using System;
using HexGrid.Math;
#if UNITY_EDITOR
using UnityEditor;
#endif
using UnityEngine;
using UnityEngine.UI;

namespace HexGrid.MapHelper
{
    
    public enum GridType
    {
        PointyTop,
        
        // 当前仅支持尖顶
        // FlatTop,
    }
    public class MapRoot : MonoBehaviour
    {
        //
        [SerializeField] private GridType gridType;
        // 格子的大小
        [SerializeField] private float gridSize = 1.52f; 
        // 
        [SerializeField] private GameObject standGridPrefab;
        
        private GameObject go;
        private void Awake()
        {
            if (standGridPrefab)
            {
                go = Instantiate(standGridPrefab, Vector3.zero, Quaternion.identity, this.transform);
                go.name = "grid_00";
                go.SetActive(false);
                var size = DetermineTileSize(go, out var bounds);
                gridSize = size.z * 0.5f;
            }
            // HexMath.SetHexMapOrigin( new Vector3(1.32f, 0.00f, -2.28f));
            HexMath.SetHexMapOrigin(Vector3.zero);
            HexMath.SetGridSize(gridSize);
        }

        private void Start()
        {
            // var worldPos0  = HexMath.AxialToPixel(0, 0, gridSize);
            // var worldPos1 = HexMath.AxialToPixel(0, 1, gridSize);
            // Log($"worldPos0 -> {worldPos0} ,worldPos1 ->{worldPos1}");
            //
            // //
            // DrawHex(worldPos0,gridSize);
            // DrawHex(worldPos1,gridSize);
            // for (int i = -5; i < 5; i++)
            // {
            //     for (int j = -5; j < 5; j++)
            //     {
            //         Log($"Grid-({i},{j}): {HexMath.AxialToPixel(i,j)}");
            //     }
            // }
            // Log($"World -> -1.29904,0,2.25 -> {HexMath.PixelToAxial(new Vector3(-1.29904f,0,2.25f))}");
            // Log($"World -> 0,0,0 -> {HexMath.PixelToAxial(Vector3.zero)}");
            // Log($"(1,1) -> World -> 3.95, 0.00, 2.28 -> {HexMath.PixelToAxial(new Vector3(3.95f, 0.00f, 2.28f))}");
            // Log($"(1,-1)-> World -> 1.32, 0.00, -2.28 -> {HexMath.PixelToAxial(new Vector3(1.32f, 0.00f, -2.28f))}");
            // Log($"(-1,1)-> World -> -1.32, 0.00, 2.28 -> {HexMath.PixelToAxial(new Vector3(-1.32f, 0.00f, 2.28f))}");
            // Log($"(-1,-1)-> World ->-3.95, 0.00, -2.28 -> {HexMath.PixelToAxial(new Vector3(-3.95f, 0.00f, -2.28f))}");
            
        }

        private void Update()
        {
            // var worldPos0  = HexMath.AxialToPixel(0, 0 );
            // var worldPos1 = HexMath.AxialToPixel(0, 1);
            // var worldPos2 = HexMath.AxialToPixel(0, 2);
            
            //
            // var worldPos10 = HexMath.AxialToPixel(1, 0, gridSize);
            // var worldPos20 = HexMath.AxialToPixel(2, 0, gridSize);
            // var worldPos30 = HexMath.AxialToPixel(3, 0, gridSize);
            //
            // var worldPos11 =  HexMath.AxialToPixel(1, 1, gridSize);
            // var worldPos21 =  HexMath.AxialToPixel(2, 1, gridSize);
            // var worldPos31 =  HexMath.AxialToPixel(3, 1, gridSize);
            //
            // Log(HexMath.PixelToAxial(worldPos0,gridSize));
            // Log(HexMath.PixelToAxial(worldPos1,gridSize));
            // Log(HexMath.PixelToAxial(worldPos2,gridSize));
            // Log(HexMath.PixelToAxial(worldPos10,gridSize));
            // Log(HexMath.PixelToAxial(worldPos20,gridSize));
            // Log(HexMath.PixelToAxial(worldPos30,gridSize));
            // Log(HexMath.PixelToAxial(worldPos11,gridSize));
            // Log(HexMath.PixelToAxial(worldPos21,gridSize));
            // Log(HexMath.PixelToAxial(worldPos31,gridSize));
            //
            //
            //
            // DrawHex(worldPos0,gridSize);
            // DrawHex(worldPos1,gridSize);
            // DrawHex(worldPos2,gridSize);
            //
            // DrawHex(worldPos10,gridSize,Color.green);
            // DrawHex(worldPos20,gridSize,Color.green);
            // DrawHex(worldPos30,gridSize,Color.green);
            //
            // DrawHex(worldPos11,gridSize,Color.yellow);
            // DrawHex(worldPos21,gridSize,Color.yellow);
            // DrawHex(worldPos31,gridSize,Color.yellow);
            //
            // DrawHex(HexMath.AxialToPixel(-1,1,gridSize),gridSize,Color.blue);
            // DrawHex(HexMath.AxialToPixel(-2,1,gridSize),gridSize,Color.blue);
            // DrawHex(HexMath.AxialToPixel(-3,1,gridSize),gridSize,Color.blue);
            // DrawHex(HexMath.AxialToPixel(-4,1,gridSize),gridSize,Color.blue);
            // DrawHex(HexMath.AxialToPixel(-5,1,gridSize),gridSize,Color.blue);
            //
            
        }

        private Vector3 DetermineTileSize(GameObject tileObject,out Bounds bounds)
        {
            var meshFilter = tileObject.GetComponentInChildren<MeshFilter>(true);
            bounds = meshFilter.sharedMesh.bounds;
            Log($"DetermineTileSize ->  {bounds} {bounds.size}");
            // return new Vector3((bounds.extents.x * 2) * 0.75f,0, bounds.extents.y * 2);
            return new Vector3(bounds.size.x, 0,bounds.size.y);

            // return bounds;
        }


#if UNITY_EDITOR
        private void OnDrawGizmosSelected()
        {
            // GameObject[] selectedObjects = Selection.gameObjects;
            // var tile = GameObject.Find("grid_00");
            // var size = DetermineTileSize(tile,out var bounds);
            // Gizmos.color = Color.yellow;
            // Gizmos.DrawWireCube(Vector3.zero, bounds.size * 2);
            // Gizmos.DrawWireCube(Vector3.zero, size);
        }

        private void OnDrawGizmos()
        {
            // if (Application.isPlaying && Application.isEditor)
            // {
            //     Vector3 origin = Vector3.zero;
            //     
            //     if (go)
            //     {
            //         var size = DetermineTileSize(go, out var bounds);
            //         Gizmos.color = Color.yellow;
            //         Gizmos.DrawWireCube(origin, size);
            //         gridSize = size.z * 0.5f;
            //         Gizmos.color = Color.magenta;
            //         DrawHex(origin, gridSize);
            //     }
            // }

            // Gizmos.color = Color.green;
            // Gizmos.DrawWireCube(Vector3.zero, size);
        }
#endif
        // HexGrid
        private void DrawGrid(int q,int r)
        {
            // 00,01
            // Vector3 gridPos = HexMath.AxialToPixel(q, r, gridSize);
        }
        
        private void DrawHex(Vector3 center, float size,Color color = default)
        {
            color =  color == default ? Color.magenta : color;
            
            var angleDelta = gridType == GridType.PointyTop ? 30 : 0;
            var corners = new Vector3[7];
            for (var i = 0; i < 6; i++)
            {
                float angleDeg = 60 * i + angleDelta;
                var angleRad = Mathf.Deg2Rad * angleDeg;
                corners[i] = new Vector3(
                    center.x + size * Mathf.Cos(angleRad),
                    0,
                    center.z + size * Mathf.Sin(angleRad)
                );
            }
            corners[6] = corners[0];
            for (var i = 0; i < 6; i++)
            {
                // Gizmos.DrawLine(corners[i], corners[i + 1]);
                Debug.DrawLine(corners[i],corners[i + 1],color);
            }
        }
        // 画格子
        private void DrawHexGrid(Vector3 origin)
        {
            Log("DrawHexGrid-> {}");
        }
        // MapRoot
        private static void Log(object t)
        {
            Debug.Log($"<color=yellow> MapRoot -> {t} </color>");
        }
    }
}