Preserve shortage signals during global pause (Refs #137)

src/lib/ui/metrics.ts

@@ -38,6 +38,22 @@ export function metricAverageLobbies(lobbyHours: number, capturedHours: number):
     return lobbyHours / capturedHours;
 }
 
+/** Use up to four whole-lobby intervals while retaining fractional averages in the data. */
+export function metricLobbyAxis(maximumLobbies: number) {
+    const maximum = Number.isFinite(maximumLobbies) ? Math.max(1, maximumLobbies) : 1;
+    const targetStep = Math.max(1, maximum / 4);
+    const magnitude = 10 ** Math.floor(Math.log10(targetStep));
+    const step =
+        [1, 2, 5, 10]
+            .map((multiple) => multiple * magnitude)
+            .find((value) => value >= targetStep) ?? 10 * magnitude;
+    const intervals = Math.ceil(maximum / step);
+    return {
+        ceiling: intervals * step,
+        ticks: Array.from({ length: intervals + 1 }, (_, index) => (intervals - index) * step)
+    };
+}
+
 export function metricPercent(value: number, total: number): string {
     if (!Number.isFinite(value) || !Number.isFinite(total) || total <= 0) return '—';
     const percent = (100 * value) / total;