feat: round driver licence rating (#35)

Author: tariknz

src/frontend/components/Standings/components/DriverRatingBadge/DriverRatingBadge.spec.tsx

@@ -5,7 +5,7 @@ import { DriverRatingBadge } from './DriverRatingBadge';
 describe('DriverRatingBadge', () => {
   it('renders with default props', () => {
     const { container } = render(<DriverRatingBadge />);
-    expect(container.textContent).toBe('R 0.0k');
+    expect(container.textContent).toBe('R 0.0 0.0k');
   });
 
   it('renders with license A and rating 5000', () => {
@@ -54,27 +54,41 @@ describe('DriverRatingBadge', () => {
     const { container } = render(
       <DriverRatingBadge license={undefined} rating={undefined} />
     );
-    expect(container.textContent).toBe('R 0.0k');
+    expect(container.textContent).toBe('R 0.0 0.0k');
+  });
+
+  it('rounds rating to 1 decimal place', () => {
+    const { container } = render(
+      <DriverRatingBadge license="C 3.141592654" rating={5000.123} />
+    );
+    expect(container.textContent).toBe('C 3.1 5.0k');
   });
 
   it('removes leading zeros from license number when before non-zero digit', () => {
     const { container } = render(
       <DriverRatingBadge license="A 02.99" rating={5000} />
     );
-    expect(container.textContent).toBe('A 2.99 5.0k');
+    expect(container.textContent).toBe('A 3.0 5.0k');
   });
 
   it('keeps single zero before decimal point', () => {
     const { container } = render(
       <DriverRatingBadge license="A 0.99" rating={5000} />
     );
-    expect(container.textContent).toBe('A 0.99 5.0k');
+    expect(container.textContent).toBe('A 1.0 5.0k');
   });
 
   it('handles multiple leading zeros', () => {
     const { container } = render(
       <DriverRatingBadge license="B 0003.45" rating={5000} />
     );
-    expect(container.textContent).toBe('B 3.45 5.0k');
+    expect(container.textContent).toBe('B 3.5 5.0k');
+  });
+
+  it('should handle invalid license strings', () => {
+    const { container } = render(
+      <DriverRatingBadge license="Oh no" rating={5000} />
+    );
+    expect(container.textContent).toBe('Oh no 5.0k');
   });
 });

src/frontend/components/Standings/components/DriverRatingBadge/DriverRatingBadge.tsx

@@ -4,7 +4,7 @@ export interface DriverRatingBadgeProps {
 }
 
 export const DriverRatingBadge = ({
-  license = 'R',
+  license = 'R 0.0',
   rating = 0,
 }: DriverRatingBadgeProps) => {
   const licenseLevel = license?.charAt(0) || 'R';
@@ -20,8 +20,11 @@ export const DriverRatingBadge = ({
   if (rating >= 10000) fixed = 0;
   const simplifiedRating = (rating / 1000).toFixed(fixed);
 
-  // Format the license string to remove leading zeros only when they're before a non-zero digit
-  const formattedLicense = license?.replace(/([A-Z]) 0+([1-9]\d*\.\d+)/, '$1 $2') || 'R';
+  // Format the license string to show license level and single decimal rating
+  const formattedLicense = license?.replace(/([A-Z])\s*(\d+)\.(\d+)/, (_, level, whole, decimal) => {
+    const parsedRating = parseFloat(`${whole}.${decimal}`);
+    return `${level} ${parsedRating.toFixed(1)}`;
+  }) || 'R 0.0';
 
   return (
     <div