using UnityEngine;
using UnityEngine.Events;

namespace GameDev.CoreSystems
{
    public class Damageable : MonoBehaviour, IDamageable
    {
        [Header("RuntimeSet")]
        [SerializeField] private SoDamageableRuntimeSet _activeDamageableRuntimeSet;

        [field: Header("Health")]
        [field: SerializeField] public int CurrentHealth { get; private set; }
        [field: SerializeField] public int MaxHealth { get; private set; }

        [field: Header("Modifiers")]
        [field: SerializeField] public bool IsInvulnerable { get; private set; }

        public UnityEvent DeathEvent;

        private void OnEnable()
        {
            _activeDamageableRuntimeSet.Add(this);
        }

        private void OnDisable()
        {
            _activeDamageableRuntimeSet.Remove(this);
        }

        #region Methods

        public void ModifyHealth(int healthChange)
        {
            if (IsInvulnerable) return;

            CurrentHealth += healthChange;

            if (CurrentHealth >= 0) return;

            print($"{transform.parent.parent.name} died");
            DeathEvent.Invoke();
        }

        #endregion

        #region Setters

        public void SetCurrentHealth(int newHealth) => CurrentHealth = newHealth;

        public void SetMaxHealth(int newHealth) => MaxHealth = newHealth;

        public void SetInvulnerable(bool newState) => IsInvulnerable = newState;

        #endregion

        #region Getters

        public int GetCurrentHealth() => CurrentHealth;

        public int GetMaxHealth() => MaxHealth;

        public float GetHealthFactor() => (float)CurrentHealth / (float)MaxHealth;

        #endregion
    }
}