33 lines
1.0 KiB
TypeScript
33 lines
1.0 KiB
TypeScript
import * as nip19 from "nostr-tools/nip19"
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import {range, DAY, hexToBytes, bytesToHex} from "@welshman/lib"
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export const nsecEncode = (secret: string) => nip19.nsecEncode(hexToBytes(secret))
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export const nsecDecode = (nsec: string) => {
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const {type, data} = nip19.decode(nsec)
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if (type !== "nsec") throw new Error(`Invalid nsec: ${nsec}`)
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return bytesToHex(data)
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}
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export const day = (seconds: number) => Math.floor(seconds / DAY)
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export const daysBetween = (start: number, end: number) => [...range(start, end, DAY)].map(day)
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export const ucFirst = (s: string) => s.slice(0, 1).toUpperCase() + s.slice(1)
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export const errorMessage = (err: unknown) => String(err).replace(/^.*Error: /, "")
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export const buildUrl = (base: string | URL, ...pathname: string[]) => {
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const url = new URL(base)
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url.pathname = "/" + pathname.join("/")
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return url.toString()
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}
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export const addPeriod = (s: string) => (s + ".").replace(/\.+$/, ".")
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export const normalizeTopic = (topic: string) => topic.trim().replace(/^#+/, "").toLowerCase()
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