service.go

package finding

import (
	"github.com/go-resty/resty/v2"
	"time"
)

// Service represents Ebay Finding API service
type Service struct {
	version         string
	endpoint        string
	globalID        string
	securityAppName string
	timeout         time.Duration
	pageLimit       int
}

// NewService creates new Ebay Finding API service
// API version according to EbayFindingAPIVersion (1.13.0)
// Default endpoint: EbayEndpointProduction (https://svcs.ebay.com/services/search/FindingService/v1)
// Default GlobalID: GlobalIDEbayUS (EBAY-US)
// Default Page Limit: DefaultItemsPerPage (100)
// Default timeout for requests: 10 seconds
func NewService(securityAppName string) *Service {
	s := &Service{
		version:         EbayFindingAPIVersion,
		securityAppName: securityAppName,
		timeout:         10 * time.Second,
	}
	s.WithEndpoint(EbayEndpointProduction)
	s.WithGlobalID(GlobalIDEbayUS)
	s.WithPageLimit(DefaultItemsPerPage)
	return s
}

// WithEndpoint changes endpoint for service
// You can add your own endpoint (for tests purposes)
func (s *Service) WithEndpoint(endpoint string) *Service {
	s.endpoint = endpoint
	return s
}

// WithGlobalID changes site for search
func (s *Service) WithGlobalID(globalID GlobalID) *Service {
	s.globalID = string(globalID)
	return s
}

// WithTimeout changes default timeout for search requests
func (s *Service) WithTimeout(timeout time.Duration) *Service {
	s.timeout = timeout
	return s
}

// WithPageLimit changes limit of items for any child req
func (s *Service) WithPageLimit(limit int) *Service {
	if limit < 1 {
		limit = 1
	} else {
		if limit > 100 {
			limit = 100
		}
	}

	s.pageLimit = limit
	return s
}

// creates new http client (resty)
func (s *Service) newHTTPClient() *resty.Client {
	return resty.New().
		SetHeader("X-EBAY-SOA-SERVICE-VERSION", s.version).
		//SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationFindItemsAdvanced)).
		SetHeader("X-EBAY-SOA-SECURITY-APPNAME", s.securityAppName).
		SetHeader("X-EBAY-SOA-REQUEST-DATA-FORMAT", EbayRequestDataFormat).
		SetHeader("X-EBAY-SOA-RESPONSE-DATA-FORMAT", EbayResponseDataFormat).
		SetHeader("X-EBAY-SOA-GLOBAL-ID", s.globalID).
		SetTimeout(s.timeout)
}

// NewAdvancedRequest creates new AdvancedRequest
func (s *Service) NewAdvancedRequest() *AdvancedRequest {
	req := AdvancedRequest{}
	req.Initialize()
	//req.Client = resty.New().
	//	SetHeader("X-EBAY-SOA-SERVICE-VERSION", s.version).
	//	SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationFindItemsAdvanced)).
	//	SetHeader("X-EBAY-SOA-SECURITY-APPNAME", s.securityAppName).
	//	SetHeader("X-EBAY-SOA-REQUEST-DATA-FORMAT", EbayRequestDataFormat).
	//	SetHeader("X-EBAY-SOA-RESPONSE-DATA-FORMAT", EbayResponseDataFormat).
	//	SetHeader("X-EBAY-SOA-GLOBAL-ID", s.globalID).
	//	SetTimeout(s.timeout)
	req.Client = s.newHTTPClient().
		SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationFindItemsAdvanced))
	req.URL = s.endpoint
	req.WithPageLimit(s.pageLimit)
	return &req
}

// NewByCategoryRequest creates new ByCategoryRequest
func (s *Service) NewByCategoryRequest() *ByCategoryRequest {
	req := ByCategoryRequest{}
	req.Initialize()
	req.Client = s.newHTTPClient().
		SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationFindItemsByCategory))
	req.URL = s.endpoint
	req.WithPageLimit(s.pageLimit)
	return &req
}

// NewByKeywordsRequest creates new ByKeywordsRequest
func (s *Service) NewByKeywordsRequest() *ByKeywordsRequest {
	req := ByKeywordsRequest{}
	req.Initialize()
	req.Client = s.newHTTPClient().
		SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationFindItemsByKeywords))
	req.URL = s.endpoint
	req.WithPageLimit(s.pageLimit)
	return &req
}

// NewByProductRequest creates new ByProductRequest
func (s *Service) NewByProductRequest() *ByProductRequest {
	req := ByProductRequest{}
	req.Initialize()
	req.Client = s.newHTTPClient().
		SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationFindItemsByProduct))
	req.URL = s.endpoint
	req.WithPageLimit(s.pageLimit)
	return &req
}

// NewInEbayStoresRequest creates new InEbayStoresRequest
func (s *Service) NewInEbayStoresRequest() *InEbayStoresRequest {
	req := InEbayStoresRequest{}
	req.Initialize()
	req.Client = s.newHTTPClient().
		SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationFindItemsIneBayStores))
	req.URL = s.endpoint
	req.WithPageLimit(s.pageLimit)
	return &req
}

// NewGetHistogramsRequest creates new GetHistogramsRequest
func (s *Service) NewGetHistogramsRequest() *GetHistogramsRequest {
	req := GetHistogramsRequest{}
	req.Client = s.newHTTPClient().
		SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationGetHistograms))
	req.URL = s.endpoint
	return &req
}

// NewGetKeywordsRecommendationRequest creates new GetKeywordsRecommendationRequest
func (s *Service) NewGetKeywordsRecommendationRequest() *GetKeywordsRecommendationRequest {
	req := GetKeywordsRecommendationRequest{}
	req.Client = s.newHTTPClient().
		SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationGetSearchKeywordsRecommendation))
	req.URL = s.endpoint
	return &req
}

// NewGetVersionRequest creates new GetVersionRequest
func (s *Service) NewGetVersionRequest() *GetVersionRequest {
	req := GetVersionRequest{}
	req.Client = s.newHTTPClient().
		SetHeader("X-EBAY-SOA-OPERATION-NAME", string(OperationGetVersion))
	req.URL = s.endpoint
	return &req
}