{"version":3,"file":"iso-8601.mjs","sources":["../../../../src/predefined/brand/string/iso-8601.mts"],"sourcesContent":["import {\n type Brand,\n type NonEmptyString,\n type StrictOmit,\n} from 'ts-type-forge';\nimport { brand } from '../../../brand/index.mjs';\nimport { boolean, string } from '../../../primitives/index.mjs';\nimport { record } from '../../../record/index.mjs';\nimport { type Type, type TypeOf } from '../../../type.mjs';\n\n// A valid ISO 8601 string always begins with a 4-digit year, so `Iso8601` is\n// branded on top of `NonEmptyString` and is assignable to it.\nexport type Iso8601 = Brand;\n\n/**\n * @link https://github.com/validatorjs/validator.js/tree/v13.1.17?tab=readme-ov-file#validators\n * @link https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString\n * @link https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date-time-string-format\n */\nexport const iso8601 = (options?: ISO8601ValidatorOption): Type => {\n const filledOptions = ISO8601ValidatorOption.fill(options);\n\n const is = isISO8601(filledOptions);\n\n return brand({\n baseType: string(filledOptions.defaultValue, { nonempty: true }),\n is,\n brandKeys: ['Iso8601'],\n typeName: 'Iso8601',\n });\n};\n\nconst ISO8601ValidatorOption = record({\n /**\n * If strict is true, date strings with invalid dates like 2009-02-29 will be invalid.\n */\n strict: boolean(false),\n\n /**\n * If strictSeparator is true, date strings with date and time separated by anything other than a T will be invalid.\n */\n strictSeparator: boolean(false),\n\n /**\n * @default new Date().toISOString()\n */\n // eslint-disable-next-line unicorn/no-unreadable-new-expression\n defaultValue: string(new Date().toISOString()),\n});\n\ntype ISO8601ValidatorOption = TypeOf;\n\nconst isISO8601 =\n (options?: Partial>) =>\n (str: string): str is Iso8601 => {\n const filledOptions = ISO8601ValidatorOption.fill(options);\n\n const check = filledOptions.strictSeparator\n ? regexpIso8601StrictSeparator.test(str)\n : regexpIso8601.test(str);\n\n if (check && filledOptions.strict) return isValidDate(str);\n\n return check;\n };\n\n// from http://goo.gl/0ejHHW\nconst regexpIso8601 =\n // eslint-disable-next-line security/detect-unsafe-regex\n /^([+-]?\\d{4}(?!\\d{2}\\b))((-?)((0[1-9]|1[0-2])(\\3([12]\\d|0[1-9]|3[01]))?|W([0-4]\\d|5[0-3])(-?[1-7])?|(00[1-9]|0[1-9]\\d|[12]\\d{2}|3([0-5]\\d|6[1-6])))([\\sT]((([01]\\d|2[0-3])((:?)[0-5]\\d)?|24:?00)([,.]\\d+(?!:))?)?(\\17[0-5]\\d([,.]\\d+)?)?([Zz]|([+-])([01]\\d|2[0-3]):?([0-5]\\d)?)?)?)?$/u;\n\n// same as above, except with a strict 'T' separator between date and time\nconst regexpIso8601StrictSeparator =\n // eslint-disable-next-line security/detect-unsafe-regex\n /^([+-]?\\d{4}(?!\\d{2}\\b))((-?)((0[1-9]|1[0-2])(\\3([12]\\d|0[1-9]|3[01]))?|W([0-4]\\d|5[0-3])(-?[1-7])?|(00[1-9]|0[1-9]\\d|[12]\\d{2}|3([0-5]\\d|6[1-6])))(T((([01]\\d|2[0-3])((:?)[0-5]\\d)?|24:?00)([,.]\\d+(?!:))?)?(\\17[0-5]\\d([,.]\\d+)?)?([Zz]|([+-])([01]\\d|2[0-3]):?([0-5]\\d)?)?)?)?$/u;\n\nconst isValidDate = (str: string): boolean => {\n // str must have passed the ISO8601 check\n // this check is meant to catch invalid dates\n // like 2009-02-31\n // first check for ordinal dates\n const ordinalMatch = /^(\\d{4})-?(\\d{3})([ T]\\.*|$)/u.exec(str);\n\n if (ordinalMatch !== null) {\n const oYear = Number(ordinalMatch[1]);\n\n const oDay = Number(ordinalMatch[2]);\n\n // if is leap year\n if ((oYear % 4 === 0 && oYear % 100 !== 0) || oYear % 400 === 0)\n return oDay <= 366;\n\n return oDay <= 365;\n }\n\n const match = /(\\d{4})-?(\\d{0,2})-?(\\d*)/u.exec(str)?.map(Number);\n\n const year = match?.[1];\n\n const month: number | undefined = match?.[2];\n\n const date: number | undefined = match?.[3];\n\n // create a date object and compare\n const d = new Date(\n `${year}-${`0${month ?? 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