using System;
using UnityEngine;

[RequireComponent(typeof(AudioSource))]
public abstract class Weapon : MonoBehaviour
{
    public event Action<int> AmmoAdded;
    public event Action<AbstractProjectile> OnShoot;
    public event Action<int> AmmoChanged;
    public event Action<Weapon> OnReloaded;

    [Header("Ссылки")]
    [SerializeField] protected GameObject ProjectilePrefab;
    [SerializeField] protected Transform ShootPoint;
    [SerializeField] protected GameObject Owner;
    [SerializeField] protected AudioSource ShootAudio;

    [field: SerializeField] public int MaxAmmo { get; private set; } = 20;
    public int Ammo = 20;
    public float AmmoPercent => (float)Ammo / (float)MaxAmmo;

    protected float LastShootTime = -1000;
    protected bool reloaded;

    //Свойства
    public abstract bool CanShoot { get; }
    public abstract float ReloadPercent { get; }


    //Методы
    public abstract void Shoot();

    /// <summary>
    /// Вызывает событие выстрела для внешних систем. Списывает 1 снаряд.
    /// </summary>
    public void PerformShoot(AbstractProjectile projectile)
    {
        Ammo -= 1;
        AmmoChanged?.Invoke(Ammo);
        LastShootTime = Time.time;
        reloaded = false;
        ShootAudio?.Play();
        OnShoot?.Invoke(projectile);
    }

    public void AddAmmo(int ammoToAdd)
    {
        Ammo += ammoToAdd;
        AmmoChanged?.Invoke(Ammo);
        AmmoAdded?.Invoke(ammoToAdd);
    }

    public void FillAmmo()
    {
        int ammoDelta = MaxAmmo - Ammo;
        Ammo = MaxAmmo;
        AmmoChanged?.Invoke(Ammo);
        AmmoAdded?.Invoke(ammoDelta);
    }

    public void SetReloaded()
    {
        reloaded = true;
        OnReloaded?.Invoke(this);
        Debug.Log("Вызываю перезаряжено");
    }
}