using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Spine.Unity;

public class PHomePetAnimation : MonoBehaviour
{
    [SerializeField]
    private PHomePet m_pet;

    [SerializeField]
    private SkeletonAnimation m_animation;

    [SerializeField]
    [SpineAnimation]
    private string m_runningAnimation = "Running";

    [SerializeField]
    [SpineAnimation]
    private string m_idleAnimation = "Idle 1";

    [SerializeField]
    [SpineAnimation]
    private string m_attackAnimation = "";

    [SerializeField]
    private float m_attackAnimTime;
    private float m_attackAnimTimer;

    private List<PHomeWeapon> m_registeredWeapons;

    private float m_defaultXScale;

    private bool Moving
    {
        get
        {
            return m_pet.CurrentVelocity.sqrMagnitude >= 0.01f;
        }
    }

    private bool Attacking
    {
        get
        {
            return m_attackAnimTimer > 0.0f;
        }
    }

    private void Update_Animation()
    {
        if (Attacking)
        {
            //m_animation.AnimationName = m_attackAnimation;
        }
        else
        {
            string animName = Moving ? m_runningAnimation : m_idleAnimation;
            m_animation.AnimationName = animName;
        }
    }

    private void Update_Attack()
    {
        if (Attacking)
        {
            m_attackAnimTimer -= Time.deltaTime;
        }
    }

    private void Update_Rotation()
    {
        if (!Moving)
        {
            return;
        }

        // Moving
        Vector3 scale = transform.localScale;
        if (m_pet.CurrentVelocity.x < 0.0f)
        {
            scale.x = m_defaultXScale * -1.0f;
        }
        else
        {
            scale.x = m_defaultXScale;
        }
        transform.localScale = scale;
    }

    private void Awake()
    {
        m_defaultXScale = transform.localScale.x;
    }

    private void Start()
    {
        m_pet.OnAfterWeaponsChanged += OnAfterWeaponsChanged;
        OnAfterWeaponsChanged();
    }

    private void OnDestroy()
    {
        m_pet.OnAfterWeaponsChanged -= OnAfterWeaponsChanged;
    }

    private void OnAfterWeaponsChanged()
    {
        if (m_registeredWeapons != null)
        {
            foreach (var item in m_registeredWeapons)
            {
                item.OnWeaponStartFiring.RemoveListener(OnAfterWeaponFired);
            }
        }

        m_registeredWeapons = new List<PHomeWeapon>(m_pet.Weapons);
        foreach (var item in m_registeredWeapons)
        {
            item.OnWeaponStartFiring.AddListener(OnAfterWeaponFired);
        }
    }

    private void OnAfterWeaponFired()
    {
        m_attackAnimTimer = m_attackAnimTime;
        if (m_attackAnimTimer > 0)
        {
            m_animation.state.SetAnimation(0, m_attackAnimation, false);
            //m_animation.AnimationName = m_attackAnimation;
        }
        //print("Fired");
    }

    private void Update()
    {
        Update_Attack();
        Update_Rotation();
        Update_Animation();
    }
}