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Fix of DateFromISODateStringIO #122

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Merged
merged 1 commit into from
Jul 29, 2020
Merged

Fix of DateFromISODateStringIO #122

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20 changes: 3 additions & 17 deletions src/language/typescript/common/bundled/utils.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -9,27 +9,13 @@ const utils = `
import { either } from 'fp-ts/lib/Either';
import { Type, failure, success, string as tstring } from 'io-ts';

const getISOTimezoneOffsetString = (offsetMinutes: number): string => {
if (offsetMinutes === 0) {
return 'Z';
}

const absoluteOffsetMinutes = Math.abs(offsetMinutes);
const offsetHours = absoluteOffsetMinutes / 60;
const offsetRestMinutes = absoluteOffsetMinutes % 60;

return \`\${offsetMinutes > 0 ? '-' : '+'}\${offsetHours
.toString()
.padStart(2, '0')}:\${offsetRestMinutes.toString().padStart(2, '0')}\`;
};

export const DateFromISODateStringIO = new Type<Date, string, unknown>(
'DateFromISODateString',
(u): u is Date => u instanceof Date,
(u, c) =>
either.chain(tstring.validate(u, c), s => {
const offset = new Date().getTimezoneOffset();
const d = new Date(\`\${s}T00:00:00\${getISOTimezoneOffsetString(offset)}\`);
either.chain(tstring.validate(u, c), dateString => {
const [year, calendarMonth, day] = dateString.split('-');
const d = new Date(+year, +calendarMonth - 1, +day);
return isNaN(d.getTime()) ? failure(u, c) : success(d);
}),
a =>
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