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Merge pull request #167 from AshAnand34/crontab-guru-tool

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Crontab guru tool
This commit is contained in:
Ibrahima G. Coulibaly
2025-07-08 18:01:16 +01:00
committed by GitHub
parent 816a098971 5133d0dce2
commit d47fc0812d
9 changed files with 377 additions and 154 deletions
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303
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17
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@@ -26,6 +26,8 @@
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"buffer": "^6.0.3",
"color": "^4.2.3",
"cron-validator": "^1.3.1",
"cronstrue": "^3.0.0",
"dayjs": "^1.11.13",
"formik": "^2.4.6",
"jimp": "^0.22.12",
@@ -4819,6 +4821,21 @@
"node": ">= 6"
}
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2
package.json
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@@ -43,6 +43,8 @@
"browser-image-compression": "^2.0.2",
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"dayjs": "^1.11.13",
"formik": "^2.4.6",
"jimp": "^0.22.12",

5
src/components/input/ToolTextInput.tsx
View File

@@ -7,11 +7,13 @@ import InputFooter from './InputFooter';
export default function ToolTextInput({
value,
onChange,
title = 'Input text'
title = 'Input text',
placeholder
}: {
title?: string;
value: string;
onChange: (value: string) => void;
placeholder?: string;
}) {
const { showSnackBar } = useContext(CustomSnackBarContext);
const fileInputRef = useRef<HTMLInputElement>(null);
@@ -50,6 +52,7 @@ export default function ToolTextInput({
fullWidth
multiline
rows={10}
placeholder={placeholder}
sx={{
'&.MuiTextField-root': {
backgroundColor: 'background.paper'

26
src/pages/tools/time/crontab-guru/crontab-guru.service.test.ts Normal file
View File

@@ -0,0 +1,26 @@
import { expect, describe, it } from 'vitest';
import { validateCrontab, explainCrontab } from './service';
describe('crontab-guru service', () => {
it('validates correct crontab expressions', () => {
expect(validateCrontab('35 16 * * 0-5')).toBe(true);
expect(validateCrontab('* * * * *')).toBe(true);
expect(validateCrontab('0 12 1 * *')).toBe(true);
});
it('invalidates incorrect crontab expressions', () => {
expect(validateCrontab('invalid expression')).toBe(false);
expect(validateCrontab('61 24 * * *')).toBe(false);
});
it('explains valid crontab expressions', () => {
expect(explainCrontab('35 16 * * 0-5')).toMatch(/At 04:35 PM/);
expect(explainCrontab('* * * * *')).toMatch(/Every minute/);
});
it('returns error for invalid crontab explanation', () => {
expect(explainCrontab('invalid expression')).toMatch(
/Invalid crontab expression/
);
});
});

128
src/pages/tools/time/crontab-guru/index.tsx Normal file
View File

@@ -0,0 +1,128 @@
import { Alert } from '@mui/material';
import React, { useState } from 'react';
import ToolContent from '@components/ToolContent';
import { ToolComponentProps } from '@tools/defineTool';
import ToolTextInput from '@components/input/ToolTextInput';
import ToolTextResult from '@components/result/ToolTextResult';
import { CardExampleType } from '@components/examples/ToolExamples';
import { main, validateCrontab } from './service';
const initialValues = {};
type InitialValuesType = typeof initialValues;
const exampleCards: CardExampleType<InitialValuesType>[] = [
{
title: 'Every day at 16:35, Sunday to Friday',
description: 'At 16:35 on every day-of-week from Sunday through Friday.',
sampleText: '35 16 * * 0-5',
sampleResult: 'At 04:35 PM, Sunday through Friday',
sampleOptions: {}
},
{
title: 'Every minute',
description: 'Runs every minute.',
sampleText: '* * * * *',
sampleResult: 'Every minute',
sampleOptions: {}
},
{
title: 'Every 5 minutes',
description: 'Runs every 5 minutes.',
sampleText: '*/5 * * * *',
sampleResult: 'Every 5 minutes',
sampleOptions: {}
},
{
title: 'At 12:00 PM on the 1st of every month',
description: 'Runs at noon on the first day of each month.',
sampleText: '0 12 1 * *',
sampleResult: 'At 12:00 PM, on day 1 of the month',
sampleOptions: {}
}
];
export default function CrontabGuru({
title,
longDescription
}: ToolComponentProps) {
const [input, setInput] = useState<string>('');
const [result, setResult] = useState<string>('');
const [isValid, setIsValid] = useState<boolean | null>(null);
const [hasInteracted, setHasInteracted] = useState<boolean>(false);
const compute = (values: InitialValuesType, input: string) => {
if (hasInteracted) {
setIsValid(validateCrontab(input));
}
setResult(main(input, values));
};
const handleInputChange = (val: string) => {
if (!hasInteracted) setHasInteracted(true);
setInput(val);
};
return (
<ToolContent
title={title}
input={input}
inputComponent={
<ToolTextInput
value={input}
onChange={handleInputChange}
placeholder="e.g. 35 16 * * 0-5"
/>
}
resultComponent={
<div style={{ position: 'relative', minHeight: 80 }}>
{hasInteracted && isValid === false && (
<div
style={{
position: 'absolute',
top: 0,
left: 0,
width: '100%',
height: '100%',
zIndex: 2,
pointerEvents: 'auto',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
background: 'transparent'
}}
>
<Alert
severity="error"
style={{
width: '80%',
opacity: 0.85,
textAlign: 'center',
pointerEvents: 'none'
}}
>
Invalid crontab expression.
</Alert>
</div>
)}
<div
style={{
filter: hasInteracted && isValid === false ? 'blur(1px)' : 'none',
transition: 'filter 0.2s'
}}
>
<ToolTextResult
value={hasInteracted && isValid === false ? '' : result}
/>
</div>
</div>
}
initialValues={initialValues}
exampleCards={exampleCards}
getGroups={null}
setInput={setInput}
compute={compute}
toolInfo={{ title: `What is a ${title}?`, description: longDescription }}
/>
);
}

24
src/pages/tools/time/crontab-guru/meta.ts Normal file
View File

@@ -0,0 +1,24 @@
import { defineTool } from '@tools/defineTool';
import { lazy } from 'react';
export const tool = defineTool('time', {
name: 'Crontab explainer',
path: 'crontab-guru',
icon: 'mdi:calendar-clock',
description:
'Parse, validate, and explain crontab expressions in plain English.',
shortDescription: 'Crontab expression parser and explainer',
keywords: [
'crontab',
'cron',
'schedule',
'guru',
'time',
'expression',
'parser',
'explain'
],
longDescription:
'Enter a crontab expression (like "35 16 * * 0-5") to get a human-readable explanation and validation. Useful for understanding and debugging cron schedules. Inspired by crontab.guru.',
component: lazy(() => import('./index'))
});

22
src/pages/tools/time/crontab-guru/service.ts Normal file
View File

@@ -0,0 +1,22 @@
import cronstrue from 'cronstrue';
import { isValidCron } from 'cron-validator';
export function explainCrontab(expr: string): string {
try {
return cronstrue.toString(expr);
} catch (e: any) {
return `Invalid crontab expression: ${e.message}`;
}
}
export function validateCrontab(expr: string): boolean {
return isValidCron(expr, { seconds: false, allowBlankDay: true });
}
export function main(input: string, _options: any): string {
if (!input.trim()) return '';
if (!validateCrontab(input)) {
return 'Invalid crontab expression.';
}
return explainCrontab(input);
}

4
src/pages/tools/time/index.ts
View File

@@ -1,3 +1,4 @@
import { tool as timeCrontabGuru } from './crontab-guru/meta';
import { tool as timeBetweenDates } from './time-between-dates/meta';
import { tool as daysDoHours } from './convert-days-to-hours/meta';
import { tool as hoursToDays } from './convert-hours-to-days/meta';
@@ -11,5 +12,6 @@ export const timeTools = [
convertSecondsToTime,
convertTimetoSeconds,
truncateClockTime,
timeBetweenDates
timeBetweenDates,
timeCrontabGuru
];