using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using System.Collections;

namespace Snxxz.UI
{
    public class TimeListSlider : MonoBehaviour,IDragHandler,IEndDragHandler
    {
        [SerializeField] protected Transform sliderBg;
        [SerializeField] protected ScrollerController ctrl;
        [SerializeField] TimeType timeType;

        public virtual void OnDrag(PointerEventData eventData)
        {
            ctrl.m_Scorller.RefreshActiveCellViews();
        }
        public virtual void OnEndDrag(PointerEventData eventData)
        {
            StartCoroutine(DelayJump());
        }
    
        IEnumerator DelayJump()
        {
            yield return null;
            ctrl.JumpIndex(GetJumpToIndex() - SetFreeTimeWin.DownNum);
            yield return null;
            ctrl.m_Scorller.RefreshActiveCellViews();
        }

        public virtual int GetJumpToIndex()
        {
            Transform content = ctrl.mScrollRect.content;
            int childCount = content.childCount;
            int minIndex = 0;
            int maxIndex = 0;
            for(int i = 0; i < childCount; i++)
            {
                FreeTimeCell timeCell = content.GetChild(i).GetComponent<FreeTimeCell>();
                if(timeCell != null)
                {
                    minIndex = timeCell.index;
                    break;
                }
            }

            for (int i = childCount - 1; i > -1; i--)
            {
                FreeTimeCell timeCell = content.GetChild(i).GetComponent<FreeTimeCell>();
                if (timeCell != null)
                {
                    maxIndex = timeCell.index;
                    break;
                }
            }

            switch (timeType)
            {
                case TimeType.Hour:
                    if (maxIndex < minIndex)
                    {
                        maxIndex += 24;
                    }
                    break;
                case TimeType.Minute:
                    if (maxIndex < minIndex)
                    {
                        maxIndex += 60;
                    }
                    break;
            }

            return (minIndex + maxIndex) / 2;
        }


    }
}