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// Random utility functions that are not related to Hypixel
export function undashUuid(uuid: string): string {
return uuid.replace(/-/g, '').toLowerCase()
}
export function jsonToQuery(data): string {
return Object.entries(data || {}).map(e => e.join('=')).join('&')
}
export function shuffle<T>(a: T[]): T[] {
for (let i = a.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1))
;[a[i], a[j]] = [a[j], a[i]]
}
return a
}
export const minecraftColorCodes: { [key: string]: string } = {
'0': '#000000',
'1': '#0000be',
'2': '#00be00',
'3': '#00bebe',
'4': '#be0000', // red
'5': '#be00be',
'6': '#ffaa00', // gold
'7': '#bebebe',
'8': '#3f3f3f',
'9': '#3f3ffe',
'a': '#3ffe3f',
'b': '#3ffefe',
'c': '#fe3f3f', // light red
'd': '#fe3ffe',
'e': '#fefe3f',
'f': '#ffffff',
'black': '#000000',
'dark_blue': '#0000be',
'dark_green': '#00be00',
'dark_aqua': '#00bebe',
'dark_red': '#be0000', // red
'dark_purple': '#be00be',
'gold': '#ffaa00', // gold
'gray': '#bebebe',
'dark_gray': '#3f3f3f',
'blue': '#3f3ffe',
'green': '#3ffe3f',
'aqua': '#3ffefe',
'red': '#fe3f3f', // light red
'light_purple': '#fe3ffe',
'yellow': '#fefe3f',
'white': '#ffffff',
}
/**
* Converts a color name to the code
* For example: blue -> 9
* @param colorName The name of the color (blue, red, aqua, etc)
*/
export function colorCodeFromName(colorName: string): string | null {
const hexColor = minecraftColorCodes[colorName.toLowerCase()]
for (const key in minecraftColorCodes) {
const value = minecraftColorCodes[key]
if (key.length === 1 && value === hexColor)
return key
}
return null
}
export function letterFromColorCode(colorCode: string): string | null {
for (const [key, value] of Object.entries(minecraftColorCodes)) {
if (value === colorCode)
return key
}
return null
}
export async function sleep(ms: number): Promise<void> {
await new Promise(resolve => setTimeout(resolve, ms))
}
/** Returns whether a string is a UUID4 (Minecraft uuid) */
export function isUuid(string: string) {
return undashUuid(string).length === 32
}
/**
* Get a level for an amount of total xp
* @param xp The xp we're finding the level for
* @param xpTable The list of required xp values for each level, starting at 1
*/
export function levelFromXpTable(xp: number, xpTable: number[]) {
const skillLevel = [...xpTable].reverse().findIndex(levelXp => xp >= levelXp)
return skillLevel === -1 ? 0 : xpTable.length - skillLevel
}
// https://stackoverflow.com/a/51365037
export type RecursivePartial<T> = {
[P in keyof T]?:
T[P] extends (infer U)[] ? RecursivePartial<U>[] :
T[P] extends object ? RecursivePartial<T[P]> :
T[P]
}
let caches: Map<string, {
data: any
isFetching: boolean
nextUpdate: Date
}> = new Map()
export async function withCache<T>(key: string, ttl: number | ((arg: T) => Date), task: () => Promise<T>): Promise<T> {
if (caches.get(key)?.data && caches.get(key)!.nextUpdate > new Date())
return caches.get(key)!.data
// if it's currently fetching the election data and it doesn't have it,
// wait until we do have the election data
if (caches.get(key)?.isFetching && !caches.get(key)?.data) {
await new Promise(resolve => {
const interval = setInterval(() => {
if (caches.get(key)?.data) {
clearInterval(interval)
resolve(caches.get(key)!.data)
}
}, 100)
})
}
caches.set(key, {
...(caches.get(key) ?? { data: undefined, nextUpdate: new Date(0) }),
isFetching: true,
})
const data = await task().catch(e => {
console.error(e)
caches.set(key, {
...(caches.get(key) ?? { data: undefined, nextUpdate: new Date(0) }),
isFetching: false,
})
return undefined
})
caches.set(key, {
...caches.get(key)!,
isFetching: false,
})
if (!data) return undefined as any
caches.set(key, {
...caches.get(key)!,
data
})
const nextUpdate = typeof ttl === 'number' ? new Date(Date.now() + ttl) : ttl(data)
caches.set(key, {
...caches.get(key)!,
nextUpdate
})
return data
}
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