelite.api.events.GameObjectDespawned;
import net.runelite.api.events.GameObjectSpawned;
import net.runelite.api.events.GameStateChanged;
import net.runelite.api.events.GameTick;
import net.runelite.api.events.NpcDespawned;
import net.runelite.api.events.NpcSpawned;
import net.runelite.api.events.VarbitChanged;
import net.runelite.client.callback.ClientThread;
import net.runelite.client.config.ConfigManager;
import net.runelite.client.eventbus.Subscribe;
import net.runelite.client.game.SkillIconManager;
import net.runelite.client.plugins.Plugin;
import net.runelite.client.plugins.PluginDescriptor;
import net.runelite.client.ui.overlay.OverlayManager;
import net.runelite.client.util.ImageUtil;

import javax.inject.Inject;
import java.awt.image.BufferedImage;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

@PluginDescriptor(
        name = "Gauntlet",
        description = "All-in-one plugin for the Gauntlet.",
        tags = {"Gauntlet"},
        enabledByDefault = false
)

public class GauntletPlugin extends Plugin {

    public BufferedImage imageCrystalDeposit;
    public BufferedImage imagePhrenRoots;
    public BufferedImage imageFishingSpot;
    public BufferedImage imageGrymRoot;
    public BufferedImage imageLinumTirinum;

    public BufferedImage imageAttackRange;
    public BufferedImage imageAttackMage;
    public BufferedImage imageAttackPrayer;

    public final Map<GameObject, Tile> resources = new HashMap<>();

    public Set<Projectile> projectiles = new HashSet<>();

    public int bossCounter = 0; // Attacks until the boss changes attack styles.
    public BossAttackPhase currentPhase = BossAttackPhase.UNKNOWN;

    public int playerCounter = 6; // Attacks until the boss changes prayer.

    public enum BossAttackPhase {
        MAGIC, RANGE, UNKNOWN;
    }

    public enum BossAttack {
        MAGIC, RANGE, PRAYER, LIGHTNING;
    }

    @Inject
    private Client client;

    @Inject
    private ClientThread clientThread;

    @Getter(AccessLevel.PUBLIC)
    @Inject
    private OverlayManager overlayManager;

    @Inject
    private GauntletOverlay overlay;

    @Inject
    private SkillIconManager iconManager;

    @Inject
    private GauntletConfig config;

    @Provides
    GauntletConfig getConfig(ConfigManager configManager) {
        return configManager.getConfig(GauntletConfig.class);
    }

    @Inject
    private GauntletTimer timer;

    private boolean timerVisible = true;

    public boolean tornadoesActive = false;
    public int tornadoTicks = GauntletUtils.TORNADO_TICKS;

    public boolean completeStartup = false;

    @Override
    protected void startUp() {
        loadImages(config.iconSize());

        resetCounters();

        timerVisible = config.displayTimerWidget();
        timer.resetStates();

        if (timerVisible) {
            overlayManager.add(timer);
        }

        overlayManager.add(overlay);

        // This section checks if the user is trying to start the timer while mid-raid.
        // Varbits can only be checked on the client thread. Perform init check if nessessary.
        if (client.getGameState() != GameState.STARTING && client.getGameState() != GameState.UNKNOWN) {
            completeStartup = false;
            clientThread.invoke(new Runnable() {
                public void run() {
                    timer.initStates();
                    completeStartup = true;
                }
            });
        } else
            completeStartup = true;
    }

    @Override
    protected void shutDown() {
        resetCounters();
        timer.resetStates();

        if (timerVisible) {
            overlayManager.remove(timer);
            timerVisible = false;
        }

        overlayManager.remove(overlay);
    }

    /**
     * Called when images need to be resized.
     */
    private void loadImages(int imageSize) {
        imageCrystalDeposit = ImageUtil.resizeImage(iconManager.getSkillImage(Skill.MINING, true), imageSize, imageSize);
        imagePhrenRoots = ImageUtil.resizeImage(iconManager.getSkillImage(Skill.WOODCUTTING, true), imageSize, imageSize);
        imageFishingSpot = ImageUtil.resizeImage(iconManager.getSkillImage(Skill.FISHING, true), imageSize, imageSize);
        imageGrymRoot = ImageUtil.resizeImage(iconManager.getSkillImage(Skill.HERBLORE, true), imageSize, imageSize);
        imageLinumTirinum = ImageUtil.resizeImage(iconManager.getSkillImage(Skill.FARMING, true), imageSize, imageSize);

        imageAttackMage = ImageUtil.resizeImage(iconManager.getSkillImage(Skill.MAGIC, true), imageSize, imageSize);
        imageAttackRange = ImageUtil.resizeImage(iconManager.getSkillImage(Skill.RANGED, true), imageSize, imageSize);
        imageAttackPrayer = ImageUtil.resizeImage(iconManager.getSkillImage(Skill.PRAYER, true), imageSize, imageSize);
    }

    /*@Subscribe
    public void onConfigChanged(ConfigChanged event) {
        if (event.getGroup() == null || event.getKey() == null || !event.getGroup().equals("Gauntlet"))
            return;

        if (event.getKey().equals("displayTimerWidget")) {
            if (config.displayTimerWidget() && !timerVisible) {
                overlayManager.add(timer);
                timerVisible = true;
            } else if (!config.displayTimerWidget() && timerVisible) {
                overlayManager.remove(timer);
                timerVisible = false;
            }
        } else if (event.getKey().equals("iconSize")) {
            loadImages(config.iconSize());
        }
    }*/

    @Subscribe
    public void onVarbitChanged(VarbitChanged event) {
        // This handles the timer based on varp states.
        if (this.completeStartup)
            timer.checkStates(true);
    }

    @Subscribe
    public void onNpcSpawned(NpcSpawned event) {
        NPC npc = event.getNpc();
        if (GauntletUtils.isBoss(npc))
            resetCounters();
    }

    @Subscribe
    public void onNpcDespawned(NpcDespawned event) {
        NPC npc = event.getNpc();
        if (GauntletUtils.isBoss(npc))
            resetCounters();
    }

    /**
     * Reset all boss and player related counter resources.
     */
    private void resetCounters() {
        bossCounter = 0;
        currentPhase = BossAttackPhase.UNKNOWN;

        playerCounter = 6;

        tornadoesActive = false;
        tornadoTicks = GauntletUtils.TORNADO_TICKS;

        projectiles.clear();
    }

    /**
     * Method is called when an attack is performed by the boss.
     *
     * @param style BossAttack ; the attack performed by the boss
     */
    public void doAttack(BossAttack style) {
        // Prayer attacks are magic related. We only care if it's prayer to play the unique sound.
        // This section will change all PRAYER attacks to MAGIC.
        if (style == BossAttack.PRAYER) {
            if (config.uniquePrayerAudio()) {
                client.playSoundEffect(SoundEffectID.MAGIC_SPLASH_BOING);
            }

            style = BossAttack.MAGIC;
        }

        // This section will decrement the boss attack counter by 1.
        if (style == BossAttack.LIGHTNING) {
            bossCounter--;
        } else if (style == BossAttack.RANGE) {
            if (currentPhase != BossAttackPhase.RANGE) {
                currentPhase = BossAttackPhase.RANGE;
                bossCounter = 3;
            } else {
                bossCounter--;
            }
        } else if (style == BossAttack.MAGIC) {
            if (currentPhase != BossAttackPhase.MAGIC) {
                currentPhase = BossAttackPhase.MAGIC;
                bossCounter = 3;
            } else {
                bossCounter--;
            }
        }

        // This section will reset the boss attack counter if necessary.
        if (bossCounter <= 0) {
            BossAttackPhase nextPhase;

            switch (currentPhase) {
                case MAGIC:
                    bossCounter = 4;
                    nextPhase = BossAttackPhase.RANGE;
                    break;
                case RANGE:
                    bossCounter = 4;
                    nextPhase = BossAttackPhase.MAGIC;
                    break;
                default:
                    bossCounter = 0;
                    nextPhase = BossAttackPhase.UNKNOWN;
                    break;
            }

            currentPhase = nextPhase;
        }
    }

    @Subscribe
    public void onAnimationChanged(AnimationChanged event) {
        Actor actor = event.getActor();

        // This section handles the player counter.
        if (actor instanceof Player && GauntletUtils.inBoss(client)) {
            Player p = (Player) actor;
            if (p.getName().equals(client.getLocalPlayer().getName())) {
                int id = p.getAnimation();
                if (id != -1) {
                    // Detect the overhead prayer that the boss is using and determine the list of animations that the boss is currently immune to.
                    int[] wrong_style = new int[]{};

                    for (NPC npc : this.client.getNpcs()) {
                        if (GauntletUtils.isBoss(npc)) {
                            NPCComposition comp = npc.getComposition();
                            if (comp != null) {
                                HeadIcon prayer = comp.getOverheadIcon();
                                if (prayer != null) {
                                    switch (prayer) {
                                        case MELEE:
                                            wrong_style = GauntletUtils.MELEE_ANIMATIONS;
                                            break;
                                        case RANGED:
                                            wrong_style = GauntletUtils.RANGE_ANIMATIONS;
                                            break;
                                        case MAGIC:
                                            wrong_style = GauntletUtils.MAGE_ANIMATIONS;
                                            break;
                                        default:
                                            wrong_style = new int[]{};
                                            break;
                                    }

                                    break;
                                }
                            }
                        }
                    }

                    // Check that the player performed an attack animation that the boss isn't immune to.
                    if (GauntletUtils.arrayContainsInteger(GauntletUtils.PLAYER_ANIMATIONS, id) && !GauntletUtils.arrayContainsInteger(wrong_style, id)) {
                        // Attack is valid. Decrement the player attack counter and reset it if necessary.
                        playerCounter--;
                        if (playerCounter <= 0) {
                            playerCounter = 6;
                        }
                    }
                }
            }
        }

        // This section handles the boss attack counter if they perform a lightning attack.
        if (actor instanceof NPC) {
            NPC npc = (NPC) actor;
            if (GauntletUtils.isBoss(npc)) {
                int id = npc.getAnimation();
                if (id == GauntletUtils.BOSS_ANIMATION_LIGHTNING) {
                    this.doAttack(BossAttack.LIGHTNING);
                }
            }
        }
    }

    @Subscribe
    public void onGameTick(GameTick event) {
        // This handles the timer based on player health.
        if (this.completeStartup)
            timer.checkStates(false);

        // This section handles the boss attack counter if they perform a projectile attack.
        Set<Projectile> newProjectiles = new HashSet<>();

        for (Projectile projectile : client.getProjectiles()) {
            newProjectiles.add(projectile);

            if (!projectiles.contains(projectile)) {
                int id = projectile.getId();
                if (GauntletUtils.arrayContainsInteger(GauntletUtils.PROJECTILE_MAGIC, id)) {
                    this.doAttack(BossAttack.MAGIC);
                } else if (GauntletUtils.arrayContainsInteger(GauntletUtils.PROJECTILE_PRAYER, id)) {
                    this.doAttack(BossAttack.PRAYER);
                } else if (GauntletUtils.arrayContainsInteger(GauntletUtils.PROJECTILE_RANGE, id)) {
                    this.doAttack(BossAttack.RANGE);
                }
            }
        }

        projectiles.clear();
        projectiles = newProjectiles;

        // This section handles lightning decay.
        if (!this.tornadoesActive) {
            for (NPC npc : client.getNpcs()) {
                if (GauntletUtils.isTornado(npc)) {
                    tornadoesActive = true;
                    tornadoTicks = GauntletUtils.TORNADO_TICKS;
                    break;
                }
            }
        } else {
            tornadoTicks--;
            if (tornadoTicks <= 0) {
                tornadoesActive = false;
                tornadoTicks = GauntletUtils.TORNADO_TICKS;
            }
        }
    }

    @Subscribe
    public void onGameObjectSpawned(GameObjectSpawned event) {
        onGameObject(event.getTile(), null, event.getGameObject());
    }

    @Subscribe
    public void onGameObjectChanged(GameObjectChanged event) {
        onGameObject(event.getTile(), event.getPrevious(), event.getGameObject());
    }

    @Subscribe
    public void onGameObjectDespawned(GameObjectDespawned event) {
        onGameObject(event.getTile(), event.getGameObject(), null);
    }

    @Subscribe
    public void onGameStateChanged(GameStateChanged event) {
        if (event.getGameState() == GameState.LOADING) {
            resources.clear();
        }
    }

    /**
     * Called when a GameObject spawns, changes, or despawns.
     *
     * @param tile      Tile
     * @param oldObject TileObject
     * @param newObject TileObject
     */
    private void onGameObject(Tile tile, GameObject oldObject, GameObject newObject) {
        resources.remove(oldObject);

        if (newObject == null) {
            return;
        }

        int id = newObject.getId();

        if (GauntletUtils.arrayContainsInteger(GauntletUtils.RESOURCE_IDS, id)) {
            resources.put(newObject, tile);
        }
    }
}