using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using UnityEngine.UI;

/// <summary>
/// 编辑网格 - 紫色格子
/// 功能：编辑网格， 寻路测试，格子分层显示
/// </summary>
public class UICellEditor : MonoBehaviour
{
    public Toggle togEdit;
    public GameObject editPanel;
    public InputField txtBrushRadius;
    public Dropdown dropCellType;
    public Button btnSetBrush;
    public Button btnSaveCells;

    /// <summary>
    /// 正在编辑格子
    /// </summary>
    public CellType editorGrid { private set; get; }

    public ToggleGroup editorAreaToggle;
    public static UICellEditor Instance;
    private void Awake()
    {
        Instance = this;
        editorGrid = CellType.None;
    }
    #region 测试寻路
    public Toggle togPathTest;
    public GameObject pathTestPanel;
    public InputField txtStartPos;      //起点坐标
    public InputField txtEndPos;        //终点坐标
    [HideInInspector]
    public InputField curActiveInput;
    #endregion

    #region 图层编辑
    public Toggle togLayer;
    public GameObject layerPanel;
    public Toggle[] showgLayers;
    private int _layers;
    #endregion

    public Toggle togEffects;

    // Start is called before the first frame update
    void Start()
    {
        _layers = 0;
        editPanel.SetActive(false);
        pathTestPanel.SetActive(false);
        layerPanel.SetActive(false);
        AddInputNameClickEvent(txtStartPos);
        AddInputNameClickEvent(txtEndPos);
    }
    private void OnEnable()
    {
        MapManager.Instance.ResetCell();
    }

    private void AddInputNameClickEvent(InputField input) //可以在Awake中调用
    {
        var eventTrigger = input.gameObject.AddComponent<EventTrigger>();
        UnityAction<BaseEventData> selectEvent = OnInputFieldClicked;
        EventTrigger.Entry onClick = new EventTrigger.Entry()
        {
            eventID = EventTriggerType.PointerClick
        };

        onClick.callback.AddListener(selectEvent);
        eventTrigger.triggers.Add(onClick);
    }

    private void OnInputFieldClicked(BaseEventData data)
    {
        if (data.selectedObject.name.Equals("InputStartCell"))
        {
            curActiveInput = data.selectedObject.GetComponent<InputField>();
            MapManager.Instance.SetCurPathNodePointIdx(-1);
            MapManager.Instance.SetEditCellType(MapManager.EditCellType.PathNodeCell);
        }
        else if (data.selectedObject.name.Equals("InputEndCell"))
        {
            curActiveInput = data.selectedObject.GetComponent<InputField>();
            MapManager.Instance.SetCurPathNodePointIdx(-100);
            MapManager.Instance.SetEditCellType(MapManager.EditCellType.PathNodeCell);
        }
    }

    public void FindPath()
    {
        if(string.IsNullOrEmpty(txtStartPos.text))
        {
            UIWindow.Instance.ShowMessage("起点坐标无效");
            return;
        }

        string[] tmp = txtStartPos.text.Split(',');
        if(tmp.Length != 2)
        {
            UIWindow.Instance.ShowMessage("起点坐标无效");
            return;
        }
        if(!APIs.IsUInt(tmp[0]))
        {
            UIWindow.Instance.ShowMessage("起点坐标无效");
            return;
        }
        if (!APIs.IsUInt(tmp[1]))
        {
            UIWindow.Instance.ShowMessage("起点坐标无效");
            return;
        }

        Vector2Int startPos = new Vector2Int(Convert.ToInt32(tmp[0]), Convert.ToInt32(tmp[1]));

        if (string.IsNullOrEmpty(txtEndPos.text))
        {
            UIWindow.Instance.ShowMessage("终点坐标无效");
            return;
        }
        tmp = txtEndPos.text.Split(',');
        if (tmp.Length != 2)
        {
            UIWindow.Instance.ShowMessage("终点坐标无效");
            return;
        }
        if (!APIs.IsUInt(tmp[0]))
        {
            UIWindow.Instance.ShowMessage("终点坐标无效");
            return;
        }
        if (!APIs.IsUInt(tmp[1]))
        {
            UIWindow.Instance.ShowMessage("终点坐标无效");
            return;
        }

        Vector2Int endPos = new Vector2Int(Convert.ToInt32(tmp[0]), Convert.ToInt32(tmp[1]));

        MapManager.Instance.FindPath(startPos, endPos);
    }

    //编辑网格
    public void OnEditToggleChange()
    {
        if (togEdit.isOn)
        {
            if (MapManager.Instance.map == null)
            {
                UIWindow.Instance.ShowMessage("请先打开地图");
                return;
            }
            editPanel.SetActive(true);
        }
        else
        {
            editPanel.SetActive(false);
            MapManager.Instance.CloseEditor();
        }
    }

    //寻路测试
    public void OnPathTestToggleChange()
    {
        if (togPathTest.isOn)
        {
            if (!UIWindow.Instance.uiCellInfo.bMapOpened)
            {
                UIWindow.Instance.ShowMessage("请先打开地图");
                return;
            }

            pathTestPanel.SetActive(true);
        }
        else
        {
            pathTestPanel.SetActive(false);
        }
    }

    //图层编辑
    public void OnLayerToggleChange()
    {
        if (togLayer.isOn)
        {
            if (!UIWindow.Instance.uiCellInfo.bMapOpened)
            {
                UIWindow.Instance.ShowMessage("请先打开地图");
                return;
            }

            layerPanel.SetActive(true);
        }
        else
        {
            layerPanel.SetActive(false);
            MapManager.Instance.ShowCells();
        }
    }

    //图层编辑
    public void OnShowLayerToggleChange()
    {
    }

    //编辑特效
    public void OnShowEffectsToggleChange()
    {
        MapManager.Instance.HideCells();
    }
    public void EditorAreaToggleChange(Toggle t)
    {
        if (t.isOn)
        {
            switch (t.name)
            {
                case "MoveToggle":
                    editorGrid = CellType.Move;
                    break;
                case "BlockToggle":
                    editorGrid = CellType.Obstacle;
                    break;
                case "HideToggle":
                    editorGrid = CellType.Hide;
                    break;
                case "SafeToggle":
                    editorGrid = CellType.Safe;
                    break;
                case "StallToggle":
                    editorGrid = CellType.Stall;
                    break;
            }
            MapManager.Instance.map?.selector.RefreshPlaneRender();
        }
        if (editorAreaToggle.ActiveToggles().Count() == 0)
        {
            Debug.Log("没有选中编辑区域");
            editorGrid = CellType.None;
        }
    }
    /// <summary>
    /// 清除所选区域
    /// </summary>
    public void CleanSelectArea()
    {
        if (editorGrid == CellType.None)
        {
            UIWindow.Instance.ShowMessage("当前没有可编辑区域");
            return;
        }
        if (!MapManager.Instance.isOpenMap())
            return;
        MapManager.Instance.map.selector.ClearSelectArea();
    }
    /// <summary>
    /// 填满所选区域
    /// </summary>
    public void FullSelectArea()
    {
        if (editorGrid == CellType.None)
        {
            UIWindow.Instance.ShowMessage("当前没有可编辑区域");
            return;
        }
        if (!MapManager.Instance.isOpenMap())
            return;
        MapManager.Instance.map.selector.FullAllArea();
    }
    /// <summary>
    /// 保存地图格子
    /// </summary>
    public void SaveObs()
    {
        if (!MapManager.Instance.isOpenMap())
            return;
        MapManager.Instance.SaveMapObs();
    }
    private void OnDisable()
    {
        foreach(var toggle in editorAreaToggle.ActiveToggles())
        {
            toggle.isOn = false;
        }
    }
}