lgtm

frontend/src/lib/travel-params.ts

@@ -0,0 +1,27 @@
+import type { TravelTimeEntry } from '../hooks/useTravelTime';
+
+export function buildTravelParam(
+  entries: TravelTimeEntry[],
+  excludeFieldKey?: string,
+  includeUnboundedExcludedRange = false
+): string {
+  const segments: string[] = [];
+
+  for (const entry of entries) {
+    if (!entry.slug) continue;
+
+    let segment = `${entry.mode}:${entry.slug}`;
+    if (entry.useBest) segment += ':best';
+
+    const isExcluded = excludeFieldKey === `tt_${entry.mode}_${entry.slug}`;
+    if (isExcluded && includeUnboundedExcludedRange) {
+      segment += ':0:1440';
+    } else if (!isExcluded && entry.timeRange) {
+      segment += `:${entry.timeRange[0]}:${entry.timeRange[1]}`;
+    }
+
+    segments.push(segment);
+  }
+
+  return segments.join('|');
+}