using System.Collections.Generic;
using System.Linq;
using TMPro;
using UnityEngine;

namespace Superlazy.UI
{
    public static class SLUIUtil
    {
        private static Dictionary<string, TMP_FontAsset> fonts;// = new Dictionary<string, TMP_FontAsset>();
        private static Dictionary<string, Dictionary<string, Material>> fontMaterials;// = new Dictionary<string, Dictionary<string, Material>>();

        public static void UpdateFont(TextMeshProUGUI text)
        {
            if (InitFont() == false) return;

            var keys = SLSystem.Data["FontMaterials"];
            var lang = SLGame.Session["Option"]["Language"];
            var language = SLSystem.Data["Languages"][lang.ToString()];

            if (language["Font"] == false) return; // TODO: 폰트 없으면 별도 세팅 안하는것으로?

            // 폰트가 없거나 Material 없는 부분 예외처리가 필요할려나?
            var font = fonts[language["Font"]];
            if (text.font != font)
            {
                text.font = font;

                var materialName = text.fontSharedMaterial.name;
                if (keys.Where(e => materialName.Contains(e)).Any())
                {
                    text.fontSharedMaterial = fontMaterials[language["Font"]][keys.Where(e => materialName.Contains(e)).FirstOrDefault()];
                }
                else
                {
                    text.fontSharedMaterial = font.material;
                }
            }
        }

        private static bool InitFont()
        {
            if (fonts != null) return true;

            var languages = SLSystem.Data["Languages"];

            var allfontMaterials = SLResources.LoadAll<Material>("Fonts");
            var fontMaterialKeys = SLSystem.Data["FontMaterials"];

            fonts = new Dictionary<string, TMP_FontAsset>();
            fontMaterials = new Dictionary<string, Dictionary<string, Material>>();
            foreach (var lang in languages)
            {
                if (lang["Font"] == false) continue; // TODO: 언어옵션에 폰트 세팅 안하면?

                string fontPath = lang["Font"];

                if (fonts.ContainsKey(fontPath)) continue;

                var font = SLResources.Load<TMP_FontAsset>(fontPath);
                fonts.Add(fontPath, font);

                var fontMaterial = new Dictionary<string, Material>();
                var fontName = fontPath.Split('/').Last();
                foreach (var fontMaterialKey in fontMaterialKeys)
                {
                    var material = allfontMaterials.Where(e => e.name.Contains(fontPath) && e.name.Contains(fontMaterialKey)).FirstOrDefault();
                    if (material != null)
                    {
                        fontMaterial.Add(fontMaterialKey, material);
                    }
                }
                fontMaterials.Add(fontPath, fontMaterial);
            }

            return true;
        }
    }
}