package dev.loki.survivor;

import dev.loki.mdbd;
import dev.loki.player.PlayerState;
import org.bukkit.entity.Player;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;

public class SurvivorMovement {
    private final SurvivorController controller;
    private boolean isSprinting;
    private boolean isExhausted;
    private int exhaustionTicks;
    private int exhaustionCooldownTicks;
    private boolean isCrawling;

    private static final float WALK_SPEED = 0.2f;
    private static final float SPRINT_SPEED = 0.3f;
    private static final float CRAWL_SPEED = 0.06f;
    private static final int EXHAUSTION_DURATION = 60;
    private static final int EXHAUSTION_COOLDOWN = 100;

    public SurvivorMovement(SurvivorController controller) {
        this.controller = controller;
        this.isSprinting = false;
        this.isExhausted = false;
        this.isCrawling = false;
    }

    public void onSprintStart() {
        if (isExhausted || controller.isDowned()) return;
        isSprinting = true;
    }

    public void onSprintEnd() {
        if (!isSprinting) return;
        isSprinting = false;
        if (!isExhausted && !controller.isDowned()) {
            isExhausted = true;
            exhaustionTicks = EXHAUSTION_DURATION;
        }
    }

    public void tick() {
        if (isExhausted) {
            if (exhaustionTicks > 0) {
                exhaustionTicks--;
            } else {
                exhaustionCooldownTicks = EXHAUSTION_COOLDOWN;
                isExhausted = false;
            }
        } else if (exhaustionCooldownTicks > 0) {
            exhaustionCooldownTicks--;
        }

        updateCrawlState();
        applyEffects();
    }

    private void updateCrawlState() {
        Player player = controller.getPlayer();
        if (player == null) return;

        boolean shouldCrawl = controller.isDowned();
        if (shouldCrawl != isCrawling) {
            isCrawling = shouldCrawl;
            if (isCrawling) {
                player.setSneaking(true);
            } else {
                player.setSneaking(false);
            }
        }
    }

    private void applyEffects() {
        Player player = controller.getPlayer();
        if (player == null) return;

        if (isCrawling) {
            player.addPotionEffect(new PotionEffect(PotionEffectType.SLOWNESS, 5, 2, false, false));
        }
    }

    public float getCurrentSpeed() {
        if (controller.isDowned()) {
            return CRAWL_SPEED;
        }
        if (isExhausted) {
            return WALK_SPEED;
        }
        if (isSprinting) {
            return SPRINT_SPEED;
        }
        return WALK_SPEED;
    }

    public void onStateChange(PlayerState newState) {
        if (newState == PlayerState.DOWNED) {
            isSprinting = false;
        }
    }

    public boolean isSprinting() {
        return isSprinting;
    }

    public boolean isExhausted() {
        return isExhausted;
    }

    public boolean canSprint() {
        return !isExhausted && exhaustionCooldownTicks <= 0 && !controller.isDowned();
    }

    public double getExhaustionPercent() {
        if (isExhausted) {
            return (double) exhaustionTicks / EXHAUSTION_DURATION;
        }
        return 0;
    }
}