// 假设已经初始化了FaceServiceClient faceClient

// 1. 创建PersonGroup
string personGroupId = "mygroup";
await faceClient.PersonGroup.CreateAsync(personGroupId, "My Group");

// 2. 创建Person
Person person = await faceClient.PersonGroupPerson.CreateAsync(personGroupId, "John Doe");

// 3. 检测人脸并添加到Person
string imageUrl = "https://example.com/john.jpg";
IList<DetectedFace> detectedFaces = await faceClient.Face.DetectWithUrlAsync(imageUrl);
string faceId = detectedFaces[0].FaceId;

// 4. 添加人脸并获取PersistedFaceId
PersistedFace persistedFace = await faceClient.PersonGroupPerson.AddFaceFromUrlAsync(
    personGroupId, person.PersonId, imageUrl, faceId.ToString());

// 现在persistedFace.PersistedFaceId就是持久化的人脸ID
Console.WriteLine($"PersistedFaceId: {persistedFace.PersistedFaceId}");

// 5. 训练PersonGroup
await faceClient.PersonGroup.TrainAsync(personGroupId);

// 6. 识别时使用PersistedFaceIds进行分组
IList<DetectedFace> testFaces = await faceClient.Face.DetectWithUrlAsync("https://example.com/test.jpg");
var faceIds = testFaces.Select(face => face.FaceId).ToList();
IList<IdentifyResult> results = await faceClient.Face.IdentifyAsync(faceIds, personGroupId);

foreach (var result in results)
{
    if (result.Candidates.Count > 0)
    {
        Console.WriteLine($"识别到PersonId: {result.Candidates[0].PersonId}");
        // 可以进一步获取Person信息
        Person identifiedPerson = await faceClient.PersonGroupPerson.GetAsync(personGroupId, result.Candidates[0].PersonId);
        Console.WriteLine($"姓名: {identifiedPerson.Name}");
    }
}