boonya/react-hook-form-validation

import { VALIDATION_MESSAGES, ValidatorLengthParams, MinMaxValue, ValidatorResult, ValidatorCommonParams, VALIDATORS, MinMaxMode } from '../types';
import { createValidatorResult } from '../helpers';

export default function create(expected: number, mode: MinMaxMode = 'number', props: ValidatorCommonParams = {}) {
    return { validator: VALIDATORS.min, expected, mode, ...props };
}

function compareNumbers(value: number, expected: number) {
    return !Number.isNaN(value) && value >= expected;
}

function verifyNumber(input: MinMaxValue, expected: number) {
    const number = Number(input);
    const valid = input === undefined || input === '' || compareNumbers(number, expected);
    return { valid, actual: number };
}

function verifyLength(input: MinMaxValue, expected: number) {
    try {
        // eslint-disable-next-line @typescript-eslint/ban-ts-comment
        // @ts-ignore
        const length = [...input].length;
        const valid = length >= expected;
        return { valid, actual: length };
    }
    catch {
        return { valid: false, actual: undefined };
    }
}

export function isValid(input: MinMaxValue, { expected, mode, ...rest }: ValidatorLengthParams): ValidatorResult {
    const { valid, actual } = mode === 'length'
        ? verifyLength(input, expected)
        : verifyNumber(input, expected);

    return createValidatorResult(
        valid,
        { fail: VALIDATION_MESSAGES.min, ...rest },
        [{ expected, actual }],
    );
}