Merge pull request #268 from AUS-DOH-Safety-and-Quality/assurance-ico…

…n-fixes

Fix assurance icon detection with varying and missing alt. target values

src/Outlier Flagging/assuranceIconToDraw.ts

@@ -1,14 +1,17 @@
 import type { viewModelClass } from "../Classes";
 
 export default function assuranceIconToDraw(viewModel: viewModelClass): string {
+  if (viewModel.inputSettings.settings.spc.chart_type === "run") {
+    return "none";
+  }
   const imp_direction: string = viewModel.inputSettings.settings.outliers.improvement_direction;
-  const alt_target: number = viewModel.inputSettings.settings.lines.alt_target;
+  const N: number = viewModel.controlLimits.ll99.length - 1;
+  const alt_target: number = viewModel.controlLimits?.alt_targets?.[N];
 
   if (alt_target === null || imp_direction === "neutral") {
     return "none";
   }
 
-  const N: number = viewModel.controlLimits.ll99.length - 1;
   const impDirectionIncrease: boolean = imp_direction === "increase";
 
   if (alt_target > viewModel.controlLimits.ul99[N]) {