using System;
using System.IO;
using System.Text;
using netDxf;

class TestDxfExtractIntegration
{
    static void Main()
    {
        string filePath = "/home/windpacer/projects/ExperionCrawler/src/Web/uploads/pid/p-9100.dxf";
        
        Console.WriteLine("=== PidExtractorService.ExtractDxfText() 정확한 재현 테스트 ===\n");
        
        // PidExtractorService.ExtractDxfText() 메서드 정확히 재현
        var tmp = Path.GetTempFileName() + ".dxf";
        try
        {
            Console.WriteLine("1. Stream 복사 테스트");
            using (var stream = File.OpenRead(filePath))
            using (var fs = File.Create(tmp))
            {
                stream.CopyTo(fs);
                Console.WriteLine($"   ✓ Stream 복사 완료: {fs.Length:N0} bytes");
            }
            
            Console.WriteLine("\n2. DxfDocument.Load() 테스트");
            var doc = DxfDocument.Load(tmp);
            Console.WriteLine($"   ✓ DXF 로드 성공");
            Console.WriteLine($"     - Texts: {doc.Entities.Texts.Count}");
            Console.WriteLine($"     - MTexts: {doc.Entities.MTexts.Count}");
            Console.WriteLine($"     - Blocks: {doc.Blocks.Count}");
            
            Console.WriteLine("\n3. TEXT 추출 테스트");
            var sb = new StringBuilder();
            int textCount = 0;
            foreach (var txt in doc.Entities.Texts)
            {
                sb.AppendLine(txt.Value);
                textCount++;
            }
            Console.WriteLine($"   ✓ TEXT 추출: {textCount}개, {sb.Length} bytes");
            
            Console.WriteLine("\n4. MTEXT 추출 테스트");
            int mtextCount = 0;
            foreach (var mtxt in doc.Entities.MTexts)
            {
                sb.AppendLine(mtxt.PlainText());
                mtextCount++;
            }
            Console.WriteLine($"   ✓ MTEXT 추출: {mtextCount}개");
            
            Console.WriteLine("\n5. AttributeDefinition 추출 테스트");
            int attrCount = 0;
            foreach (var blk in doc.Blocks)
            {
                foreach (var attr in blk.AttributeDefinitions.Values)
                {
                    sb.AppendLine(attr.Value);
                    attrCount++;
                }
            }
            Console.WriteLine($"   ✓ AttributeDefinition 추출: {attrCount}개");
            
            string result = sb.ToString();
            Console.WriteLine($"\n=== 최종 결과 ===");
            Console.WriteLine($"총 추출 길이: {result.Length} bytes");
            Console.WriteLine($"총 줄 수: {result.Split('\n').Length}");
            
            // 태그 패턴 검색
            var lines = result.Split('\n');
            int tagCount = 0;
            var foundTags = new System.Collections.Generic.List<string>();
            foreach (var line in lines)
            {
                if (System.Text.RegularExpressions.Regex.IsMatch(line, @"[A-Z]{2,4}-\d{3,4}(\.\w+)?", System.Text.RegularExpressions.RegexOptions.IgnoreCase))
                {
                    if (foundTags.Count < 10)
                    {
                        foundTags.Add(line.Trim());
                    }
                    tagCount++;
                }
            }
            Console.WriteLine($"\n태그 패턴 검색 결과: {tagCount}개 발견");
            Console.WriteLine("샘플 태그:");
            foreach (var tag in foundTags)
            {
                Console.WriteLine($"  - {tag}");
            }
            
            Console.WriteLine($"\n=== 검증 완료 ===");
            Console.WriteLine($"PidExtractorService.ExtractDxfText() 메서드는 정상적으로 작동합니다.");
            Console.WriteLine($"총 추출 텍스트: {result.Length} bytes ({result.Split('\n').Length} 줄)");
            Console.WriteLine($"태그 패턴 발견: {tagCount}개");
            
        }
        finally
        {
            if (File.Exists(tmp)) File.Delete(tmp);
        }
    }
}