/* Code modified from ajv-formats
 https://github.com/ajv-validator/ajv-formats/blob/master/src/formats.ts#L45

MIT License

Copyright (c) 2020 Evgeny Poberezkin

TODO: Replace once https://github.com/sinclairzx81/typebox/issues/598 is complete
*/

import { FormatRegistry } from "@sinclair/typebox";

export const registerTypeboxFormats = () => {
  for (const [name, format] of Object.entries(fullFormats)) {
    if (format === true) {
      FormatRegistry.Set(name, () => true);
      continue;
    }

    if (typeof format === "function") {
      FormatRegistry.Set(name, format);
      continue;
    }

    FormatRegistry.Set(name, (value) => format.test(value));
  }
};

export const fullFormats: Record<
  string,
  RegExp | ((v: any) => boolean) | true
> = {
  // date: http://tools.ietf.org/html/rfc3339#section-5.6
  date,
  // date-time: http://tools.ietf.org/html/rfc3339#section-5.6
  time: getTime(true),
  "date-time": getDateTime(true),
  "iso-time": getTime(),
  "iso-date-time": getDateTime(),
  // duration: https://tools.ietf.org/html/rfc3339#appendix-A
  duration:
    /^P(?!$)((\d+Y)?(\d+M)?(\d+D)?(T(?=\d)(\d+H)?(\d+M)?(\d+S)?)?|(\d+W)?)$/,
  uri,
  "uri-reference":
    /^(?:[a-z][a-z0-9+\-.]*:)?(?:\/?\/(?:(?:[a-z0-9\-._~!$&'()*+,;=:]|%[0-9a-f]{2})*@)?(?:\[(?:(?:(?:(?:[0-9a-f]{1,4}:){6}|::(?:[0-9a-f]{1,4}:){5}|(?:[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){4}|(?:(?:[0-9a-f]{1,4}:){0,1}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){3}|(?:(?:[0-9a-f]{1,4}:){0,2}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){2}|(?:(?:[0-9a-f]{1,4}:){0,3}[0-9a-f]{1,4})?::[0-9a-f]{1,4}:|(?:(?:[0-9a-f]{1,4}:){0,4}[0-9a-f]{1,4})?::)(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?))|(?:(?:[0-9a-f]{1,4}:){0,5}[0-9a-f]{1,4})?::[0-9a-f]{1,4}|(?:(?:[0-9a-f]{1,4}:){0,6}[0-9a-f]{1,4})?::)|[Vv][0-9a-f]+\.[a-z0-9\-._~!$&'()*+,;=:]+)\]|(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)|(?:[a-z0-9\-._~!$&'"()*+,;=]|%[0-9a-f]{2})*)(?::\d*)?(?:\/(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})*)*|\/(?:(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})+(?:\/(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})*)*)?|(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})+(?:\/(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})*)*)?(?:\?(?:[a-z0-9\-._~!$&'"()*+,;=:@/?]|%[0-9a-f]{2})*)?(?:#(?:[a-z0-9\-._~!$&'"()*+,;=:@/?]|%[0-9a-f]{2})*)?$/i,
  // uri-template: https://tools.ietf.org/html/rfc6570
  "uri-template":
    /^(?:(?:[^\x00-\x20"'<>%\\^`{|}]|%[0-9a-f]{2})|\{[+#./;?&=,!@|]?(?:[a-z0-9_]|%[0-9a-f]{2})+(?::[1-9][0-9]{0,3}|\*)?(?:,(?:[a-z0-9_]|%[0-9a-f]{2})+(?::[1-9][0-9]{0,3}|\*)?)*\})*$/i,
  // For the source: https://gist.github.com/dperini/729294
  // For test cases: https://mathiasbynens.be/demo/url-regex
  url: /^(?:https?|ftp):\/\/(?:\S+(?::\S*)?@)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z0-9\u{00a1}-\u{ffff}]+-)*[a-z0-9\u{00a1}-\u{ffff}]+)(?:\.(?:[a-z0-9\u{00a1}-\u{ffff}]+-)*[a-z0-9\u{00a1}-\u{ffff}]+)*(?:\.(?:[a-z\u{00a1}-\u{ffff}]{2,})))(?::\d{2,5})?(?:\/[^\s]*)?$/iu,
  email:
    /^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/i,
  hostname:
    /^(?=.{1,253}\.?$)[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[-0-9a-z]{0,61}[0-9a-z])?)*\.?$/i,
  // optimized https://www.safaribooksonline.com/library/view/regular-expressions-cookbook/9780596802837/ch07s16.html
  ipv4: /^(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)$/,
  ipv6: /^((([0-9a-f]{1,4}:){7}([0-9a-f]{1,4}|:))|(([0-9a-f]{1,4}:){6}(:[0-9a-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9a-f]{1,4}:){5}(((:[0-9a-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9a-f]{1,4}:){4}(((:[0-9a-f]{1,4}){1,3})|((:[0-9a-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9a-f]{1,4}:){3}(((:[0-9a-f]{1,4}){1,4})|((:[0-9a-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9a-f]{1,4}:){2}(((:[0-9a-f]{1,4}){1,5})|((:[0-9a-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9a-f]{1,4}:){1}(((:[0-9a-f]{1,4}){1,6})|((:[0-9a-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9a-f]{1,4}){1,7})|((:[0-9a-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))$/i,
  regex,
  // uuid: http://tools.ietf.org/html/rfc4122
  uuid: /^(?:urn:uuid:)?[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$/i,
  // JSON-pointer: https://tools.ietf.org/html/rfc6901
  // uri fragment: https://tools.ietf.org/html/rfc3986#appendix-A
  "json-pointer": /^(?:\/(?:[^~/]|~0|~1)*)*$/,
  "json-pointer-uri-fragment":
    /^#(?:\/(?:[a-z0-9_\-.!$&'()*+,;:=@]|%[0-9a-f]{2}|~0|~1)*)*$/i,
  // relative JSON-pointer: http://tools.ietf.org/html/draft-luff-relative-json-pointer-00
  "relative-json-pointer": /^(?:0|[1-9][0-9]*)(?:#|(?:\/(?:[^~/]|~0|~1)*)*)$/,
  // the following formats are used by the openapi specification: https://spec.openapis.org/oas/v3.0.0#data-types
  // byte: https://github.com/miguelmota/is-base64
  byte,
  // signed 32 bit integer
  int32: validateInt32,
  // signed 64 bit integer
  int64: validateInt64,
  // C-type float
  float: validateNumber,
  // C-type double
  double: validateNumber,
  // hint to the UI to hide input strings
  password: true,
  // unchecked string payload
  binary: true,
};

function isLeapYear(year: number): boolean {
  // https://tools.ietf.org/html/rfc3339#appendix-C
  return year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);
}

const DATE = /^(\d\d\d\d)-(\d\d)-(\d\d)$/;
const DAYS = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];

function date(str: string): boolean {
  // full-date from http://tools.ietf.org/html/rfc3339#section-5.6
  const matches: string[] | null = DATE.exec(str);
  if (!matches) return false;
  const year: number = +matches[1];
  const month: number = +matches[2];
  const day: number = +matches[3];
  return (
    month >= 1 &&
    month <= 12 &&
    day >= 1 &&
    day <= (month === 2 && isLeapYear(year) ? 29 : DAYS[month])
  );
}

const TIME = /^(\d\d):(\d\d):(\d\d(?:\.\d+)?)(z|([+-])(\d\d)(?::?(\d\d))?)?$/i;

function getTime(strictTimeZone?: boolean): (str: string) => boolean {
  return function time(str: string): boolean {
    const matches: string[] | null = TIME.exec(str);
    if (!matches) return false;
    const hr: number = +matches[1];
    const min: number = +matches[2];
    const sec: number = +matches[3];
    const tz: string | undefined = matches[4];
    const tzSign: number = matches[5] === "-" ? -1 : 1;
    const tzH: number = +(matches[6] || 0);
    const tzM: number = +(matches[7] || 0);
    if (tzH > 23 || tzM > 59 || (strictTimeZone && !tz)) return false;
    if (hr <= 23 && min <= 59 && sec < 60) return true;
    // leap second
    const utcMin = min - tzM * tzSign;
    const utcHr = hr - tzH * tzSign - (utcMin < 0 ? 1 : 0);
    return (
      (utcHr === 23 || utcHr === -1) &&
      (utcMin === 59 || utcMin === -1) &&
      sec < 61
    );
  };
}

const DATE_TIME_SEPARATOR = /t|\s/i;
function getDateTime(strictTimeZone?: boolean): (str: string) => boolean {
  const time = getTime(strictTimeZone);

  return function date_time(str: string): boolean {
    // http://tools.ietf.org/html/rfc3339#section-5.6
    const dateTime: string[] = str.split(DATE_TIME_SEPARATOR);
    return dateTime.length === 2 && date(dateTime[0]) && time(dateTime[1]);
  };
}

const NOT_URI_FRAGMENT = /\/|:/;
const URI =
  /^(?:[a-z][a-z0-9+\-.]*:)(?:\/?\/(?:(?:[a-z0-9\-._~!$&'()*+,;=:]|%[0-9a-f]{2})*@)?(?:\[(?:(?:(?:(?:[0-9a-f]{1,4}:){6}|::(?:[0-9a-f]{1,4}:){5}|(?:[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){4}|(?:(?:[0-9a-f]{1,4}:){0,1}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){3}|(?:(?:[0-9a-f]{1,4}:){0,2}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){2}|(?:(?:[0-9a-f]{1,4}:){0,3}[0-9a-f]{1,4})?::[0-9a-f]{1,4}:|(?:(?:[0-9a-f]{1,4}:){0,4}[0-9a-f]{1,4})?::)(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?))|(?:(?:[0-9a-f]{1,4}:){0,5}[0-9a-f]{1,4})?::[0-9a-f]{1,4}|(?:(?:[0-9a-f]{1,4}:){0,6}[0-9a-f]{1,4})?::)|[Vv][0-9a-f]+\.[a-z0-9\-._~!$&'()*+,;=:]+)\]|(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)|(?:[a-z0-9\-._~!$&'()*+,;=]|%[0-9a-f]{2})*)(?::\d*)?(?:\/(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})*)*|\/(?:(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})+(?:\/(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})*)*)?|(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})+(?:\/(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})*)*)(?:\?(?:[a-z0-9\-._~!$&'()*+,;=:@/?]|%[0-9a-f]{2})*)?(?:#(?:[a-z0-9\-._~!$&'()*+,;=:@/?]|%[0-9a-f]{2})*)?$/i;

function uri(str: string): boolean {
  // http://jmrware.com/articles/2009/uri_regexp/URI_regex.html + optional protocol + required "."
  return NOT_URI_FRAGMENT.test(str) && URI.test(str);
}

const BYTE =
  /^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/gm;

function byte(str: string): boolean {
  BYTE.lastIndex = 0;
  return BYTE.test(str);
}

const MIN_INT32 = -(2 ** 31);
const MAX_INT32 = 2 ** 31 - 1;

function validateInt32(value: number): boolean {
  return Number.isInteger(value) && value <= MAX_INT32 && value >= MIN_INT32;
}

function validateInt64(value: number): boolean {
  // JSON and javascript max Int is 2**53, so any int that passes isInteger is valid for Int64
  return Number.isInteger(value);
}

function validateNumber(): boolean {
  return true;
}

const Z_ANCHOR = /[^\\]\\Z/;
function regex(str: string): boolean {
  if (Z_ANCHOR.test(str)) return false;
  try {
    new RegExp(str);
    return true;
  } catch (e) {
    return false;
  }
}