using System.IO;
using Sirenix.OdinInspector;
using UnityEngine;
#if UNITY_EDITOR
using UnityEditor;
#endif

namespace DanieleMarotta.RiversongCodeShowcase
{
    public class IconMaker : MonoBehaviour
    {
#if UNITY_EDITOR
        [SerializeField]
        [PreviewField]
        private RenderTexture _iconTexture;

        [Button(ButtonSizes.Large)]
        [GUIColor("cyan")]
        public void MakeIcon()
        {
            if (!_iconTexture) return;

            var folderPath = "Assets/_Project/GameAssets/UI/Icons";
            if (!Directory.Exists(folderPath)) Directory.CreateDirectory(folderPath);

            var fileName = $"Icon_{GUID.Generate()}.png";

            RenderTexture.active = _iconTexture;

            var temp = new Texture2D(_iconTexture.width, _iconTexture.height, TextureFormat.RGBA32, false);
            temp.ReadPixels(new Rect(0, 0, _iconTexture.width, _iconTexture.height), 0, 0);
            temp.Apply();

            var fullPath = Path.Combine(folderPath, fileName);
            File.WriteAllBytes(fullPath, temp.EncodeToPNG());

            AssetDatabase.Refresh();

            var importer = (TextureImporter)AssetImporter.GetAtPath(fullPath);
            importer.textureType = TextureImporterType.Sprite;
            importer.spriteImportMode = SpriteImportMode.Single;
            importer.maxTextureSize = 256;
            importer.mipmapEnabled = true;
            importer.SaveAndReimport();
        }
#endif
    }
}