// WL824_ImportRefSprites.cs — XP Hero 더미 스프라이트 임포터 일괄 설정 (2026-10-09 · 로컬 전용 폴더)
// 실행(반복): unity command run_script --file AgentScripts/WL824_ImportRefSprites.cs --entry WL824_ImportRefSprites.Run --timeout 120
//   메인 스레드 30초 한도 때문에 한 번에 BatchSize 장만 처리하고 "remaining N" 을 돌려준다 → 0 이 될 때까지 반복.
// Sprite(Single) · PPU 100 · 9-slice 테두리 = sprite_borders.csv(원본 m_Border: L,B,R,T) · 밉맵 off · 비압축
using System.IO;
using System.Text;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

public static class WL824_ImportRefSprites
{
    const string Folder = "Assets/WL/UI/RefDummy_XPHero/Resources/XPHeroRef";
    const string Csv = "Assets/WL/UI/RefDummy_XPHero/sprite_borders.csv";
    const int BatchSize = 40;

    static float F(string s) { float v; return float.TryParse(s, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, out v) ? v : 0f; }

    static Dictionary<string, Vector4> LoadBorders()
    {
        var borders = new Dictionary<string, Vector4>();
        if (!File.Exists(Csv)) return borders;
        var lines = File.ReadAllLines(Csv);
        for (int i = 1; i < lines.Length; i++)
        {
            var c = lines[i].Split(',');
            if (c.Length < 11) continue;
            borders[c[0]] = new Vector4(F(c[2]), F(c[3]), F(c[4]), F(c[5]));
        }
        return borders;
    }

    static bool IsDone(TextureImporter imp, Vector4 want)
    {
        if (imp.textureType != TextureImporterType.Sprite) return false;
        if (imp.mipmapEnabled) return false;
        var b = imp.spriteBorder;
        return (b - want).sqrMagnitude < 0.01f;
    }

    public static string Run()
    {
        AssetDatabase.Refresh();   // 새로 복사된 PNG 가 아직 임포트되지 않았으면 importer 가 없다
        var borders = LoadBorders();
        var files = Directory.GetFiles(Folder, "*.png");
        int done = 0, todo = 0, processed = 0, nb = 0;
        var sb = new StringBuilder();
        var pending = new List<string>();
        foreach (var path in files)
        {
            var ap = path.Replace('\\', '/');
            var imp = AssetImporter.GetAtPath(ap) as TextureImporter;
            if (imp == null) { sb.Append("no importer: ").Append(Path.GetFileName(ap)).Append(' '); continue; }
            Vector4 want; if (!borders.TryGetValue(Path.GetFileNameWithoutExtension(ap), out want)) want = Vector4.zero;
            if (IsDone(imp, want)) { done++; continue; }
            todo++;
            if (pending.Count < BatchSize) pending.Add(ap);
        }
        if (pending.Count > 0)
        {
            AssetDatabase.StartAssetEditing();
            try
            {
                foreach (var ap in pending)
                {
                    var imp = AssetImporter.GetAtPath(ap) as TextureImporter;
                    if (imp == null) continue;
                    var key = Path.GetFileNameWithoutExtension(ap);
                    imp.textureType = TextureImporterType.Sprite;
                    imp.spriteImportMode = SpriteImportMode.Single;
                    imp.spritePixelsPerUnit = 100f;
                    imp.mipmapEnabled = false;
                    imp.alphaIsTransparency = true;
                    imp.filterMode = FilterMode.Bilinear;
                    imp.npotScale = TextureImporterNPOTScale.None;
                    imp.textureCompression = TextureImporterCompression.Uncompressed;
                    imp.maxTextureSize = 1024;
                    Vector4 b;
                    if (borders.TryGetValue(key, out b) && (b.x > 0 || b.y > 0 || b.z > 0 || b.w > 0)) { imp.spriteBorder = b; nb++; }
                    else imp.spriteBorder = Vector4.zero;
                    imp.SaveAndReimport();
                    processed++;
                }
            }
            finally { AssetDatabase.StopAssetEditing(); }
        }
        return "files " + files.Length + " · already done " + done + " · processed now " + processed + " (9-slice " + nb + ") · remaining " + (todo - processed) + (sb.Length > 0 ? "\n" + sb : "");
    }
}