CARDS-2571: Reference Questions do not work inside Conditional Sections

- Update reference question initialization code to check for unlinked reference questions
  any time a form is edited, not just when a form is created
  - Search for any reference questions on the form that do not have an answer
  - Check if the missing questions have an existing answer section. If so, generate an answer
  - Try to find a source answer for any existing or newly created unanswered reference answers
    - Prioritize pulling source answers from forms that are already referenced by other
      reference answers in this form for consistency
- Add test case in ReferenceTestCopied form

modules/data-model/forms/api/src/main/java/io/uhndata/cards/forms/api/QuestionnaireUtils.java

@@ -18,6 +18,8 @@
 
 import javax.jcr.Node;
 
+import org.apache.jackrabbit.oak.api.Type;
+
 /**
  * Basic utilities for working with Questionnaires.
  *
@@ -190,4 +192,12 @@ public interface QuestionnaireUtils
      * @return the question's description, or an empty string if no description is present
      */
     String getQuestionDescription(Node question);
+
+    /**
+     * Retrieve the Oak {@code Type} mapping for this question's answers.
+     *
+     * @param question a {@code cards:Question} node
+     * @return the Oak {@code Type} for this question's answer or {@code Type.STRING} if it could not be determined
+     */
+    Type<?> getAnswerType(Node question);
 }

modules/data-model/forms/impl/src/main/java/io/uhndata/cards/forms/internal/AnswersEditor.java

@@ -375,39 +375,4 @@ public String toString()
                 + (this.node == null ? "" : " node: " + this.node.toString()) + " }";
         }
     }
-
-    protected Type<?> getAnswerType(final Node questionNode)
-    {
-        Type<?> result = Type.STRING;
-        try {
-            final String dataTypeString = questionNode.getProperty("dataType").getString();
-            switch (dataTypeString) {
-                case "long":
-                    result = Type.LONG;
-                    break;
-                case "double":
-                    result = Type.DOUBLE;
-                    break;
-                case "decimal":
-                    result = Type.DECIMAL;
-                    break;
-                case "boolean":
-                    // Long, not boolean
-                    result = Type.LONG;
-                    break;
-                case "date":
-                    result = (questionNode.hasProperty("dateFormat") && "yyyy".equals(
-                        questionNode.getProperty("dateFormat").getString().toLowerCase()))
-                            ? Type.LONG
-                            : Type.DATE;
-                    break;
-                default:
-                    result = Type.STRING;
-            }
-        } catch (RepositoryException e) {
-            getLogger().warn("Error typing value for question. " + e.getMessage());
-            // It's OK to assume String by default
-        }
-        return result;
-    }
 }

modules/data-model/forms/impl/src/main/java/io/uhndata/cards/forms/internal/ComputedAnswersEditor.java

@@ -178,7 +178,7 @@ private void computeAnswer(final Map.Entry<Node, NodeBuilder> entry, NodeState f
         try {
             final Node question = entry.getKey();
             final NodeBuilder answer = entry.getValue();
-            Type<?> resultType = getAnswerType(question);
+            Type<?> resultType = this.questionnaireUtils.getAnswerType(question);
 
             ExpressionUtils.ExpressionResult expressionResult = this.expressionUtils.evaluate(question,
                 answersByQuestionName, resultType, changedQuestions);

modules/data-model/forms/impl/src/main/java/io/uhndata/cards/forms/internal/QuestionnaireUtilsImpl.java

@@ -21,6 +21,7 @@
 import javax.jcr.RepositoryException;
 
 import org.apache.commons.lang3.StringUtils;
+import org.apache.jackrabbit.oak.api.Type;
 import org.osgi.service.component.annotations.Component;
 import org.osgi.service.component.annotations.Reference;
 
@@ -181,4 +182,39 @@ public String getQuestionDescription(final Node question)
     {
         return isQuestion(question) ? StringUtils.defaultString(getStringProperty(question, "description")) : "";
     }
+
+    @Override
+    public Type<?> getAnswerType(final Node question)
+    {
+        Type<?> result = Type.STRING;
+        try {
+            final String dataTypeString = question.getProperty("dataType").getString();
+            switch (dataTypeString) {
+                case "long":
+                    result = Type.LONG;
+                    break;
+                case "double":
+                    result = Type.DOUBLE;
+                    break;
+                case "decimal":
+                    result = Type.DECIMAL;
+                    break;
+                case "boolean":
+                    // Long, not boolean
+                    result = Type.LONG;
+                    break;
+                case "date":
+                    result = (question.hasProperty("dateFormat") && "yyyy".equals(
+                        question.getProperty("dateFormat").getString().toLowerCase()))
+                            ? Type.LONG
+                            : Type.DATE;
+                    break;
+                default:
+                    result = Type.STRING;
+            }
+        } catch (RepositoryException e) {
+            // Default to STRING
+        }
+        return result;
+    }
 }