using Container;
using EnhancedUI;
using System;
using UnityEngine;

public partial class FantasyWorldSettingView : View
{
    [SerializeField] GameObject leftPanel;
    [SerializeField] GameObject rightPanel;

    [SerializeField] SelectedWorld selectedWorld;

    [SerializeField] EScrController worldListScrollCtrl;

    HorizontalDataMatrix<GameModData> worldDataMatrix;

    GameModData selectedMod;
    GameModEscrListRowSlot selectedListSlot;

    private void Start()
    {
        leftPanel.SetActive(false);
        rightPanel.SetActive(false);
        viewState = ViewState.Hidden;
    }

    private void LateUpdate()
    {
        selectedWorld.Update();
    }

    public override void Show()
    {
        GameUIMgr.SSetMainUiOn(false);
        GameUIMgr.SOpenLeftPanel(fatansyWorldRing : true, memoryPiece : true);

        ResetPosition();
        leftPanel.SetActive(true);
        rightPanel.SetActive(true);
        viewState = ViewState.Shown;

        RefreshWorldListScroll();
    }

    public override void Hide()
    {
        selectedWorld.Dispose();

        selectedMod = null;
        selectedListSlot = null;

        leftPanel.SetActive(false);
        rightPanel.SetActive(false);
        viewState = ViewState.Hidden;

        GameUIMgr.SCloseLeftPanel();
        GameUIMgr.SSetMainUiOn(true);
    }

    private void RefreshWorldListScroll()
    {
        if(worldListScrollCtrl is null) return;

        if(worldDataMatrix is null)
        {
            const int columnCount = 1;
            worldDataMatrix = new HorizontalDataMatrix<GameModData>(columnCount);

            string[] modCodeNames = new string[]
            {
                DreamWorldProp.CodeName
            };

            for (int i = 0; i < modCodeNames.Length; i++)
            {
                if (GameModDataGroup.Instance.TryGetModData(modCodeNames[i], out GameModData modData))
                {
                    worldDataMatrix.PushBack(modData);
                }
            }
        }

        var worldRowIndices = new SmallList<int>();
        for (int i = 0; i < worldDataMatrix.RowCount; i++)
        {
            worldRowIndices.Add(i);
        }

        worldListScrollCtrl.LoadDatas(worldRowIndices, new ListRowDelegate
        {
            OnSetData = OnSetWorldListRow
        });
    }

    private void OnSetWorldListRow(EscrListRowSlot slot)
    {
        var worldSlot = slot as GameModEscrListRowSlot;
        if (worldSlot is null) return;

        if(worldDataMatrix.TryGetValue(worldSlot.RowIndex, worldSlot.ColumnIndex, out var worldData))
        {
            // if there is no selected slot, then select this slot
            if (selectedMod is null)
            {
                selectedMod = worldData;
                selectedListSlot = worldSlot;
                selectedWorld.SetData(worldData);
            }

            worldSlot.SetData(worldData);
            worldSlot.SetActiveSelectedIndicator(selectedMod == worldData);

            worldSlot.OnClick -= OnClickWorldSlot;
            worldSlot.OnClick += OnClickWorldSlot;
        }
    }

    private void OnClickWorldSlot(GameModEscrListRowSlot slot)
    {
        selectedListSlot?.SetActiveSelectedIndicator(false);
        
        var selectedMod = slot.GetData() as GameModData;
        this.selectedMod = selectedMod;
        selectedListSlot = slot;
        selectedListSlot.SetActiveSelectedIndicator(true);

        if (selectedMod != null)
        {
            selectedWorld.SetData(selectedMod);
        }
    }

    public void EnterSelectedWorld()
    {
        if(selectedWorld.worldData is null) return;
        DungeonMgr.Instance.OpenPopupPreset(selectedWorld.worldData, Hide);
    }
}

public partial class FantasyWorldSettingView : View
{
    [Serializable]
    class SelectedWorld
    {
        [SerializeField] ExtendImage worldImage;
        [SerializeField] ExtendText levelText;
        [SerializeField] ButtonIV enterButton;
        [SerializeField] ObjectIndicator[] rewards;
        public GameModData worldData { get; private set; }

        public void SetData(GameModData worldData)
        {
            this.worldData = worldData;
            
            if(worldData is null) return;

            SetImage();
            SetLevelText();
            SetRewards();
        }

        public void Update()
        {
            if(worldData is null) return;

            if(enterButton != null)
                enterButton.interactable = worldData.IsUnlocked && DataHandler.Goods.fantasyWorldRing >= 1;
        }

        private void SetImage()
        {
            var hasThumbnail = worldData as IHasThumbnail;
            if(hasThumbnail is null) return;

            worldImage?.SetImageInAtlasAsync(hasThumbnail.ThumbnailAtlasName, hasThumbnail.ThumbnailSpriteName);
        }

        private void SetLevelText()
        {
            levelText?.SetText(FormatString.StringFormat(LocalizationText.GetText("dg_diff"), worldData.Level));
        }

        private void SetRewards()
        {
            var hasRewards = worldData as IHasRewards;
            if(hasRewards is null) return;

            var rewardList = hasRewards.GetRewardList(worldData.Level);
            for (int i = 0; i < rewards.Length; i++)
            {
                bool isActive = i < rewardList.Count;

                rewards[i].gameObject.SetActive(isActive);
                if(isActive)
                    ObjectIndicatorSetter.SetWith(rewards[i], rewardList[i]);
            }
        }

        public void Dispose()
        {
            worldData = null;
        }
    }
}