| 1 | import type { Verification } from "./types";
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| 2 |
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| 3 | type PostalCodeOptions = {
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| 4 | minLength?: number;
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| 5 | };
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| 6 |
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| 7 | const DEFAULT_MIN_POSTAL_CODE_LENGTH = 3;
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| 8 |
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| 9 | function verification(
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| 10 | isValid: boolean,
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| 11 | isPotentiallyValid: boolean,
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| 12 | ): Verification {
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| 13 | return { isValid, isPotentiallyValid };
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| 14 | }
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| 15 |
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| 16 | export function postalCode(
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| 17 | value: string | unknown,
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| 18 | options: PostalCodeOptions = {},
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| 19 | ): Verification {
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| 20 | const minLength = options.minLength || DEFAULT_MIN_POSTAL_CODE_LENGTH;
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| 21 |
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| 22 | if (typeof value !== "string") {
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| 23 | return verification(false, false);
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| 24 | } else if (value.length < minLength) {
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| 25 | return verification(false, true);
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| 26 | }
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| 27 |
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| 28 | return verification(true, true);
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| 29 | }
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