package io.cobl.authentication.controller;

import io.cobl.account.service.AccountService;
import io.cobl.authentication.model.AuthenticationParams;
import io.cobl.authentication.model.AuthenticationResponse;
import io.cobl.authentication.service.TokenService;
import io.cobl.common.CoblServiceResponse;
import io.cobl.common.CoblServiceStatus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller("cobl.authenticationController")
public class AuthenticationController
{
    private static final String AUTHENTICATION_ERROR_MESSAGE = "Invalid authentication attempt.";

    @Autowired
    @Qualifier("cobl.accountService")
    private AccountService accountService;

    @Autowired
    @Qualifier("cobl.tokenService")
    private TokenService tokenService;

    @RequestMapping(value = "/authenticate", method = RequestMethod.GET, produces = "application/json")
    public
    @ResponseBody
    CoblServiceResponse<AuthenticationResponse> authenticate(final AuthenticationParams authenticationParams) throws Exception
    {
        final CoblServiceResponse<AuthenticationResponse> csr = new CoblServiceResponse<>();

        final String username = authenticationParams.getUsername();
        final String password = authenticationParams.getPassword();

        if (accountService.checkPassword(username, password))
        {
            final String token = tokenService.encodeToken(username);
            final AuthenticationResponse ar = new AuthenticationResponse();
            ar.setToken(token);
            csr.setPayload(ar);
        }
        else
        {
            csr.setStatus(CoblServiceStatus.AUTHENTICATION_FAILURE);
            csr.addMessage(AUTHENTICATION_ERROR_MESSAGE);
        }

        return csr;
    }
}