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

public struct AttackAbilityConfig
{
	public Vector3 velocity; // velocity setup
	public int motion;
	public Animator animator;
	public PhysicsBody body;
}

// 单独的一个招式
public class AttackAbility : AbilityBase
{
    AttackAbilityConfig m_Config = new AttackAbilityConfig();

    private List<Trigger> m_Triggers = new List<Trigger>();

    private List<Trigger> m_LateTriggers = new List<Trigger>();

	/// <summary>
	/// 这个招式产生的hit
	/// </summary>
	private List<HitInfo> m_HitInfo = new List<HitInfo>();
   
    /// <summary>
    /// 从动画结束开始计时
    /// </summary>
    float m_TimeCount;
    public float ExpireTime
    {
        get
        {
            return m_TimeCount;
        }
    }

    /// <summary>
    /// 这个招式的hit个数
    /// </summary>
    public int HitCount
    {
        get
        {
            return m_HitInfo != null ? m_HitInfo.Count : 0;
        }
    }


	public AttackAbility(Animator animator, int animation, PhysicsBody body = null)
	{
		m_Config.animator = animator;
		m_Config.motion = animation;
		m_Config.velocity = Vector3.zero;
		m_Config.body = body;
	}

	public AttackAbility(AttackAbilityConfig config)
	{
		m_Config = config;
	}

	public override void OnInit()
	{
	}

	public override void OnDefend()
	{
		throw new System.NotImplementedException();
	}

	public override void OnEnter()
	{
		m_TimeCount = 0;

		m_Config.animator.CrossFade(m_Config.motion, 0);

		if(m_Config.body != null)
		{
			m_Config.body.LocalVelocity = m_Config.velocity;
		}

        foreach(var hit in m_HitInfo)
        {
            hit.WipeRecords();
        }
	}

	public override void OnExit()
	{
		m_TimeCount = 0;
	}

	public override void OnHit(PhysicsCollisionInfo info)
	{
        Avatar avatar = info.prim2.GetComponentInParent<Avatar>();
        if (avatar == null)
            return;
        for (int i = 0; i < m_HitInfo.Count; ++i)
        {
            HitInfo hitInfo = m_HitInfo[i];
            if(!hitInfo.HasRecord(avatar))
            {
                hitInfo.AddRecord(avatar);
                Debug.Log("hit " + avatar.Name);
                PhysicsBody body = avatar.Body;
                body.AddForce(new Vector3(3000, 0, 0));
                if(avatar is ArmorSoldierScript)
                {
                    ArmorSoldierScript solider = avatar as ArmorSoldierScript;
                    solider.Hurt();
                }
            }
        }
	}

	public override void OnHurt(PhysicsCollisionInfo info)
	{
	}

	public override void OnTranslate(AbilityBase to)
	{
	}

	public override void OnUpdate()
	{
		AnimatorStateInfo info =  m_Config.animator.GetCurrentAnimatorStateInfo(0);
		if(info.shortNameHash == m_Config.motion && info.normalizedTime >= 0.99f)
		{
			m_TimeCount += Time.deltaTime;
		}
		foreach (var abilityTrigger in m_Triggers)
		{
			if (abilityTrigger.Update() && abilityTrigger.Swallow)
				break;
		}
	}

	// 在物理模拟之后
	public override void OnLateUpdate()
	{
		foreach (var trigger in m_LateTriggers)
		{
			if (trigger.Update() && trigger.Swallow)
				break;
		}
	}

	public void AddTrigger(Trigger trigger)
	{
		if (trigger == null || m_Triggers.Contains(trigger))
			return;
		m_Triggers.Add(trigger);
	}

	public void AddLateTrigger(Trigger trigger)
	{
		if (trigger == null || m_LateTriggers.Contains(trigger))
			return;
		m_LateTriggers.Add(trigger);
	}

    public void AddHitDefination(HitDefination defination)
    {
        HitInfo info = new HitInfo();
        info.defination = defination;
        m_HitInfo.Add(info);
    }

}