using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Unit : MonoBehaviour
{
    public UnitPosition position;
    public UnitHealth health;
    public UnitStats stats;
    private List<GenericEffect> activeEffects;

    void Awake()
    {
        position = GetComponent<UnitPosition>();
        health = GetComponent<UnitHealth>();
        stats = GetComponent<UnitStats>();
    }

    public void Heal(int amount)
    {
        activeEffects.ForEach(delegate (GenericEffect effect) { effect.BeforeHeal(this, amount); });
        if (health != null)
        {
            health.Heal(amount);
        }
        activeEffects.ForEach(delegate (GenericEffect effect) { effect.AfterHeal(this, amount); });
    }

    public void Damage(int amount)
    {
        activeEffects.ForEach(delegate (GenericEffect effect) { effect.BeforeDamage(this, amount); });
        if (health != null)
        {
            health.Damage(amount);
            if (health.currentHealth == 0)
            {
                Kill();
            }
        }
        activeEffects.ForEach(delegate (GenericEffect effect) { effect.AfterDamage(this, amount); });
    }

    public void Kill()
    {
        bool deathPrevented = activeEffects.TrueForAll(delegate (GenericEffect effect) { return effect.BeforeDeath(this); });
        if(deathPrevented)
        {
            if(health.currentHealth <= 0)
            {
                health.currentHealth = 1;
            }
            return;
        }
        //Die. For real.
    }

    public void StepTo(MapPosition mapPosition)
    {
        position.StepTo(mapPosition);
        //TODO
    }

    public void ApplyNewEffect(GenericEffect newEffect)
    {
        activeEffects.ForEach(delegate (GenericEffect existingEffect) { existingEffect.BeforeNewEffect(this, newEffect); });
        activeEffects.Add(newEffect);
        activeEffects.ForEach(delegate (GenericEffect existingEffect) { existingEffect.AfterNewEffect(this, newEffect); });
    }
}