package eu.eudat.security;

import eu.eudat.exceptions.security.NonValidTokenException;
import eu.eudat.exceptions.security.UnauthorisedException;
import eu.eudat.models.login.LoginInfo;
import eu.eudat.models.security.Principal;
import eu.eudat.security.validators.TokenValidatorFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.security.GeneralSecurityException;

@Component
public class CustomAuthenticationProvider {


    @Autowired
    private TokenValidatorFactory tokenValidatorFactory;

    public Principal authenticate(LoginInfo credentials) throws GeneralSecurityException {
        String token = credentials.getTicket();
        try {
            Principal principal = this.tokenValidatorFactory.getProvider(credentials.getProvider()).validateToken(credentials);
            return principal;
        } catch (NonValidTokenException e) {
            e.printStackTrace();
            System.out.println("Could not validate a user by his token! Reason: " + e.getMessage());
            throw new UnauthorisedException("Token validation failed - Not a valid token");
        } catch (IOException e) {
            e.printStackTrace();
            throw new UnauthorisedException("IO Exeption");
        }
    }
}