using UnityEngine;

namespace TKS
{
    /// <summary>한글 표시용 폰트와 월드 텍스트(TextMesh) 생성.</summary>
    public static class TextUtil
    {
        static Font font;

        public static Font Font
        {
            get
            {
                if (font == null) font = LoadFont();
                return font;
            }
        }

        static Font LoadFont()
        {
            try
            {
                var f = UnityEngine.Font.CreateDynamicFontFromOSFont(
                    new[] { "Malgun Gothic", "맑은 고딕", "NanumGothic", "Noto Sans CJK KR", "Apple SD Gothic Neo", "Arial" }, 32);
                if (f != null) return f;
            }
            catch (System.Exception e)
            {
                Debug.LogWarning("[TKS] OS 폰트 로드 실패 → 내장 폰트 사용: " + e.Message);
            }
            return Resources.GetBuiltinResource<Font>("LegacyRuntime.ttf");
        }

        /// <summary>월드 좌표에 놓는 텍스트. worldHeight = 글자 높이(월드 단위).</summary>
        public static TextMesh CreateWorldText(Transform parent, string text, float worldHeight, Color color, int sortingOrder,
            TextAnchor anchor = TextAnchor.MiddleCenter)
        {
            var go = new GameObject("Text");
            go.transform.SetParent(parent, false);
            var tm = go.AddComponent<TextMesh>();
            tm.font = Font;
            tm.fontSize = 64;
            tm.characterSize = worldHeight * 10f / 64f;
            tm.text = text;
            tm.color = color;
            tm.anchor = anchor;
            tm.alignment = TextAlignment.Center;
            tm.richText = false;
            var mr = go.GetComponent<MeshRenderer>();
            mr.sharedMaterial = Font.material;
            mr.sortingOrder = sortingOrder;
            return tm;
        }
    }
}