persongroupperson.go

package face

// Copyright (c) Microsoft and contributors.  All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Code generated by Microsoft (R) AutoRest Code Generator.
// Changes may cause incorrect behavior and will be lost if the code is regenerated.

import (
	"context"
	"github.com/Azure/go-autorest/autorest"
	"github.com/Azure/go-autorest/autorest/azure"
	"github.com/Azure/go-autorest/autorest/validation"
	"github.com/Azure/go-autorest/tracing"
	"github.com/satori/go.uuid"
	"io"
	"net/http"
)

// PersonGroupPersonClient is the an API for face detection, verification, and identification.
type PersonGroupPersonClient struct {
	BaseClient
}

// NewPersonGroupPersonClient creates an instance of the PersonGroupPersonClient client.
func NewPersonGroupPersonClient(endpoint string) PersonGroupPersonClient {
	return PersonGroupPersonClient{New(endpoint)}
}

// AddFaceFromStream add a face to a person into a person group for face identification or verification. To deal with
// an image contains multiple faces, input face can be specified as an image with a targetFace rectangle. It returns a
// persistedFaceId representing the added face. No image will be stored. Only the extracted face feature will be stored
// on server until [PersonGroup PersonFace -
// Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroupperson/deleteface), [PersonGroup
// Person - Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroupperson/delete) or
// [PersonGroup - Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroup/delete) is called.
// <br /> Note persistedFaceId is different from faceId generated by [Face -
// Detect](https://docs.microsoft.com/rest/api/cognitiveservices/face/face/detectwithurl).
// *   Higher face image quality means better recognition precision. Please consider high-quality faces: frontal,
// clear, and face size is 200x200 pixels (100 pixels between eyes) or bigger.
// *   Each person entry can hold up to 248 faces.
// *   JPEG, PNG, GIF (the first frame), and BMP format are supported. The allowed image file size is from 1KB to 6MB.
// *   "targetFace" rectangle should contain one face. Zero or multiple faces will be regarded as an error. If the
// provided "targetFace" rectangle is not returned from [Face -
// Detect](https://docs.microsoft.com/rest/api/cognitiveservices/face/face/detectwithurl), there’s no guarantee to
// detect and add the face successfully.
// *   Out of detectable face size (36x36 - 4096x4096 pixels), large head-pose, or large occlusions will cause
// failures.
// *   Adding/deleting faces to/from a same person will be processed sequentially. Adding/deleting faces to/from
// different persons are processed in parallel.
// * The minimum detectable face size is 36x36 pixels in an image no larger than 1920x1080 pixels. Images with
// dimensions higher than 1920x1080 pixels will need a proportionally larger minimum face size.
// * Different 'detectionModel' values can be provided. To use and compare different detection models, please refer to
// [How to specify a detection
// model](https://docs.microsoft.com/azure/cognitive-services/face/face-api-how-to-topics/specify-detection-model)
// | Model | Recommended use-case(s) |
// | ---------- | -------- |
// | 'detection_01': | The default detection model for [PersonGroup Person - Add
// Face](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroupperson/addfacefromurl). Recommend for
// near frontal face detection. For scenarios with exceptionally large angle (head-pose) faces, occluded faces or wrong
// image orientation, the faces in such cases may not be detected. |
// | 'detection_02': | Detection model released in 2019 May with improved accuracy especially on small, side and blurry
// faces. |
// Parameters:
// personGroupID - id referencing a particular person group.
// personID - id referencing a particular person.
// imageParameter - an image stream.
// userData - user-specified data about the face for any purpose. The maximum length is 1KB.
// targetFace - a face rectangle to specify the target face to be added to a person in the format of
// "targetFace=left,top,width,height". E.g. "targetFace=10,10,100,100". If there is more than one face in the
// image, targetFace is required to specify which face to add. No targetFace means there is only one face
// detected in the entire image.
// detectionModel - name of detection model. Detection model is used to detect faces in the submitted image. A
// detection model name can be provided when performing Face - Detect or (Large)FaceList - Add Face or
// (Large)PersonGroup - Add Face. The default value is 'detection_01', if another model is needed, please
// explicitly specify it.
func (client PersonGroupPersonClient) AddFaceFromStream(ctx context.Context, personGroupID string, personID uuid.UUID, imageParameter io.ReadCloser, userData string, targetFace []int32, detectionModel DetectionModel) (result PersistedFace, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.AddFaceFromStream")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}},
		{TargetValue: userData,
			Constraints: []validation.Constraint{{Target: "userData", Name: validation.Empty, Rule: false,
				Chain: []validation.Constraint{{Target: "userData", Name: validation.MaxLength, Rule: 1024, Chain: nil}}}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "AddFaceFromStream", err.Error())
	}

	req, err := client.AddFaceFromStreamPreparer(ctx, personGroupID, personID, imageParameter, userData, targetFace, detectionModel)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "AddFaceFromStream", nil, "Failure preparing request")
		return
	}

	resp, err := client.AddFaceFromStreamSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "AddFaceFromStream", resp, "Failure sending request")
		return
	}

	result, err = client.AddFaceFromStreamResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "AddFaceFromStream", resp, "Failure responding to request")
	}

	return
}

// AddFaceFromStreamPreparer prepares the AddFaceFromStream request.
func (client PersonGroupPersonClient) AddFaceFromStreamPreparer(ctx context.Context, personGroupID string, personID uuid.UUID, imageParameter io.ReadCloser, userData string, targetFace []int32, detectionModel DetectionModel) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"personGroupId": autorest.Encode("path", personGroupID),
		"personId":      autorest.Encode("path", personID),
	}

	queryParameters := map[string]interface{}{}
	if len(userData) > 0 {
		queryParameters["userData"] = autorest.Encode("query", userData)
	}
	if targetFace != nil && len(targetFace) > 0 {
		queryParameters["targetFace"] = autorest.Encode("query", targetFace, ",")
	}
	if len(string(detectionModel)) > 0 {
		queryParameters["detectionModel"] = autorest.Encode("query", detectionModel)
	} else {
		queryParameters["detectionModel"] = autorest.Encode("query", "detection_01")
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/octet-stream"),
		autorest.AsPost(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons/{personId}/persistedfaces", pathParameters),
		autorest.WithFile(imageParameter),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// AddFaceFromStreamSender sends the AddFaceFromStream request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) AddFaceFromStreamSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// AddFaceFromStreamResponder handles the response to the AddFaceFromStream request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) AddFaceFromStreamResponder(resp *http.Response) (result PersistedFace, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// AddFaceFromURL add a face to a person into a person group for face identification or verification. To deal with an
// image contains multiple faces, input face can be specified as an image with a targetFace rectangle. It returns a
// persistedFaceId representing the added face. No image will be stored. Only the extracted face feature will be stored
// on server until [PersonGroup PersonFace -
// Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroupperson/deleteface), [PersonGroup
// Person - Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroupperson/delete) or
// [PersonGroup - Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroup/delete) is called.
// <br /> Note persistedFaceId is different from faceId generated by [Face -
// Detect](https://docs.microsoft.com/rest/api/cognitiveservices/face/face/detectwithurl).
// *   Higher face image quality means better recognition precision. Please consider high-quality faces: frontal,
// clear, and face size is 200x200 pixels (100 pixels between eyes) or bigger.
// *   Each person entry can hold up to 248 faces.
// *   JPEG, PNG, GIF (the first frame), and BMP format are supported. The allowed image file size is from 1KB to 6MB.
// *   "targetFace" rectangle should contain one face. Zero or multiple faces will be regarded as an error. If the
// provided "targetFace" rectangle is not returned from [Face -
// Detect](https://docs.microsoft.com/rest/api/cognitiveservices/face/face/detectwithurl), there’s no guarantee to
// detect and add the face successfully.
// *   Out of detectable face size (36x36 - 4096x4096 pixels), large head-pose, or large occlusions will cause
// failures.
// *   Adding/deleting faces to/from a same person will be processed sequentially. Adding/deleting faces to/from
// different persons are processed in parallel.
// * The minimum detectable face size is 36x36 pixels in an image no larger than 1920x1080 pixels. Images with
// dimensions higher than 1920x1080 pixels will need a proportionally larger minimum face size.
// * Different 'detectionModel' values can be provided. To use and compare different detection models, please refer to
// [How to specify a detection
// model](https://docs.microsoft.com/azure/cognitive-services/face/face-api-how-to-topics/specify-detection-model)
// | Model | Recommended use-case(s) |
// | ---------- | -------- |
// | 'detection_01': | The default detection model for [PersonGroup Person - Add
// Face](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroupperson/addfacefromurl). Recommend for
// near frontal face detection. For scenarios with exceptionally large angle (head-pose) faces, occluded faces or wrong
// image orientation, the faces in such cases may not be detected. |
// | 'detection_02': | Detection model released in 2019 May with improved accuracy especially on small, side and blurry
// faces. |
// Parameters:
// personGroupID - id referencing a particular person group.
// personID - id referencing a particular person.
// imageURL - a JSON document with a URL pointing to the image that is to be analyzed.
// userData - user-specified data about the face for any purpose. The maximum length is 1KB.
// targetFace - a face rectangle to specify the target face to be added to a person in the format of
// "targetFace=left,top,width,height". E.g. "targetFace=10,10,100,100". If there is more than one face in the
// image, targetFace is required to specify which face to add. No targetFace means there is only one face
// detected in the entire image.
// detectionModel - name of detection model. Detection model is used to detect faces in the submitted image. A
// detection model name can be provided when performing Face - Detect or (Large)FaceList - Add Face or
// (Large)PersonGroup - Add Face. The default value is 'detection_01', if another model is needed, please
// explicitly specify it.
func (client PersonGroupPersonClient) AddFaceFromURL(ctx context.Context, personGroupID string, personID uuid.UUID, imageURL ImageURL, userData string, targetFace []int32, detectionModel DetectionModel) (result PersistedFace, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.AddFaceFromURL")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}},
		{TargetValue: userData,
			Constraints: []validation.Constraint{{Target: "userData", Name: validation.Empty, Rule: false,
				Chain: []validation.Constraint{{Target: "userData", Name: validation.MaxLength, Rule: 1024, Chain: nil}}}}},
		{TargetValue: imageURL,
			Constraints: []validation.Constraint{{Target: "imageURL.URL", Name: validation.Null, Rule: true, Chain: nil}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "AddFaceFromURL", err.Error())
	}

	req, err := client.AddFaceFromURLPreparer(ctx, personGroupID, personID, imageURL, userData, targetFace, detectionModel)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "AddFaceFromURL", nil, "Failure preparing request")
		return
	}

	resp, err := client.AddFaceFromURLSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "AddFaceFromURL", resp, "Failure sending request")
		return
	}

	result, err = client.AddFaceFromURLResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "AddFaceFromURL", resp, "Failure responding to request")
	}

	return
}

// AddFaceFromURLPreparer prepares the AddFaceFromURL request.
func (client PersonGroupPersonClient) AddFaceFromURLPreparer(ctx context.Context, personGroupID string, personID uuid.UUID, imageURL ImageURL, userData string, targetFace []int32, detectionModel DetectionModel) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"personGroupId": autorest.Encode("path", personGroupID),
		"personId":      autorest.Encode("path", personID),
	}

	queryParameters := map[string]interface{}{}
	if len(userData) > 0 {
		queryParameters["userData"] = autorest.Encode("query", userData)
	}
	if targetFace != nil && len(targetFace) > 0 {
		queryParameters["targetFace"] = autorest.Encode("query", targetFace, ",")
	}
	if len(string(detectionModel)) > 0 {
		queryParameters["detectionModel"] = autorest.Encode("query", detectionModel)
	} else {
		queryParameters["detectionModel"] = autorest.Encode("query", "detection_01")
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPost(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons/{personId}/persistedfaces", pathParameters),
		autorest.WithJSON(imageURL),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// AddFaceFromURLSender sends the AddFaceFromURL request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) AddFaceFromURLSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// AddFaceFromURLResponder handles the response to the AddFaceFromURL request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) AddFaceFromURLResponder(resp *http.Response) (result PersistedFace, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// Create create a new person in a specified person group.
// Parameters:
// personGroupID - id referencing a particular person group.
// body - request body for creating new person.
func (client PersonGroupPersonClient) Create(ctx context.Context, personGroupID string, body NameAndUserDataContract) (result Person, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.Create")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}},
		{TargetValue: body,
			Constraints: []validation.Constraint{{Target: "body.Name", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "body.Name", Name: validation.MaxLength, Rule: 128, Chain: nil}}},
				{Target: "body.UserData", Name: validation.Null, Rule: false,
					Chain: []validation.Constraint{{Target: "body.UserData", Name: validation.MaxLength, Rule: 16384, Chain: nil}}}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "Create", err.Error())
	}

	req, err := client.CreatePreparer(ctx, personGroupID, body)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Create", nil, "Failure preparing request")
		return
	}

	resp, err := client.CreateSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Create", resp, "Failure sending request")
		return
	}

	result, err = client.CreateResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Create", resp, "Failure responding to request")
	}

	return
}

// CreatePreparer prepares the Create request.
func (client PersonGroupPersonClient) CreatePreparer(ctx context.Context, personGroupID string, body NameAndUserDataContract) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"personGroupId": autorest.Encode("path", personGroupID),
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPost(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons", pathParameters),
		autorest.WithJSON(body))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CreateSender sends the Create request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) CreateSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// CreateResponder handles the response to the Create request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) CreateResponder(resp *http.Response) (result Person, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// Delete delete an existing person from a person group. The persistedFaceId, userData, person name and face feature in
// the person entry will all be deleted.
// Parameters:
// personGroupID - id referencing a particular person group.
// personID - id referencing a particular person.
func (client PersonGroupPersonClient) Delete(ctx context.Context, personGroupID string, personID uuid.UUID) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.Delete")
		defer func() {
			sc := -1
			if result.Response != nil {
				sc = result.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "Delete", err.Error())
	}

	req, err := client.DeletePreparer(ctx, personGroupID, personID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Delete", nil, "Failure preparing request")
		return
	}

	resp, err := client.DeleteSender(req)
	if err != nil {
		result.Response = resp
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Delete", resp, "Failure sending request")
		return
	}

	result, err = client.DeleteResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Delete", resp, "Failure responding to request")
	}

	return
}

// DeletePreparer prepares the Delete request.
func (client PersonGroupPersonClient) DeletePreparer(ctx context.Context, personGroupID string, personID uuid.UUID) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"personGroupId": autorest.Encode("path", personGroupID),
		"personId":      autorest.Encode("path", personID),
	}

	preparer := autorest.CreatePreparer(
		autorest.AsDelete(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons/{personId}", pathParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// DeleteSender sends the Delete request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) DeleteSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// DeleteResponder handles the response to the Delete request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) DeleteResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByClosing())
	result.Response = resp
	return
}

// DeleteFace delete a face from a person in a person group by specified personGroupId, personId and persistedFaceId.
// <br /> Adding/deleting faces to/from a same person will be processed sequentially. Adding/deleting faces to/from
// different persons are processed in parallel.
// Parameters:
// personGroupID - id referencing a particular person group.
// personID - id referencing a particular person.
// persistedFaceID - id referencing a particular persistedFaceId of an existing face.
func (client PersonGroupPersonClient) DeleteFace(ctx context.Context, personGroupID string, personID uuid.UUID, persistedFaceID uuid.UUID) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.DeleteFace")
		defer func() {
			sc := -1
			if result.Response != nil {
				sc = result.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "DeleteFace", err.Error())
	}

	req, err := client.DeleteFacePreparer(ctx, personGroupID, personID, persistedFaceID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "DeleteFace", nil, "Failure preparing request")
		return
	}

	resp, err := client.DeleteFaceSender(req)
	if err != nil {
		result.Response = resp
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "DeleteFace", resp, "Failure sending request")
		return
	}

	result, err = client.DeleteFaceResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "DeleteFace", resp, "Failure responding to request")
	}

	return
}

// DeleteFacePreparer prepares the DeleteFace request.
func (client PersonGroupPersonClient) DeleteFacePreparer(ctx context.Context, personGroupID string, personID uuid.UUID, persistedFaceID uuid.UUID) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"persistedFaceId": autorest.Encode("path", persistedFaceID),
		"personGroupId":   autorest.Encode("path", personGroupID),
		"personId":        autorest.Encode("path", personID),
	}

	preparer := autorest.CreatePreparer(
		autorest.AsDelete(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons/{personId}/persistedfaces/{persistedFaceId}", pathParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// DeleteFaceSender sends the DeleteFace request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) DeleteFaceSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// DeleteFaceResponder handles the response to the DeleteFace request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) DeleteFaceResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByClosing())
	result.Response = resp
	return
}

// Get retrieve a person's information, including registered persisted faces, name and userData.
// Parameters:
// personGroupID - id referencing a particular person group.
// personID - id referencing a particular person.
func (client PersonGroupPersonClient) Get(ctx context.Context, personGroupID string, personID uuid.UUID) (result Person, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.Get")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "Get", err.Error())
	}

	req, err := client.GetPreparer(ctx, personGroupID, personID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Get", nil, "Failure preparing request")
		return
	}

	resp, err := client.GetSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Get", resp, "Failure sending request")
		return
	}

	result, err = client.GetResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Get", resp, "Failure responding to request")
	}

	return
}

// GetPreparer prepares the Get request.
func (client PersonGroupPersonClient) GetPreparer(ctx context.Context, personGroupID string, personID uuid.UUID) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"personGroupId": autorest.Encode("path", personGroupID),
		"personId":      autorest.Encode("path", personID),
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons/{personId}", pathParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// GetSender sends the Get request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) GetSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// GetResponder handles the response to the Get request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) GetResponder(resp *http.Response) (result Person, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// GetFace retrieve information about a persisted face (specified by persistedFaceId, personId and its belonging
// personGroupId).
// Parameters:
// personGroupID - id referencing a particular person group.
// personID - id referencing a particular person.
// persistedFaceID - id referencing a particular persistedFaceId of an existing face.
func (client PersonGroupPersonClient) GetFace(ctx context.Context, personGroupID string, personID uuid.UUID, persistedFaceID uuid.UUID) (result PersistedFace, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.GetFace")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "GetFace", err.Error())
	}

	req, err := client.GetFacePreparer(ctx, personGroupID, personID, persistedFaceID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "GetFace", nil, "Failure preparing request")
		return
	}

	resp, err := client.GetFaceSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "GetFace", resp, "Failure sending request")
		return
	}

	result, err = client.GetFaceResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "GetFace", resp, "Failure responding to request")
	}

	return
}

// GetFacePreparer prepares the GetFace request.
func (client PersonGroupPersonClient) GetFacePreparer(ctx context.Context, personGroupID string, personID uuid.UUID, persistedFaceID uuid.UUID) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"persistedFaceId": autorest.Encode("path", persistedFaceID),
		"personGroupId":   autorest.Encode("path", personGroupID),
		"personId":        autorest.Encode("path", personID),
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons/{personId}/persistedfaces/{persistedFaceId}", pathParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// GetFaceSender sends the GetFace request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) GetFaceSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// GetFaceResponder handles the response to the GetFace request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) GetFaceResponder(resp *http.Response) (result PersistedFace, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// List list all persons in a person group, and retrieve person information (including personId, name, userData and
// persistedFaceIds of registered faces of the person).
// Parameters:
// personGroupID - id referencing a particular person group.
// start - starting person id to return (used to list a range of persons).
// top - number of persons to return starting with the person id indicated by the 'start' parameter.
func (client PersonGroupPersonClient) List(ctx context.Context, personGroupID string, start string, top *int32) (result ListPerson, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.List")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}},
		{TargetValue: top,
			Constraints: []validation.Constraint{{Target: "top", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "top", Name: validation.InclusiveMaximum, Rule: int64(1000), Chain: nil},
					{Target: "top", Name: validation.InclusiveMinimum, Rule: int64(1), Chain: nil},
				}}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "List", err.Error())
	}

	req, err := client.ListPreparer(ctx, personGroupID, start, top)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "List", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "List", resp, "Failure sending request")
		return
	}

	result, err = client.ListResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "List", resp, "Failure responding to request")
	}

	return
}

// ListPreparer prepares the List request.
func (client PersonGroupPersonClient) ListPreparer(ctx context.Context, personGroupID string, start string, top *int32) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"personGroupId": autorest.Encode("path", personGroupID),
	}

	queryParameters := map[string]interface{}{}
	if len(start) > 0 {
		queryParameters["start"] = autorest.Encode("query", start)
	}
	if top != nil {
		queryParameters["top"] = autorest.Encode("query", *top)
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListSender sends the List request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) ListSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// ListResponder handles the response to the List request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) ListResponder(resp *http.Response) (result ListPerson, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result.Value),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// Update update name or userData of a person.
// Parameters:
// personGroupID - id referencing a particular person group.
// personID - id referencing a particular person.
// body - request body for person update operation.
func (client PersonGroupPersonClient) Update(ctx context.Context, personGroupID string, personID uuid.UUID, body NameAndUserDataContract) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.Update")
		defer func() {
			sc := -1
			if result.Response != nil {
				sc = result.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "Update", err.Error())
	}

	req, err := client.UpdatePreparer(ctx, personGroupID, personID, body)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Update", nil, "Failure preparing request")
		return
	}

	resp, err := client.UpdateSender(req)
	if err != nil {
		result.Response = resp
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Update", resp, "Failure sending request")
		return
	}

	result, err = client.UpdateResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "Update", resp, "Failure responding to request")
	}

	return
}

// UpdatePreparer prepares the Update request.
func (client PersonGroupPersonClient) UpdatePreparer(ctx context.Context, personGroupID string, personID uuid.UUID, body NameAndUserDataContract) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"personGroupId": autorest.Encode("path", personGroupID),
		"personId":      autorest.Encode("path", personID),
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPatch(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons/{personId}", pathParameters),
		autorest.WithJSON(body))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// UpdateSender sends the Update request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) UpdateSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// UpdateResponder handles the response to the Update request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) UpdateResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByClosing())
	result.Response = resp
	return
}

// UpdateFace add a face to a person into a person group for face identification or verification. To deal with an image
// contains multiple faces, input face can be specified as an image with a targetFace rectangle. It returns a
// persistedFaceId representing the added face. No image will be stored. Only the extracted face feature will be stored
// on server until [PersonGroup PersonFace -
// Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroupperson/deleteface), [PersonGroup
// Person - Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroupperson/delete) or
// [PersonGroup - Delete](https://docs.microsoft.com/rest/api/cognitiveservices/face/persongroup/delete) is called.
// <br /> Note persistedFaceId is different from faceId generated by [Face -
// Detect](https://docs.microsoft.com/rest/api/cognitiveservices/face/face/detectwithurl).
// * Higher face image quality means better recognition precision. Please consider high-quality faces: frontal, clear,
// and face size is 200x200 pixels (100 pixels between eyes) or bigger.
// * Each person entry can hold up to 248 faces.
// * JPEG, PNG, GIF (the first frame), and BMP format are supported. The allowed image file size is from 1KB to 6MB.
// * "targetFace" rectangle should contain one face. Zero or multiple faces will be regarded as an error. If the
// provided "targetFace" rectangle is not returned from [Face -
// Detect](https://docs.microsoft.com/rest/api/cognitiveservices/face/face/detectwithurl), there’s no guarantee to
// detect and add the face successfully.
// * Out of detectable face size (36x36 - 4096x4096 pixels), large head-pose, or large occlusions will cause failures.
// * Adding/deleting faces to/from a same person will be processed sequentially. Adding/deleting faces to/from
// different persons are processed in parallel.
// Parameters:
// personGroupID - id referencing a particular person group.
// personID - id referencing a particular person.
// persistedFaceID - id referencing a particular persistedFaceId of an existing face.
// body - request body for updating persisted face.
func (client PersonGroupPersonClient) UpdateFace(ctx context.Context, personGroupID string, personID uuid.UUID, persistedFaceID uuid.UUID, body UpdateFaceRequest) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/PersonGroupPersonClient.UpdateFace")
		defer func() {
			sc := -1
			if result.Response != nil {
				sc = result.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: personGroupID,
			Constraints: []validation.Constraint{{Target: "personGroupID", Name: validation.MaxLength, Rule: 64, Chain: nil},
				{Target: "personGroupID", Name: validation.Pattern, Rule: `^[a-z0-9-_]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("face.PersonGroupPersonClient", "UpdateFace", err.Error())
	}

	req, err := client.UpdateFacePreparer(ctx, personGroupID, personID, persistedFaceID, body)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "UpdateFace", nil, "Failure preparing request")
		return
	}

	resp, err := client.UpdateFaceSender(req)
	if err != nil {
		result.Response = resp
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "UpdateFace", resp, "Failure sending request")
		return
	}

	result, err = client.UpdateFaceResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "face.PersonGroupPersonClient", "UpdateFace", resp, "Failure responding to request")
	}

	return
}

// UpdateFacePreparer prepares the UpdateFace request.
func (client PersonGroupPersonClient) UpdateFacePreparer(ctx context.Context, personGroupID string, personID uuid.UUID, persistedFaceID uuid.UUID, body UpdateFaceRequest) (*http.Request, error) {
	urlParameters := map[string]interface{}{
		"Endpoint": client.Endpoint,
	}

	pathParameters := map[string]interface{}{
		"persistedFaceId": autorest.Encode("path", persistedFaceID),
		"personGroupId":   autorest.Encode("path", personGroupID),
		"personId":        autorest.Encode("path", personID),
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPatch(),
		autorest.WithCustomBaseURL("{Endpoint}/face/v1.0", urlParameters),
		autorest.WithPathParameters("/persongroups/{personGroupId}/persons/{personId}/persistedfaces/{persistedFaceId}", pathParameters),
		autorest.WithJSON(body))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// UpdateFaceSender sends the UpdateFace request. The method will close the
// http.Response Body if it receives an error.
func (client PersonGroupPersonClient) UpdateFaceSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// UpdateFaceResponder handles the response to the UpdateFace request. The method always
// closes the http.Response Body.
func (client PersonGroupPersonClient) UpdateFaceResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByClosing())
	result.Response = resp
	return
}