using UnityEngine;
using RR.Game2D.Entities.Projectiles;

namespace RR.Game2D.Behaviour
{
    public class EnemyFireScript : MonoBehaviour
    {
        [Header("Снаряд")]
        [SerializeField] private BasicProjectile projectilePrefab;
        [SerializeField] private float projectileLifetime = 1f;
        [SerializeField] private float throwCooldown = 5f;
        [SerializeField] private float throwSpeed = 20f;

        private float lastThrowTime = -999f;
        private BasicProjectile projectile;

        void Start()
        {
            lastThrowTime = Time.time;
        }

        void Update()
        {
            if (!projectilePrefab)
            {
                Debug.LogError("EnemyFireScript: projectile prefab missing; assign projectile prefab in the inspector");
                return;
            }

            if (projectile != null && Time.time - lastThrowTime >= projectile.maxLifetime)
                projectile.Despawn();

            // Бросок
            if (Time.time - lastThrowTime >= throwCooldown)
                Throw();
        }

        private void OnDestroy()
        {
            // При смерти врага сго снаряд тоже пропадает 
            if (projectile != null) projectile.Despawn();
        }

        /// <summary>
        /// Метод для броска снаряда (выстрела).
        /// У снаряда обязательно должен быть метод Launch(Vector2 direction)
        /// </summary>
        private void Throw()
        {
            float rotationY = transform.localEulerAngles.y;
            Vector2 throwDirection = rotationY >= 180f ? Vector2.right : Vector2.left;
            Collider2D enemyCol = GetComponent<Collider2D>();
            Vector2 throwPosition = new(1.4f * throwDirection.x + transform.position.x, enemyCol.bounds.center.y);

            projectile = Instantiate(projectilePrefab, throwPosition, Quaternion.identity);
            projectile.maxLifetime = projectileLifetime;

            Collider2D projectileCol = projectile.GetComponent<Collider2D>();

            projectile.transform.localRotation = throwDirection.x < 0 ? Quaternion.Inverse(projectile.transform.localRotation) : projectile.transform.localRotation;

            projectile.transform.position = throwPosition;
            projectile.Launch(throwDirection, throwSpeed);

            if (enemyCol && projectileCol) Physics2D.IgnoreCollision(enemyCol, projectileCol, true);

            lastThrowTime = Time.time;
        }
    }
}