[优化] go 引用调整

openflare-server/web/lib/utils/metrics.ts

@@ -0,0 +1,83 @@
+const compactNumberFormatter = new Intl.NumberFormat('zh-CN', {
+  maximumFractionDigits: 1,
+});
+
+type FormatBytesOptions = {
+  emptyText?: string;
+  zeroText?: string;
+};
+
+export function formatCompactNumber(value?: number | null) {
+  if (value === undefined || value === null || Number.isNaN(value)) {
+    return '—';
+  }
+  return compactNumberFormatter.format(value);
+}
+
+export function formatPercent(value?: number | null) {
+  if (value === undefined || value === null || Number.isNaN(value)) {
+    return '—';
+  }
+  return `${formatCompactNumber(value)}%`;
+}
+
+export function formatBytes(
+  value?: number | null,
+  options: FormatBytesOptions = {},
+) {
+  const { emptyText = '—', zeroText = '0 B' } = options;
+
+  if (value === undefined || value === null || Number.isNaN(value)) {
+    return emptyText;
+  }
+  if (value <= 0) {
+    return zeroText;
+  }
+
+  const units = ['B', 'KB', 'MB', 'GB', 'TB'];
+  let current = value;
+  let index = 0;
+  while (current >= 1024 && index < units.length - 1) {
+    current /= 1024;
+    index += 1;
+  }
+
+  const digits = current >= 100 || index === 0 ? 0 : 1;
+  return `${new Intl.NumberFormat('zh-CN', {
+    maximumFractionDigits: digits,
+    minimumFractionDigits: 0,
+  }).format(current)} ${units[index]}`;
+}
+
+export function formatBytesPerSecond(
+  value?: number | null,
+  windowSeconds = 1,
+  options?: FormatBytesOptions,
+) {
+  if (value === undefined || value === null || Number.isNaN(value)) {
+    return options?.emptyText ?? '—';
+  }
+  if (windowSeconds <= 0) {
+    return options?.emptyText ?? '—';
+  }
+  return `${formatBytes(value / windowSeconds, options)}/s`;
+}
+
+export function calculateNiceAxisMax(values: number[]) {
+  const rawMax = Math.max(
+    0,
+    ...values.map((value) => (Number.isFinite(value) && value > 0 ? value : 0)),
+  );
+
+  if (rawMax <= 0) {
+    return 1;
+  }
+
+  const paddedMax = rawMax * 1.1;
+  const magnitude = 10 ** Math.floor(Math.log10(paddedMax));
+  const normalized = paddedMax / magnitude;
+  const steps = [1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10];
+  const niceStep = steps.find((step) => normalized <= step) ?? 10;
+
+  return niceStep * magnitude;
+}