42 lines
987 B
TypeScript
42 lines
987 B
TypeScript
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export const DEFAULT_START_BALANCE = 1500;
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const CODE_CHARS = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789";
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export function createId(): string {
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return crypto.randomUUID();
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}
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export function createSessionCode(existing: Set<string>): string {
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for (let i = 0; i < 1000; i += 1) {
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let code = "";
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for (let j = 0; j < 5; j += 1) {
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code += CODE_CHARS[Math.floor(Math.random() * CODE_CHARS.length)];
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}
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if (!existing.has(code)) {
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return code;
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}
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}
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throw new Error("Unable to allocate session code");
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}
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export function now(): number {
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return Date.now();
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}
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export function parseAmount(value: unknown): number | null {
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if (typeof value === "number" && Number.isFinite(value)) {
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return value;
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}
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if (typeof value === "string") {
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const parsed = Number.parseFloat(value);
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if (Number.isFinite(parsed)) {
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return parsed;
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}
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}
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return null;
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}
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export function clampBalance(value: number): number {
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return Math.round(value * 100) / 100;
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}
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