using System;
using UnityEngine;

namespace OTGIntegrated.Combat
{
    public class Damageable : MonoBehaviour
    {
        public string displayName = "Target";
        [Min(1f)] public float maxHealth = 50f;
        [SerializeField] protected float currentHealth = 50f;
        public Transform floatingDamageAnchor;

        public event Action<float> OnDamageTaken;
        public event Action OnDeath;

        public float CurrentHealth => currentHealth;
        public float MaxHealth => maxHealth;
        public bool IsAlive => currentHealth > 0f;

        protected virtual void Awake()
        {
            maxHealth = Mathf.Max(1f, maxHealth);
            if (currentHealth <= 0f)
            {
                currentHealth = maxHealth;
            }

            currentHealth = Mathf.Clamp(currentHealth, 0f, maxHealth);
        }

        public virtual void TakeDamage(float amount, GameObject source = null)
        {
            if (!IsAlive || amount <= 0f)
            {
                return;
            }

            currentHealth = Mathf.Clamp(currentHealth - amount, 0f, maxHealth);
            OnDamageTaken?.Invoke(amount);

            Vector3 anchor = floatingDamageAnchor != null ? floatingDamageAnchor.position : transform.position + Vector3.up * 1.6f;
            FloatingDamage.Spawn(anchor, Mathf.RoundToInt(amount), new Color(1f, 0.46f, 0.24f, 1f));

            if (currentHealth <= 0f)
            {
                HandleDeath(source);
            }
        }

        public virtual void Heal(float amount)
        {
            if (amount <= 0f || !IsAlive)
            {
                return;
            }

            currentHealth = Mathf.Clamp(currentHealth + amount, 0f, maxHealth);
        }

        protected virtual void HandleDeath(GameObject source)
        {
            OnDeath?.Invoke();
        }
    }
}