// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
// Code generated by Microsoft (R) Go Code Generator. DO NOT EDIT.

package armapimanagement

import (
	"context"
	"errors"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/arm"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
	"net/http"
	"net/url"
	"strconv"
	"strings"
)

// ProductClient contains the methods for the Product group.
// Don't use this type directly, use NewProductClient() instead.
//
// Generated from API version 2025-09-01-preview
type ProductClient struct {
	internal       *arm.Client
	subscriptionID string
}

// NewProductClient creates a new instance of ProductClient with the specified values.
//   - subscriptionID - The ID of the target subscription. The value must be an UUID.
//   - credential - used to authorize requests. Usually a credential from azidentity.
//   - options - Contains optional client configuration. Pass nil to accept the default values.
func NewProductClient(subscriptionID string, credential azcore.TokenCredential, options *arm.ClientOptions) (*ProductClient, error) {
	cl, err := arm.NewClient(moduleName, moduleVersion, credential, options)
	if err != nil {
		return nil, err
	}
	client := &ProductClient{
		subscriptionID: subscriptionID,
		internal:       cl,
	}
	return client, nil
}

// CreateOrUpdate - Creates or Updates a product.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - serviceName - The name of the API Management service.
//   - productID - Product identifier. Must be unique in the current API Management service instance.
//   - parameters - Create or update parameters.
//   - options - ProductClientCreateOrUpdateOptions contains the optional parameters for the ProductClient.CreateOrUpdate method.
func (client *ProductClient) CreateOrUpdate(ctx context.Context, resourceGroupName string, serviceName string, productID string, parameters ProductContract, options *ProductClientCreateOrUpdateOptions) (ProductClientCreateOrUpdateResponse, error) {
	var err error
	const operationName = "ProductClient.CreateOrUpdate"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.createOrUpdateCreateRequest(ctx, resourceGroupName, serviceName, productID, parameters, options)
	if err != nil {
		return ProductClientCreateOrUpdateResponse{}, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return ProductClientCreateOrUpdateResponse{}, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK, http.StatusCreated) {
		err = runtime.NewResponseError(httpResp)
		return ProductClientCreateOrUpdateResponse{}, err
	}
	resp, err := client.createOrUpdateHandleResponse(httpResp)
	return resp, err
}

// createOrUpdateCreateRequest creates the CreateOrUpdate request.
func (client *ProductClient) createOrUpdateCreateRequest(ctx context.Context, resourceGroupName string, serviceName string, productID string, parameters ProductContract, options *ProductClientCreateOrUpdateOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/products/{productId}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if serviceName == "" {
		return nil, errors.New("parameter serviceName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{serviceName}", url.PathEscape(serviceName))
	if productID == "" {
		return nil, errors.New("parameter productID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{productId}", url.PathEscape(productID))
	req, err := runtime.NewRequest(ctx, http.MethodPut, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901Preview)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	if options != nil && options.IfMatch != nil {
		req.Raw().Header["If-Match"] = []string{*options.IfMatch}
	}
	req.Raw().Header["Content-Type"] = []string{"application/json"}
	if err := runtime.MarshalAsJSON(req, parameters); err != nil {
		return nil, err
	}
	return req, nil
}

// createOrUpdateHandleResponse handles the CreateOrUpdate response.
func (client *ProductClient) createOrUpdateHandleResponse(resp *http.Response) (ProductClientCreateOrUpdateResponse, error) {
	result := ProductClientCreateOrUpdateResponse{}
	if val := resp.Header.Get("ETag"); val != "" {
		result.ETag = &val
	}
	if err := runtime.UnmarshalAsJSON(resp, &result.ProductContract); err != nil {
		return ProductClientCreateOrUpdateResponse{}, err
	}
	return result, nil
}

// Delete - Delete product.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - serviceName - The name of the API Management service.
//   - productID - Product identifier. Must be unique in the current API Management service instance.
//   - ifMatch - ETag of the Entity. ETag should match the current entity state from the header response of the GET request or
//     it should be * for unconditional update.
//   - options - ProductClientDeleteOptions contains the optional parameters for the ProductClient.Delete method.
func (client *ProductClient) Delete(ctx context.Context, resourceGroupName string, serviceName string, productID string, ifMatch string, options *ProductClientDeleteOptions) (ProductClientDeleteResponse, error) {
	var err error
	const operationName = "ProductClient.Delete"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.deleteCreateRequest(ctx, resourceGroupName, serviceName, productID, ifMatch, options)
	if err != nil {
		return ProductClientDeleteResponse{}, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return ProductClientDeleteResponse{}, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK, http.StatusNoContent) {
		err = runtime.NewResponseError(httpResp)
		return ProductClientDeleteResponse{}, err
	}
	return ProductClientDeleteResponse{}, nil
}

// deleteCreateRequest creates the Delete request.
func (client *ProductClient) deleteCreateRequest(ctx context.Context, resourceGroupName string, serviceName string, productID string, ifMatch string, options *ProductClientDeleteOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/products/{productId}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if serviceName == "" {
		return nil, errors.New("parameter serviceName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{serviceName}", url.PathEscape(serviceName))
	if productID == "" {
		return nil, errors.New("parameter productID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{productId}", url.PathEscape(productID))
	req, err := runtime.NewRequest(ctx, http.MethodDelete, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901Preview)
	if options != nil && options.DeleteSubscriptions != nil {
		reqQP.Set("deleteSubscriptions", strconv.FormatBool(*options.DeleteSubscriptions))
	}
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["If-Match"] = []string{ifMatch}
	return req, nil
}

// Get - Gets the details of the product specified by its identifier.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - serviceName - The name of the API Management service.
//   - productID - Product identifier. Must be unique in the current API Management service instance.
//   - options - ProductClientGetOptions contains the optional parameters for the ProductClient.Get method.
func (client *ProductClient) Get(ctx context.Context, resourceGroupName string, serviceName string, productID string, options *ProductClientGetOptions) (ProductClientGetResponse, error) {
	var err error
	const operationName = "ProductClient.Get"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.getCreateRequest(ctx, resourceGroupName, serviceName, productID, options)
	if err != nil {
		return ProductClientGetResponse{}, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return ProductClientGetResponse{}, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK) {
		err = runtime.NewResponseError(httpResp)
		return ProductClientGetResponse{}, err
	}
	resp, err := client.getHandleResponse(httpResp)
	return resp, err
}

// getCreateRequest creates the Get request.
func (client *ProductClient) getCreateRequest(ctx context.Context, resourceGroupName string, serviceName string, productID string, _ *ProductClientGetOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/products/{productId}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if serviceName == "" {
		return nil, errors.New("parameter serviceName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{serviceName}", url.PathEscape(serviceName))
	if productID == "" {
		return nil, errors.New("parameter productID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{productId}", url.PathEscape(productID))
	req, err := runtime.NewRequest(ctx, http.MethodGet, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901Preview)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	return req, nil
}

// getHandleResponse handles the Get response.
func (client *ProductClient) getHandleResponse(resp *http.Response) (ProductClientGetResponse, error) {
	result := ProductClientGetResponse{}
	if val := resp.Header.Get("ETag"); val != "" {
		result.ETag = &val
	}
	if err := runtime.UnmarshalAsJSON(resp, &result.ProductContract); err != nil {
		return ProductClientGetResponse{}, err
	}
	return result, nil
}

// GetEntityTag - Gets the entity state (Etag) version of the product specified by its identifier.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - serviceName - The name of the API Management service.
//   - productID - Product identifier. Must be unique in the current API Management service instance.
//   - options - ProductClientGetEntityTagOptions contains the optional parameters for the ProductClient.GetEntityTag method.
func (client *ProductClient) GetEntityTag(ctx context.Context, resourceGroupName string, serviceName string, productID string, options *ProductClientGetEntityTagOptions) (ProductClientGetEntityTagResponse, error) {
	var err error
	const operationName = "ProductClient.GetEntityTag"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.getEntityTagCreateRequest(ctx, resourceGroupName, serviceName, productID, options)
	if err != nil {
		return ProductClientGetEntityTagResponse{}, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return ProductClientGetEntityTagResponse{}, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK) {
		err = runtime.NewResponseError(httpResp)
		return ProductClientGetEntityTagResponse{}, err
	}
	resp, err := client.getEntityTagHandleResponse(httpResp)
	return resp, err
}

// getEntityTagCreateRequest creates the GetEntityTag request.
func (client *ProductClient) getEntityTagCreateRequest(ctx context.Context, resourceGroupName string, serviceName string, productID string, _ *ProductClientGetEntityTagOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/products/{productId}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if serviceName == "" {
		return nil, errors.New("parameter serviceName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{serviceName}", url.PathEscape(serviceName))
	if productID == "" {
		return nil, errors.New("parameter productID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{productId}", url.PathEscape(productID))
	req, err := runtime.NewRequest(ctx, http.MethodHead, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901Preview)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	return req, nil
}

// getEntityTagHandleResponse handles the GetEntityTag response.
func (client *ProductClient) getEntityTagHandleResponse(resp *http.Response) (ProductClientGetEntityTagResponse, error) {
	result := ProductClientGetEntityTagResponse{Success: resp.StatusCode >= 200 && resp.StatusCode < 300}
	if val := resp.Header.Get("ETag"); val != "" {
		result.ETag = &val
	}
	return result, nil
}

// NewListByServicePager - Lists a collection of products in the specified service instance.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - serviceName - The name of the API Management service.
//   - options - ProductClientListByServiceOptions contains the optional parameters for the ProductClient.NewListByServicePager
//     method.
func (client *ProductClient) NewListByServicePager(resourceGroupName string, serviceName string, options *ProductClientListByServiceOptions) *runtime.Pager[ProductClientListByServiceResponse] {
	return runtime.NewPager(runtime.PagingHandler[ProductClientListByServiceResponse]{
		More: func(page ProductClientListByServiceResponse) bool {
			return page.NextLink != nil && len(*page.NextLink) > 0
		},
		Fetcher: func(ctx context.Context, page *ProductClientListByServiceResponse) (ProductClientListByServiceResponse, error) {
			ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, "ProductClient.NewListByServicePager")
			nextLink := ""
			if page != nil {
				nextLink = *page.NextLink
			}
			resp, err := runtime.FetcherForNextLink(ctx, client.internal.Pipeline(), nextLink, func(ctx context.Context) (*policy.Request, error) {
				return client.listByServiceCreateRequest(ctx, resourceGroupName, serviceName, options)
			}, nil)
			if err != nil {
				return ProductClientListByServiceResponse{}, err
			}
			return client.listByServiceHandleResponse(resp)
		},
		Tracer: client.internal.Tracer(),
	})
}

// listByServiceCreateRequest creates the ListByService request.
func (client *ProductClient) listByServiceCreateRequest(ctx context.Context, resourceGroupName string, serviceName string, options *ProductClientListByServiceOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/products"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if serviceName == "" {
		return nil, errors.New("parameter serviceName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{serviceName}", url.PathEscape(serviceName))
	req, err := runtime.NewRequest(ctx, http.MethodGet, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	if options != nil && options.Filter != nil {
		reqQP.Set("$filter", *options.Filter)
	}
	if options != nil && options.Skip != nil {
		reqQP.Set("$skip", strconv.FormatInt(int64(*options.Skip), 10))
	}
	if options != nil && options.Top != nil {
		reqQP.Set("$top", strconv.FormatInt(int64(*options.Top), 10))
	}
	reqQP.Set("api-version", version20250901Preview)
	if options != nil && options.ExpandGroups != nil {
		reqQP.Set("expandGroups", strconv.FormatBool(*options.ExpandGroups))
	}
	if options != nil && options.Tags != nil {
		reqQP.Set("tags", *options.Tags)
	}
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	return req, nil
}

// listByServiceHandleResponse handles the ListByService response.
func (client *ProductClient) listByServiceHandleResponse(resp *http.Response) (ProductClientListByServiceResponse, error) {
	result := ProductClientListByServiceResponse{}
	if err := runtime.UnmarshalAsJSON(resp, &result.ProductCollection); err != nil {
		return ProductClientListByServiceResponse{}, err
	}
	return result, nil
}

// NewListByTagsPager - Lists a collection of products associated with tags.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - serviceName - The name of the API Management service.
//   - options - ProductClientListByTagsOptions contains the optional parameters for the ProductClient.NewListByTagsPager method.
func (client *ProductClient) NewListByTagsPager(resourceGroupName string, serviceName string, options *ProductClientListByTagsOptions) *runtime.Pager[ProductClientListByTagsResponse] {
	return runtime.NewPager(runtime.PagingHandler[ProductClientListByTagsResponse]{
		More: func(page ProductClientListByTagsResponse) bool {
			return page.NextLink != nil && len(*page.NextLink) > 0
		},
		Fetcher: func(ctx context.Context, page *ProductClientListByTagsResponse) (ProductClientListByTagsResponse, error) {
			ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, "ProductClient.NewListByTagsPager")
			nextLink := ""
			if page != nil {
				nextLink = *page.NextLink
			}
			resp, err := runtime.FetcherForNextLink(ctx, client.internal.Pipeline(), nextLink, func(ctx context.Context) (*policy.Request, error) {
				return client.listByTagsCreateRequest(ctx, resourceGroupName, serviceName, options)
			}, nil)
			if err != nil {
				return ProductClientListByTagsResponse{}, err
			}
			return client.listByTagsHandleResponse(resp)
		},
		Tracer: client.internal.Tracer(),
	})
}

// listByTagsCreateRequest creates the ListByTags request.
func (client *ProductClient) listByTagsCreateRequest(ctx context.Context, resourceGroupName string, serviceName string, options *ProductClientListByTagsOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/productsByTags"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if serviceName == "" {
		return nil, errors.New("parameter serviceName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{serviceName}", url.PathEscape(serviceName))
	req, err := runtime.NewRequest(ctx, http.MethodGet, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	if options != nil && options.Filter != nil {
		reqQP.Set("$filter", *options.Filter)
	}
	if options != nil && options.Skip != nil {
		reqQP.Set("$skip", strconv.FormatInt(int64(*options.Skip), 10))
	}
	if options != nil && options.Top != nil {
		reqQP.Set("$top", strconv.FormatInt(int64(*options.Top), 10))
	}
	reqQP.Set("api-version", version20250901Preview)
	if options != nil && options.IncludeNotTaggedProducts != nil {
		reqQP.Set("includeNotTaggedProducts", strconv.FormatBool(*options.IncludeNotTaggedProducts))
	}
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	return req, nil
}

// listByTagsHandleResponse handles the ListByTags response.
func (client *ProductClient) listByTagsHandleResponse(resp *http.Response) (ProductClientListByTagsResponse, error) {
	result := ProductClientListByTagsResponse{}
	if err := runtime.UnmarshalAsJSON(resp, &result.TagResourceCollection); err != nil {
		return ProductClientListByTagsResponse{}, err
	}
	return result, nil
}

// Update - Update existing product details.
// If the operation fails it returns an *azcore.ResponseError type.
//   - resourceGroupName - The name of the resource group. The name is case insensitive.
//   - serviceName - The name of the API Management service.
//   - productID - Product identifier. Must be unique in the current API Management service instance.
//   - ifMatch - ETag of the Entity. ETag should match the current entity state from the header response of the GET request or
//     it should be * for unconditional update.
//   - parameters - Update parameters.
//   - options - ProductClientUpdateOptions contains the optional parameters for the ProductClient.Update method.
func (client *ProductClient) Update(ctx context.Context, resourceGroupName string, serviceName string, productID string, ifMatch string, parameters ProductUpdateParameters, options *ProductClientUpdateOptions) (ProductClientUpdateResponse, error) {
	var err error
	const operationName = "ProductClient.Update"
	ctx = context.WithValue(ctx, runtime.CtxAPINameKey{}, operationName)
	ctx, endSpan := runtime.StartSpan(ctx, operationName, client.internal.Tracer(), nil)
	defer func() { endSpan(err) }()
	req, err := client.updateCreateRequest(ctx, resourceGroupName, serviceName, productID, ifMatch, parameters, options)
	if err != nil {
		return ProductClientUpdateResponse{}, err
	}
	httpResp, err := client.internal.Pipeline().Do(req)
	if err != nil {
		return ProductClientUpdateResponse{}, err
	}
	if !runtime.HasStatusCode(httpResp, http.StatusOK) {
		err = runtime.NewResponseError(httpResp)
		return ProductClientUpdateResponse{}, err
	}
	resp, err := client.updateHandleResponse(httpResp)
	return resp, err
}

// updateCreateRequest creates the Update request.
func (client *ProductClient) updateCreateRequest(ctx context.Context, resourceGroupName string, serviceName string, productID string, ifMatch string, parameters ProductUpdateParameters, _ *ProductClientUpdateOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/products/{productId}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if serviceName == "" {
		return nil, errors.New("parameter serviceName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{serviceName}", url.PathEscape(serviceName))
	if productID == "" {
		return nil, errors.New("parameter productID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{productId}", url.PathEscape(productID))
	req, err := runtime.NewRequest(ctx, http.MethodPatch, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", version20250901Preview)
	req.Raw().URL.RawQuery = strings.ReplaceAll(reqQP.Encode(), "+", "%20")
	req.Raw().Header["Accept"] = []string{"application/json"}
	req.Raw().Header["If-Match"] = []string{ifMatch}
	req.Raw().Header["Content-Type"] = []string{"application/json"}
	if err := runtime.MarshalAsJSON(req, parameters); err != nil {
		return nil, err
	}
	return req, nil
}

// updateHandleResponse handles the Update response.
func (client *ProductClient) updateHandleResponse(resp *http.Response) (ProductClientUpdateResponse, error) {
	result := ProductClientUpdateResponse{}
	if val := resp.Header.Get("ETag"); val != "" {
		result.ETag = &val
	}
	if err := runtime.UnmarshalAsJSON(resp, &result.ProductContract); err != nil {
		return ProductClientUpdateResponse{}, err
	}
	return result, nil
}
