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import {AtUri} from '../third-party/uri'
import {Entity} from '../third-party/api/src/client/types/app/bsky/feed/post'
import {PROD_SERVICE} from '../state'
export const MAX_DISPLAY_NAME = 64
export const MAX_DESCRIPTION = 256
export function pluralize(n: number, base: string, plural?: string): string {
if (n === 1) {
return base
}
if (plural) {
return plural
}
return base + 's'
}
export function makeRecordUri(
didOrName: string,
collection: string,
rkey: string,
) {
const urip = new AtUri(`at://host/`)
urip.host = didOrName
urip.collection = collection
urip.rkey = rkey
return urip.toString()
}
const MINUTE = 60
const HOUR = MINUTE * 60
const DAY = HOUR * 24
const MONTH = DAY * 30
const YEAR = DAY * 365
export function ago(date: number | string | Date): string {
let ts: number
if (typeof date === 'string') {
ts = Number(new Date(date))
} else if (date instanceof Date) {
ts = Number(date)
} else {
ts = date
}
const diffSeconds = Math.floor((Date.now() - ts) / 1e3)
if (diffSeconds < MINUTE) {
return `${diffSeconds}s`
} else if (diffSeconds < HOUR) {
return `${Math.floor(diffSeconds / MINUTE)}m`
} else if (diffSeconds < DAY) {
return `${Math.floor(diffSeconds / HOUR)}h`
} else if (diffSeconds < MONTH) {
return `${Math.floor(diffSeconds / DAY)}d`
} else if (diffSeconds < YEAR) {
return `${Math.floor(diffSeconds / MONTH)}mo`
} else {
return new Date(ts).toLocaleDateString()
}
}
export function extractEntities(
text: string,
knownHandles?: Set<string>,
): Entity[] | undefined {
let match
let ents: Entity[] = []
{
// mentions
const re = /(^|\s)(@)([a-zA-Z0-9\.-]+)(\b)/dg
while ((match = re.exec(text))) {
if (knownHandles && !knownHandles.has(match[3])) {
continue // not a known handle
} else if (!match[3].includes('.')) {
continue // probably not a handle
}
ents.push({
type: 'mention',
value: match[3],
index: {
start: match.indices[2][0], // skip the (^|\s) but include the '@'
end: match.indices[3][1],
},
})
}
}
{
// links
const re =
/(^|\s)((https?:\/\/[\S]+)|([a-z][a-z0-9]*(\.[a-z0-9]+)+[\S]*))(\b)/dg
while ((match = re.exec(text))) {
let value = match[2]
if (!value.startsWith('http')) {
value = `https://${value}`
}
ents.push({
type: 'link',
value,
index: {
start: match.indices[2][0], // skip the (^|\s)
end: match.indices[2][1],
},
})
}
}
return ents.length > 0 ? ents : undefined
}
interface DetectedLink {
link: string
}
type DetectedLinkable = string | DetectedLink
export function detectLinkables(text: string): DetectedLinkable[] {
const re =
/((^|\s)@[a-z0-9\.-]*)|((^|\s)https?:\/\/[\S]+)|((^|\s)[a-z][a-z0-9]*(\.[a-z0-9]+)+[\S]*)/gi
const segments = []
let match
let start = 0
while ((match = re.exec(text))) {
let matchIndex = match.index
let matchValue = match[0]
if (/\s/.test(matchValue)) {
// HACK
// skip the starting space
// we have to do this because RN doesnt support negative lookaheads
// -prf
matchIndex++
matchValue = matchValue.slice(1)
}
if (start !== matchIndex) {
segments.push(text.slice(start, matchIndex))
}
segments.push({link: matchValue})
start = matchIndex + matchValue.length
}
if (start < text.length) {
segments.push(text.slice(start))
}
return segments
}
export function makeValidHandle(str: string): string {
if (str.length > 20) {
str = str.slice(0, 20)
}
str = str.toLowerCase()
return str.replace(/^[^a-z]+/g, '').replace(/[^a-z0-9-]/g, '')
}
export function createFullHandle(name: string, domain: string): string {
name = name.replace(/[\.]+$/, '')
domain = domain.replace(/^[\.]+/, '')
return `${name}.${domain}`
}
export function enforceLen(str: string, len: number): string {
str = str || ''
if (str.length > len) {
return str.slice(0, len)
}
return str
}
export function cleanError(str: string): string {
if (str.includes('Network request failed')) {
return 'Unable to connect. Please check your internet connection and try again.'
}
if (str.startsWith('Error: ')) {
return str.slice('Error: '.length)
}
return str
}
export function toNiceDomain(url: string): string {
try {
const urlp = new URL(url)
if (`https://${urlp.host}` === PROD_SERVICE) {
return 'Bluesky Social'
}
return urlp.host
} catch (e) {
return url
}
}
export function toShortUrl(url: string): string {
try {
const urlp = new URL(url)
const shortened =
urlp.host +
(urlp.pathname === '/' ? '' : urlp.pathname) +
urlp.search +
urlp.hash
if (shortened.length > 30) {
return shortened.slice(0, 27) + '...'
}
return shortened
} catch (e) {
return url
}
}
export function toShareUrl(url: string): string {
if (!url.startsWith('https')) {
const urlp = new URL('https://bsky.app')
urlp.pathname = url
url = urlp.toString()
}
return url
}
export function convertBskyAppUrlIfNeeded(url: string): string {
if (url.startsWith('https://bsky.app/')) {
try {
const urlp = new URL(url)
return urlp.pathname
} catch (e) {
console.log('Unexpected error in convertBskyAppUrlIfNeeded()', e)
}
}
return url
}
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