116 lines
3.8 KiB
Go
116 lines
3.8 KiB
Go
package base
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import (
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"context"
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"fmt"
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"github.com/fastenhealth/fastenhealth-onprem/backend/pkg/config"
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"github.com/fastenhealth/fastenhealth-onprem/backend/pkg/models"
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"github.com/fastenhealth/gofhir-models/fhir401"
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fhirutils "github.com/fastenhealth/gofhir-models/fhir401/utils"
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"github.com/samber/lo"
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"github.com/sirupsen/logrus"
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"gorm.io/datatypes"
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"net/http"
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)
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type FHIR401Client struct {
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*BaseClient
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}
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func NewFHIR401Client(ctx context.Context, appConfig config.Interface, globalLogger logrus.FieldLogger, source models.Source, testHttpClient ...*http.Client) (*FHIR401Client, *models.Source, error) {
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baseClient, updatedSource, err := NewBaseClient(ctx, appConfig, globalLogger, source, testHttpClient...)
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return &FHIR401Client{
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baseClient,
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}, updatedSource, err
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// FHIR
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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func (c *FHIR401Client) GetPatientBundle(patientId string) (fhir401.Bundle, error) {
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// https://www.hl7.org/fhir/patient-operation-everything.html
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bundle := fhir401.Bundle{}
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err := c.GetRequest(fmt.Sprintf("Patient/%s/$everything", patientId), &bundle)
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if err != nil {
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return bundle, err
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}
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var next string
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var self string
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for _, link := range bundle.Link {
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if link.Relation == "next" {
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next = link.Url
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} else if link.Relation == "self" {
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self = link.Url
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}
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}
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for len(next) > 0 && next != self {
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c.Logger.Debugf("Paginated request => %s", next)
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nextBundle := fhir401.Bundle{}
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err := c.GetRequest(next, &nextBundle)
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if err != nil {
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return bundle, nil //ignore failures when paginating?
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}
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bundle.Entry = append(bundle.Entry, nextBundle.Entry...)
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next = "" //reset the next pointer
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self = ""
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for _, link := range nextBundle.Link {
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if link.Relation == "next" {
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next = link.Url
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} else if link.Relation == "self" {
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self = link.Url
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}
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}
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}
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return bundle, err
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}
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func (c *FHIR401Client) GetPatient(patientId string) (fhir401.Patient, error) {
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patient := fhir401.Patient{}
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err := c.GetRequest(fmt.Sprintf("Patient/%s", patientId), &patient)
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return patient, err
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Process Bundles
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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func (c *FHIR401Client) ProcessBundle(bundle fhir401.Bundle) ([]models.ResourceFhir, error) {
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//process each entry in bundle
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wrappedResourceModels := lo.FilterMap[fhir401.BundleEntry, models.ResourceFhir](bundle.Entry, func(bundleEntry fhir401.BundleEntry, _ int) (models.ResourceFhir, bool) {
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originalResource, _ := fhirutils.MapToResource(bundleEntry.Resource, false)
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resourceType, resourceId := originalResource.(ResourceInterface).ResourceRef()
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// TODO find a way to safely/consistently get the resource updated date (and other metadata) which shoudl be added to the model.
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//if originalResource.Meta != nil && originalResource.Meta.LastUpdated != nil {
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// if parsed, err := time.Parse(time.RFC3339Nano, *originalResource.Meta.LastUpdated); err == nil {
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// patientProfile.UpdatedAt = parsed
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// }
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//}
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if resourceId == nil {
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//no resourceId present for this resource, we'll ignore it.
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return models.ResourceFhir{}, false
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}
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wrappedResourceModel := models.ResourceFhir{
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OriginBase: models.OriginBase{
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ModelBase: models.ModelBase{},
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UserID: c.Source.UserID,
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SourceID: c.Source.ID,
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SourceResourceID: *resourceId,
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SourceResourceType: resourceType,
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},
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Payload: datatypes.JSON(bundleEntry.Resource),
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}
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return wrappedResourceModel, true
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})
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return wrappedResourceModels, nil
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}
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