41 lines
1.4 KiB
TypeScript
Executable File
41 lines
1.4 KiB
TypeScript
Executable File
import * as z from 'zod';
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import type { Prisma } from '../../generated/prisma';
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import Decimal from "decimal.js";
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// DECIMAL HELPERS
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//------------------------------------------------------
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export const DecimalJSLikeSchema: z.ZodType<Prisma.DecimalJsLike> = z.object({
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d: z.array(z.number()),
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e: z.number(),
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s: z.number(),
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// Zod v3/v4 compatible callable check
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toFixed: z.custom<Prisma.DecimalJsLike['toFixed']>((v) => typeof v === 'function'),
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});
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// Accept canonical decimal strings (+/-, optional fraction, optional exponent), or Infinity/NaN.
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export const DECIMAL_STRING_REGEX = /^(?:[+-]?(?:[0-9]+(?:.[0-9]+)?(?:[eE][+-]?[0-9]+)?|Infinity)|NaN)$/;
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export const isValidDecimalInput = (
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v?: null | string | number | Prisma.DecimalJsLike,
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): v is string | number | Prisma.DecimalJsLike => {
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if (v === undefined || v === null) return false;
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return (
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// Explicit instance checks first
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v instanceof Decimal ||
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// If Decimal.js is present and imported by the generator, this symbol exists at runtime
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// eslint-disable-next-line @typescript-eslint/ban-ts-comment
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// @ts-ignore - Decimal may be undefined when not installed; codegen controls the import
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(typeof Decimal !== 'undefined' && v instanceof Decimal) ||
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(typeof v === 'object' &&
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'd' in v &&
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'e' in v &&
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's' in v &&
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'toFixed' in v) ||
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(typeof v === 'string' && DECIMAL_STRING_REGEX.test(v)) ||
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typeof v === 'number'
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);
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};
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