using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEditor;
using UnityEngine;

public class TextureAutoSet : EditorWindow
{
    
    [MenuItem("Assets/检查图片压缩格式", priority = 0)]
    static void AutoSetASTC()
    {
        string[] guidArray = Selection.assetGUIDs;
        Debug.Log(guidArray.Length);
        foreach (var item in guidArray)
        {
            string selectFloder = AssetDatabase.GUIDToAssetPath(item);
            DirectoryInfo root = new DirectoryInfo(selectFloder);
            GetFloder(root);
        }
    }

    static void GetFloder(DirectoryInfo root)
    {
        GetFile(root);
        //查找子文件夹
        DirectoryInfo[] array = root.GetDirectories();
        foreach (DirectoryInfo item in array)
        {
            GetFloder(item);
        }
    }

    static void GetFile(DirectoryInfo root)
    {
        //DirectoryInfo root = new DirectoryInfo(path);
        FileInfo[] fileDic = root.GetFiles();
        foreach (var file in fileDic)
        {
            //sDebug.Log(file);
            if (file.FullName.EndsWith(".png") || file.FullName.EndsWith(".jpg") || file.FullName.EndsWith(".tga") ||
                file.FullName.EndsWith(".psd") || file.FullName.EndsWith(".PSD") || file.FullName.EndsWith(".exr") ||
                file.FullName.EndsWith(".tif"))
            {
                //Debug.Log("-------------" + file.FullName);
                //Debug.Log(Application.dataPath);
                SetPicFormat(file.FullName.Replace('\\','/').Replace(Application.dataPath.Replace("Assets", ""), ""));
            }
        }
    }

    static void SetPicFormat(string path)
    {
        TextureImporter importer = AssetImporter.GetAtPath(path) as TextureImporter;
        if (importer==null)
        {
            return;
        }
        var tempsss = importer.GetPlatformTextureSettings("Android");
        bool isNeedFormat = false;
        switch (tempsss.format)
        {
            case TextureImporterFormat.ASTC_RGB_4x4:
            case TextureImporterFormat.ASTC_RGB_5x5:
            case TextureImporterFormat.ASTC_RGB_6x6:
            case TextureImporterFormat.ASTC_RGB_8x8:
            case TextureImporterFormat.ASTC_RGB_10x10:
            case TextureImporterFormat.ASTC_RGB_12x12:
            case TextureImporterFormat.ASTC_RGBA_4x4:
            case TextureImporterFormat.ASTC_RGBA_5x5:
            case TextureImporterFormat.ASTC_RGBA_6x6:
            case TextureImporterFormat.ASTC_RGBA_8x8:
            case TextureImporterFormat.ASTC_RGBA_10x10:
            case TextureImporterFormat.ASTC_RGBA_12x12:
                Debug.Log(path);
                isNeedFormat = true;
                break;
            default:
                break;
        }
        if (!isNeedFormat || !tempsss.overridden)
        {
            Debug.Log("设置图片格式"+path);
            tempsss.overridden = true;
            tempsss.format = TextureImporterFormat.ASTC_RGBA_6x6;
            tempsss.maxTextureSize = 1024;
            importer.SetPlatformTextureSettings(tempsss);
            importer.SaveAndReimport();
        }
    }
}