package com.mythlane.chainlightning.sceptre;

import com.hypixel.hytale.component.CommandBuffer;
import com.hypixel.hytale.component.ComponentAccessor;
import com.hypixel.hytale.component.Ref;
import com.hypixel.hytale.server.core.asset.type.entityeffect.config.EntityEffect;
import com.hypixel.hytale.server.core.entity.effect.EffectControllerComponent;
import com.hypixel.hytale.server.core.universe.world.storage.EntityStore;
import com.mythlane.chainlightning.chain.ChainHit;

import javax.annotation.Nonnull;
import java.util.List;
import java.util.logging.Logger;

/** Applies a custom EntityEffect to each chain target so the visual replicates via ECS sync. */
public final class HytaleVfxEmitter {

    private static final Logger LOGGER = Logger.getLogger(HytaleVfxEmitter.class.getName());

    private static final String EFFECT_ID = "Chain_Hit_Effect";

    private HytaleVfxEmitter() {}

    /** Resolves the EntityEffect once and adds it to every valid target via EffectControllerComponent. */
    public static void playChainEffects(@Nonnull List<ChainHit> hits,
                                        @Nonnull Ref<EntityStore> playerRef,
                                        @Nonnull CommandBuffer<EntityStore> commandBuffer) {
        if (hits.isEmpty()) return;

        EntityEffect entityEffect = EntityEffect.getAssetMap().getAsset(EFFECT_ID);
        if (entityEffect == null) {
            LOGGER.warning(String.format(
                    "[ChainLightning][Vfx] EntityEffect '%s' not registered -- VFX skipped (damage already applied)",
                    EFFECT_ID));
            return;
        }

        ComponentAccessor<EntityStore> accessor = commandBuffer;
        int applied = 0;
        for (ChainHit hit : hits) {
            Ref<EntityStore> targetRef = HytaleEntityAdapter.from(hit).ref();
            if (!targetRef.isValid()) continue;
            EffectControllerComponent ecc = accessor.getComponent(targetRef, EffectControllerComponent.getComponentType());
            if (ecc != null && ecc.addEffect(targetRef, entityEffect, accessor)) {
                applied++;
            }
        }

        LOGGER.info(String.format(
                "[ChainLightning][Vfx] EntityEffect '%s' applied to %d/%d targets (caster=%s)",
                EFFECT_ID, applied, hits.size(), playerRef));
    }
}