refactor(app): add constant SpecialLookups

hpi-dhc · Sep 23, 2024 · fda8d9f · fda8d9f
1 parent 0743cad
commit fda8d9f
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Showing 2 changed files with 28 additions and 5 deletions.
diff --git a/app/lib/common/constants.dart b/app/lib/common/constants.dart
@@ -21,3 +21,20 @@ const cpicLookupUrl =
 
 const drugInteractionIndicator = '*';
 const drugInteractionIndicatorName = 'asterisk';
+
+enum SpecialLookup {
+  any,
+  anyNotHandled,
+  noResult,
+}
+
+extension SpecialLookupValue on SpecialLookup {
+  String get value {
+    final valueMap = {
+      SpecialLookup.any: '*',
+      SpecialLookup.anyNotHandled: '~',
+      SpecialLookup.noResult: 'No Result',
+    };
+    return valueMap[this]!;
+  }
+}
diff --git a/app/lib/common/models/drug/drug.dart b/app/lib/common/models/drug/drug.dart
@@ -90,7 +90,7 @@ extension DrugExtension on Drug {
   Guideline? _getExactGuideline() {
     final exactGuidelines = guidelines.filter(
       (guideline) => guideline.lookupkey.none(
-        (gene, variants) => variants.contains('~')
+        (gene, variants) => variants.contains(SpecialLookup.anyNotHandled.value)
       )
     );
     return exactGuidelines.firstOrNullWhere(
@@ -102,7 +102,7 @@ extension DrugExtension on Drug {
     if (guidelines.isEmpty) return null;
     final partialGuidelines = guidelines.filter(
       (guideline) => guideline.lookupkey.values.any(
-        (values) => values.contains('~'),
+        (values) => values.contains(SpecialLookup.anyNotHandled.value),
       ),
     );
     if (partialGuidelines.isEmpty) return null;
@@ -118,7 +118,9 @@ extension DrugExtension on Drug {
           (guideline) => guideline.lookupkey.all(
             (gene, variants) => geneCombination.contains(gene)
               ? _lookupsMatchUserData(gene, variants)
-              : variants.any((variant) => variant == '~'),
+              : variants.any(
+                (variant) => variant == SpecialLookup.anyNotHandled.value
+              ),
           ),
         );
       }
@@ -130,7 +132,9 @@ extension DrugExtension on Drug {
   Guideline? get userGuideline {
     final anyFallbackGuideline = guidelines.firstOrNullWhere(
       (guideline) => guideline.lookupkey.all(
-        (gene, variants) => variants.any((variant) => variant == '*')
+        (gene, variants) => variants.any(
+          (variant) => variant == SpecialLookup.any.value
+        )
       ),
     );
     if (anyFallbackGuideline != null) return anyFallbackGuideline;
@@ -140,7 +144,9 @@ extension DrugExtension on Drug {
     if (partiallyHandledGuideline != null) return partiallyHandledGuideline;
     return guidelines.firstOrNullWhere(
       (guideline) => guideline.lookupkey.all(
-        (gene, variants) => variants.any((variant) => variant == '~')
+        (gene, variants) => variants.any(
+          (variant) => variant == SpecialLookup.anyNotHandled.value
+        )
       ),
     );
   }