Refactor and integrate face embedding API support

Refactored `EmployeeUploadPicture.cshtml.cs` to improve readability, maintainability, and modularity. Introduced `_httpClientFactory` for HTTP requests and added `SendEmbeddingsToApi` for Python API integration. Enhanced employee-related operations, including activation, image handling, and settings management.

Added `IFaceEmbeddingService` interface and implemented it in `FaceEmbeddingService` to manage face embeddings. Integrated with a Python API for generating, refining, deleting, and retrieving embeddings. Included robust error handling and detailed logging.

Improved code structure, reduced duplication, and added comments for better debugging and future development.

Add face embedding integration for employee management

Introduced `IFaceEmbeddingService` and its implementation to manage
face embeddings via a Python API. Integrated embedding generation
into `EmployeeApplication` and `EmployeeUploadPictureModel`,
enabling image uploads, embedding creation, and validation.

Refactored `EmployeeUploadPictureModel` for clarity, adding methods
to handle image processing, API interactions, and employee
activation/deactivation with embedding checks. Enhanced error
handling, logging, and user feedback.

Removed legacy code and updated dependencies to include
`IHttpClientFactory` and `IFaceEmbeddingService`. Added localized
error messages and improved maintainability by streamlining code.

0_Framework/Application/FaceEmbedding/IFaceEmbeddingService.cs

@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace _0_Framework.Application.FaceEmbedding;
+
+public interface IFaceEmbeddingService
+{
+ Task<OperationResult> GenerateEmbeddingsAsync(long employeeId, long workshopId, string employeeFullName, string picture1Path, string picture2Path);
+    Task<OperationResult> GenerateEmbeddingsFromStreamAsync(long employeeId, long workshopId, string employeeFullName, Stream picture1Stream, Stream picture2Stream);
+    Task<OperationResult> RefineEmbeddingAsync(long employeeId, long workshopId, float[] embedding, float confidence, Dictionary<string, object> metadata = null);
+    Task<OperationResult> DeleteEmbeddingAsync(long employeeId, long workshopId);
+    Task<OperationResult<FaceEmbeddingResponse>> GetEmbeddingAsync(long employeeId, long workshopId);
+}
+
+public class FaceEmbeddingResponse
+{
+    public long EmployeeId { get; set; }
+    public long WorkshopId { get; set; }
+    public string EmployeeFullName { get; set; }
+    public float[] Embedding { get; set; }
+    public float Confidence { get; set; }
+    public Dictionary<string, object> Metadata { get; set; }
+}

0_Framework/InfraStructure/FaceEmbeddingService.cs

@@ -0,0 +1,316 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using System.Text.Json;
+using _0_Framework.Application;
+using _0_Framework.Application.FaceEmbedding;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Http;
+using System.Threading.Tasks;
+
+namespace _0_Framework.Infrastructure;
+
+/// <summary>
+/// پیاده‌سازی سرویس ارتباط با API پایتون برای مدیریت Embeddings چهره
+/// </summary>
+public class FaceEmbeddingService : IFaceEmbeddingService
+{
+	private readonly IHttpClientFactory _httpClientFactory;
+	private readonly ILogger<FaceEmbeddingService> _logger;
+	private readonly string _apiBaseUrl;
+
+	public FaceEmbeddingService(IHttpClientFactory httpClientFactory, ILogger<FaceEmbeddingService> logger)
+	{
+		_httpClientFactory = httpClientFactory;
+		_logger = logger;
+		_apiBaseUrl = "http://localhost:8000";
+	}
+
+	public async Task<OperationResult> GenerateEmbeddingsAsync(long employeeId, long workshopId,
+		string employeeFullName, string picture1Path, string picture2Path)
+	{
+		try
+		{
+			var httpClient = _httpClientFactory.CreateClient();
+			httpClient.BaseAddress = new Uri(_apiBaseUrl);
+			httpClient.Timeout = TimeSpan.FromSeconds(30);
+
+			using var content = new MultipartFormDataContent();
+
+			// Add form fields
+			content.Add(new StringContent(employeeId.ToString()), "employee_id");
+			content.Add(new StringContent(workshopId.ToString()), "workshop_id");
+			content.Add(new StringContent(employeeFullName ?? ""), "employee_full_name");
+
+			// Add picture files
+			if (File.Exists(picture1Path))
+			{
+				var picture1Bytes = await File.ReadAllBytesAsync(picture1Path);
+				var picture1Content = new ByteArrayContent(picture1Bytes);
+				picture1Content.Headers.ContentType = new MediaTypeHeaderValue("image/jpeg");
+				content.Add(picture1Content, "picture1", "1.jpg");
+			}
+			else
+			{
+				_logger.LogWarning("Picture1 not found at path: {Path}", picture1Path);
+				return new OperationResult { IsSuccedded = false, Message = "تصویر اول یافت نشد" };
+			}
+
+			if (File.Exists(picture2Path))
+			{
+				var picture2Bytes = await File.ReadAllBytesAsync(picture2Path);
+				var picture2Content = new ByteArrayContent(picture2Bytes);
+				picture2Content.Headers.ContentType = new MediaTypeHeaderValue("image/jpeg");
+				content.Add(picture2Content, "picture2", "2.jpg");
+			}
+			else
+			{
+				_logger.LogWarning("Picture2 not found at path: {Path}", picture2Path);
+				return new OperationResult { IsSuccedded = false, Message = "تصویر دوم یافت نشد" };
+			}
+
+			// Send request to Python API
+			var response = await httpClient.PostAsync("embeddings", content);
+
+			if (response.IsSuccessStatusCode)
+			{
+				var responseContent = await response.Content.ReadAsStringAsync();
+				_logger.LogInformation("Embeddings generated successfully for Employee {EmployeeId}, Workshop {WorkshopId}",
+	employeeId, workshopId);
+
+				return new OperationResult
+				{
+					IsSuccedded = true,
+					Message = "Embedding با موفقیت ایجاد شد"
+				};
+			}
+			else
+			{
+				var errorContent = await response.Content.ReadAsStringAsync();
+				_logger.LogError("Failed to generate embeddings. Status: {StatusCode}, Error: {Error}",
+				  response.StatusCode, errorContent);
+
+				return new OperationResult
+				{
+					IsSuccedded = false,
+					Message = $"خطا در تولید Embedding: {response.StatusCode}"
+				};
+			}
+		}
+		catch (HttpRequestException ex)
+		{
+			_logger.LogError(ex, "HTTP error while calling embeddings API for Employee {EmployeeId}", employeeId);
+			return new OperationResult
+			{
+				IsSuccedded = false,
+				Message = "خطا در ارتباط با سرور Embedding"
+			};
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Error while calling embeddings API for Employee {EmployeeId}", employeeId);
+			return new OperationResult
+			{
+				IsSuccedded = false,
+				Message = "خطای غیرمنتظره در تولید Embedding"
+			};
+		}
+	}
+
+	public async Task<OperationResult> GenerateEmbeddingsFromStreamAsync(long employeeId, long workshopId,
+		string employeeFullName, Stream picture1Stream, Stream picture2Stream)
+	{
+		try
+		{
+			var httpClient = _httpClientFactory.CreateClient();
+			httpClient.BaseAddress = new Uri(_apiBaseUrl);
+			httpClient.Timeout = TimeSpan.FromSeconds(30);
+
+			using var content = new MultipartFormDataContent();
+
+			// Add form fields
+			content.Add(new StringContent(employeeId.ToString()), "employee_id");
+			content.Add(new StringContent(workshopId.ToString()), "workshop_id");
+			content.Add(new StringContent(employeeFullName ?? ""), "employee_full_name");
+
+			// Add picture streams
+			var picture1Content = new StreamContent(picture1Stream);
+			picture1Content.Headers.ContentType = new MediaTypeHeaderValue("image/jpeg");
+			content.Add(picture1Content, "picture1", "1.jpg");
+
+			var picture2Content = new StreamContent(picture2Stream);
+			picture2Content.Headers.ContentType = new MediaTypeHeaderValue("image/jpeg");
+			content.Add(picture2Content, "picture2", "2.jpg");
+
+			// Send request to Python API
+			var response = await httpClient.PostAsync("embeddings", content);
+
+			if (response.IsSuccessStatusCode)
+			{
+				_logger.LogInformation("Embeddings generated successfully from streams for Employee {EmployeeId}", employeeId);
+				return new OperationResult { IsSuccedded = true, Message = "Embedding با موفقیت ایجاد شد" };
+			}
+			else
+			{
+				var errorContent = await response.Content.ReadAsStringAsync();
+				_logger.LogError("Failed to generate embeddings from streams. Status: {StatusCode}, Error: {Error}",
+						 response.StatusCode, errorContent);
+
+				return new OperationResult
+				{
+					IsSuccedded = false,
+					Message = $"خطا در تولید Embedding: {response.StatusCode}"
+				};
+			}
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Error while generating embeddings from streams for Employee {EmployeeId}", employeeId);
+			return new OperationResult
+			{
+				IsSuccedded = false,
+				Message = "خطا در تولید Embedding"
+			};
+		}
+	}
+
+	public async Task<OperationResult> RefineEmbeddingAsync(long employeeId, long workshopId, float[] embedding,
+		float confidence, Dictionary<string, object> metadata = null)
+	{
+		try
+		{
+			var httpClient = _httpClientFactory.CreateClient();
+			httpClient.BaseAddress = new Uri(_apiBaseUrl);
+			httpClient.Timeout = TimeSpan.FromSeconds(30);
+
+			var requestBody = new
+			{
+				employeeId,
+				workshopId,
+				embedding,
+				confidence,
+				metadata = metadata ?? new Dictionary<string, object>()
+			};
+
+			var response = await httpClient.PostAsJsonAsync("embeddings/refine", requestBody);
+
+			if (response.IsSuccessStatusCode)
+			{
+				_logger.LogInformation("Embedding refined successfully for Employee {EmployeeId}", employeeId);
+				return new OperationResult { IsSuccedded = true, Message = "Embedding بهبود یافت" };
+			}
+			else
+			{
+				var errorContent = await response.Content.ReadAsStringAsync();
+				_logger.LogError("Failed to refine embedding. Status: {StatusCode}, Error: {Error}",
+				response.StatusCode, errorContent);
+
+				return new OperationResult
+				{
+					IsSuccedded = false,
+					Message = $"خطا در بهبود Embedding: {response.StatusCode}"
+				};
+			}
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Error while refining embedding for Employee {EmployeeId}", employeeId);
+			return new OperationResult
+			{
+				IsSuccedded = false,
+				Message = "خطا در بهبود Embedding"
+			};
+		}
+	}
+
+	public async Task<OperationResult> DeleteEmbeddingAsync(long employeeId, long workshopId)
+	{
+		try
+		{
+			var httpClient = _httpClientFactory.CreateClient();
+			httpClient.BaseAddress = new Uri(_apiBaseUrl);
+			httpClient.Timeout = TimeSpan.FromSeconds(30);
+
+			var response = await httpClient.DeleteAsync($"embeddings/{workshopId}/{employeeId}");
+
+			if (response.IsSuccessStatusCode)
+			{
+				_logger.LogInformation("Embedding deleted successfully for Employee {EmployeeId}", employeeId);
+				return new OperationResult { IsSuccedded = true, Message = "Embedding حذف شد" };
+			}
+			else
+			{
+				var errorContent = await response.Content.ReadAsStringAsync();
+				_logger.LogError("Failed to delete embedding. Status: {StatusCode}, Error: {Error}",
+								response.StatusCode, errorContent);
+
+				return new OperationResult
+				{
+					IsSuccedded = false,
+					Message = $"خطا در حذف Embedding: {response.StatusCode}"
+				};
+			}
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Error while deleting embedding for Employee {EmployeeId}", employeeId);
+			return new OperationResult
+			{
+				IsSuccedded = false,
+				Message = "خطا در حذف Embedding"
+			};
+		}
+	}
+
+	public async Task<OperationResult<FaceEmbeddingResponse>> GetEmbeddingAsync(long employeeId, long workshopId)
+	{
+		try
+		{
+			var httpClient = _httpClientFactory.CreateClient();
+			httpClient.BaseAddress = new Uri(_apiBaseUrl);
+			httpClient.Timeout = TimeSpan.FromSeconds(30);
+
+			var response = await httpClient.GetAsync($"embeddings/{workshopId}/{employeeId}");
+
+			if (response.IsSuccessStatusCode)
+			{
+				var content = await response.Content.ReadAsStringAsync();
+				var embeddingData = JsonSerializer.Deserialize<FaceEmbeddingResponse>(content,
+		   new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+
+				_logger.LogInformation("Embedding retrieved successfully for Employee {EmployeeId}", employeeId);
+
+				return new OperationResult<FaceEmbeddingResponse>
+				{
+					IsSuccedded = true,
+					Message = "Embedding دریافت شد",
+					Data = embeddingData
+				};
+			}
+			else
+			{
+				var errorContent = await response.Content.ReadAsStringAsync();
+				_logger.LogError("Failed to get embedding. Status: {StatusCode}, Error: {Error}",
+						response.StatusCode, errorContent);
+					
+				return new OperationResult<FaceEmbeddingResponse>
+				{
+					IsSuccedded = false,
+					Message = $"خطا در دریافت Embedding: {response.StatusCode}"
+				};
+			}
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Error while getting embedding for Employee {EmployeeId}", employeeId);
+			return new OperationResult<FaceEmbeddingResponse>
+			{
+				IsSuccedded = false,
+				Message = "خطا در دریافت Embedding"
+			};
+		}
+	}
+}

CompanyManagment.Application/EmployeeAplication.cs

@@ -31,6 +31,7 @@ using Company.Domain.LeftWorkAgg;
 using CompanyManagment.App.Contracts.Employee.DTO;
 using Company.Domain.EmployeeAuthorizeTempAgg;
 using Company.Domain.LeftWorkInsuranceAgg;
+using _0_Framework.Application.FaceEmbedding;
 
 namespace CompanyManagment.Application;
 
@@ -61,29 +62,31 @@ public class EmployeeAplication : RepositoryBase<long, Employee>, IEmployeeAppli
     private readonly ICustomizeWorkshopGroupSettingsRepository _customizeWorkshopGroupSettingsRepository;
     private readonly IEmployeeAuthorizeTempRepository _employeeAuthorizeTempRepository;
     private readonly ILeftWorkInsuranceRepository _leftWorkInsuranceRepository;
+    private readonly IFaceEmbeddingService _faceEmbeddingService;
 
-    public EmployeeAplication(IEmployeeRepository employeeRepository, CompanyContext context, IWorkshopRepository workShopRepository, IWebHostEnvironment webHostEnvironment, IRollCallEmployeeStatusApplication rollCallEmployeeStatusApplication, IRollCallEmployeeRepository rollCallEmployeeRepository, ICustomizeWorkshopSettingsApplication customizeWorkshopSettingsApplication, IEmployeeDocumentsApplication employeeDocumentsApplication, IEmployeeDocumentsRepository employeeDocumentsRepository, IEmployeeBankInformationApplication employeeBankInformationApplication, ILeftWorkTempRepository leftWorkTempRepository, IUidService uidService, ICustomizeWorkshopEmployeeSettingsRepository customizeWorkshopEmployeeSettingsRepository, IPersonnelCodeRepository personnelCodeRepository, IEmployeeClientTempRepository employeeClientTempRepository, ICustomizeWorkshopGroupSettingsRepository customizeWorkshopGroupSettingsRepository, ILeftWorkRepository leftWorkRepository, IEmployeeAuthorizeTempRepository employeeAuthorizeTempRepository, ILeftWorkInsuranceRepository leftWorkInsuranceRepository) : base(context)
-    {
-        _context = context;
-        _WorkShopRepository = workShopRepository;
-        _webHostEnvironment = webHostEnvironment;
-        _rollCallEmployeeStatusApplication = rollCallEmployeeStatusApplication;
-        _rollCallEmployeeRepository = rollCallEmployeeRepository;
-        _customizeWorkshopSettingsApplication = customizeWorkshopSettingsApplication;
-        _employeeDocumentsApplication = employeeDocumentsApplication;
-        _employeeBankInformationApplication = employeeBankInformationApplication;
-        _leftWorkTempRepository = leftWorkTempRepository;
-        _uidService = uidService;
-        _customizeWorkshopEmployeeSettingsRepository = customizeWorkshopEmployeeSettingsRepository;
-        _personnelCodeRepository = personnelCodeRepository;
-        _employeeClientTempRepository = employeeClientTempRepository;
-        _leftWorkRepository = leftWorkRepository;
-        _employeeAuthorizeTempRepository = employeeAuthorizeTempRepository;
-        _leftWorkInsuranceRepository = leftWorkInsuranceRepository;
-        _EmployeeRepository = employeeRepository;
-    }
+	public EmployeeAplication(IEmployeeRepository employeeRepository, CompanyContext context, IWorkshopRepository workShopRepository, IWebHostEnvironment webHostEnvironment, IRollCallEmployeeStatusApplication rollCallEmployeeStatusApplication, IRollCallEmployeeRepository rollCallEmployeeRepository, ICustomizeWorkshopSettingsApplication customizeWorkshopSettingsApplication, IEmployeeDocumentsApplication employeeDocumentsApplication, IEmployeeDocumentsRepository employeeDocumentsRepository, IEmployeeBankInformationApplication employeeBankInformationApplication, ILeftWorkTempRepository leftWorkTempRepository, IUidService uidService, ICustomizeWorkshopEmployeeSettingsRepository customizeWorkshopEmployeeSettingsRepository, IPersonnelCodeRepository personnelCodeRepository, IEmployeeClientTempRepository employeeClientTempRepository, ICustomizeWorkshopGroupSettingsRepository customizeWorkshopGroupSettingsRepository, ILeftWorkRepository leftWorkRepository, IEmployeeAuthorizeTempRepository employeeAuthorizeTempRepository, ILeftWorkInsuranceRepository leftWorkInsuranceRepository, IFaceEmbeddingService faceEmbeddingService) : base(context)
+	{
+		_context = context;
+		_WorkShopRepository = workShopRepository;
+		_webHostEnvironment = webHostEnvironment;
+		_rollCallEmployeeStatusApplication = rollCallEmployeeStatusApplication;
+		_rollCallEmployeeRepository = rollCallEmployeeRepository;
+		_customizeWorkshopSettingsApplication = customizeWorkshopSettingsApplication;
+		_employeeDocumentsApplication = employeeDocumentsApplication;
+		_employeeBankInformationApplication = employeeBankInformationApplication;
+		_leftWorkTempRepository = leftWorkTempRepository;
+		_uidService = uidService;
+		_customizeWorkshopEmployeeSettingsRepository = customizeWorkshopEmployeeSettingsRepository;
+		_personnelCodeRepository = personnelCodeRepository;
+		_employeeClientTempRepository = employeeClientTempRepository;
+		_leftWorkRepository = leftWorkRepository;
+		_employeeAuthorizeTempRepository = employeeAuthorizeTempRepository;
+		_leftWorkInsuranceRepository = leftWorkInsuranceRepository;
+		_EmployeeRepository = employeeRepository;
+		_faceEmbeddingService = faceEmbeddingService;
+	}
 
-    public OperationResult Create(CreateEmployee command)
+	public OperationResult Create(CreateEmployee command)
     {
         var opration = new OperationResult();
         if (_EmployeeRepository.Exists(x =>
@@ -1122,6 +1125,12 @@ public class EmployeeAplication : RepositoryBase<long, Employee>, IEmployeeAppli
                 rollCallEmployee.HasImage();
                 _rollCallEmployeeRepository.Create(rollCallEmployee);
                 _rollCallEmployeeRepository.SaveChanges();
+				string employeeFullName = employee.FName + " " + employee.LName;
+				var res = _faceEmbeddingService.GenerateEmbeddingsAsync(employee.id,command.WorkshopId,employeeFullName, filePath1,filePath2).GetAwaiter().GetResult();
+                if (!res.IsSuccedded)
+                {
+                    return op.Failed(res.Message);
+                }
 
             }