package gtm

import (
	"context"
	"errors"
	"fmt"
	"net/http"
	"net/url"
	"reflect"
	"strconv"
	"unicode"

	"github.com/akamai/AkamaiOPEN-edgegrid-golang/v13/pkg/edgegriderr"
	"github.com/akamai/AkamaiOPEN-edgegrid-golang/v13/pkg/session"
	validation "github.com/go-ozzo/ozzo-validation/v4"
)

type (
	// The Domain data structure represents a GTM domain.
	Domain struct {
		Name                         string          `json:"name"`
		Type                         string          `json:"type"`
		ASMaps                       []ASMap         `json:"asMaps,omitempty"`
		Resources                    []Resource      `json:"resources,omitempty"`
		DefaultUnreachableThreshold  float32         `json:"defaultUnreachableThreshold,omitempty"`
		EmailNotificationList        []string        `json:"emailNotificationList,omitempty"`
		MinPingableRegionFraction    float32         `json:"minPingableRegionFraction,omitempty"`
		DefaultTimeoutPenalty        int             `json:"defaultTimeoutPenalty,omitempty"`
		Datacenters                  []Datacenter    `json:"datacenters,omitempty"`
		ServermonitorLivenessCount   int             `json:"servermonitorLivenessCount,omitempty"`
		RoundRobinPrefix             string          `json:"roundRobinPrefix,omitempty"`
		ServermonitorLoadCount       int             `json:"servermonitorLoadCount,omitempty"`
		PingInterval                 int             `json:"pingInterval,omitempty"`
		MaxTTL                       int64           `json:"maxTTL,omitempty"`
		LoadImbalancePercentage      float64         `json:"loadImbalancePercentage,omitempty"`
		DefaultHealthMax             float64         `json:"defaultHealthMax,omitempty"`
		LastModified                 string          `json:"lastModified,omitempty"`
		Status                       *ResponseStatus `json:"status,omitempty"`
		MapUpdateInterval            int             `json:"mapUpdateInterval,omitempty"`
		MaxProperties                int             `json:"maxProperties,omitempty"`
		MaxResources                 int             `json:"maxResources,omitempty"`
		DefaultSSLClientPrivateKey   string          `json:"defaultSslClientPrivateKey,omitempty"`
		DefaultErrorPenalty          int             `json:"defaultErrorPenalty,omitempty"`
		Links                        []Link          `json:"links,omitempty"`
		Properties                   []Property      `json:"properties,omitempty"`
		MaxTestTimeout               float64         `json:"maxTestTimeout,omitempty"`
		CNameCoalescingEnabled       bool            `json:"cnameCoalescingEnabled"`
		DefaultHealthMultiplier      float64         `json:"defaultHealthMultiplier,omitempty"`
		ServermonitorPool            string          `json:"servermonitorPool,omitempty"`
		LoadFeedback                 bool            `json:"loadFeedback"`
		MinTTL                       int64           `json:"minTTL,omitempty"`
		GeographicMaps               []GeoMap        `json:"geographicMaps,omitempty"`
		CIDRMaps                     []CIDRMap       `json:"cidrMaps,omitempty"`
		DefaultMaxUnreachablePenalty int             `json:"defaultMaxUnreachablePenalty"`
		DefaultHealthThreshold       float64         `json:"defaultHealthThreshold,omitempty"`
		LastModifiedBy               string          `json:"lastModifiedBy,omitempty"`
		ModificationComments         string          `json:"modificationComments,omitempty"`
		MinTestInterval              int             `json:"minTestInterval,omitempty"`
		PingPacketSize               int             `json:"pingPacketSize,omitempty"`
		DefaultSSLClientCertificate  string          `json:"defaultSslClientCertificate,omitempty"`
		EndUserMappingEnabled        bool            `json:"endUserMappingEnabled"`
		SignAndServe                 bool            `json:"signAndServe"`
		SignAndServeAlgorithm        *string         `json:"signAndServeAlgorithm"`
	}

	// DomainQueryArgs contains query parameters for domain request.
	DomainQueryArgs struct {
		ContractID string
		GroupID    string
	}

	// DomainsList contains a list of domain items.
	DomainsList struct {
		DomainItems []DomainItem `json:"items"`
	}

	// DomainItem is a DomainsList item.
	DomainItem struct {
		AcgID                 string `json:"acgId"`
		LastModified          string `json:"lastModified"`
		Links                 []Link `json:"links"`
		Name                  string `json:"name"`
		Status                string `json:"status"`
		LastModifiedBy        string `json:"lastModifiedBy"`
		ChangeID              string `json:"changeId"`
		ActivationState       string `json:"activationState"`
		ModificationComments  string `json:"modificationComments"`
		SignAndServe          bool   `json:"signAndServe"`
		SignAndServeAlgorithm string `json:"signAndServeAlgorithm"`
		DeleteRequestID       string `json:"deleteRequestId"`
	}
	// GetDomainStatusRequest contains request parameters for GetDomainStatus.
	GetDomainStatusRequest struct {
		DomainName string
	}
	// GetDomainStatusResponse contains the response data from GetDomainStatus operation.
	GetDomainStatusResponse ResponseStatus

	// DomainRequest contains request parameters.
	DomainRequest struct {
		Domain    *Domain
		QueryArgs *DomainQueryArgs
	}

	// GetDomainRequest contains request parameters for GetDomain.
	GetDomainRequest struct {
		DomainName string
	}

	// GetDomainResponse contains the response data from GetDomain operation.
	GetDomainResponse Domain

	// CreateDomainRequest contains request parameters for CreateDomain.
	CreateDomainRequest DomainRequest

	// CreateDomainResponse contains the response data from CreateDomain operation.
	CreateDomainResponse struct {
		Resource *Domain         `json:"resource"`
		Status   *ResponseStatus `json:"status"`
	}

	// UpdateDomainRequest contains request parameters for UpdateDomain.
	UpdateDomainRequest DomainRequest

	// UpdateDomainResponse contains the response data from UpdateDomain operation.
	UpdateDomainResponse struct {
		Resource *Domain         `json:"resource"`
		Status   *ResponseStatus `json:"status"`
	}

	// DeleteDomainRequest contains request parameters for DeleteDomain
	// Deprecated: DeleteDomainRequest is deprecated and may be removed in future versions.
	DeleteDomainRequest struct {
		DomainName string
	}

	// DeleteDomainResponse contains request parameters for DeleteDomain
	// Deprecated: DeleteDomainResponse is deprecated and may be removed in future versions.
	DeleteDomainResponse struct {
		ChangeID              string `json:"changeId,omitempty"`
		Links                 []Link `json:"links,omitempty"`
		Message               string `json:"message,omitempty"`
		PassingValidation     bool   `json:"passingValidation,omitempty"`
		PropagationStatus     string `json:"propagationStatus,omitempty"`
		PropagationStatusDate string `json:"propagationStatusDate,omitempty"`
	}

	// DeleteDomainsRequest contains the parameters required to initiate a delete domains operation.
	DeleteDomainsRequest struct {
		// BypassSafetyChecks allows to disable the delegation checks and deletes the domains as soon as possible.
		BypassSafetyChecks *bool
		// Body contains the list of domain names to be deleted.
		Body DeleteDomainsRequestBody
	}

	// DeleteDomainsRequestBody represents a request body for DeleteDomainsRequest.
	DeleteDomainsRequestBody struct {
		// DomainNames represents a list of domain names.
		DomainNames []string `json:"domains"`
	}

	// DeleteDomainsResponse contains response data from DeleteDomains request.
	DeleteDomainsResponse struct {
		// ExpirationDate represents ISO 8601 timestamp, up to which you can query information about this request.
		ExpirationDate string `json:"expirationDate"`
		// RequestID represents the ID of the request.
		RequestID string `json:"requestId"`
	}

	// DeleteDomainsStatusRequest represents request parameters to retrieve the current status of the delete domains request.
	DeleteDomainsStatusRequest struct {
		// RequestID represents the ID of the request.
		RequestID string `json:"requestId"`
	}

	// DeleteDomainsStatusResponse represents the response data from the GetDeleteDomainsStatus request.
	DeleteDomainsStatusResponse struct {
		// DomainsSubmitted represents the number of domains that were included in the request.
		DomainsSubmitted int `json:"domainsSubmitted"`
		// ExpirationDate represents ISO 8601 timestamp, up to which you can query information about this request.
		ExpirationDate string `json:"expirationDate"`
		// FailureCount represents the number of domains that could not be processed.
		FailureCount int `json:"failureCount"`
		// IsComplete represents if the offline task has finished processing and the result object can be retrieved.
		IsComplete bool `json:"isComplete"`
		// RequestID represents the ID of the request.
		RequestID string `json:"requestId"`
		// SuccessCount represents the number of domains that were successfully processed.
		SuccessCount int `json:"successCount"`
	}
)

// NullFieldMapStruct returns null Objects structure.
type NullFieldMapStruct struct {
	Domain      NullPerObjectAttributeStruct            // entry is domain
	Properties  map[string]NullPerObjectAttributeStruct // entries are properties
	Datacenters map[string]NullPerObjectAttributeStruct // entries are datacenters
	Resources   map[string]NullPerObjectAttributeStruct // entries are resources
	CidrMaps    map[string]NullPerObjectAttributeStruct // entries are cidrmaps
	GeoMaps     map[string]NullPerObjectAttributeStruct // entries are geomaps
	AsMaps      map[string]NullPerObjectAttributeStruct // entries are asmaps
}

// ObjectMap represents ObjectMap datatype.
type ObjectMap map[string]interface{}

var (
	// ErrGetDomainStatus is returned when GetDomainStatus fails.
	ErrGetDomainStatus = errors.New("get domain status")
	// ErrGetDomain is returned when GetDomain fails.
	ErrGetDomain = errors.New("get domain")
	// ErrCreateDomain is returned when CreateDomain fails.
	ErrCreateDomain = errors.New("create domain")
	// ErrUpdateDomain is returned when UpdateDomain fails.
	ErrUpdateDomain = errors.New("update domain")
	// ErrDeleteDomain is returned when DeleteDomain fails
	// Deprecated: ErrDeleteDomain is deprecated and may be removed in future versions.
	ErrDeleteDomain = errors.New("delete domain")
	// ErrDeleteDomains is returned when DeleteDomain fails.
	ErrDeleteDomains = errors.New("delete domains")
	// ErrGetDeleteDomainsStatus is returned when GetDeleteDomainsStatus fails.
	ErrGetDeleteDomainsStatus = errors.New("get delete domains status")
)

// Validate validates DeleteDomainRequest
// Deprecated: Validate is deprecated and may be removed in future versions.
func (r DeleteDomainRequest) Validate() error {
	return edgegriderr.ParseValidationErrors(validation.Errors{
		"DomainName": validation.Validate(r.DomainName, validation.Required),
	})
}

// Validate validates DeleteDomainsRequest.
func (r DeleteDomainsRequest) Validate() error {
	return edgegriderr.ParseValidationErrors(validation.Errors{
		"DomainNames": validation.Validate(r.Body.DomainNames, validation.Required, validation.Each(validation.Required)),
	})
}

// Validate validates DeleteDomainsStatusRequest.
func (r DeleteDomainsStatusRequest) Validate() error {
	return edgegriderr.ParseValidationErrors(validation.Errors{
		"RequestID": validation.Validate(r.RequestID, validation.Required),
	})
}

// Validate validates UpdateDomainRequest.
func (r UpdateDomainRequest) Validate() error {
	return edgegriderr.ParseValidationErrors(validation.Errors{
		"Domain": validation.Validate(r.Domain, validation.Required),
	})
}

// Validate validates CreateDomainRequest.
func (r CreateDomainRequest) Validate() error {
	return edgegriderr.ParseValidationErrors(validation.Errors{
		"Domain": validation.Validate(r.Domain, validation.Required),
	})
}

// Validate validates GetDomainStatusRequest.
func (r GetDomainStatusRequest) Validate() error {
	return edgegriderr.ParseValidationErrors(validation.Errors{
		"DomainName": validation.Validate(r.DomainName, validation.Required),
	})
}

// Validate validates GetDomainRequest.
func (r GetDomainRequest) Validate() error {
	return edgegriderr.ParseValidationErrors(validation.Errors{
		"DomainName": validation.Validate(r.DomainName, validation.Required),
	})
}

// Validate validates Domain.
func (d *Domain) Validate() error {
	if len(d.Name) < 1 {
		return fmt.Errorf("Domain is missing Name")
	}
	if len(d.Type) < 1 {
		return fmt.Errorf("Domain is missing Type")
	}

	return nil
}

func (g *gtm) GetDomainStatus(ctx context.Context, params GetDomainStatusRequest) (*GetDomainStatusResponse, error) {
	logger := g.Log(ctx)
	logger.Debug("GetDomainStatus")

	if err := params.Validate(); err != nil {
		return nil, fmt.Errorf("%s: %w: %s", ErrGetDomainStatus, ErrStructValidation, err)
	}

	getURL := fmt.Sprintf("/config-gtm/v1/domains/%s/status/current", params.DomainName)
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, getURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to create GetDomain request: %w", err)
	}
	setVersionHeader(req, schemaVersion)

	var result GetDomainStatusResponse
	resp, err := g.Exec(req, &result)
	if err != nil {
		return nil, fmt.Errorf("GetDomain request failed: %w", err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusOK {
		return nil, g.Error(resp)
	}

	return &result, nil
}

func (g *gtm) ListDomains(ctx context.Context) ([]DomainItem, error) {
	logger := g.Log(ctx)
	logger.Debug("ListDomains")

	getURL := "/config-gtm/v1/domains"
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, getURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to create ListDomains request: %w", err)
	}
	setVersionHeader(req, schemaVersion)

	var result DomainsList
	resp, err := g.Exec(req, &result)
	if err != nil {
		return nil, fmt.Errorf("ListDomains request failed: %w", err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusOK {
		return nil, g.Error(resp)
	}

	return result.DomainItems, nil
}

func (g *gtm) GetDomain(ctx context.Context, params GetDomainRequest) (*GetDomainResponse, error) {
	logger := g.Log(ctx)
	logger.Debug("GetDomain")

	if err := params.Validate(); err != nil {
		return nil, fmt.Errorf("%s: %w: %s", ErrGetDomain, ErrStructValidation, err)
	}

	getURL := fmt.Sprintf("/config-gtm/v1/domains/%s", params.DomainName)
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, getURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to create GetDomain request: %w", err)
	}
	setVersionHeader(req, schemaVersion)

	var result GetDomainResponse
	resp, err := g.Exec(req, &result)
	if err != nil {
		return nil, fmt.Errorf("GetDomain request failed: %w", err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusOK {
		return nil, g.Error(resp)
	}

	return &result, nil
}

func (g *gtm) CreateDomain(ctx context.Context, params CreateDomainRequest) (*CreateDomainResponse, error) {
	logger := g.Log(ctx)
	logger.Debug("CreateDomain")

	if err := params.Validate(); err != nil {
		return nil, fmt.Errorf("%s: %w: %s", ErrCreateDomain, ErrStructValidation, err)
	}

	postURL := "/config-gtm/v1/domains"
	req, err := http.NewRequestWithContext(ctx, http.MethodPost, postURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to create CreateDomain request: %w", err)
	}

	// set schema version
	setVersionHeader(req, schemaVersion)

	// Look for optional args
	if params.QueryArgs != nil {
		q := req.URL.Query()
		if params.QueryArgs.ContractID != "" {
			q.Add("contractId", params.QueryArgs.ContractID)
		}
		if params.QueryArgs.GroupID != "" {
			q.Add("gid", params.QueryArgs.GroupID)
		}
		req.URL.RawQuery = q.Encode()
	}

	var result CreateDomainResponse
	resp, err := g.Exec(req, &result, params.Domain)
	if err != nil {
		return nil, fmt.Errorf("domain request failed: %w", err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusCreated {
		return nil, g.Error(resp)
	}

	return &result, nil
}

func (g *gtm) UpdateDomain(ctx context.Context, params UpdateDomainRequest) (*UpdateDomainResponse, error) {
	logger := g.Log(ctx)
	logger.Debug("UpdateDomain")

	if err := params.Validate(); err != nil {
		return nil, fmt.Errorf("%s: %w: %s", ErrUpdateDomain, ErrStructValidation, err)
	}

	putURL := fmt.Sprintf("/config-gtm/v1/domains/%s", params.Domain.Name)
	req, err := http.NewRequestWithContext(ctx, http.MethodPut, putURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to create UpdateDomain request: %w", err)
	}

	// set schema version
	setVersionHeader(req, schemaVersion)

	// Look for optional args
	if params.QueryArgs != nil {
		q := req.URL.Query()
		if params.QueryArgs.ContractID != "" {
			q.Add("contractId", params.QueryArgs.ContractID)
		}
		if params.QueryArgs.GroupID != "" {
			q.Add("gid", params.QueryArgs.GroupID)
		}
		req.URL.RawQuery = q.Encode()
	}

	var result UpdateDomainResponse
	resp, err := g.Exec(req, &result, params.Domain)
	if err != nil {
		return nil, fmt.Errorf("domain request failed: %w", err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusOK {
		return nil, g.Error(resp)
	}

	return &result, nil
}

// Deprecated: DeleteDomain is deprecated and may be removed in future versions.
func (g *gtm) DeleteDomain(ctx context.Context, params DeleteDomainRequest) (*DeleteDomainResponse, error) {
	logger := g.Log(ctx)
	logger.Debug("DeleteDomain")

	if err := params.Validate(); err != nil {
		return nil, fmt.Errorf("%s: %w: %s", ErrDeleteDomain, ErrStructValidation, err)
	}

	delURL := fmt.Sprintf("/config-gtm/v1/domains/%s", params.DomainName)
	req, err := http.NewRequestWithContext(ctx, http.MethodDelete, delURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to create DeleteDomain request: %w", err)
	}
	setVersionHeader(req, schemaVersion)

	var result DeleteDomainResponse
	resp, err := g.Exec(req, &result)
	if err != nil {
		return nil, fmt.Errorf("DeleteDomain request failed: %w", err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusOK {
		return nil, g.Error(resp)
	}

	return &result, nil
}

func (g *gtm) DeleteDomains(ctx context.Context, params DeleteDomainsRequest) (*DeleteDomainsResponse, error) {
	logger := g.Log(ctx)
	logger.Debug("DeleteDomains")

	if err := params.Validate(); err != nil {
		return nil, fmt.Errorf("%s: %w: %s", ErrDeleteDomains, ErrStructValidation, err)
	}

	query := url.Values{}
	if params.BypassSafetyChecks != nil {
		query.Set("bypassSafetyChecks", strconv.FormatBool(*params.BypassSafetyChecks))
	}

	uri, err := url.Parse("/config-gtm/v1/domains/delete-requests")
	if err != nil {
		return nil, fmt.Errorf("%w: failed to parse URL: %s", ErrDeleteDomains, err)
	}

	uri.RawQuery = query.Encode()

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, uri.String(), nil)
	if err != nil {
		return nil, fmt.Errorf("%w: failed to create HTTP request: %s", ErrDeleteDomains, err)
	}

	// set schema version
	setVersionHeader(req, schemaVersion)

	var result DeleteDomainsResponse
	resp, err := g.Exec(req, &result, params.Body)
	if err != nil {
		return nil, fmt.Errorf("DeleteDomain request failed: %w", err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusOK {
		return nil, g.Error(resp)
	}

	return &result, nil
}

func (g *gtm) GetDeleteDomainsStatus(ctx context.Context, params DeleteDomainsStatusRequest) (*DeleteDomainsStatusResponse, error) {
	logger := g.Log(ctx)
	logger.Debug("GetDeleteDomainsStatus")

	if err := params.Validate(); err != nil {
		return nil, fmt.Errorf("%w: validation failed: %s", ErrGetDeleteDomainsStatus, err)
	}

	uri, err := url.Parse(fmt.Sprintf(
		"/config-gtm/v1/domains/delete-requests/%s",
		params.RequestID),
	)
	if err != nil {
		return nil, fmt.Errorf("%w: failed to parse URL: %s", ErrGetDeleteDomainsStatus, err)
	}

	req, err := http.NewRequestWithContext(ctx, http.MethodGet, uri.String(), nil)
	if err != nil {
		return nil, fmt.Errorf("%w: failed to create HTTP request: %s", ErrGetDeleteDomainsStatus, err)
	}

	var result DeleteDomainsStatusResponse
	resp, err := g.Exec(req, &result)
	if err != nil {
		return nil, fmt.Errorf("%w: request execution failed: %s", ErrGetDeleteDomainsStatus, err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusOK {
		return nil, g.Error(resp)
	}

	return &result, nil
}

// NullPerObjectAttributeStruct represents core and child null object attributes.
type NullPerObjectAttributeStruct struct {
	CoreObjectFields  map[string]string
	ChildObjectFields map[string]interface{} // NullObjectAttributeStruct
}

func (g *gtm) NullFieldMap(ctx context.Context, domain *Domain) (*NullFieldMapStruct, error) {
	logger := g.Log(ctx)
	logger.Debug("NullFieldMap")

	if err := domain.Validate(); err != nil {
		return nil, fmt.Errorf("domain validation failed. %w", err)
	}

	var nullFieldMap = &NullFieldMapStruct{}
	var domFields = NullPerObjectAttributeStruct{}
	domainMap := make(map[string]string)
	var objMap ObjectMap

	getURL := fmt.Sprintf("/config-gtm/v1/domains/%s", domain.Name)
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, getURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to create GetDomain request: %w", err)
	}
	setVersionHeader(req, schemaVersion)
	resp, err := g.Exec(req, &objMap)
	if err != nil {
		return nil, fmt.Errorf("GetDomain request failed: %w", err)
	}
	defer session.CloseResponseBody(resp)

	if resp.StatusCode != http.StatusOK {
		return nil, g.Error(resp)
	}

	for i, d := range objMap {
		objVal := fmt.Sprint(d)
		if fmt.Sprintf("%T", d) == "<nil>" {
			if objVal == "<nil>" {
				domainMap[makeFirstCharUpperCase(i)] = ""
			}
			continue
		}
		list, ok := d.([]interface{})
		if !ok {
			continue
		}

		switch i {
		case "properties":
			nullFieldMap.Properties = processObjectList(list)
		case "datacenters":
			nullFieldMap.Datacenters = processObjectList(list)
		case "resources":
			nullFieldMap.Resources = processObjectList(list)
		case "cidrMaps":
			nullFieldMap.CidrMaps = processObjectList(list)
		case "geographicMaps":
			nullFieldMap.GeoMaps = processObjectList(list)
		case "asMaps":
			nullFieldMap.AsMaps = processObjectList(list)
		}
	}

	domFields.CoreObjectFields = domainMap
	nullFieldMap.Domain = domFields

	return nullFieldMap, nil

}

func makeFirstCharUpperCase(origString string) string {
	a := []rune(origString)
	a[0] = unicode.ToUpper(a[0])
	// hack
	if origString == "cname" {
		a[1] = unicode.ToUpper(a[1])
	}
	return string(a)
}

func processObjectList(objectList []interface{}) map[string]NullPerObjectAttributeStruct {
	nullObjectsList := make(map[string]NullPerObjectAttributeStruct)
	for _, obj := range objectList {
		nullObjectFields := NullPerObjectAttributeStruct{}
		objectName := ""
		objectDCID := ""
		objectMap := make(map[string]string)
		objectChildList := make(map[string]interface{})
		for objF, objD := range obj.(map[string]interface{}) {
			objVal := fmt.Sprint(objD)
			switch fmt.Sprintf("%T", objD) {
			case "<nil>":
				if objVal == "<nil>" {
					objectMap[makeFirstCharUpperCase(objF)] = ""
				}
			case "map[string]interface {}":
				// include null stand alone struct elements in core
				for moName, moValue := range objD.(map[string]interface{}) {
					if fmt.Sprintf("%T", moValue) == "<nil>" {
						objectMap[makeFirstCharUpperCase(moName)] = ""
					}
				}
			case "[]interface {}":
				iSlice := objD.([]interface{})
				if len(iSlice) > 0 && reflect.TypeOf(iSlice[0]).Kind() != reflect.String && reflect.TypeOf(iSlice[0]).Kind() != reflect.Int64 && reflect.TypeOf(iSlice[0]).Kind() != reflect.Float64 && reflect.TypeOf(iSlice[0]).Kind() != reflect.Int32 {
					objectChildList[makeFirstCharUpperCase(objF)] = processObjectList(objD.([]interface{}))
				}
			default:
				if objF == "name" {
					objectName = objVal
				}
				if objF == "datacenterId" {
					objectDCID = objVal
				}
			}
		}
		nullObjectFields.CoreObjectFields = objectMap
		nullObjectFields.ChildObjectFields = objectChildList

		if objectDCID == "" {
			if objectName != "" {
				nullObjectsList[objectName] = nullObjectFields
			} else {
				nullObjectsList["unknown"] = nullObjectFields // TODO: What if mnore than one?
			}
		} else {
			nullObjectsList[objectDCID] = nullObjectFields
		}
	}

	return nullObjectsList
}
