using UnityEngine;

namespace Interaction.Conditions
{
    public class InteractCountAccumulator : InteractConditionBehaviour
    {
        [SerializeField] private Interaction.InteractCountThresholdSystem targetSystem;
        [SerializeField] private int addAmount = 1;
        [SerializeField] private bool autoFindTargetSystemIfNull = true;

        private bool hadTargetSystemAtEnable = false;

        private void OnEnable()
        {
            hadTargetSystemAtEnable = targetSystem != null;
        }

        public override bool CanInteract(GameObject interactor, out string failReason)
        {
            failReason = null;
            return true;
        }

        public override void OnInteractSucceeded(GameObject interactor)
        {
            if (addAmount <= 0) return;

            if (targetSystem == null)
            {
                if (hadTargetSystemAtEnable) return;
                if (!autoFindTargetSystemIfNull) return;
                targetSystem = FindObjectOfType<Interaction.InteractCountThresholdSystem>(true);
            }

            if (targetSystem == null) return;

            targetSystem.Add(addAmount);
        }
    }
}