// Tesseract.NET SDK: .NET Framework 4.5 ceiling — will not compile on net8.0
// Every project referencing this package is locked below the upgrade line
using Patagames.Ocr;  // Patagames.Ocr targets net45; no netstandard or net8 assembly

public class OcrService
{
    public string ProcessDocument(string imagePath)
    {
        // Synchronous-only — blocks ASP.NET Core request threads
        // Não DI support — must be instantiated manually each time
        using (var api = OcrApi.Create())    // C# 1.0 using statement, 40-100MB load per call
        {
            api.Init(Languages.English);
            return api.GetTextFromImage(imagePath);
        }
        // Project cannot target net6.0, net8.0, or any Linux container base image
    }
}

// Tesseract.NET SDK: .NET Framework 4.5 ceiling — will not compile on net8.0
// Every project referencing this package is locked below the upgrade line
using Patagames.Ocr;  // Patagames.Ocr targets net45; no netstandard or net8 assembly

public class OcrService
{
    public string ProcessDocument(string imagePath)
    {
        // Synchronous-only — blocks ASP.NET Core request threads
        // Não DI support — must be instantiated manually each time
        using (var api = OcrApi.Create())    // C# 1.0 using statement, 40-100MB load per call
        {
            api.Init(Languages.English);
            return api.GetTextFromImage(imagePath);
        }
        // Project cannot target net6.0, net8.0, or any Linux container base image
    }
}

// IronOCR: same logic, any runtime from net462 to net9.0, any platform
using IronOcr;  // Single NuGet, supports .NET Framework 4.6.2+, .NET 5/6/7/8/9

// Register once as singleton — load language model once, share across all requests
// Call ReadAsync() in ASP.NET Core for non-blocking operation
var ocr = new IronTesseract();
var result = await ocr.ReadAsync("document.jpg");  // Async-first, no thread blocking
Console.WriteLine(result.Text);

// IronOCR: same logic, any runtime from net462 to net9.0, any platform
using IronOcr;  // Single NuGet, supports .NET Framework 4.6.2+, .NET 5/6/7/8/9

// Register once as singleton — load language model once, share across all requests
// Call ReadAsync() in ASP.NET Core for non-blocking operation
var ocr = new IronTesseract();
var result = await ocr.ReadAsync("document.jpg");  // Async-first, no thread blocking
Console.WriteLine(result.Text);

dotnet remove package Tesseract.Net.SDK

dotnet remove package Tesseract.Net.SDK

dotnet remove package PdfiumViewer

dotnet remove package PdfiumViewer

// Before (Tesseract.NET SDK)
using Patagames.Ocr;
using Patagames.Ocr.Enums;

// After (IronOCR)
using IronOcr;

// Before (Tesseract.NET SDK)
using Patagames.Ocr;
using Patagames.Ocr.Enums;

// After (IronOCR)
using IronOcr;

// Global.asax.cs — .NET Framework MVC application
// OcrApi lifecycle managed manually; no DI container involved
public class MvcApplication : System.Web.HttpApplication
{
    // Static field — one engine for the app lifetime
    // But: NOT thread-safe; concurrent requests share a single OcrApi instance
    private static OcrApi _globalApi;

    protected void Application_Start()
    {
        // Initialize OCR engine on app startup
        // Path to tessdata hardcoded for deployment environment
        _globalApi = OcrApi.Create();
        _globalApi.Init(Languages.English);

        AreaRegistration.RegisterAllAreas();
        RouteConfig.RegisterRoutes(RouteTable.Routes);
    }

    protected void Application_End()
    {
        // Must manually dispose on shutdown
        _globalApi?.Dispose();
    }
}

// Global.asax.cs — .NET Framework MVC application
// OcrApi lifecycle managed manually; no DI container involved
public class MvcApplication : System.Web.HttpApplication
{
    // Static field — one engine for the app lifetime
    // But: NOT thread-safe; concurrent requests share a single OcrApi instance
    private static OcrApi _globalApi;

    protected void Application_Start()
    {
        // Initialize OCR engine on app startup
        // Path to tessdata hardcoded for deployment environment
        _globalApi = OcrApi.Create();
        _globalApi.Init(Languages.English);

        AreaRegistration.RegisterAllAreas();
        RouteConfig.RegisterRoutes(RouteTable.Routes);
    }

    protected void Application_End()
    {
        // Must manually dispose on shutdown
        _globalApi?.Dispose();
    }
}

// Program.cs —.NET 8ASP.NET Core application
// IronTesseract é seguro para roscas; register as singleton, inject where needed
var builder = WebApplication.CreateBuilder(args);

IronOcr.License.LicenseKey = builder.Configuration["IronOcr:LicenseKey"];

// Register as singleton — one instance, thread-safe, shared across all requests
builder.Services.AddSingleton<IronTesseract>();

builder.Services.AddControllers();

var app = builder.Build();
app.MapControllers();
app.Run();

// Program.cs —.NET 8ASP.NET Core application
// IronTesseract é seguro para roscas; register as singleton, inject where needed
var builder = WebApplication.CreateBuilder(args);

IronOcr.License.LicenseKey = builder.Configuration["IronOcr:LicenseKey"];

// Register as singleton — one instance, thread-safe, shared across all requests
builder.Services.AddSingleton<IronTesseract>();

builder.Services.AddControllers();

var app = builder.Build();
app.MapControllers();
app.Run();

// .NET Framework 4.x disposal patterns — three variants encountered in production
public class LegacyOcrProcessor
{
    // Pattern 1: try/finally guard (pre-C# 2.0 style, still common in legacy code)
    public string ProcessWithTryFinally(string imagePath)
    {
        OcrApi api = null;
        try
        {
            api = OcrApi.Create();
            api.Init(Languages.English);
            return api.GetTextFromImage(imagePath);
        }
        finally
        {
            if (api != null)
                api.Dispose();  //Manualnull check required
        }
    }

    // Pattern 2: nested using blocks — one for engine, one for image object
    public string ProcessWithNestedUsing(string imagePath)
    {
        using (var api = OcrApi.Create())
        {
            api.Init(Languages.English);
            using (var img = OcrImage.FromFile(imagePath))
            {
                api.SetImage(img);
                return api.GetText();
            }   // img disposed here
        }       // api disposed here — nested indentation grows with each resource
    }

    // Pattern 3: missing disposal — memory leak, common in older service code
    public string ProcessUnsafe(string imagePath)
    {
        var api = OcrApi.Create();   // WARNING: never disposed
        api.Init(Languages.English);
        return api.GetTextFromImage(imagePath);
    }
}

// .NET Framework 4.x disposal patterns — three variants encountered in production
public class LegacyOcrProcessor
{
    // Pattern 1: try/finally guard (pre-C# 2.0 style, still common in legacy code)
    public string ProcessWithTryFinally(string imagePath)
    {
        OcrApi api = null;
        try
        {
            api = OcrApi.Create();
            api.Init(Languages.English);
            return api.GetTextFromImage(imagePath);
        }
        finally
        {
            if (api != null)
                api.Dispose();  //Manualnull check required
        }
    }

    // Pattern 2: nested using blocks — one for engine, one for image object
    public string ProcessWithNestedUsing(string imagePath)
    {
        using (var api = OcrApi.Create())
        {
            api.Init(Languages.English);
            using (var img = OcrImage.FromFile(imagePath))
            {
                api.SetImage(img);
                return api.GetText();
            }   // img disposed here
        }       // api disposed here — nested indentation grows with each resource
    }

    // Pattern 3: missing disposal — memory leak, common in older service code
    public string ProcessUnsafe(string imagePath)
    {
        var api = OcrApi.Create();   // WARNING: never disposed
        api.Init(Languages.English);
        return api.GetTextFromImage(imagePath);
    }
}

// Modern C# 8.0+ disposal — flat, readable, no nesting
public class ModernOcrProcessor
{
    private readonly IronTesseract _ocr;  // Injected singleton, never disposed per-request

    public ModernOcrProcessor(IronTesseract ocr) => _ocr = ocr;

    // Pattern 1: using var declaration — scoped to method, no nesting
    public string ProcessDocument(string imagePath)
    {
        using var input = new OcrInput();  // OcrInput is the disposable resource, not the engine
        input.LoadImage(imagePath);
        return _ocr.Read(input).Text;
    }   // input disposed here automatically — no nesting, no try/finally

    // Pattern 2: multiple inputs in one scope — still flat
    public string ProcessMultipleInputs(string imagePath, string pdfPath)
    {
        using var imageInput = new OcrInput();
        imageInput.LoadImage(imagePath);

        using var pdfInput = new OcrInput();
        pdfInput.LoadPdf(pdfPath);

        var imageText = _ocr.Read(imageInput).Text;
        var pdfText = _ocr.Read(pdfInput).Text;

        return $"{imageText}\n{pdfText}";
    }   // both inputs disposed here — zero nesting
}

// Modern C# 8.0+ disposal — flat, readable, no nesting
public class ModernOcrProcessor
{
    private readonly IronTesseract _ocr;  // Injected singleton, never disposed per-request

    public ModernOcrProcessor(IronTesseract ocr) => _ocr = ocr;

    // Pattern 1: using var declaration — scoped to method, no nesting
    public string ProcessDocument(string imagePath)
    {
        using var input = new OcrInput();  // OcrInput is the disposable resource, not the engine
        input.LoadImage(imagePath);
        return _ocr.Read(input).Text;
    }   // input disposed here automatically — no nesting, no try/finally

    // Pattern 2: multiple inputs in one scope — still flat
    public string ProcessMultipleInputs(string imagePath, string pdfPath)
    {
        using var imageInput = new OcrInput();
        imageInput.LoadImage(imagePath);

        using var pdfInput = new OcrInput();
        pdfInput.LoadPdf(pdfPath);

        var imageText = _ocr.Read(imageInput).Text;
        var pdfText = _ocr.Read(pdfInput).Text;

        return $"{imageText}\n{pdfText}";
    }   // both inputs disposed here — zero nesting
}

// ASP.NET Core controller — forced workaround for synchronous OCR API
[ApiController]
[Route("api/ocr")]
public class OcrController : ControllerBase
{
    [HttpPost("extract")]
    public async Task<IActionResult> ExtractText(IFormFile file)
    {
        // Must copy upload to temp file — OcrApi does not accept streams directly
        var tempPath = Path.GetTempFileName();
        await using (var stream = System.IO.File.OpenWrite(tempPath))
            await file.CopyToAsync(stream);

        string text;
        try
        {
            // Task.Run wraps synchronous call — still consumes a thread-pool thread
            // Does NOT free the calling thread during OCR processing
            text = await Task.Run(() =>
            {
                using (var api = OcrApi.Create())   // 40-100MB load per request
                {
                    api.Init(Languages.English);
                    return api.GetTextFromImage(tempPath);  // synchronous, blocking
                }
            });
        }
        finally
        {
            System.IO.File.Delete(tempPath);  //Manualtemp file cleanup
        }

        return Ok(new { text });
    }
}

// ASP.NET Core controller — forced workaround for synchronous OCR API
[ApiController]
[Route("api/ocr")]
public class OcrController : ControllerBase
{
    [HttpPost("extract")]
    public async Task<IActionResult> ExtractText(IFormFile file)
    {
        // Must copy upload to temp file — OcrApi does not accept streams directly
        var tempPath = Path.GetTempFileName();
        await using (var stream = System.IO.File.OpenWrite(tempPath))
            await file.CopyToAsync(stream);

        string text;
        try
        {
            // Task.Run wraps synchronous call — still consumes a thread-pool thread
            // Does NOT free the calling thread during OCR processing
            text = await Task.Run(() =>
            {
                using (var api = OcrApi.Create())   // 40-100MB load per request
                {
                    api.Init(Languages.English);
                    return api.GetTextFromImage(tempPath);  // synchronous, blocking
                }
            });
        }
        finally
        {
            System.IO.File.Delete(tempPath);  //Manualtemp file cleanup
        }

        return Ok(new { text });
    }
}

// ASP.NET Core controller — genuine async OCR, no temp files, no thread blocking
[ApiController]
[Route("api/ocr")]
public class OcrController : ControllerBase
{
    private readonly IronTesseract _ocr;  // Singleton injected via DI

    public OcrController(IronTesseract ocr) => _ocr = ocr;

    [HttpPost("extract")]
    public async Task<IActionResult> ExtractText(IFormFile file)
    {
        // Load stream directly — no temp file needed
        using var input = new OcrInput();
        input.LoadImage(file.OpenReadStream());  // Stream input, no disk write

        // ReadAsync — genuinely non-blocking, integrates with ASP.NET Core pipeline
        var result = await _ocr.ReadAsync(input);

        return Ok(new
        {
            text = result.Text,
            confidence = result.Confidence
        });
    }
}

// ASP.NET Core controller — genuine async OCR, no temp files, no thread blocking
[ApiController]
[Route("api/ocr")]
public class OcrController : ControllerBase
{
    private readonly IronTesseract _ocr;  // Singleton injected via DI

    public OcrController(IronTesseract ocr) => _ocr = ocr;

    [HttpPost("extract")]
    public async Task<IActionResult> ExtractText(IFormFile file)
    {
        // Load stream directly — no temp file needed
        using var input = new OcrInput();
        input.LoadImage(file.OpenReadStream());  // Stream input, no disk write

        // ReadAsync — genuinely non-blocking, integrates with ASP.NET Core pipeline
        var result = await _ocr.ReadAsync(input);

        return Ok(new
        {
            text = result.Text,
            confidence = result.Confidence
        });
    }
}

// Multi-frame TIFF: manual frame extraction to temp files + forced GC
using System.Drawing;
using System.Drawing.Imaging;
using Patagames.Ocr;

public List<string> ProcessMultiFrameTiff(string tiffPath)
{
    var pageTexts = new List<string>();

    using (var api = OcrApi.Create())
    {
        api.Init(Languages.English);

        using (var bitmap = new Bitmap(tiffPath))
        {
            var dimension = new FrameDimension(bitmap.FrameDimensionsList[0]);
            int frameCount = bitmap.GetFrameCount(dimension);

            for (int i = 0; i < frameCount; i++)
            {
                bitmap.SelectActiveFrame(dimension, i);

                // Must write each frame to a temp file — no in-memory path
                var tempPath = Path.GetTempFileName() + ".png";
                bitmap.Save(tempPath, ImageFormat.Png);

                try
                {
                    pageTexts.Add(api.GetTextFromImage(tempPath));
                }
                finally
                {
                    File.Delete(tempPath);  //Manualcleanup on every frame
                }

                // Force GC every 10 frames — workaround for memory pressure
                // Slows processing; indicates memory management is manual
                if (i % 10 == 0)
                {
                    GC.Collect();
                    GC.WaitForPendingFinalizers();
                }
            }
        }
    }

    return pageTexts;
}

// Multi-frame TIFF: manual frame extraction to temp files + forced GC
using System.Drawing;
using System.Drawing.Imaging;
using Patagames.Ocr;

public List<string> ProcessMultiFrameTiff(string tiffPath)
{
    var pageTexts = new List<string>();

    using (var api = OcrApi.Create())
    {
        api.Init(Languages.English);

        using (var bitmap = new Bitmap(tiffPath))
        {
            var dimension = new FrameDimension(bitmap.FrameDimensionsList[0]);
            int frameCount = bitmap.GetFrameCount(dimension);

            for (int i = 0; i < frameCount; i++)
            {
                bitmap.SelectActiveFrame(dimension, i);

                // Must write each frame to a temp file — no in-memory path
                var tempPath = Path.GetTempFileName() + ".png";
                bitmap.Save(tempPath, ImageFormat.Png);

                try
                {
                    pageTexts.Add(api.GetTextFromImage(tempPath));
                }
                finally
                {
                    File.Delete(tempPath);  //Manualcleanup on every frame
                }

                // Force GC every 10 frames — workaround for memory pressure
                // Slows processing; indicates memory management is manual
                if (i % 10 == 0)
                {
                    GC.Collect();
                    GC.WaitForPendingFinalizers();
                }
            }
        }
    }

    return pageTexts;
}

// Multi-frame TIFF: one method call, no temp files, no manual GC
using IronOcr;

public List<string> ProcessMultiFrameTiff(string tiffPath)
{
    var ocr = new IronTesseract();

    using var input = new OcrInput();
    input.LoadImageFrames(tiffPath);  // Loads all frames natively — no temp files

    var result = ocr.Read(input);

    // Pages map directly to TIFF frames
    return result.Pages.Select(page => page.Text).ToList();
}

// Multi-frame TIFF: one method call, no temp files, no manual GC
using IronOcr;

public List<string> ProcessMultiFrameTiff(string tiffPath)
{
    var ocr = new IronTesseract();

    using var input = new OcrInput();
    input.LoadImageFrames(tiffPath);  // Loads all frames natively — no temp files

    var result = ocr.Read(input);

    // Pages map directly to TIFF frames
    return result.Pages.Select(page => page.Text).ToList();
}

# Dockerfile attempt — fails at runtime on Linux base image
FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
# This base image is Linux (Debian) by default
# Tesseract.Net.SDK's Windows native DLLs cannot load here
# Application throws DllNotFoundException on first OCR call

WORKDIR /app
COPY --from=build /app/publish .

# Even copying the Windows tessdata folder has no effect —
# the P/Invoke DLL cannot be loaded regardless of file placement
COPY tessdata/ ./tessdata/

ENTRYPOINT ["dotnet", "MyApp.dll"]
# Runtime error: DllNotFoundException: Unable to load DLL 'libtesseract'
# Não fix available within Tesseract.Net.SDK — requires replacing the library

# Dockerfile attempt — fails at runtime on Linux base image
FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
# This base image is Linux (Debian) by default
# Tesseract.Net.SDK's Windows native DLLs cannot load here
# Application throws DllNotFoundException on first OCR call

WORKDIR /app
COPY --from=build /app/publish .

# Even copying the Windows tessdata folder has no effect —
# the P/Invoke DLL cannot be loaded regardless of file placement
COPY tessdata/ ./tessdata/

ENTRYPOINT ["dotnet", "MyApp.dll"]
# Runtime error: DllNotFoundException: Unable to load DLL 'libtesseract'
# Não fix available within Tesseract.Net.SDK — requires replacing the library

# Dockerfile for IronOCR on Linux — add one apt-get line, nothing else changes
FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base

# Required system dependency for IronOCR on Debian/Ubuntu base images
RUN apt-get update && apt-get install -y libgdiplus \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY --from=build /app/publish .

# Não tessdata folder — language data is bundled with the IronOcr NuGet packages
# Não platform check code —IronOCR runs identically on Windows and Linux

ENTRYPOINT ["dotnet", "MyApp.dll"]

# Dockerfile for IronOCR on Linux — add one apt-get line, nothing else changes
FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base

# Required system dependency for IronOCR on Debian/Ubuntu base images
RUN apt-get update && apt-get install -y libgdiplus \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY --from=build /app/publish .

# Não tessdata folder — language data is bundled with the IronOcr NuGet packages
# Não platform check code —IronOCR runs identically on Windows and Linux

ENTRYPOINT ["dotnet", "MyApp.dll"]

<!-- Single modern target (preferred) -->
<TargetFramework>net8.0</TargetFramework>

<!-- Multi-targeting during phased migration — supports both simultaneously -->
<TargetFrameworks>net462;net8.0</TargetFrameworks>

<!-- Single modern target (preferred) -->
<TargetFramework>net8.0</TargetFramework>

<!-- Multi-targeting during phased migration — supports both simultaneously -->
<TargetFrameworks>net462;net8.0</TargetFrameworks>

// Remove: private static OcrApi _instance; / private static readonly object _lock = new();

// Replace with DI registration in Program.cs
builder.Services.AddSingleton<IronTesseract>();

// In consuming classes — constructor injection
public class DocumentProcessor
{
    private readonly IronTesseract _ocr;
    public DocumentProcessor(IronTesseract ocr) => _ocr = ocr;

    public async Task<string> ProcessAsync(string path)
    {
        using var input = new OcrInput();
        input.LoadImage(path);
        var result = await _ocr.ReadAsync(input);
        return result.Text;
    }
}

// Remove: private static OcrApi _instance; / private static readonly object _lock = new();

// Replace with DI registration in Program.cs
builder.Services.AddSingleton<IronTesseract>();

// In consuming classes — constructor injection
public class DocumentProcessor
{
    private readonly IronTesseract _ocr;
    public DocumentProcessor(IronTesseract ocr) => _ocr = ocr;

    public async Task<string> ProcessAsync(string path)
    {
        using var input = new OcrInput();
        input.LoadImage(path);
        var result = await _ocr.ReadAsync(input);
        return result.Text;
    }
}

# Remove from CI/CD pipeline
# BEFORE (delete these lines):
# - cp -r tessdata/ $DEPLOY_PATH/tessdata/
# - test -f $DEPLOY_PATH/tessdata/eng.traineddata

# AFTER: nothing — language data is in the NuGet package restore output
dotnet restore   # Downloads IronOcr and any IronOcr.Languages.* packages
dotnet publish   # Includes language data automatically

# Remove from CI/CD pipeline
# BEFORE (delete these lines):
# - cp -r tessdata/ $DEPLOY_PATH/tessdata/
# - test -f $DEPLOY_PATH/tessdata/eng.traineddata

# AFTER: nothing — language data is in the NuGet package restore output
dotnet restore   # Downloads IronOcr and any IronOcr.Languages.* packages
dotnet publish   # Includes language data automatically

<!-- Remove architecture-specific build configurations from .csproj -->
<!-- BEFORE: Conditional native DLL copy based on Platform target -->
<!--
<ItemGroup Condition="'$(Platform)' == 'x64'">
  <Content Include="$(SolutionDir)libs\x64\*.dll">
    <CopyToOutputDirectory>Always</CopyToOutputDirectory>
  </Content>
</ItemGroup>
-->

<!-- AFTER: Nothing.IronOCR resolves the correct binary automatically. -->

<!-- Remove architecture-specific build configurations from .csproj -->
<!-- BEFORE: Conditional native DLL copy based on Platform target -->
<!--
<ItemGroup Condition="'$(Platform)' == 'x64'">
  <Content Include="$(SolutionDir)libs\x64\*.dll">
    <CopyToOutputDirectory>Always</CopyToOutputDirectory>
  </Content>
</ItemGroup>
-->

<!-- AFTER: Nothing.IronOCR resolves the correct binary automatically. -->

// Before: untyped string variables, silent failures on typos
api.SetVariable("tessedit_char_whitelist", "0123456789");
api.SetVariable("tessedit_pageseg_mode", "7");

// After: typed properties, compile-time validation, IDE completion
ocr.Configuration.WhiteListCharacters = "0123456789";
ocr.Configuration.PageSegmentationMode = TesseractPageSegmentationMode.SingleLine;

// Before: untyped string variables, silent failures on typos
api.SetVariable("tessedit_char_whitelist", "0123456789");
api.SetVariable("tessedit_pageseg_mode", "7");

// After: typed properties, compile-time validation, IDE completion
ocr.Configuration.WhiteListCharacters = "0123456789";
ocr.Configuration.PageSegmentationMode = TesseractPageSegmentationMode.SingleLine;

// IronOCR: page-level progress tracking for multi-page documents
using IronOcr;

var ocr = new IronTesseract();

using var input = new OcrInput();
input.LoadPdf("large-archive.pdf");

// Subscribe to page-level progress events
input.OcrProgress += (sender, e) =>
{
    Console.WriteLine($"Processing page {e.CurrentPage} of {e.TotalPages} " +
                      $"({e.ProgressPercent:F0}%)");
};

var result = ocr.Read(input);
Console.WriteLine($"Complete: {result.Pages.Count} pages extracted");

// IronOCR: page-level progress tracking for multi-page documents
using IronOcr;

var ocr = new IronTesseract();

using var input = new OcrInput();
input.LoadPdf("large-archive.pdf");

// Subscribe to page-level progress events
input.OcrProgress += (sender, e) =>
{
    Console.WriteLine($"Processing page {e.CurrentPage} of {e.TotalPages} " +
                      $"({e.ProgressPercent:F0}%)");
};

var result = ocr.Read(input);
Console.WriteLine($"Complete: {result.Pages.Count} pages extracted");

# Find all files referencing Patagames namespace
grep -rl "Patagames" --include="*.cs" .

# Find all OcrApi instantiation points
grep -rn "OcrApi.Create" --include="*.cs" .

# Find tessdata references in project and build files
grep -rn "tessdata" --include="*.cs" --include="*.csproj" --include="*.yaml" --include="*.yml" .

# Find platform guard checks that can be removed after migration
grep -rn "IsOSPlatform.*Windows" --include="*.cs" .

# Find Task.Run wrappers around synchronous OCR calls
grep -rn "Task.Run" --include="*.cs" . | grep -i "ocr\|image\|text"

# Count distinct OcrApi.Create() call sites to estimate migration scope
grep -c "OcrApi.Create" $(find . -name "*.cs")

# Find all files referencing Patagames namespace
grep -rl "Patagames" --include="*.cs" .

# Find all OcrApi instantiation points
grep -rn "OcrApi.Create" --include="*.cs" .

# Find tessdata references in project and build files
grep -rn "tessdata" --include="*.cs" --include="*.csproj" --include="*.yaml" --include="*.yml" .

# Find platform guard checks that can be removed after migration
grep -rn "IsOSPlatform.*Windows" --include="*.cs" .

# Find Task.Run wrappers around synchronous OCR calls
grep -rn "Task.Run" --include="*.cs" . | grep -i "ocr\|image\|text"

# Count distinct OcrApi.Create() call sites to estimate migration scope
grep -c "OcrApi.Create" $(find . -name "*.cs")