using System.Collections.Generic;
using OTG.Lab06.Abilities;
using OTG.Lab06.Core;
using UnityEngine;

namespace OTG.Lab06.Effects
{
    public sealed class IceNovaEffect : AbilityEffect
    {
        [SerializeField] private float visualLifetime = 1.2f;
        [SerializeField] private LayerMask hitMask = ~0;

        public override void Activate(AbilityCastContext context)
        {
            transform.position = context.Caster.position + Vector3.up * 0.05f;

            float radius = Mathf.Max(0.1f, context.Ability.castRange);
            Collider[] hits = Physics.OverlapSphere(context.Caster.position, radius, hitMask, QueryTriggerInteraction.Ignore);
            var damaged = new HashSet<IDamageable>();

            foreach (Collider hit in hits)
            {
                IDamageable damageable = hit.GetComponentInParent<IDamageable>();
                if (damageable != null && damageable.IsAlive && damageable.Transform != context.Caster && damaged.Add(damageable))
                {
                    damageable.TakeDamage(context.Ability.damage);
                }
            }

            Destroy(gameObject, visualLifetime);
        }
    }
}