🔧 Troubleshooting - TuskLang for C# - "Solve Any Problem"

Master the art of debugging TuskLang - From simple syntax errors to complex production issues!

Every technology has its challenges, and TuskLang is no exception. Learn how to diagnose, debug, and resolve common issues that you'll encounter in development and production environments.

🎯 Troubleshooting Philosophy

"We Don't Bow to Any King"

- Systematic approach - Methodical problem-solving techniques - Root cause analysis - Find the real source of issues - Prevention strategies - Learn from problems to prevent future issues - Documentation - Document solutions for team knowledge - Continuous improvement - Use issues to improve your system

Why Troubleshooting Skills Matter?

- Faster resolution - Solve problems quickly and efficiently - Reduced downtime - Minimize service interruptions - Better understanding - Deep knowledge of how TuskLang works - Team productivity - Help others solve similar problems - System reliability - Build more robust configurations

🔍 Diagnostic Tools

1. TuskLang CLI Debugging

Validate configuration syntax
tusk validate config/app.tsk
Parse with verbose output
tusk parse config/app.tsk --verbose
Test configuration with sample data
tusk test config/app.tsk --data test-data.json
Profile configuration performance
tusk profile config/app.tsk --iterations 1000
Debug specific operators
tusk debug config/app.tsk --operator @query

2. C# Debugging Tools

// DebugConfigurationService.cs
using TuskLang;
using Microsoft.Extensions.Logging;
public class DebugConfigurationService
{
    private readonly TuskLang _parser;
    private readonly ILogger<DebugConfigurationService> _logger;
    
    public DebugConfigurationService(ILogger<DebugConfigurationService> logger)
    {
        _parser = new TuskLang();
        _logger = logger;
        
        // Enable verbose logging
        _parser.EnableVerboseLogging();
    }
    
    public async Task<DebugResult> DebugConfigurationAsync(string filePath)
    {
        var result = new DebugResult
        {
            FilePath = filePath,
            StartTime = DateTime.UtcNow
        };
        
        try
        {
            _logger.LogInformation("Starting configuration debug for {FilePath}", filePath);
            
            // Step 1: File validation
            result.FileExists = File.Exists(filePath);
            if (!result.FileExists)
            {
                result.Errors.Add("Configuration file does not exist");
                return result;
            }
            
            result.FileSize = new FileInfo(filePath).Length;
            result.FileContent = await File.ReadAllTextAsync(filePath);
            
            // Step 2: Syntax validation
            var validationResult = _parser.ValidateWithDetails(filePath);
            result.IsValid = validationResult.IsValid;
            result.ValidationErrors = validationResult.Errors.Select(e => e.Message).ToList();
            
            if (!result.IsValid)
            {
                _logger.LogError("Configuration validation failed: {Errors}", 
                    string.Join(", ", result.ValidationErrors));
                return result;
            }
            
            // Step 3: Parse configuration
            var stopwatch = Stopwatch.StartNew();
            var config = _parser.ParseFile(filePath);
            stopwatch.Stop();
            
            result.ParseTime = stopwatch.ElapsedMilliseconds;
            result.Configuration = config;
            
            // Step 4: Analyze configuration
            result.Sections = config.Keys.ToList();
            result.TotalKeys = CountKeys(config);
            
            _logger.LogInformation("Configuration debug completed successfully in {Duration}ms", 
                result.ParseTime);
            
            return result;
        }
        catch (Exception ex)
        {
            result.Errors.Add($"Unexpected error: {ex.Message}");
            result.Exception = ex;
            
            _logger.LogError(ex, "Configuration debug failed");
            return result;
        }
        finally
        {
            result.EndTime = DateTime.UtcNow;
            result.Duration = result.EndTime - result.StartTime;
        }
    }
    
    private int CountKeys(Dictionary<string, object> config)
    {
        int count = 0;
        foreach (var kvp in config)
        {
            count++;
            if (kvp.Value is Dictionary<string, object> nested)
            {
                count += CountKeys(nested);
            }
        }
        return count;
    }
}
public class DebugResult
{
    public string FilePath { get; set; } = string.Empty;
    public DateTime StartTime { get; set; }
    public DateTime EndTime { get; set; }
    public TimeSpan Duration => EndTime - StartTime;
    
    public bool FileExists { get; set; }
    public long FileSize { get; set; }
    public string FileContent { get; set; } = string.Empty;
    
    public bool IsValid { get; set; }
    public List<string> ValidationErrors { get; set; } = new List<string>();
    
    public long ParseTime { get; set; }
    public Dictionary<string, object>? Configuration { get; set; }
    
    public List<string> Sections { get; set; } = new List<string>();
    public int TotalKeys { get; set; }
    
    public List<string> Errors { get; set; } = new List<string>();
    public Exception? Exception { get; set; }
}

3. Performance Profiling

// PerformanceProfiler.cs
using TuskLang;
using System.Diagnostics;
public class PerformanceProfiler
{
    private readonly TuskLang _parser;
    private readonly ILogger<PerformanceProfiler> _logger;
    
    public PerformanceProfiler(ILogger<PerformanceProfiler> logger)
    {
        _parser = new TuskLang();
        _logger = logger;
    }
    
    public async Task<PerformanceProfile> ProfileConfigurationAsync(string filePath, int iterations = 100)
    {
        var profile = new PerformanceProfile
        {
            FilePath = filePath,
            Iterations = iterations
        };
        
        var times = new List<long>();
        
        _logger.LogInformation("Starting performance profiling for {FilePath} with {Iterations} iterations", 
            filePath, iterations);
        
        for (int i = 0; i < iterations; i++)
        {
            var stopwatch = Stopwatch.StartNew();
            
            try
            {
                var config = _parser.ParseFile(filePath);
                stopwatch.Stop();
                times.Add(stopwatch.ElapsedMilliseconds);
            }
            catch (Exception ex)
            {
                stopwatch.Stop();
                profile.Errors.Add($"Iteration {i}: {ex.Message}");
            }
        }
        
        if (times.Count > 0)
        {
            profile.AverageTime = times.Average();
            profile.MinTime = times.Min();
            profile.MaxTime = times.Max();
            profile.MedianTime = CalculateMedian(times);
            profile.P95Time = CalculatePercentile(times, 95);
            profile.P99Time = CalculatePercentile(times, 99);
        }
        
        _logger.LogInformation("Performance profiling completed. Average: {Average}ms, P95: {P95}ms", 
            profile.AverageTime, profile.P95Time);
        
        return profile;
    }
    
    private double CalculateMedian(List<long> values)
    {
        var sorted = values.OrderBy(x => x).ToList();
        int count = sorted.Count;
        
        if (count == 0) return 0;
        if (count % 2 == 0)
        {
            return (sorted[count / 2 - 1] + sorted[count / 2]) / 2.0;
        }
        return sorted[count / 2];
    }
    
    private double CalculatePercentile(List<long> values, int percentile)
    {
        var sorted = values.OrderBy(x => x).ToList();
        int index = (int)Math.Ceiling(percentile / 100.0 * sorted.Count) - 1;
        return sorted[Math.Max(0, index)];
    }
}
public class PerformanceProfile
{
    public string FilePath { get; set; } = string.Empty;
    public int Iterations { get; set; }
    
    public double AverageTime { get; set; }
    public long MinTime { get; set; }
    public long MaxTime { get; set; }
    public double MedianTime { get; set; }
    public double P95Time { get; set; }
    public double P99Time { get; set; }
    
    public List<string> Errors { get; set; } = new List<string>();
}

🚨 Common Issues and Solutions

1. Syntax Errors

#### Problem: Invalid TSK Syntax

Problem: Missing closing brace
[app]
name: "MyApp"
[database
host: "localhost"  # Missing closing brace

Solution:

Solution: Proper syntax
[app]
name: "MyApp"
[database]
host: "localhost"

#### Problem: Invalid @ Operator Usage

Problem: Invalid @ operator
[config]
value: @invalid_operator("test")

Solution:

Solution: Use valid @ operator
[config]
value: @env("TEST_VAR", "default")

#### C# Error Handling:

public class SyntaxErrorHandler
{
    private readonly TuskLang _parser;
    private readonly ILogger<SyntaxErrorHandler> _logger;
    
    public SyntaxErrorHandler(ILogger<SyntaxErrorHandler> logger)
    {
        _parser = new TuskLang();
        _logger = logger;
    }
    
    public async Task<SyntaxValidationResult> ValidateSyntaxAsync(string filePath)
    {
        var result = new SyntaxValidationResult
        {
            FilePath = filePath
        };
        
        try
        {
            // Validate syntax
            var validationResult = _parser.ValidateWithDetails(filePath);
            result.IsValid = validationResult.IsValid;
            result.Errors = validationResult.Errors;
            
            if (!result.IsValid)
            {
                _logger.LogError("Syntax validation failed for {FilePath}: {Errors}", 
                    filePath, string.Join(", ", validationResult.Errors.Select(e => e.Message)));
            }
            
            return result;
        }
        catch (Exception ex)
        {
            result.Errors.Add(new ValidationError
            {
                Line = 0,
                Column = 0,
                Message = $"Unexpected error: {ex.Message}"
            });
            
            _logger.LogError(ex, "Syntax validation failed for {FilePath}", filePath);
            return result;
        }
    }
    
    public async Task<string> AutoFixSyntaxAsync(string filePath)
    {
        var content = await File.ReadAllTextAsync(filePath);
        
        // Common auto-fixes
        content = content
            .Replace("[database\n", "[database]\n")  // Fix missing closing brace
            .Replace("@invalid_operator", "@env")    // Fix invalid operator
            .Replace(": \"value\"\n[", ":\n[")       // Fix missing newline
            .Replace(":value", ": value");           // Fix missing space
        
        var tempPath = filePath + ".fixed";
        await File.WriteAllTextAsync(tempPath, content);
        
        _logger.LogInformation("Auto-fixed syntax and saved to {TempPath}", tempPath);
        return tempPath;
    }
}
public class SyntaxValidationResult
{
    public string FilePath { get; set; } = string.Empty;
    public bool IsValid { get; set; }
    public List<ValidationError> Errors { get; set; } = new List<ValidationError>();
}
public class ValidationError
{
    public int Line { get; set; }
    public int Column { get; set; }
    public string Message { get; set; } = string.Empty;
}

2. Database Connection Issues

#### Problem: Database Connection Failed

Problem: Database connection fails
[database]
host: "invalid-host"
port: 5432
name: "myapp"
user: "postgres"
password: "wrong-password"

Solution:

Solution: Proper database configuration with fallbacks
[database]
host: @env("DB_HOST", "localhost")
port: @env("DB_PORT", "5432")
name: @env("DB_NAME", "myapp")
user: @env("DB_USER", "postgres")
password: @env.secure("DB_PASSWORD")
ssl: @if($environment == "production", true, false)

#### C# Database Troubleshooting:

public class DatabaseTroubleshooter
{
    private readonly ILogger<DatabaseTroubleshooter> _logger;
    
    public DatabaseTroubleshooter(ILogger<DatabaseTroubleshooter> logger)
    {
        _logger = logger;
    }
    
    public async Task<DatabaseDiagnosticResult> DiagnoseDatabaseAsync(string connectionString)
    {
        var result = new DatabaseDiagnosticResult
        {
            ConnectionString = connectionString,
            StartTime = DateTime.UtcNow
        };
        
        try
        {
            // Test connection
            using var connection = new NpgsqlConnection(connectionString);
            await connection.OpenAsync();
            result.CanConnect = true;
            
            // Test basic query
            using var command = new NpgsqlCommand("SELECT 1", connection);
            var queryResult = await command.ExecuteScalarAsync();
            result.CanQuery = queryResult != null;
            
            // Test specific tables
            result.Tables = await GetTablesAsync(connection);
            
            // Test performance
            var stopwatch = Stopwatch.StartNew();
            for (int i = 0; i < 10; i++)
            {
                using var perfCommand = new NpgsqlCommand("SELECT COUNT(*) FROM information_schema.tables", connection);
                await perfCommand.ExecuteScalarAsync();
            }
            stopwatch.Stop();
            result.AverageQueryTime = stopwatch.ElapsedMilliseconds / 10.0;
            
            _logger.LogInformation("Database diagnostic completed successfully");
        }
        catch (Exception ex)
        {
            result.Errors.Add($"Database connection failed: {ex.Message}");
            _logger.LogError(ex, "Database diagnostic failed");
        }
        finally
        {
            result.EndTime = DateTime.UtcNow;
            result.Duration = result.EndTime - result.StartTime;
        }
        
        return result;
    }
    
    private async Task<List<string>> GetTablesAsync(NpgsqlConnection connection)
    {
        var tables = new List<string>();
        
        using var command = new NpgsqlCommand(@"
            SELECT table_name 
            FROM information_schema.tables 
            WHERE table_schema = 'public'
            ORDER BY table_name", connection);
        
        using var reader = await command.ExecuteReaderAsync();
        while (await reader.ReadAsync())
        {
            tables.Add(reader.GetString(0));
        }
        
        return tables;
    }
    
    public async Task<bool> TestConfigurationAsync(Dictionary<string, object> config)
    {
        try
        {
            var database = config["database"] as Dictionary<string, object>;
            if (database == null)
            {
                _logger.LogError("Database configuration section not found");
                return false;
            }
            
            var connectionString = BuildConnectionString(database);
            var diagnostic = await DiagnoseDatabaseAsync(connectionString);
            
            return diagnostic.CanConnect && diagnostic.CanQuery;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Database configuration test failed");
            return false;
        }
    }
    
    private string BuildConnectionString(Dictionary<string, object> database)
    {
        var host = database["host"]?.ToString() ?? "localhost";
        var port = database["port"]?.ToString() ?? "5432";
        var name = database["name"]?.ToString() ?? "postgres";
        var user = database["user"]?.ToString() ?? "postgres";
        var password = database["password"]?.ToString() ?? "";
        
        return $"Host={host};Port={port};Database={name};Username={user};Password={password}";
    }
}
public class DatabaseDiagnosticResult
{
    public string ConnectionString { get; set; } = string.Empty;
    public DateTime StartTime { get; set; }
    public DateTime EndTime { get; set; }
    public TimeSpan Duration => EndTime - StartTime;
    
    public bool CanConnect { get; set; }
    public bool CanQuery { get; set; }
    public List<string> Tables { get; set; } = new List<string>();
    public double AverageQueryTime { get; set; }
    
    public List<string> Errors { get; set; } = new List<string>();
}

3. Environment Variable Issues

#### Problem: Missing Environment Variables

Problem: Environment variable not set
[config]
api_key: @env("API_KEY")  # API_KEY not set

Solution:

Solution: Provide default values
[config]
api_key: @env("API_KEY", "")  # Empty string default
debug_mode: @env("DEBUG", "false")  # Boolean default
port: @env("PORT", "8080")  # Numeric default

#### C# Environment Variable Troubleshooting:

public class EnvironmentVariableTroubleshooter
{
    private readonly ILogger<EnvironmentVariableTroubleshooter> _logger;
    
    public EnvironmentVariableTroubleshooter(ILogger<EnvironmentVariableTroubleshooter> logger)
    {
        _logger = logger;
    }
    
    public async Task<EnvironmentDiagnosticResult> DiagnoseEnvironmentAsync(string[] requiredVariables)
    {
        var result = new EnvironmentDiagnosticResult
        {
            StartTime = DateTime.UtcNow
        };
        
        foreach (var variable in requiredVariables)
        {
            var value = Environment.GetEnvironmentVariable(variable);
            var status = new EnvironmentVariableStatus
            {
                Name = variable,
                IsSet = !string.IsNullOrEmpty(value),
                Value = value ?? "NOT_SET",
                IsSecure = IsSecureVariable(variable)
            };
            
            result.Variables.Add(status);
            
            if (!status.IsSet)
            {
                result.MissingVariables.Add(variable);
                _logger.LogWarning("Environment variable {Variable} is not set", variable);
            }
        }
        
        result.EndTime = DateTime.UtcNow;
        result.Duration = result.EndTime - result.StartTime;
        
        return result;
    }
    
    private bool IsSecureVariable(string variableName)
    {
        var securePatterns = new[] { "PASSWORD", "SECRET", "KEY", "TOKEN", "CREDENTIAL" };
        return securePatterns.Any(pattern => variableName.ToUpper().Contains(pattern));
    }
    
    public async Task<bool> ValidateConfigurationAsync(Dictionary<string, object> config)
    {
        var requiredVariables = ExtractRequiredVariables(config);
        var diagnostic = await DiagnoseEnvironmentAsync(requiredVariables);
        
        if (diagnostic.MissingVariables.Any())
        {
            _logger.LogError("Missing required environment variables: {Variables}", 
                string.Join(", ", diagnostic.MissingVariables));
            return false;
        }
        
        return true;
    }
    
    private string[] ExtractRequiredVariables(Dictionary<string, object> config)
    {
        var variables = new HashSet<string>();
        ExtractVariablesRecursive(config, variables);
        return variables.ToArray();
    }
    
    private void ExtractVariablesRecursive(Dictionary<string, object> config, HashSet<string> variables)
    {
        foreach (var kvp in config)
        {
            if (kvp.Value is string strValue)
            {
                // Extract @env() calls
                var matches = Regex.Matches(strValue, @"@env\(""([^""]+)""");
                foreach (Match match in matches)
                {
                    variables.Add(match.Groups[1].Value);
                }
            }
            else if (kvp.Value is Dictionary<string, object> nested)
            {
                ExtractVariablesRecursive(nested, variables);
            }
        }
    }
}
public class EnvironmentDiagnosticResult
{
    public DateTime StartTime { get; set; }
    public DateTime EndTime { get; set; }
    public TimeSpan Duration => EndTime - StartTime;
    
    public List<EnvironmentVariableStatus> Variables { get; set; } = new List<EnvironmentVariableStatus>();
    public List<string> MissingVariables { get; set; } = new List<string>();
}
public class EnvironmentVariableStatus
{
    public string Name { get; set; } = string.Empty;
    public bool IsSet { get; set; }
    public string Value { get; set; } = string.Empty;
    public bool IsSecure { get; set; }
}

4. Performance Issues

#### Problem: Slow Configuration Parsing

Problem: Expensive operations without caching
[performance]
user_count: @query("SELECT COUNT(*) FROM users")  # No caching
api_data: @http("GET", "https://api.example.com/data")  # No caching

Solution:

Solution: Use caching for expensive operations
[performance]
user_count: @cache("5m", @query("SELECT COUNT(*) FROM users"))
api_data: @cache("30s", @http("GET", "https://api.example.com/data"))
ml_prediction: @cache("1m", @predict("server_load", @metrics("cpu_usage", 75)))

#### C# Performance Troubleshooting:

public class PerformanceTroubleshooter
{
    private readonly ILogger<PerformanceTroubleshooter> _logger;
    private readonly IMetricsCollector _metricsCollector;
    
    public PerformanceTroubleshooter(
        ILogger<PerformanceTroubleshooter> logger,
        IMetricsCollector metricsCollector)
    {
        _logger = logger;
        _metricsCollector = metricsCollector;
    }
    
    public async Task<PerformanceDiagnosticResult> DiagnosePerformanceAsync(string filePath)
    {
        var result = new PerformanceDiagnosticResult
        {
            FilePath = filePath,
            StartTime = DateTime.UtcNow
        };
        
        try
        {
            var parser = new TuskLang();
            
            // Profile parsing performance
            var parseTimes = new List<long>();
            for (int i = 0; i < 10; i++)
            {
                var stopwatch = Stopwatch.StartNew();
                var config = parser.ParseFile(filePath);
                stopwatch.Stop();
                parseTimes.Add(stopwatch.ElapsedMilliseconds);
            }
            
            result.AverageParseTime = parseTimes.Average();
            result.MinParseTime = parseTimes.Min();
            result.MaxParseTime = parseTimes.Max();
            result.ParseTimeVariance = CalculateVariance(parseTimes);
            
            // Analyze configuration complexity
            var config = parser.ParseFile(filePath);
            result.Sections = config.Keys.Count;
            result.TotalKeys = CountKeys(config);
            result.OperatorCount = CountOperators(await File.ReadAllTextAsync(filePath));
            
            // Check for performance issues
            result.Issues = await IdentifyPerformanceIssuesAsync(filePath);
            
            _logger.LogInformation("Performance diagnostic completed. Average parse time: {Time}ms", 
                result.AverageParseTime);
        }
        catch (Exception ex)
        {
            result.Errors.Add($"Performance diagnostic failed: {ex.Message}");
            _logger.LogError(ex, "Performance diagnostic failed");
        }
        finally
        {
            result.EndTime = DateTime.UtcNow;
            result.Duration = result.EndTime - result.StartTime;
        }
        
        return result;
    }
    
    private double CalculateVariance(List<long> values)
    {
        if (values.Count == 0) return 0;
        
        var mean = values.Average();
        var variance = values.Select(x => Math.Pow(x - mean, 2)).Average();
        return variance;
    }
    
    private int CountKeys(Dictionary<string, object> config)
    {
        int count = 0;
        foreach (var kvp in config)
        {
            count++;
            if (kvp.Value is Dictionary<string, object> nested)
            {
                count += CountKeys(nested);
            }
        }
        return count;
    }
    
    private int CountOperators(string content)
    {
        var operatorPatterns = new[] { "@env", "@query", "@http", "@cache", "@predict", "@learn" };
        return operatorPatterns.Sum(pattern => Regex.Matches(content, pattern).Count);
    }
    
    private async Task<List<string>> IdentifyPerformanceIssuesAsync(string filePath)
    {
        var issues = new List<string>();
        var content = await File.ReadAllTextAsync(filePath);
        
        // Check for uncached expensive operations
        if (Regex.IsMatch(content, @"@query\([^)]+\)") && !Regex.IsMatch(content, @"@cache\([^)]+, @query"))
        {
            issues.Add("Database queries without caching detected");
        }
        
        if (Regex.IsMatch(content, @"@http\([^)]+\)") && !Regex.IsMatch(content, @"@cache\([^)]+, @http"))
        {
            issues.Add("HTTP requests without caching detected");
        }
        
        // Check for nested expensive operations
        if (Regex.IsMatch(content, @"@cache\([^)]+, @cache\("))
        {
            issues.Add("Nested caching operations detected");
        }
        
        // Check for too many operators
        var operatorCount = CountOperators(content);
        if (operatorCount > 50)
        {
            issues.Add($"Too many operators ({operatorCount}) - consider simplifying");
        }
        
        return issues;
    }
}
public class PerformanceDiagnosticResult
{
    public string FilePath { get; set; } = string.Empty;
    public DateTime StartTime { get; set; }
    public DateTime EndTime { get; set; }
    public TimeSpan Duration => EndTime - StartTime;
    
    public double AverageParseTime { get; set; }
    public long MinParseTime { get; set; }
    public long MaxParseTime { get; set; }
    public double ParseTimeVariance { get; set; }
    
    public int Sections { get; set; }
    public int TotalKeys { get; set; }
    public int OperatorCount { get; set; }
    
    public List<string> Issues { get; set; } = new List<string>();
    public List<string> Errors { get; set; } = new List<string>();
}

🔧 Advanced Troubleshooting

1. Memory Issues

public class MemoryTroubleshooter
{
    private readonly ILogger<MemoryTroubleshooter> _logger;
    
    public MemoryTroubleshooter(ILogger<MemoryTroubleshooter> logger)
    {
        _logger = logger;
    }
    
    public async Task<MemoryDiagnosticResult> DiagnoseMemoryAsync()
    {
        var result = new MemoryDiagnosticResult
        {
            StartTime = DateTime.UtcNow
        };
        
        // Get memory information
        var process = Process.GetCurrentProcess();
        result.WorkingSet = process.WorkingSet64;
        result.PrivateMemory = process.PrivateMemorySize64;
        result.VirtualMemory = process.VirtualMemorySize64;
        
        // Force garbage collection to get accurate readings
        GC.Collect();
        GC.WaitForPendingFinalizers();
        GC.Collect();
        
        result.WorkingSetAfterGC = process.WorkingSet64;
        result.PrivateMemoryAfterGC = process.PrivateMemorySize64;
        
        // Check for memory leaks
        result.MemoryLeakDetected = result.WorkingSetAfterGC > 100  1024  1024; // 100MB threshold
        
        result.EndTime = DateTime.UtcNow;
        result.Duration = result.EndTime - result.StartTime;
        
        return result;
    }
}
public class MemoryDiagnosticResult
{
    public DateTime StartTime { get; set; }
    public DateTime EndTime { get; set; }
    public TimeSpan Duration => EndTime - StartTime;
    
    public long WorkingSet { get; set; }
    public long PrivateMemory { get; set; }
    public long VirtualMemory { get; set; }
    
    public long WorkingSetAfterGC { get; set; }
    public long PrivateMemoryAfterGC { get; set; }
    
    public bool MemoryLeakDetected { get; set; }
}

2. Network Issues

public class NetworkTroubleshooter
{
    private readonly ILogger<NetworkTroubleshooter> _logger;
    
    public NetworkTroubleshooter(ILogger<NetworkTroubleshooter> logger)
    {
        _logger = logger;
    }
    
    public async Task<NetworkDiagnosticResult> DiagnoseNetworkAsync(string[] endpoints)
    {
        var result = new NetworkDiagnosticResult
        {
            StartTime = DateTime.UtcNow
        };
        
        using var httpClient = new HttpClient();
        httpClient.Timeout = TimeSpan.FromSeconds(10);
        
        foreach (var endpoint in endpoints)
        {
            var endpointResult = new EndpointTestResult
            {
                Endpoint = endpoint
            };
            
            try
            {
                var stopwatch = Stopwatch.StartNew();
                var response = await httpClient.GetAsync(endpoint);
                stopwatch.Stop();
                
                endpointResult.IsReachable = response.IsSuccessStatusCode;
                endpointResult.ResponseTime = stopwatch.ElapsedMilliseconds;
                endpointResult.StatusCode = (int)response.StatusCode;
            }
            catch (Exception ex)
            {
                endpointResult.IsReachable = false;
                endpointResult.Error = ex.Message;
                _logger.LogError(ex, "Network test failed for {Endpoint}", endpoint);
            }
            
            result.Endpoints.Add(endpointResult);
        }
        
        result.EndTime = DateTime.UtcNow;
        result.Duration = result.EndTime - result.StartTime;
        
        return result;
    }
}
public class NetworkDiagnosticResult
{
    public DateTime StartTime { get; set; }
    public DateTime EndTime { get; set; }
    public TimeSpan Duration => EndTime - StartTime;
    
    public List<EndpointTestResult> Endpoints { get; set; } = new List<EndpointTestResult>();
}
public class EndpointTestResult
{
    public string Endpoint { get; set; } = string.Empty;
    public bool IsReachable { get; set; }
    public long ResponseTime { get; set; }
    public int StatusCode { get; set; }
    public string Error { get; set; } = string.Empty;
}

🎯 Troubleshooting Checklist

1. Configuration Issues

- ✅ Check file syntax - Validate TSK syntax - ✅ Verify file path - Ensure file exists and is accessible - ✅ Check permissions - Verify read permissions - ✅ Validate operators - Ensure @ operators are correct

2. Database Issues

- ✅ Test connection - Verify database connectivity - ✅ Check credentials - Validate username/password - ✅ Verify permissions - Ensure database user has required permissions - ✅ Test queries - Validate SQL syntax and performance

3. Environment Issues

- ✅ Check variables - Verify all required environment variables are set - ✅ Validate values - Ensure environment variable values are correct - ✅ Check scope - Verify environment variable scope (user vs system)

4. Performance Issues

- ✅ Profile parsing - Measure configuration parse time - ✅ Check caching - Verify caching is properly configured - ✅ Monitor resources - Check CPU, memory, and network usage - ✅ Analyze queries - Review database query performance

5. Security Issues

- ✅ Validate secrets - Ensure secrets are properly encrypted - ✅ Check permissions - Verify file and database permissions - ✅ Audit access - Review who has access to configuration - ✅ Test encryption - Verify encryption/decryption works

🎉 You're Ready!

You've mastered troubleshooting TuskLang! You can now:

- ✅ Diagnose issues systematically - Use methodical problem-solving - ✅ Use debugging tools - Leverage CLI and C# debugging tools - ✅ Solve common problems - Handle syntax, database, and environment issues - ✅ Optimize performance - Identify and fix performance bottlenecks - ✅ Monitor systems - Track metrics and detect issues early - ✅ Prevent problems - Use best practices to avoid common issues

🔥 What's Next?

Ready to scale and optimize? Explore:

1. Scaling Strategies - Handle massive scale 2. Advanced Patterns - Complex use cases 3. Integration Guides - Third-party integrations

---

"We don't bow to any king" - Your troubleshooting skills, your problem-solving power.

Solve any problem with confidence! 🔧