37 lines
1.2 KiB
TypeScript
37 lines
1.2 KiB
TypeScript
  
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/*
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Copyright 2026 Element Creations Ltd.
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SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
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Please see LICENSE files in the repository root for full details.
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*/
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const MAX_STATUS_TEXT_BYTES = 256;
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export interface UserStatus {
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emoji: string;
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text: string;
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}
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export function userStatusTextWithinMaxLength(text: string): boolean {
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const textEncoder = new TextEncoder();
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return textEncoder.encode(text).length <= MAX_STATUS_TEXT_BYTES;
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}
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export function validateUserStatus(rawUserStatus: unknown): UserStatus | undefined {
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if (typeof rawUserStatus !== "object" || rawUserStatus === null) {
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return undefined;
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}
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if ("emoji" in rawUserStatus === false || typeof rawUserStatus.emoji !== "string" || !rawUserStatus.emoji) {
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return undefined;
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}
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if ("text" in rawUserStatus === false || typeof rawUserStatus.text !== "string" || !rawUserStatus.text) {
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return undefined;
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}
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return {
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emoji: rawUserStatus.emoji,
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text: userStatusTextWithinMaxLength(rawUserStatus.text)
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? rawUserStatus.text
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: `${rawUserStatus.text.slice(0, MAX_STATUS_TEXT_BYTES)}…`,
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};
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}
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