using System;

using Colosseum.Abnormalities;
using Colosseum.AI;
using Colosseum.Combat;
using Colosseum.Enemy;
using Colosseum.Player;

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

using Action = Unity.Behavior.Action;

/// <summary>
/// 충전 차단에 실패하여 패턴이 완료되었을 때, 전체 플레이어에게 범위 효과를 적용합니다.
/// 기존 BossCombatBehaviorContext.ExecuteSignatureFailure()의 BT 노드 이관 버전입니다.
/// </summary>
[Serializable, GeneratePropertyBag]
[NodeDescription(
    name: "Signature Failure Effects",
    story: "패턴 완료 범위 효과 적용",
    category: "Action",
    id: "c3d4e5f6-1111-2222-3333-777788889999")]
public partial class SignatureFailureEffectsAction : Action
{
    private BossCombatBehaviorContext combatBehaviorContext;

    protected override Status OnStart()
    {
        combatBehaviorContext = GameObject.GetComponent<BossCombatBehaviorContext>();
        if (combatBehaviorContext == null)
        {
            Debug.LogWarning("[SignatureFailureEffects] BossCombatBehaviorContext를 찾을 수 없습니다.");
            return Status.Failure;
        }

        ApplyFailureEffects();
        return Status.Success;
    }

    private void ApplyFailureEffects()
    {
        float failureDamage = combatBehaviorContext.SignatureFailureDamage;
        AbnormalityData failureAbnormality = combatBehaviorContext.SignatureFailureAbnormality;
        float knockbackRadius = combatBehaviorContext.SignatureFailureKnockbackRadius;
        float downRadius = combatBehaviorContext.SignatureFailureDownRadius;
        float knockbackSpeed = combatBehaviorContext.SignatureFailureKnockbackSpeed;
        float knockbackDuration = combatBehaviorContext.SignatureFailureKnockbackDuration;
        float downDuration = combatBehaviorContext.SignatureFailureDownDuration;

        PlayerNetworkController[] players = UnityEngine.Object.FindObjectsByType<PlayerNetworkController>(FindObjectsSortMode.None);
        for (int i = 0; i < players.Length; i++)
        {
            PlayerNetworkController player = players[i];
            if (player == null || player.IsDead || !player.gameObject.activeInHierarchy)
                continue;

            GameObject target = player.gameObject;
            if (!combatBehaviorContext.IsValidHostileTarget(target))
                continue;

            player.TakeDamage(failureDamage, GameObject);

            if (failureAbnormality != null)
            {
                AbnormalityManager targetAbnormalityManager = target.GetComponent<AbnormalityManager>();
                targetAbnormalityManager?.ApplyAbnormality(failureAbnormality, GameObject);
            }

            HitReactionController hitReactionController = target.GetComponent<HitReactionController>();
            if (hitReactionController == null)
                continue;

            float distance = Vector3.Distance(GameObject.transform.position, target.transform.position);
            if (distance <= downRadius)
            {
                hitReactionController.ApplyDown(downDuration);
                continue;
            }

            if (distance > knockbackRadius)
                continue;

            Vector3 knockbackDirection = target.transform.position - GameObject.transform.position;
            knockbackDirection.y = 0f;
            if (knockbackDirection.sqrMagnitude < 0.0001f)
            {
                knockbackDirection = GameObject.transform.forward;
            }

            hitReactionController.ApplyKnockback(knockbackDirection.normalized * knockbackSpeed, knockbackDuration);
        }

        CombatBalanceTracker.RecordBossEvent("집행 개시 실패");
    }
}