syntax = "proto3";

package facerecognition;

// The request message containing the image bytes
message FaceRequest {
  bytes image = 1;
  string model_name = 2; // optional: "VGG-Face", "FaceNet", "OpenFace"
}

// The response message containing recognition results
message FaceResponse {
  string name = 1;
  float confidence = 2;
  bytes image = 3; // matched employee image
}

// Enrollment messages
message EnrollFaceRequest {
  bytes image = 1;
  string name = 2;
}

message EnrollFaceResponse {
  bool success = 1;
  string message = 2;
}

// Messages for getting all employees
message Employee {
  string name = 1;
  bytes image = 2;
}

message EmployeeListRequest {}

message EmployeeListResponse {
  repeated Employee employees = 1;
}

// Messages for deleting an employee
message DeleteRequest {
  string name = 1;
}

message DeleteEmployeeResponse {
  bool success = 1;
  string message = 2;
}

// The Face Recognition Service
service FaceRecognitionService {
  rpc Recognize(FaceRequest) returns (FaceResponse);
  rpc EnrollFace(EnrollFaceRequest) returns (EnrollFaceResponse);
  rpc GetAllEmployees(EmployeeListRequest) returns (EmployeeListResponse);
  rpc DeleteEmployee(DeleteRequest) returns (DeleteEmployeeResponse);
}