using System;

using Colosseum.Combat;
using Colosseum.Player;

using Unity.Behavior;
using Unity.Properties;
using UnityEngine;

using Condition = Unity.Behavior.Condition;

namespace Colosseum.AI.BehaviorActions.Conditions
{
    /// <summary>
    /// 다운된 적대 대상이 지정 반경 이내에 존재하는지 확인합니다.
    /// 징벌(Punish) 패턴의 전제 조건으로 사용됩니다.
    /// </summary>
    [Serializable, GeneratePropertyBag]
    [Condition(name: "Downed Target In Range", story: "다운된 대상이 [{SearchRadius}]m 이내에 있는가?", id: "d4e5f6a7-3333-4444-555566667777")]
    [NodeDescription(
        name: "Downed Target In Range",
        story: "Downed target within [{SearchRadius}]m",
        category: "Condition/Pattern")]
    public partial class IsDownedTargetInRangeCondition : Condition
    {
        [SerializeReference]
        [Tooltip("다운된 대상을 탐색할 최대 반경")]
        public BlackboardVariable<float> SearchRadius = new BlackboardVariable<float>(6f);

        public override bool IsTrue()
        {
            float searchRadius = Mathf.Max(0f, SearchRadius.Value);
            HitReactionController[] controllers = UnityEngine.Object.FindObjectsByType<HitReactionController>(FindObjectsSortMode.None);

            for (int i = 0; i < controllers.Length; i++)
            {
                HitReactionController controller = controllers[i];
                if (controller == null || !controller.IsDowned)
                    continue;

                GameObject candidate = controller.gameObject;
                if (candidate == null || !candidate.activeInHierarchy)
                    continue;

                if (candidate == GameObject)
                    continue;

                if (Team.IsSameTeam(GameObject, candidate))
                    continue;

                IDamageable damageable = candidate.GetComponent<IDamageable>();
                if (damageable != null && damageable.IsDead)
                    continue;

                float distance = Vector3.Distance(GameObject.transform.position, candidate.transform.position);
                if (distance <= searchRadius)
                    return true;
            }

            return false;
        }
    }
}