/* eslint-disable no-useless-escape */
import { I18nService } from "../abstractions/i18n.service";

import * as tldjs from "tldjs";

const nodeURL = typeof window === "undefined" ? require("url") : null;

export class Utils {
  static inited = false;
  static isNode = false;
  static isBrowser = true;
  static isMobileBrowser = false;
  static isAppleMobileBrowser = false;
  static global: any = null;
  static tldEndingRegex =
    /.*\.(com|net|org|edu|uk|gov|ca|de|jp|fr|au|ru|ch|io|es|us|co|xyz|info|ly|mil)$/;
  // Transpiled version of /\p{Emoji_Presentation}/gu using https://mothereff.in/regexpu. Used for compatability in older browsers.
  static regexpEmojiPresentation =
    /(?:[\u231A\u231B\u23E9-\u23EC\u23F0\u23F3\u25FD\u25FE\u2614\u2615\u2648-\u2653\u267F\u2693\u26A1\u26AA\u26AB\u26BD\u26BE\u26C4\u26C5\u26CE\u26D4\u26EA\u26F2\u26F3\u26F5\u26FA\u26FD\u2705\u270A\u270B\u2728\u274C\u274E\u2753-\u2755\u2757\u2795-\u2797\u27B0\u27BF\u2B1B\u2B1C\u2B50\u2B55]|\uD83C[\uDC04\uDCCF\uDD8E\uDD91-\uDD9A\uDDE6-\uDDFF\uDE01\uDE1A\uDE2F\uDE32-\uDE36\uDE38-\uDE3A\uDE50\uDE51\uDF00-\uDF20\uDF2D-\uDF35\uDF37-\uDF7C\uDF7E-\uDF93\uDFA0-\uDFCA\uDFCF-\uDFD3\uDFE0-\uDFF0\uDFF4\uDFF8-\uDFFF]|\uD83D[\uDC00-\uDC3E\uDC40\uDC42-\uDCFC\uDCFF-\uDD3D\uDD4B-\uDD4E\uDD50-\uDD67\uDD7A\uDD95\uDD96\uDDA4\uDDFB-\uDE4F\uDE80-\uDEC5\uDECC\uDED0-\uDED2\uDED5-\uDED7\uDEEB\uDEEC\uDEF4-\uDEFC\uDFE0-\uDFEB]|\uD83E[\uDD0C-\uDD3A\uDD3C-\uDD45\uDD47-\uDD78\uDD7A-\uDDCB\uDDCD-\uDDFF\uDE70-\uDE74\uDE78-\uDE7A\uDE80-\uDE86\uDE90-\uDEA8\uDEB0-\uDEB6\uDEC0-\uDEC2\uDED0-\uDED6])/g;

  static init() {
    if (Utils.inited) {
      return;
    }

    Utils.inited = true;
    Utils.isNode =
      typeof process !== "undefined" &&
      (process as any).release != null &&
      (process as any).release.name === "node";
    Utils.isBrowser = typeof window !== "undefined";
    Utils.isMobileBrowser = Utils.isBrowser && this.isMobile(window);
    Utils.isAppleMobileBrowser = Utils.isBrowser && this.isAppleMobile(window);
    Utils.global = Utils.isNode && !Utils.isBrowser ? global : window;
  }

  static fromB64ToArray(str: string): Uint8Array {
    if (Utils.isNode) {
      return new Uint8Array(Buffer.from(str, "base64"));
    } else {
      const binaryString = window.atob(str);
      const bytes = new Uint8Array(binaryString.length);
      for (let i = 0; i < binaryString.length; i++) {
        bytes[i] = binaryString.charCodeAt(i);
      }
      return bytes;
    }
  }

  static fromUrlB64ToArray(str: string): Uint8Array {
    return Utils.fromB64ToArray(Utils.fromUrlB64ToB64(str));
  }

  static fromHexToArray(str: string): Uint8Array {
    if (Utils.isNode) {
      return new Uint8Array(Buffer.from(str, "hex"));
    } else {
      const bytes = new Uint8Array(str.length / 2);
      for (let i = 0; i < str.length; i += 2) {
        bytes[i / 2] = parseInt(str.substr(i, 2), 16);
      }
      return bytes;
    }
  }

  static fromUtf8ToArray(str: string): Uint8Array {
    if (Utils.isNode) {
      return new Uint8Array(Buffer.from(str, "utf8"));
    } else {
      const strUtf8 = unescape(encodeURIComponent(str));
      const arr = new Uint8Array(strUtf8.length);
      for (let i = 0; i < strUtf8.length; i++) {
        arr[i] = strUtf8.charCodeAt(i);
      }
      return arr;
    }
  }

  static fromByteStringToArray(str: string): Uint8Array {
    const arr = new Uint8Array(str.length);
    for (let i = 0; i < str.length; i++) {
      arr[i] = str.charCodeAt(i);
    }
    return arr;
  }

  static fromBufferToB64(buffer: ArrayBuffer): string {
    if (Utils.isNode) {
      return Buffer.from(buffer).toString("base64");
    } else {
      let binary = "";
      const bytes = new Uint8Array(buffer);
      for (let i = 0; i < bytes.byteLength; i++) {
        binary += String.fromCharCode(bytes[i]);
      }
      return window.btoa(binary);
    }
  }

  static fromBufferToUrlB64(buffer: ArrayBuffer): string {
    return Utils.fromB64toUrlB64(Utils.fromBufferToB64(buffer));
  }

  static fromB64toUrlB64(b64Str: string) {
    return b64Str.replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "");
  }

  static fromBufferToUtf8(buffer: ArrayBuffer): string {
    if (Utils.isNode) {
      return Buffer.from(buffer).toString("utf8");
    } else {
      const bytes = new Uint8Array(buffer);
      const encodedString = String.fromCharCode.apply(null, bytes);
      return decodeURIComponent(escape(encodedString));
    }
  }

  static fromBufferToByteString(buffer: ArrayBuffer): string {
    return String.fromCharCode.apply(null, new Uint8Array(buffer));
  }

  // ref: https://stackoverflow.com/a/40031979/1090359
  static fromBufferToHex(buffer: ArrayBuffer): string {
    if (Utils.isNode) {
      return Buffer.from(buffer).toString("hex");
    } else {
      const bytes = new Uint8Array(buffer);
      return Array.prototype.map
        .call(bytes, (x: number) => ("00" + x.toString(16)).slice(-2))
        .join("");
    }
  }

  static fromUrlB64ToB64(urlB64Str: string): string {
    let output = urlB64Str.replace(/-/g, "+").replace(/_/g, "/");
    switch (output.length % 4) {
      case 0:
        break;
      case 2:
        output += "==";
        break;
      case 3:
        output += "=";
        break;
      default:
        throw new Error("Illegal base64url string!");
    }

    return output;
  }

  static fromUrlB64ToUtf8(urlB64Str: string): string {
    return Utils.fromB64ToUtf8(Utils.fromUrlB64ToB64(urlB64Str));
  }

  static fromUtf8ToB64(utfStr: string): string {
    if (Utils.isNode) {
      return Buffer.from(utfStr, "utf8").toString("base64");
    } else {
      return decodeURIComponent(escape(window.btoa(utfStr)));
    }
  }

  static fromUtf8ToUrlB64(utfStr: string): string {
    return Utils.fromBufferToUrlB64(Utils.fromUtf8ToArray(utfStr));
  }

  static fromB64ToUtf8(b64Str: string): string {
    if (Utils.isNode) {
      return Buffer.from(b64Str, "base64").toString("utf8");
    } else {
      return decodeURIComponent(escape(window.atob(b64Str)));
    }
  }

  // ref: http://stackoverflow.com/a/2117523/1090359
  static newGuid(): string {
    return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
      const r = (Math.random() * 16) | 0;
      const v = c === "x" ? r : (r & 0x3) | 0x8;
      return v.toString(16);
    });
  }

  static isGuid(id: string) {
    return RegExp(
      /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/,
      "i",
    ).test(id);
  }

  static getHostname(uriString: string): string {
    const url = Utils.getUrl(uriString);
    try {
      return url != null && url.hostname !== "" ? url.hostname : null;
    } catch {
      return null;
    }
  }

  static getHost(uriString: string): string {
    const url = Utils.getUrl(uriString);
    try {
      return url != null && url.host !== "" ? url.host : null;
    } catch {
      return null;
    }
  }

  static getDomain(uriString: string): string {
    if (uriString == null) {
      return null;
    }

    uriString = uriString.trim();
    if (uriString === "") {
      return null;
    }

    if (uriString.startsWith("data:")) {
      return null;
    }

    let httpUrl = uriString.startsWith("http://") || uriString.startsWith("https://");
    if (
      !httpUrl &&
      uriString.indexOf("://") < 0 &&
      Utils.tldEndingRegex.test(uriString) &&
      uriString.indexOf("@") < 0
    ) {
      uriString = "http://" + uriString;
      httpUrl = true;
    }

    if (httpUrl) {
      try {
        const url = Utils.getUrlObject(uriString);
        const validHostname = tldjs?.isValid != null ? tldjs.isValid(url.hostname) : true;
        if (!validHostname) {
          return null;
        }

        if (url.hostname === "localhost" || Utils.validIpAddress(url.hostname)) {
          return url.hostname;
        }

        const urlDomain =
          tldjs != null && tldjs.getDomain != null ? tldjs.getDomain(url.hostname) : null;
        return urlDomain != null ? urlDomain : url.hostname;
      } catch (e) {
        // Invalid domain, try another approach below.
      }
    }

    try {
      const domain = tldjs != null && tldjs.getDomain != null ? tldjs.getDomain(uriString) : null;

      if (domain != null) {
        return domain;
      }
    } catch {
      return null;
    }

    return null;
  }

  static getQueryParams(uriString: string): Map<string, string> {
    const url = Utils.getUrl(uriString);
    if (url == null || url.search == null || url.search === "") {
      return null;
    }
    const map = new Map<string, string>();
    const pairs = (url.search[0] === "?" ? url.search.substr(1) : url.search).split("&");
    pairs.forEach((pair) => {
      const parts = pair.split("=");
      if (parts.length < 1) {
        return;
      }
      map.set(
        decodeURIComponent(parts[0]).toLowerCase(),
        parts[1] == null ? "" : decodeURIComponent(parts[1]),
      );
    });
    return map;
  }

  static getSortFunction(i18nService: I18nService, prop: string) {
    return (a: any, b: any) => {
      if (a[prop] == null && b[prop] != null) {
        return -1;
      }
      if (a[prop] != null && b[prop] == null) {
        return 1;
      }
      if (a[prop] == null && b[prop] == null) {
        return 0;
      }

      return i18nService.collator
        ? i18nService.collator.compare(a[prop], b[prop])
        : a[prop].localeCompare(b[prop]);
    };
  }

  static isNullOrWhitespace(str: string): boolean {
    return str == null || typeof str !== "string" || str.trim() === "";
  }

  static isNullOrEmpty(str: string): boolean {
    return str == null || typeof str !== "string" || str == "";
  }

  static nameOf<T>(name: string & keyof T) {
    return name;
  }

  static assign<T>(target: T, source: Partial<T>): T {
    return Object.assign(target, source);
  }

  static iterateEnum<O extends object, K extends keyof O = keyof O>(obj: O) {
    return (Object.keys(obj).filter((k) => Number.isNaN(+k)) as K[]).map((k) => obj[k]);
  }

  static getUrl(uriString: string): URL {
    if (uriString == null) {
      return null;
    }

    uriString = uriString.trim();
    if (uriString === "") {
      return null;
    }

    let url = Utils.getUrlObject(uriString);
    if (url == null) {
      const hasHttpProtocol =
        uriString.indexOf("http://") === 0 || uriString.indexOf("https://") === 0;
      if (!hasHttpProtocol && uriString.indexOf(".") > -1) {
        url = Utils.getUrlObject("http://" + uriString);
      }
    }
    return url;
  }

  static camelToPascalCase(s: string) {
    return s.charAt(0).toUpperCase() + s.slice(1);
  }

  private static validIpAddress(ipString: string): boolean {
    const ipRegex =
      /^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
    return ipRegex.test(ipString);
  }

  private static isMobile(win: Window) {
    let mobile = false;
    ((a) => {
      if (
        /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(
          a,
        ) ||
        /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(
          a.substr(0, 4),
        )
      ) {
        mobile = true;
      }
    })(win.navigator.userAgent || win.navigator.vendor || (win as any).opera);
    return mobile || win.navigator.userAgent.match(/iPad/i) != null;
  }

  private static isAppleMobile(win: Window) {
    return (
      win.navigator.userAgent.match(/iPhone/i) != null ||
      win.navigator.userAgent.match(/iPad/i) != null
    );
  }

  private static getUrlObject(uriString: string): URL {
    try {
      if (nodeURL != null) {
        return new nodeURL.URL(uriString);
      } else if (typeof URL === "function") {
        return new URL(uriString);
      } else if (window != null) {
        const hasProtocol = uriString.indexOf("://") > -1;
        if (!hasProtocol && uriString.indexOf(".") > -1) {
          uriString = "http://" + uriString;
        } else if (!hasProtocol) {
          return null;
        }
        const anchor = window.document.createElement("a");
        anchor.href = uriString;
        return anchor as any;
      }
    } catch (e) {
      // Ignore error
    }

    return null;
  }
}

Utils.init();