using UnityEngine;

using Colosseum.Player;

namespace Colosseum.Skills.Effects
{
    /// <summary>
    /// 넉백 효과
    /// </summary>
    [CreateAssetMenu(fileName = "KnockbackEffect", menuName = "Colosseum/Skills/Effects/Knockback")]
    public class KnockbackEffect : SkillEffect
    {
        [Header("Knockback Settings")]
        [Min(0f)] [SerializeField] private float force = 5f;
        [SerializeField] private float upwardForce = 2f;
        [Min(0.05f)] [SerializeField] private float duration = 0.2f;

        [Header("Hit Animation")]
        [Tooltip("넉백 적용 시 경직 애니메이션 재생 여부")]
        [SerializeField] private bool playHitAnimation = true;

        [Tooltip("경직 애니메이션 재생 속도 배율")]
        [Min(0.01f)] [SerializeField] private float hitAnimationSpeedMultiplier = 1f;

        protected override void ApplyEffect(GameObject caster, GameObject target)
        {
            if (target == null || caster == null) return;

            Vector3 direction = target.transform.position - caster.transform.position;
            direction.y = 0f;
            if (direction.sqrMagnitude <= 0.0001f)
                direction = caster.transform.forward;
            else
                direction.Normalize();

            Vector3 knockbackVelocity = direction * force + Vector3.up * upwardForce;

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

            if (hitReactionController != null)
            {
                hitReactionController.ApplyKnockback(knockbackVelocity, duration, playHitAnimation, hitAnimationSpeedMultiplier);
                return;
            }

            PlayerMovement playerMovement = target.GetComponent<PlayerMovement>();
            if (playerMovement == null)
                playerMovement = target.GetComponentInParent<PlayerMovement>();

            if (playerMovement != null)
            {
                playerMovement.ApplyForcedMovement(knockbackVelocity, duration);
            }
        }
    }
}