({
decimalSeparator = null,
decimals = null,
} = {})
| 2 | import { KEYS } from './constants'; |
| 3 | |
| 4 | export default function createKeypadRule({ |
| 5 | decimalSeparator = null, |
| 6 | decimals = null, |
| 7 | } = {}) { |
| 8 | return function handler(currentAmount, inputKey) { |
| 9 | if (!currentAmount) { |
| 10 | currentAmount = '0'; |
| 11 | } |
| 12 | |
| 13 | switch (inputKey) { |
| 14 | case KEYS.PERIOD: { |
| 15 | if (!decimalSeparator || decimals === 0 || decimals === false) { |
| 16 | return currentAmount; |
| 17 | } |
| 18 | |
| 19 | if (currentAmount.includes(decimalSeparator)) { |
| 20 | return currentAmount; |
| 21 | } |
| 22 | |
| 23 | return `${currentAmount}${decimalSeparator}`; |
| 24 | } |
| 25 | case KEYS.BACK: { |
| 26 | if (currentAmount === '0') { |
| 27 | return currentAmount; |
| 28 | } |
| 29 | if (regex.hasOneDigit.test(currentAmount)) { |
| 30 | return '0'; |
| 31 | } |
| 32 | |
| 33 | return currentAmount.slice(0, -1); |
| 34 | } |
| 35 | case KEYS.INITIAL: { |
| 36 | return '0'; |
| 37 | } |
| 38 | case KEYS.DIGIT_0: |
| 39 | case KEYS.DIGIT_1: |
| 40 | case KEYS.DIGIT_2: |
| 41 | case KEYS.DIGIT_3: |
| 42 | case KEYS.DIGIT_4: |
| 43 | case KEYS.DIGIT_5: |
| 44 | case KEYS.DIGIT_6: |
| 45 | case KEYS.DIGIT_7: |
| 46 | case KEYS.DIGIT_8: |
| 47 | case KEYS.DIGIT_9: { |
| 48 | if (currentAmount === '0') { |
| 49 | return inputKey; |
| 50 | } |
| 51 | |
| 52 | if (hasDecimals(decimalSeparator, decimals).test(currentAmount)) { |
| 53 | return currentAmount; |
| 54 | } |
| 55 | |
| 56 | return `${currentAmount}${inputKey}`; |
| 57 | } |
| 58 | default: { |
| 59 | return currentAmount; |
| 60 | } |
| 61 | } |
no test coverage detected