using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;

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

public enum Direction
{
    Left,
    Null,
    Right,
}

public class Garden : Regist, IDragHandler, IPointerClickHandler, IEndDragHandler, IBeginDragHandler
{
    #region 变量

    public static int Page
    {
        get
        {
            return GardenManager.PageList.Count - 1;
        }
    }

    public static int CurPage;

    public static bool Flag1 = true;
    public static bool Flag2 = true;
    public static float SlideSensi = 0.1f;

    public static float BK2MoveRatio = 0.25f;
    public static float BK3MoveRatio = 0.5f;
    public static float BK4MoveRatio = 0.75f;
    public static float PlayerMoveRatio = 0.75f;

    public static Garden Instance;
    public static Direction Direction;
    public static Transform Player;
    public static Transform GardenBK2;
    public static Transform GardenBK3;
    public static Transform GardenBK4;
    public static Transform GardenPage;

    public static List<Vector3> PagePos = new List<Vector3>();
    public static List<Vector3> PlayerPos = new List<Vector3>();
    public static List<Vector3> GardenBK2Pos = new List<Vector3>();
    public static List<Vector3> GardenBK3Pos = new List<Vector3>();
    public static List<Vector3> GardenBK4Pos = new List<Vector3>();

    #endregion

    public override bool InitAtOnce()
    {
        if (base.InitAtOnce())
        {
            return true;
        }

        Instance = this;


        #region Item

        ResourceManager.Get("Bird0").CreateTweenSr(0, 1, 2f, false, true, Curve.EaseOutQuad, false, true);
        ResourceManager.Get("Tree1").CreateTweenSr(0, 1, 2f, false, true, Curve.EaseOutQuad);
        ResourceManager.Get("Tree2").CreateTweenSr(0, 1, 2f, false, true, Curve.EaseOutQuad);
        ResourceManager.Get("Rainbow").CreateTweenSr(0, 1, 2f, false, true, Curve.EaseOutQuad);

        #endregion

        #region Cloud1

        Transform tra = ResourceManager.Get("Cloud1");

        TweenRoot tween = tra.CreateTweenVec2D(new Vector3(-14, tra.localPosition.y, tra.localPosition.z), 85f, true, false, true, Curve.Linear);

        tween.Repeat = true;

        tween.StartForward();

        #endregion

        #region Cloud2

        tra = ResourceManager.Get("Cloud2");

        tween = tra.CreateTweenVec2D(new Vector3(-14, tra.localPosition.y, tra.localPosition.z), 127.5f, true, false, true, Curve.Linear);

        tween.Repeat = true;

        tween.StartForward();

        #endregion

        #region Cloud3

        tra = ResourceManager.Get("Cloud3");

        tween = tra.CreateTweenVec2D(new Vector3(-14, tra.localPosition.y, tra.localPosition.z), 170f, true, false, true, Curve.Linear);

        tween.Repeat = true;

        tween.StartForward();

        #endregion

        #region Garden

        transform.CreateTweenSr(0, 1, 0.25f, false, true, Curve.EaseOutQuad, false, true);

        #endregion

        #region GardenMini

        ResourceManager.Get("GardenMini").CreateTweenVec2D
        (
            ResourceManager.Get("MiniPos").position,
            0.5f,
            false,
            false,
            true,
            Curve.EaseOutQuad
        );

        #endregion

        #region GardenPage

        GardenPage = ResourceManager.Get("GardenPage");

        Move2D move2D = GardenPage.CreateMove2D();

        move2D.OnForwardStart += () =>
        {
            Flag2 = false;
        };

        move2D.OnForwardFinish += () =>
        {
            Flag2 = true;
        };

        #endregion

        return false;
    }

    public override void RegistReference()
    {
        GardenBK2 = ResourceManager.Get("GardenBK2");
        GardenBK3 = ResourceManager.Get("GardenBK3");
        GardenBK4 = ResourceManager.Get("GardenBK4");

        GardenBK2Pos.Add(ResourceManager.Get("BK2RightPos").position);
        GardenBK2Pos.Add(ResourceManager.Get("BK2LeftPos").position);

        GardenBK3Pos.Add(ResourceManager.Get("BK3RightPos").position);
        GardenBK3Pos.Add(ResourceManager.Get("BK3LeftPos").position);

        GardenBK4Pos.Add(ResourceManager.Get("BK4RightPos").position);
        GardenBK4Pos.Add(ResourceManager.Get("BK4LeftPos").position);

        if (!TutorialManager.NewplayerTutorial)
        {
            Player = ResourceManager.Get("Player");
            PlayerPos.Add(PlayerManager.Player.ChildDic["RightPos"].position);
            PlayerPos.Add(PlayerManager.Player.ChildDic["LeftPos"].position);
        }
    }

    public override void FirstInit()
    {
        ResetPage();
    }

    public override void TutorialToRegular()
    {
        Player = ResourceManager.Get("Player");
        PlayerPos.Add(PlayerManager.Player.ChildDic["RightPos"].position);
        PlayerPos.Add(PlayerManager.Player.ChildDic["LeftPos"].position);
    }


    public void OnDrag(PointerEventData eventData)
    {
        if (Flag1 && Flag2)
        {
            if (Direction == Direction.Null)
            {
                if (eventData.delta.x > 0)
                {
                    Direction = Direction.Right;
                }
                else
                {
                    Direction = Direction.Left;
                }
            }
            
            if (Direction == Direction.Left)
            {
                if (eventData.delta.x > 0)
                {
                    Return();
                }
                else
                {
                    #region MyRegion

                    float rawDeltaX = eventData.position.x - eventData.pressPosition.x;

                    if (CurPage < Page - 1)
                    {
                        float tempX = Mathf.Clamp(eventData.delta.x / 10, -2, 2);

                        if (Page == 1)
                        {
                            tempX *= SlideSensi;
                        }
                        else
                        {
                            tempX *= SlideSensi / (Page - 1);
                        }

                        Player.Translate(Player.right * tempX * PlayerMoveRatio, Space.World);

                        GardenBK2.Translate(GardenBK2.right * tempX * BK2MoveRatio, Space.World);
                        GardenBK3.Translate(GardenBK3.right * tempX * BK3MoveRatio, Space.World);
                        GardenBK4.Translate(GardenBK4.right * tempX * BK4MoveRatio, Space.World);
                        GardenPage.Translate(GardenPage.right * tempX, Space.World);

                        if (rawDeltaX < -300)
                        {
                            NextPage();
                        }
                    }
                    else
                    {
                        float ratio = Mathf.Abs(GardenPage.position.x - PagePos.Back(1).x)/0.7f;

                        float sensi = Mathf.Lerp(SlideSensi, 0, ratio);

                        float tempX = Mathf.Clamp(eventData.delta.x / 10, -2, 2) * sensi;

                        GardenPage.Translate(GardenPage.right * tempX, Space.World);
                    }

                    #endregion
                }
            }
            else if (Direction == Direction.Right)
            {
                if (eventData.delta.x < 0)
                {
                    Return();
                }
                else
                {
                    #region MyRegion

                    float rawDeltaX = eventData.position.x - eventData.pressPosition.x;

                    if (CurPage > 0)
                    {
                        float tempX = Mathf.Clamp(eventData.delta.x / 10, -2, 2);

                        if (Page == 1)
                        {
                            tempX *= SlideSensi;
                        }
                        else
                        {
                            tempX *= SlideSensi / (Page - 1);
                        }

                        Player.Translate(Player.right * tempX * PlayerMoveRatio, Space.World);

                        GardenBK2.Translate(GardenBK2.right * tempX * BK2MoveRatio, Space.World);
                        GardenBK3.Translate(GardenBK3.right * tempX * BK3MoveRatio, Space.World);
                        GardenBK4.Translate(GardenBK4.right * tempX * BK4MoveRatio, Space.World);
                        GardenPage.Translate(GardenPage.right * tempX, Space.World);

                        if (rawDeltaX > 300)
                        {
                            PrevPage();
                        }
                    }
                    else
                    {
                        float ratio = Mathf.Abs(GardenPage.position.x - PagePos[0].x) / 0.7f;

                        float sensi = Mathf.Lerp(SlideSensi, 0, ratio);

                        float tempX = Mathf.Clamp(eventData.delta.x / 10, -2, 2) * sensi;

                        GardenPage.Translate(GardenPage.right * tempX, Space.World);
                    }

                    #endregion
                }
            }
        }
    }

    public void OnEndDrag(PointerEventData eventData)
    {
        if (Flag1 && Flag2)
        {
            Return();
        }

        Flag1 = true;

        Direction = Direction.Null;
    }

    public void OnBeginDrag(PointerEventData eventData)
    {
        Direction = Direction.Null;
    }

    public void OnPointerClick(PointerEventData eventData)
    {
        if (!eventData.hovered.Contains(eventData.rawPointerPress))
        {
            return;
        }
        
        if (eventData.rawPointerPress.transform.name.Contains("Slot"))
        {
            if (VisitManager.InVisit)
            {
                return;
            }

            Slot slot = eventData.rawPointerPress.GetComponentInParent<Slot>();

            if (slot.Lock == false)
            {
                Toast.Show(1.5f, Language.GetStr("Common", "UnlockSlot"));
            }
            else
            {
                ResourceManager.Get(PrefabLabel.G_Flower).TweenForCG();
            }
        }
    }


    public static void Return()
    {
        Flag1 = false;

        float ratio;

        if (Page == 1)
        {
            ratio = 0;
        }
        else
        {
            ratio = CurPage / (Page - 1f);
        }

        Vector3 playerPos = Vector3.Lerp(PlayerPos[0], PlayerPos[1], ratio);
        Vector3 gardenPos2 = Vector3.Lerp(GardenBK2Pos[0], GardenBK2Pos[1], ratio);
        Vector3 gardenPos3 = Vector3.Lerp(GardenBK3Pos[0], GardenBK3Pos[1], ratio);
        Vector3 gardenPos4 = Vector3.Lerp(GardenBK4Pos[0], GardenBK4Pos[1], ratio);

        Player.Move2D(playerPos, 0.5f, false, Curve.EaseOutQuad);

        GardenBK2.Move2D(gardenPos2, 0.5f, false, Curve.EaseOutQuad);
        GardenBK3.Move2D(gardenPos3, 0.5f, false, Curve.EaseOutQuad);
        GardenBK4.Move2D(gardenPos4, 0.5f, false, Curve.EaseOutQuad);

        GardenPage.Move2D(PagePos[CurPage], 0.5f, false, Curve.EaseOutQuad);
    }

    public static void PrevPage()
    {
        CurPage--;

        Flag1 = false;

        float ratio = CurPage / (Page - 1f);

        Vector3 playerPos = Vector3.Lerp(PlayerPos[0], PlayerPos[1], ratio);
        Vector3 gardenPos2 = Vector3.Lerp(GardenBK2Pos[0], GardenBK2Pos[1], ratio);
        Vector3 gardenPos3 = Vector3.Lerp(GardenBK3Pos[0], GardenBK3Pos[1], ratio);
        Vector3 gardenPos4 = Vector3.Lerp(GardenBK4Pos[0], GardenBK4Pos[1], ratio);

        Player.Move2D(playerPos, 0.5f, false, Curve.EaseOutQuad);

        GardenBK2.Move2D(gardenPos2, 0.5f, false, Curve.EaseOutQuad);
        GardenBK3.Move2D(gardenPos3, 0.5f, false, Curve.EaseOutQuad);
        GardenBK4.Move2D(gardenPos4, 0.5f, false, Curve.EaseOutQuad);

        GardenPage.Move2D(PagePos[CurPage], 0.5f, false, Curve.EaseOutQuad);
    }

    public static void NextPage()
    {
        CurPage++;

        Flag1 = false;

        float ratio = CurPage / (Page - 1f);

        Vector3 playerPos = Vector3.Lerp(PlayerPos[0], PlayerPos[1], ratio);
        Vector3 gardenPos2 = Vector3.Lerp(GardenBK2Pos[0], GardenBK2Pos[1], ratio);
        Vector3 gardenPos3 = Vector3.Lerp(GardenBK3Pos[0], GardenBK3Pos[1], ratio);
        Vector3 gardenPos4 = Vector3.Lerp(GardenBK4Pos[0], GardenBK4Pos[1], ratio);

        Player.Move2D(playerPos, 0.5f, false, Curve.EaseOutQuad);

        GardenBK2.Move2D(gardenPos2, 0.5f, false, Curve.EaseOutQuad);
        GardenBK3.Move2D(gardenPos3, 0.5f, false, Curve.EaseOutQuad);
        GardenBK4.Move2D(gardenPos4, 0.5f, false, Curve.EaseOutQuad);

        GardenPage.Move2D(PagePos[CurPage], 0.5f, false, Curve.EaseOutQuad);
    }

    public static void ResetPage()
    {
        CurPage = 0;

        GardenBK2.position = GardenBK2Pos[0];
        GardenBK3.position = GardenBK3Pos[0];
        GardenBK4.position = GardenBK4Pos[0];
        GardenPage.position = PagePos[0];
    }
}