53 lines
2.1 KiB
TypeScript
53 lines
2.1 KiB
TypeScript
/** Формат скорости: Кбит/с при < 1 Мбит/с, иначе Мбит/с / Гбит/с. */
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export function fmtRate(v: number | null | undefined): string {
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if (v == null) return "—"
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if (!Number.isFinite(v) || v <= 0) return "0 Кбит/с"
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if (v < 0.0005) return "<1 Кбит/с"
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if (v >= 1000) return `${(v / 1000).toFixed(2)} Гбит/с`
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if (v < 1) return `${Math.round(v * 1000)} Кбит/с`
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if (v < 10) return `${v.toFixed(2)} Мбит/с`
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if (v < 100) return `${v.toFixed(1)} Мбит/с`
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return `${Math.round(v)} Мбит/с`
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}
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const binaryFormatter = new Intl.NumberFormat("ru-RU", { maximumFractionDigits: 2 })
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/** Traffic API volumeUnit=GiB: preserve binary units and never format positive bytes as zero. */
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export function fmtGiB(v: number | null | undefined): string {
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if (v == null || !Number.isFinite(v) || v < 0) return "—"
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const bytes = v * 1024 ** 3
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if (!Number.isFinite(bytes)) return "—"
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if (bytes === 0) return "0 Б"
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if (bytes < 1) return "<1 Б"
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const units = ["Б", "КиБ", "МиБ", "ГиБ", "ТиБ", "ПиБ"]
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const index = Math.min(units.length - 1, Math.floor(Math.log(bytes) / Math.log(1024)))
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return `${binaryFormatter.format(bytes / 1024 ** index)} ${units[index]}`
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}
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export function formatBytes(n: number): string {
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if (!Number.isFinite(n) || n <= 0) return "0 Б"
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if (n >= 1_000_000_000_000) return `${(n / 1_000_000_000_000).toFixed(2)} ТБ`
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if (n >= 1_000_000_000) return `${(n / 1_000_000_000).toFixed(2)} ГБ`
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if (n >= 1_000_000) return `${(n / 1_000_000).toFixed(1)} МБ`
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if (n >= 1000) return `${(n / 1000).toFixed(1)} КБ`
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return `${Math.round(n)} Б`
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}
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/** API bitrate is bits/s; fmtRate expects Мбит/с. */
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export function fmtBps(bps: number): string {
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return fmtRate(bps / 1_000_000)
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}
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export const TRAFFIC_RANGE_MINUTES: Record<string, number> = {
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"5m": 5,
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"15m": 15,
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"1h": 60,
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"4h": 240,
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"24h": 1440,
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}
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export function formatRangeAgo(minutesAgo: number): string {
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if (minutesAgo <= 0) return "сейчас"
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if (minutesAgo < 60) return `−${minutesAgo}м`
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return `−${Math.round(minutesAgo / 60)}ч`
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}
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