using System.Collections;
using System.Collections.Generic;
using System.Linq;
using TGS;
using UnityEditor;
using UnityEngine;

public class SceneBrushHelper
{
    private const string SCENE_BRUSH_PATH = "Assets/Art/Scene/SceneBrush/Brush/Editor";

    private static List<SceneBrush> _allBrushes;

    public static List<SceneBrush> AllBrushes
    {
        get
        {
            if (_allBrushes == null)
            {
                RefreshAllBrush();
            }

            return _allBrushes;
        }
    }

    public static void RefreshAllBrush()
    {
        _allBrushes = _allBrushes ?? new();
        _allBrushes.Clear();
        var guids = AssetDatabase.FindAssets("t:SceneBrush", new[] { SCENE_BRUSH_PATH });
        foreach (var guid in guids)
        {
            var path = AssetDatabase.GUIDToAssetPath(guid);
            var brush = AssetDatabase.LoadAssetAtPath<SceneBrush>(path);
            _allBrushes.Add(brush);
        }
    }

    public static SceneBrush GetSceneBrushByPrefab(GameObject prefab)
    {
        return AllBrushes.FirstOrDefault(brush => brush.prefab == prefab);
    }

    public static SceneBrush GetSceneBrushByRenderInfo(SceneObjectRenderInfo renderInfo)
    {
        return AllBrushes.FirstOrDefault(brush => brush.renderInfo == renderInfo);
    }

    public static ESceneObjectType BrushType2SceneObjectType(EBrushType brushType)
    {
        return (ESceneObjectType)(int)brushType;
    }

    //[MenuItem("Tools/CreateSurfaceMesh")]
    public static void CreateSurfaceMesh()
    {
        var savedMesh = AssetDatabase.LoadAssetAtPath<Mesh>(SceneSurfaceData.SURFACE_MESH_PATH);
        if (savedMesh != null)
            return;

        var tgs = Object.FindObjectOfType<TerrainGridSystem>();
        if (tgs != null)
        {
            var msf = tgs.GetComponent<MeshFilter>();
            var quad = msf.sharedMesh;
            var mesh = Object.Instantiate(quad);
            EditorUtil.CreateAnUniqueAsset(mesh, SceneSurfaceData.SURFACE_MESH_PATH);
            AssetDatabase.Refresh();
        }
    }
}