Files
cinny/src/app/utils/common.ts
T
Lotus Bot ff7c2ed941 Bug fixes, security hardening, and performance improvements
- BUG-16: Fixed pagination deadlock (fetching flag stuck on error path)
- BUG-17: Fixed absoluteIndex===0 falsy check skipping unread jump
- BUG-19: Fixed mEvt.getRoomId()! non-null assertion crash
- BUG-20: Wrapped getSettings()/setSettings() in try/catch for corrupt localStorage
- SEC: Replaced randomStr() Math.random() with crypto.getRandomValues() CSPRNG
- SEC: Fixed afterLoginRedirectPath open redirect validation
- SEC: Narrowed OSM iframe sandbox to scripts-only (removed allow-same-origin)
- Perf-2: Memoized selectAtom in useSetting (prevented new atom ref per render)
- Perf-4: Fixed typingMembers setTimeout leak (tracked timers per user/room)
- Perf-8: Memoized getChatBg() result in RoomView (not inline in JSX)
- Perf-12: Replaced body.class * font-family with body.class (inherited)
- Perf-15: Memoized typingNames array chain in RoomViewTyping
- Perf-9: Added blob URL cleanup useEffect in AudioContent
- BUG: Fixed forEach(async) -> Promise.all in useCommands join handler
- BUG: Fixed useCompositionEndTracking missing dependency array
- A11y: Fixed spoiler button aria-pressed + keyboard handler
- A11y: Added aria-label to Send message button
- Build: Set sourcemap:false, removed netlify.toml from copyFiles

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-20 21:11:38 -04:00

144 lines
4.3 KiB
TypeScript

import { IconName, IconSrc } from 'folds';
export const bytesToSize = (bytes: number): string => {
const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
if (bytes === 0) return '0KB';
let sizeIndex = Math.floor(Math.log(bytes) / Math.log(1000));
if (sizeIndex === 0) sizeIndex = 1;
return `${(bytes / 1000 ** sizeIndex).toFixed(1)} ${sizes[sizeIndex]}`;
};
export const millisecondsToMinutesAndSeconds = (milliseconds: number): string => {
const seconds = Math.floor(milliseconds / 1000);
const mm = Math.floor(seconds / 60);
const ss = Math.round(seconds % 60);
return `${mm}:${ss < 10 ? '0' : ''}${ss}`;
};
export const millisecondsToMinutes = (milliseconds: number): string => {
const seconds = Math.floor(milliseconds / 1000);
const mm = Math.floor(seconds / 60);
return mm.toString();
};
export const secondsToMinutesAndSeconds = (seconds: number): string => {
const mm = Math.floor(seconds / 60);
const ss = Math.round(seconds % 60);
return `${mm}:${ss < 10 ? '0' : ''}${ss}`;
};
export const getFileTypeIcon = (icons: Record<IconName, IconSrc>, fileType: string): IconSrc => {
const type = fileType.toLowerCase();
if (type.startsWith('audio')) {
return icons.Play;
}
if (type.startsWith('video')) {
return icons.Vlc;
}
if (type.startsWith('image')) {
return icons.Photo;
}
return icons.File;
};
export const fulfilledPromiseSettledResult = <T>(prs: PromiseSettledResult<T>[]): T[] =>
prs.reduce<T[]>((values, pr) => {
if (pr.status === 'fulfilled') values.push(pr.value);
return values;
}, []);
export const promiseFulfilledResult = <T>(
settledResult: PromiseSettledResult<T>
): T | undefined => {
if (settledResult.status === 'fulfilled') return settledResult.value;
return undefined;
};
export const promiseRejectedResult = <T>(settledResult: PromiseSettledResult<T>): any => {
if (settledResult.status === 'rejected') return settledResult.reason;
return undefined;
};
export const binarySearch = <T>(items: T[], match: (item: T) => -1 | 0 | 1): T | undefined => {
const search = (start: number, end: number): T | undefined => {
if (start > end) return undefined;
const mid = Math.floor((start + end) / 2);
const result = match(items[mid]);
if (result === 0) return items[mid];
if (result === 1) return search(start, mid - 1);
return search(mid + 1, end);
};
return search(0, items.length - 1);
};
export const randomNumberBetween = (min: number, max: number) =>
Math.floor(Math.random() * (max - min + 1)) + min;
export const scaleYDimension = (x: number, scaledX: number, y: number): number => {
const scaleFactor = scaledX / x;
return scaleFactor * y;
};
export const parseGeoUri = (location: string) => {
try {
const [, data] = location.split(':');
const [cords] = data.split(';');
const [latitude, longitude] = cords.split(',');
if (typeof latitude === 'string' && typeof longitude === 'string') {
return {
latitude,
longitude,
};
}
return undefined;
} catch {
return undefined;
}
};
const START_SLASHES_REG = /^\/+/g;
const END_SLASHES_REG = /\/+$/g;
export const trimLeadingSlash = (str: string): string => str.replace(START_SLASHES_REG, '');
export const trimTrailingSlash = (str: string): string => str.replace(END_SLASHES_REG, '');
export const trimSlash = (str: string): string => trimLeadingSlash(trimTrailingSlash(str));
export const nameInitials = (str: string | undefined | null, len = 1): string => {
if (!str) return '';
return [...str].slice(0, len).join('') || '';
};
export const randomStr = (len = 12): string => {
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
const buf = new Uint8Array(len);
crypto.getRandomValues(buf);
return Array.from(buf, (b) => chars[b % chars.length]).join('');
};
export const suffixRename = (name: string, validator: (newName: string) => boolean): string => {
let suffix = 1;
let newName = name;
do {
newName = name + suffix;
suffix += 1;
} while (validator(newName));
return newName;
};
export const replaceSpaceWithDash = (str: string): string => str.replace(/ /g, '-');
export const splitWithSpace = (content: string): string[] => {
const trimmedContent = content.trim();
if (trimmedContent === '') return [];
return trimmedContent.split(' ');
};