package parsing update

src/LiquidCode.Tester.Worker/Services/PackageParserService.cs

@@ -41,20 +41,22 @@ public class PackageParserService : IPackageParserService
             using var archive = new ZipArchive(packageStream, ZipArchiveMode.Read);
             archive.ExtractToDirectory(workingDirectory);
 
-            // Check if this is a Polygon package (search for problem.xml)
+            // Search for problem.xml (Polygon package format is required)
             var problemXmlPath = Directory.EnumerateFiles(workingDirectory, "problem.xml", SearchOption.AllDirectories)
                 .FirstOrDefault();
 
-            if (!string.IsNullOrEmpty(problemXmlPath))
+            if (string.IsNullOrEmpty(problemXmlPath))
             {
-                var packageRoot = Path.GetDirectoryName(problemXmlPath)!;
-                _logger.LogInformation("Detected Polygon package format (problem.xml found at {ProblemXml})", problemXmlPath);
-                return await ParsePolygonPackageAsync(packageRoot, problemXmlPath, workingDirectory);
+                _logger.LogError("problem.xml not found in package. Only Polygon format is supported.");
+                throw new InvalidOperationException(
+                    "Invalid package format: problem.xml not found. " +
+                    "Only Polygon package format is supported. " +
+                    "Please ensure your package contains a problem.xml file.");
             }
 
-            // Fall back to legacy format (.in/.out files)
-            _logger.LogInformation("Using legacy package format (.in/.out files)");
-            return await ParseLegacyPackage(workingDirectory);
+            var packageRoot = Path.GetDirectoryName(problemXmlPath)!;
+            _logger.LogInformation("Polygon package detected (problem.xml found at {ProblemXml})", problemXmlPath);
+            return await ParsePolygonPackageAsync(packageRoot, problemXmlPath, workingDirectory);
         }
         catch (Exception ex)
         {
@@ -69,8 +71,18 @@ public class PackageParserService : IPackageParserService
 
         if (descriptor == null)
         {
-            _logger.LogWarning("Failed to parse problem.xml, falling back to legacy format");
-            return await ParseLegacyPackage(packageRoot, extractionRoot);
+            _logger.LogError("Failed to parse problem.xml");
+            throw new InvalidOperationException(
+                "Failed to parse problem.xml. The Polygon package format may be corrupted or invalid.");
+        }
+
+        // Check for interactive problems
+        if (descriptor.Interactor != null)
+        {
+            _logger.LogError("Interactive problem detected: {ShortName}", descriptor.ShortName);
+            throw new NotSupportedException(
+                "Interactive problems are not currently supported. " +
+                "The problem package contains an interactor, which is used for interactive tasks.");
         }
 
         var package = new ProblemPackage
@@ -99,8 +111,10 @@ public class PackageParserService : IPackageParserService
 
         if (testIndices.Count == 0)
         {
-            _logger.LogWarning("No test definitions discovered in problem.xml; falling back to filesystem scan");
-            return await ParseLegacyPackage(packageRoot, extractionRoot);
+            _logger.LogError("No test definitions found in problem.xml");
+            throw new InvalidOperationException(
+                "No test definitions found in problem.xml. " +
+                "The Polygon package must define tests in the problem.xml file.");
         }
 
         var inputs = new List<(int index, string inputPath)>();
@@ -195,60 +209,6 @@ public class PackageParserService : IPackageParserService
         return package;
     }
 
-    private async Task<ProblemPackage> ParseLegacyPackage(string workingDirectory, string? extractionRoot = null)
-    {
-        var package = new ProblemPackage
-        {
-            WorkingDirectory = workingDirectory,
-            ExtractionRoot = extractionRoot ?? workingDirectory
-        };
-
-        // Find tests directory
-        var testsDir = Path.Combine(workingDirectory, "tests");
-        if (!Directory.Exists(testsDir))
-        {
-            _logger.LogWarning("Tests directory not found, searching for test files in root");
-            testsDir = workingDirectory;
-        }
-
-        // Parse test cases
-        var inputFiles = Directory.GetFiles(testsDir, "*", SearchOption.AllDirectories)
-            .Where(f => Path.GetFileName(f).EndsWith(".in") || Path.GetFileName(f).Contains("input"))
-            .OrderBy(f => f)
-            .ToList();
-
-        for (int i = 0; i < inputFiles.Count; i++)
-        {
-            var inputFile = inputFiles[i];
-            var outputFile = FindCorrespondingOutputFile(inputFile);
-
-            if (outputFile == null)
-            {
-                _logger.LogWarning("No output file found for input {InputFile}", inputFile);
-                continue;
-            }
-
-            package.TestCases.Add(new TestCase
-            {
-                Number = package.TestCases.Count + 1,
-                InputFilePath = inputFile,
-                OutputFilePath = outputFile,
-                TimeLimit = package.DefaultTimeLimit,
-                MemoryLimit = package.DefaultMemoryLimit
-            });
-        }
-
-        // Look for and compile checker
-        package.CheckerPath = await FindAndCompileCheckerAsync(workingDirectory);
-
-        if (package.TestCases.Count == 0)
-        {
-            _logger.LogWarning("No test cases found! Check package structure. Expected .in/.out files in tests directory or root");
-        }
-
-        _logger.LogInformation("Parsed legacy package with {TestCount} tests", package.TestCases.Count);
-        return package;
-    }
 
     private async Task<Dictionary<string, string>> CompilePolygonExecutablesAsync(
         PolygonProblemDescriptor descriptor,
@@ -691,36 +651,6 @@ public class PackageParserService : IPackageParserService
         return null;
     }
 
-    private string? FindCorrespondingOutputFile(string inputFile)
-    {
-        var directory = Path.GetDirectoryName(inputFile)!;
-        var fileName = Path.GetFileNameWithoutExtension(inputFile);
-        var extension = Path.GetExtension(inputFile);
-
-        // Try various output file naming patterns
-        var patterns = new[]
-        {
-            fileName.Replace("input", "output") + ".out",
-            fileName.Replace("input", "output") + ".a",
-            fileName.Replace("input", "answer") + ".out",
-            fileName.Replace("input", "answer") + ".a",
-            fileName + ".out",
-            fileName + ".a",
-            fileName.Replace(".in", ".out"),
-            fileName.Replace(".in", ".a")
-        };
-
-        foreach (var pattern in patterns)
-        {
-            var candidate = Path.Combine(directory, pattern);
-            if (File.Exists(candidate))
-            {
-                return candidate;
-            }
-        }
-
-        return null;
-    }
 
     private async Task<string?> FindAndCompileCheckerAsync(string workingDirectory)
     {

src/LiquidCode.Tester.Worker/Services/PolygonProblemXmlParser.cs

@@ -210,6 +210,21 @@ public class PolygonProblemXmlParser
                     }
                 }
 
+                var interactorElement = assets.Element("interactor");
+                if (interactorElement != null)
+                {
+                    var interactorSource = interactorElement.Element("source");
+                    if (interactorSource != null)
+                    {
+                        descriptor.Interactor = new PolygonInteractorDescriptor
+                        {
+                            SourcePath = interactorSource.Attribute("path")?.Value ?? string.Empty,
+                            Type = interactorSource.Attribute("type")?.Value,
+                            BinaryPath = interactorElement.Element("binary")?.Attribute("path")?.Value
+                        };
+                    }
+                }
+
                 var validatorsSection = assets.Element("validators");
                 if (validatorsSection != null)
                 {
@@ -264,6 +279,7 @@ public class PolygonProblemDescriptor
     public List<PolygonTestDefinition> Tests { get; } = new();
     public List<PolygonExecutableDescriptor> Executables { get; } = new();
     public PolygonCheckerDescriptor? Checker { get; set; }
+    public PolygonInteractorDescriptor? Interactor { get; set; }
     public List<PolygonValidatorDescriptor> Validators { get; } = new();
 }
 
@@ -311,6 +327,16 @@ public class PolygonCheckerDescriptor
     public string? Type { get; set; }
 }
 
+/// <summary>
+/// Represents interactor information declared in problem.xml
+/// </summary>
+public class PolygonInteractorDescriptor
+{
+    public string SourcePath { get; set; } = string.Empty;
+    public string? BinaryPath { get; set; }
+    public string? Type { get; set; }
+}
+
 /// <summary>
 /// Represents validator information declared in problem.xml
 /// </summary>