using System;

namespace HC3;

public partial class Agent : Component.IDamageable
{
	/// <summary>
	/// The agent's health. If this reaches 0, the agent is considered dead.
	/// </summary>
	[Sync, Group( "Health" )]
	public int Health { get; set; } = 100;

	[Property, Group( "Health" )]
	public int MaxHealth { get; set; } = 100;

	[Property, Group( "Health" )]
	public GameObject BloodSplatter { get; set; }

	/// <summary>
	/// Is this agent alive?
	/// </summary>
	public bool IsAlive => Health > 0;

	/// <summary>
	/// Implement IDamageable interface
	/// </summary>
	void IDamageable.OnDamage( in DamageInfo damage )
	{
		int damageAmount = (int)damage.Damage;

		Damage( damageAmount );

		if ( BloodSplatter.IsValid() )
		{
			BloodSplatter?.Clone( damage.Position + Vector3.Up * 16f );
		}
	}

	/// <summary>
	/// Apply damage to this agent
	/// </summary>
	public void Damage( int damage )
	{
		if ( !IsAlive || damage <= 0 )
			return;

		Health -= damage;
		Health = Math.Max( 0, MaxHealth );

		OnDamaged();

		if ( Health <= 0 )
		{
			Kill();
		}
	}

	/// <summary>
	/// Called when the agent takes damage
	/// </summary>
	protected virtual void OnDamaged()
	{
	}

	/// <summary>
	/// Kill this agent immediately
	/// </summary>
	public void Kill()
	{
		if ( !IsAlive )
			return;

		Health = 0;

		OnKilled();
	}

	/// <summary>
	/// Called when the agent is killed
	/// </summary>
	protected virtual void OnKilled()
	{
	}
}