using UnityEngine;
using EnhancedUI.EnhancedScroller;
using System.Collections.Generic;
using asap.core;

public class EventOfferJourneyShellScroller : AEventOfferJourneyScroller
{
    [SerializeField] private EnhancedScroller scroller;
    [SerializeField] private EventOfferJourneyScrollerScrollRect scrollRect;
    [SerializeField] private EventOfferJourneyScrollerCellShellLeft leftCell;
    [SerializeField] private EventOfferJourneyScrollerCellShellRight rightCell;
    [SerializeField]
    private float normalCellHeight = 280f,
        pointShowDuration = 0.1f,
        pointGapDuration = 0.1f,
        bubbleFxDelay = 0.5f,
        rewardScale = 0.85f;

    private List<EventOfferJourneyBlockData> _dataList;
    private int _startPosParam;

    #region EnhancedScrollerDelegate
    public override void Init(List<EventOfferJourneyBlockData> dataList, int startPosParam)
    {
        _dataList = dataList;
        _startPosParam = startPosParam % 2;
        scroller.Delegate = this;
        scroller.ReloadData();
    }

    public override EnhancedScrollerCellView GetCellView(EnhancedScroller scroller, int dataIndex, int cellIndex)
    {
        var aniPara = new EventOfferJourneyShellAnimationParams
        {
            showDuration = pointShowDuration,
            gapDuration = pointGapDuration,
            bubbleDelay = bubbleFxDelay,
            rewardScale = rewardScale
        };
        var topBlockIsLeftLayout = _startPosParam == _dataList.Count % 2;
        // Debug.Log("GetCellView " + dataIndex);
        if (dataIndex == 0)
        {
            if (topBlockIsLeftLayout)
            {
                if (scroller.GetCellView(leftCell) is not EventOfferJourneyScrollerCellShellLeft cellViewFinal)
                {
                    Debug.LogError($"<color=red>[EventOfferJourney] Cell view as final is null.</color>");
                    return null;
                }
                cellViewFinal.Init(_dataList[dataIndex], GetBlockState(dataIndex), scroller, aniPara, true);
                return cellViewFinal;
            }
            else
            {
                if (scroller.GetCellView(rightCell) is not EventOfferJourneyScrollerCellShellRight cellViewFinal)
                {
                    Debug.LogError($"<color=red>[EventOfferJourney] Cell view as final is null.</color>");
                    return null;
                }
                cellViewFinal.Init(_dataList[dataIndex], GetBlockState(dataIndex), scroller, aniPara, true);
                return cellViewFinal;
            }
        }
        else if (dataIndex % 2 == 0)
        {
            if (topBlockIsLeftLayout)
            {
                if (scroller.GetCellView(leftCell) is not EventOfferJourneyScrollerCellShellLeft cellViewLeft)
                {
                    Debug.LogError("<color=red>[EventOfferJourney] Cell view as left is null.</color>");
                    return null;
                }
                cellViewLeft.Init(_dataList[dataIndex], GetBlockState(dataIndex), scroller, aniPara);
                return cellViewLeft;
            }
            else
            {
                if (scroller.GetCellView(rightCell) is not EventOfferJourneyScrollerCellShellRight cellViewRight)
                {
                    Debug.LogError("<color=red>[EventOfferJourney] Cell view as right is null.</color>");
                    return null;
                }
                cellViewRight.Init(_dataList[dataIndex], GetBlockState(dataIndex), scroller, aniPara);
                return cellViewRight;
            }
        }
        else
        {
            if (topBlockIsLeftLayout)
            {
                if (scroller.GetCellView(rightCell) is not EventOfferJourneyScrollerCellShellRight cellViewRight)
                {
                    Debug.LogError("<color=red>[EventOfferJourney] Cell view as right is null.</color>");
                    return null;
                }
                cellViewRight.Init(_dataList[dataIndex], GetBlockState(dataIndex), scroller, aniPara);
                return cellViewRight;
            }
            else
            {
                if (scroller.GetCellView(leftCell) is not EventOfferJourneyScrollerCellShellLeft cellViewLeft)
                {
                    Debug.LogError("<color=red>[EventOfferJourney] Cell view as left is null.</color>");
                    return null;
                }
                cellViewLeft.Init(_dataList[dataIndex], GetBlockState(dataIndex), scroller, aniPara);
                return cellViewLeft;
            }
        }
    }

    public override float GetCellViewSize(EnhancedScroller scroller, int dataIndex)
    {
        return normalCellHeight;
    }

    public override int GetNumberOfCells(EnhancedScroller scroller)
    {
        return _dataList.Count;
    }
    #endregion

    public override async void JumpTo(int progress, float tweenTime = 0.5f)
    {
        var idx = _dataList.Count - progress - 1;
        var dataIndex = idx % GetNumberOfCells(scroller);
        scroller.JumpToDataIndex(
            dataIndex: dataIndex,
            tweenType: EnhancedScroller.TweenType.easeInOutCubic,
            tweenTime: tweenTime,
            scrollerOffset: 0.5f,
            cellOffset: 0.5f);
        scrollRect.BlockScroll();
        await System.Threading.Tasks.Task.Delay(System.TimeSpan.FromSeconds(0.5f));
        scrollRect.UnblockScroll();
    }

    private EventOfferJourneyBlockView.EState GetBlockState(int dataIndex)
    {
        var idx = _dataList.Count - dataIndex - 1;
        var progress = GContext.container.Resolve<IEventOfferJourneyData>().Progress;
        if (idx == progress)
            return EventOfferJourneyBlockView.EState.Active;
        else if (idx < progress)
            return EventOfferJourneyBlockView.EState.Bought;
        else
            return EventOfferJourneyBlockView.EState.Locked;
    }

    public override void Refresh(int progress)
    {
        var dataIndex = _dataList.Count - progress - 1;
        var scrollViewCurrent = scroller.GetCellViewAtDataIndex(dataIndex) as EventOfferJourneyBlockView;
        if (scrollViewCurrent != null)
            scrollViewCurrent.Init(_dataList[dataIndex], GetBlockState(dataIndex), scroller, dataIndex <= 0);
        var scrollViewNext = scroller.GetCellViewAtDataIndex(dataIndex - 1) as EventOfferJourneyBlockView;
        if (scrollViewNext != null)
            scrollViewNext.Init(_dataList[dataIndex - 1], GetBlockState(dataIndex - 1), scroller, dataIndex - 1 <= 0);
    }
}

public interface IEventOfferJourneyScroller
{
    public void Init(List<EventOfferJourneyBlockData> dataList, int startPosParam);
    public void JumpTo(int progress, float tweenTime);
    public void Refresh(int progress);
}

public abstract class AEventOfferJourneyScroller : MonoBehaviour, IEventOfferJourneyScroller, IEnhancedScrollerDelegate
{
    public abstract EnhancedScrollerCellView GetCellView(EnhancedScroller scroller, int dataIndex, int cellIndex);
    public abstract float GetCellViewSize(EnhancedScroller scroller, int dataIndex);
    public abstract int GetNumberOfCells(EnhancedScroller scroller);
    public abstract void Init(List<EventOfferJourneyBlockData> dataList, int startPosParam);
    public abstract void JumpTo(int progress, float tweenTime = 0.5f);
    public abstract void Refresh(int progress);
}

public class EventOfferJourneyShellAnimationParams
{
    public float showDuration;
    public float gapDuration;
    public float bubbleDelay;
    public float rewardScale;
}