using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using ChivaXR;
using Sirenix.OdinInspector;
using System;
using System.Linq;

public class AniDriver_IntervalAnimation : AnimationDriverBase
{
    [SerializeField]
    private Animation m_Animation;

    [ValueDropdown("GetAllAnimationNames")]
    [SerializeField]
    private string m_AniName;

    [LabelWidth(50)]
    [LabelText("起始帧")]
    [SerializeField]
    private int m_StartFrame;

    [LabelWidth(50)]
    [LabelText("结束帧")]
    [SerializeField]
    private int m_EndFrame;

    [LabelWidth(100)]
    [LabelText("动画帧率")]
    [SerializeField]
    private int m_AniFPS = 30;

    [LabelWidth(100)]
    [LabelText("播放速度")]
    [SerializeField]
    private float m_Speed = 1;


    private AnimationState m_AniState;

    /// <summary>
    /// 当前帧数
    /// </summary>
    private int m_CurrentFrame = 0;

    public override void FinishedState()
    {
        
    }

    public override void InitState()
    {
        if (m_Animation == null || string.IsNullOrEmpty(m_AniName))
        {
            return;
        }

        m_AniState = m_Animation[m_AniName];
    }

    public override void StartPlay(Action finishedCallBack = null)
    {
        StartAniCoroutine(PlayAnimation(finishedCallBack));
    }

    /// <summary>
    /// 获取动画名称信息
    /// </summary>
    /// <returns></returns>
    private IEnumerable GetAllAnimationNames()
    {
        return AnimationManager.Instance.animationDatas.Select(value => new ValueDropdownItem(value.AniDataName, value.AniDataName));
    }

    private IEnumerator PlayAnimation(Action finishedCallBack)
    {
        yield return new WaitForSeconds(m_StartFrame / m_AniFPS);

        while (m_CurrentFrame < m_EndFrame)
        {
            ChangeAniDataProcess(m_CurrentFrame / m_AniFPS);
            m_CurrentFrame++;
        }

        finishedCallBack?.Invoke();
    }

    /// <summary>
    /// 改变动画进度
    /// </summary>
    /// <param name="_value"></param>
    private void ChangeAniDataProcess(float _value)
    {
        if (m_Animation == null || m_AniState == null)
        {
            return;
        }

        m_AniState.enabled = true;
        m_AniState.speed = 0;
        m_AniState.weight = 1;
        m_AniState.normalizedTime = _value;
        m_Animation.Sample();
        m_AniState.enabled = false;
    }
}