import {StringUtils} from '../../utils/string-utils.class';

export class User {
    email:string;
    firstname: string;
    lastname: string;
    id: string;
    fullname: string;
    expirationDate: number;
    role:string[];
    jwt:string;

}

export class Session{
  // public static setUser(user:User): User {
  //
  //     localStorage.setItem("user", JSON.stringify(user));
  //
  //     return user;
  // }
  public static removeUser() {
    if(Session.isLoggedIn()){
        // localStorage.removeItem("user");
        COOKIE.deleteCookie(COOKIE.cookieName_id)
        COOKIE.deleteCookie(COOKIE.cookieName_u);
        COOKIE.deleteCookie("SESSION");
    }
  }
  public static getUser():User {
    // if(Session.isLoggedIn()){
    //     return JSON.parse(localStorage.getItem("user"));
    // }else{
    //   return null;
    // }
    return this.getUserFromCookie();
  }
  // public static isLoggedIn(): boolean {
  //     var loggedIn:boolean = false;
  //     var user:User = null;
  //     var cookie= COOKIE.getCookie(COOKIE.cookieName_u);
  //   if( typeof localStorage !== 'undefined') {
  //       if(localStorage.getItem("user") || (cookie != null && cookie != "")) {
  //         user = JSON.parse(localStorage.getItem("user"));
  //           if(user && (user.fullname != null || user.lastname !=null || user.firstname !=null)){
  //             loggedIn = true;
  //           }else if(cookie != null && this.getUserFromCookie()!= null){
  //              loggedIn = true
  //           }else{
  //             loggedIn = false;
  //           }
  //         }else{
  //           if(cookie != null && this.getUserFromCookie()!= null){
  //              loggedIn = true
  //           }else{
  //             loggedIn = false;
  //           }
  //
  //         }
  //     }else{
  //       loggedIn = false;
  //     }
  //     return loggedIn;
  // }
  public static isLoggedIn(): boolean {
      var loggedIn:boolean = false;
      var user:User = null;
      var cookie= COOKIE.getCookie(COOKIE.cookieName_u);
      if(cookie == null ||cookie == ""){
        return false;
      }else{
          var user:User = this.getUserFromCookie();
        if(user ==null){
          return false;
        }
        return true;
      }

  }
  public static getUserFromCookie():User{
    var cookie= COOKIE.getCookie(COOKIE.cookieName_u);
    if(cookie != null){
      var user:User = MyJWT.parseUserInfo(cookie);
      //  if( typeof localStorage !== 'undefined') {
        //  localStorage.setItem("user", JSON.stringify(user));
         if(user && user.email){
          //  COOKIE.deleteCookie(COOKIE.cookieName_u); // delete cookie to avoid transfer through requests
           return user;
         }else{
           return null;
         }
      //  }else{
      //    return null;
      //  }
    }else{
      return null;
    }
  }
  public static getUserJwt():string {
      var user:User = this.getUserFromCookie();
      if(user!=null){
        return user.jwt;
      }
      return null;
      // if(Session.isLoggedIn()){
      //     return Session.getUser().jwt;
      // }else{
      //   return null;
      // }

  }
  public static getUserEmail():string {
    var user:User = this.getUserFromCookie();
    if(user!=null){
      return user.email;
    }
    return null;
      // if(Session.isLoggedIn()){
      //     return Session.getUser().email;
      // }else{
      //   return null;
      // }

  }

  public static setReloadUrl(host:string,path:string, params:string) {
    var URL = {};
    URL["host"]=host;
    URL["path"]=path;
    URL["params"]=params;
    COOKIE.setCookie("reloadURL", JSON.stringify(URL), -1);

  }
  public static getReloadUrl(plainText:boolean =false) {
    var URL = COOKIE.getCookie("reloadURL");
    URL = JSON.parse(URL);
    return URL;

  }
  public static getParamsObj(params:string) {

       var object = null;
      if(params.split("&").length > 0){
        object = {};
      }
      for(var i=0; i<params.split("&").length; i++){
        object[(params.split("&")[i]).split("=")[0]] = (params.split("&")[i]).split("=")[1];
      }

    return object;

  }
 
  public static isClaimsCurator():boolean {
      var isAuthorized = false;
      var user:User = this.getUserFromCookie();
      if(user!=null){
        return false;
      }


        var claimRoles = ["urn:geant:openaire.eu:group:Curator+-+Claim#aai.openaire.eu"]
        for (var i = 0; i < claimRoles.length; i++) {
            if ((user.role).indexOf(claimRoles[i]) > -1) {
                isAuthorized = true;
                break;
            }
        }
          return (isAuthorized);

  }
  public static isCommunityCurator():boolean {
      var isAuthorized = false;
      if(Session.isLoggedIn()){
        var roles = ["urn:geant:openaire.eu:group:Curator+-+Community#aai.openaire.eu"]
        for (var i = 0; i < roles.length; i++) {
            if ((Session.getUser().role).indexOf(roles[i]) > -1) {
                isAuthorized = true;
                break;
            }
        }
          return (isAuthorized);
      }
      return (isAuthorized);
  }
  public static isPortalAdministrator():boolean {
      var isAuthorized = false;
      if(Session.isLoggedIn()){
        var roles = ["urn:geant:openaire.eu:group:Portal+Administrator#aai.openaire.eu"]
        for (var i = 0; i < roles.length; i++) {
            if ((Session.getUser().role).indexOf(roles[i]) > -1) {
                isAuthorized = true;
                break;
            }
        }
          // console.log("Is admin:"+ isAdmin)
          return (isAuthorized);
      }
      // console.log("Is admin:"+ isAdmin)
      return (isAuthorized);
  }
  public static isRegisteredUser():boolean {
      var isRegisteredUser = false;
      if(Session.isLoggedIn()){
        var claimRoles = ["urn:geant:openaire.eu:group:Registered+User#aai.openaire.eu"];
        for (var i = 0; i < claimRoles.length; i++) {
            if ((Session.getUser().role).indexOf(claimRoles[i]) > -1) {
                isRegisteredUser = true;
                break;
            }
        }
          // console.log("Is isRegisteredUser:"+ isRegisteredUser)
          return (isRegisteredUser);
      }
      // console.log("Is isRegisteredUser:"+ isRegisteredUser)
      return (isRegisteredUser);
  }
  public static isUserValid() {
    // if(Session.isLoggedIn()){
        var user:User = Session.getUser();
        if(user!=null){
          // var expires = user.expirationDate;
          // var now = new Date().getTime() / 1000;
          // console.log(" is still valid ? "+(now +0 < expires)  +" Remaining:"+ (expires - (now+0))+ " now is:"+now + "expires at:"+expires);
          // return now +0 < expires;
          return true;
        }
    return false;
  }
  public static isValidAndRemove() {
    // if(Session.isLoggedIn()){
        if(!Session.isUserValid()){
          Session.removeUser();
          return false;
        }else{
          return true;
        }
    // }else{
    //   return false;
    // }
  }

}
export  class MyJWT{
  private static validateJWTFormat(data){
    if(data != null && (data.indexOf(".") !=-1 && data.split('.').length == 3)){
      return true;
    }
    return false;
  }
  private static getPayload(data){
    var payload = data.split('.')[1];
    return StringUtils.b64DecodeUnicode(payload);
  }
  public static parseUserInfo(data: any): User {
      if(this.validateJWTFormat(data)){
        var info = JSON.parse(this.getPayload(data));
      }else{
        return null;
      }
      var user: User = new User();
      user.id = (info.sub && info.sub.indexOf('@'))?info.sub.substring(0,info.sub.indexOf('@')):info.sub;

      user.firstname = (StringUtils.URIDecode((info.firstname && info.firstname!="")?info.firstname:"")).replace("+"," ");
      user.lastname = (StringUtils.URIDecode((info.lastname && info.lastname!="")?info.lastname:"")).replace("+"," ");
      user.email = info.email;
      // user.id = info.userId;
      user.fullname = (StringUtils.URIDecode((info.fullname && info.fullname!="")?info.fullname:"")).replace("+"," ");
      if(user.fullname == ""){
        if(user.firstname != ""){
          user.fullname += user.firstname;
        }
        if(user.lastname !=""){
          user.fullname += user.lastname;
        }
        if(user.fullname == ""){ //it is still empty set a default
          user.fullname = "Anonymous user";
        }
      }
      if(info.role && info.role != ""){
        user.role =JSON.parse( StringUtils.URIDecode(info.role));
      }else{
        user.role =[];
      }

      // console.log("User Role is:");
      // console.log(user.role)
      user.jwt = data;
      user.expirationDate = info.exp;
      // localStorage.setItem("user", JSON.stringify(user));
      // console.log(user)
      return user;
  }

}
  export class COOKIE{
    public static cookieName_u:string="XCsrfToken";
    public static cookieName_id:string="AccessToken";

    public static  getCookie(name: string) : string {
      if(typeof document == 'undefined'){
        return null;
      }
      let ca: Array<string> = document.cookie.split(';');
      let caLen: number = ca.length;
      let cookieName = `${name}=`;
      let c: string;

      for (let i: number = 0; i < caLen; i += 1) {
          c = ca[i].replace(/^\s+/g, '');
          if (c.indexOf(cookieName) == 0) {
              return c.substring(cookieName.length, c.length);
          }
      }
      return null;
  }
  public static deleteCookie(name) {
      this.setCookie(name, '', -1);
  }
  public static setCookie(name: string, value: string, expireDays: number, path: string = '/') {
      let d:Date = new Date();
      d.setTime(d.getTime() + expireDays * 24 * 60 * 60 * 1000);
      let expires:string = `expires=${d.toUTCString()}`;
      // let cpath:string = path ? `; path=${path}` : '';
      let domain = "";
      if(document.domain.indexOf(".di.uoa.gr")!= -1){
        domain = ".di.uoa.gr";
      }else if(document.domain.indexOf(".openaire.eu") != -1){
        domain = ".openaire.eu";
      }
      document.cookie = name+'='+value+'; path='+path+'; domain='+domain+';';
  }
}