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package org.hl7.fhir.r5.utils;

import org.hl7.fhir.r5.context.IWorkerContext;
import org.hl7.fhir.r5.model.CanonicalResource;
import org.hl7.fhir.r5.model.ElementDefinition;
import org.hl7.fhir.r5.model.Enumerations.BindingStrength;
import org.hl7.fhir.r5.model.Extension;
import org.hl7.fhir.r5.model.MarkdownType;
import org.hl7.fhir.r5.model.StructureDefinition.TypeDerivationRule;
import org.hl7.fhir.utilities.MarkedToMoveToAdjunctPackage;
import org.hl7.fhir.r5.model.StructureDefinition;

@MarkedToMoveToAdjunctPackage
public class R5Hacker {

  public static void fixR5BrokenResources(IWorkerContext context) {
    for (StructureDefinition sd : context.fetchResourcesByType(StructureDefinition.class)) {
      fixSD(sd);
    }
  }

  private static void fixSD(StructureDefinition sd) {
    for (ElementDefinition ed : sd.getDifferential().getElement()) {
      fix(ed);
    }
    for (ElementDefinition ed : sd.getSnapshot().getElement()) {
      fix(ed);
    }
  }

  private static void fix(ElementDefinition ed) {
    if (ed.hasDefinition() && ed.getDefinition() != null) {
      ed.setDefinition(ed.getDefinition().replace("http://hl7.org/fhir/5.0.0-snapshot3/", "http://hl7.org/fhir/R5/"));
    }
    if (ed.hasBinding() && ed.getBinding().hasExtension(ToolingExtensions.EXT_BINDING_DEFINITION)) {
      Extension ext = ed.getBinding().getExtensionByUrl(ToolingExtensions.EXT_BINDING_DEFINITION);
      ext.setValue(new MarkdownType(ext.getValue().primitiveValue()));
    }
  }


  public static CanonicalResource fixR5BrokenResource(CanonicalResource cr) {
    if (cr instanceof StructureDefinition) {
      StructureDefinition sd = (StructureDefinition) cr;
      fixSD(sd);
    }
    return cr;
  }
  
}