import { RegExpUtility } from "../../../browser/text/RegExpUtitlity";
import { CryptIO } from "../../crypt/CryptIO";
import { RJLog } from "../../log/RJLog";
import { RequestHandler, RequestType } from "../RequestHandler";
import { FastifyRequest, FastifyReply } from 'fastify';
import { VariableReplacer, Variables } from "../../../browser/text/replacing/VariableReplacer";
import { ConfirmSignUpHandler } from "./confirm-signup";
import { Session } from "../Session";
import { UserLoginData } from "../UserData";
import { ISOTimeStamp } from "../../../browser/date/ISOTimeStamp";
import { Arrays } from "../../../browser/tools/Arrays";

export class LoginHandler extends RequestHandler
{
  static url = "/login";
  constructor(){ super( RequestType.POST, LoginHandler.url ); }

  async _handle( request:FastifyRequest, reply:FastifyReply )
  { 
    let requestBody = JSON.parse( request.body as string );
    let { email, password, userName } = requestBody as { email: string; password: string; userName: string };

    if ( ! email || ! password )
    { 
      return this.sendError( "Missing email or password:" + `"${requestBody}"` );
    }

    let loginToken = await this.userDB.login( email, password, this.ip );

    if ( ! loginToken )
    {
      return this.sendError( "Login failed" );
    }
    
    let user = await this.userDB.byEmail( email );
    
    let loginData = new UserLoginData();
    loginData.timeStamp = ISOTimeStamp.now();
    loginData.location = await this.getLocation();
    loginData.userAgent = this.userAgent;

    user.lastLogins = user.lastLogins || [];
    user.lastLogins.push( loginData );
    
    Arrays.shiftToSize( user.lastLogins, this._ums._settings.maxLogins );
    

    let session = new Session();
    session.token = loginToken.id;
    session.userID = user.id;

    this._ums._sessions.set( session.token, session );

    await this.userDB.save();

    
    return this.sendDataInfo( "Login successfull", { token: session.token } );
  }


}