using System;
using System.Collections;
using Core.Extensions;
using UnityEngine;
using Random = UnityEngine.Random;

public class EnemyBulletPattern : EnemyAbility
{
	[Serializable]
	public class ProjectileDirection
	{
		public Projectile projectile;
		public Transform direction;
		public float timing;
		public int amount;
		public float burstTiming;
		public float projectileSpeed;
		public bool aimedShot;
	}
	
	[SerializeField] protected ProjectileDirection[] projectileDirections;
	[SerializeField] private bool randomAim;

	protected override void AbilityEffects()
	{
		base.AbilityEffects();
		transform.Lookat2D(direction);
		if (randomAim)
		{
			transform.eulerAngles = new Vector3(0, 0, Random.Range(0, 360f));
		}
		foreach (ProjectileDirection projectileDirection in projectileDirections)
		{
			if (projectileDirection.timing <= 0 && projectileDirection.amount <= 1)
			{
				ShootProjectile(projectileDirection.projectile, projectileDirection.direction.position, projectileDirection.projectileSpeed, projectileDirection.aimedShot);
			}
			else if (projectileDirection.amount > 1)
			{
				StartCoroutine(BurstFire(projectileDirection, projectileDirection.amount,
					projectileDirection.burstTiming));
			}
			else
			{
				StartCoroutine(DelayedShot(projectileDirection, projectileDirection.timing));
			}
		}
	}
	private IEnumerator BurstFire(ProjectileDirection projectile, int burstCount, float burstDelay)
	{
		int currentCount = 0;
		while (currentCount < burstCount)
		{
			ShootProjectile(projectile.projectile, projectile.direction.position, projectile.projectileSpeed, projectile.aimedShot);
			currentCount++;
			yield return new WaitForSeconds(burstDelay);
		}
		yield break;
	}

	private IEnumerator DelayedShot(ProjectileDirection projectile, float delay)
	{
		float currentDelayTiming = 0f;
		while (currentDelayTiming < delay)
		{
			currentDelayTiming += Time.deltaTime;
			if (currentDelayTiming > delay)
			{
				if (projectile.amount > 1)
				{
					StartCoroutine(BurstFire(projectile, projectile.amount, projectile.burstTiming));
				}
				else
				{
					ShootProjectile(projectile.projectile, projectile.direction.position, projectile.projectileSpeed, projectile.aimedShot);
				}
			}
			yield return null;
		}
	}
}