package eu.eudat.controllers;

import eu.eudat.exceptions.security.UnauthorisedException;
import eu.eudat.managers.UserManager;
import eu.eudat.models.helpers.responses.ResponseItem;
import eu.eudat.models.login.Credentials;
import eu.eudat.models.login.LoginInfo;
import eu.eudat.models.security.Principal;
import eu.eudat.security.CustomAuthenticationProvider;
import eu.eudat.security.validators.b2access.B2AccessTokenValidator;
import eu.eudat.security.validators.b2access.helpers.B2AccessRequest;
import eu.eudat.security.validators.b2access.helpers.B2AccessResponseToken;
import eu.eudat.security.validators.twitter.TwitterTokenValidator;
import eu.eudat.services.operations.AuthenticationServiceImpl;
import eu.eudat.types.ApiMessageCode;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.social.oauth1.OAuthToken;
import org.springframework.web.bind.annotation.*;

import javax.transaction.Transactional;


@RestController
@CrossOrigin
@RequestMapping(value = "api/auth")
public class Login {

    private CustomAuthenticationProvider customAuthenticationProvider;

    private AuthenticationServiceImpl authenticationServiceImpl;

    private TwitterTokenValidator twitterTokenValidator;

    private B2AccessTokenValidator b2AccessTokenValidator;

    @Autowired
    public Login(CustomAuthenticationProvider customAuthenticationProvider, AuthenticationServiceImpl authenticationServiceImpl, TwitterTokenValidator twitterTokenValidator, B2AccessTokenValidator b2AccessTokenValidator) {
        this.customAuthenticationProvider = customAuthenticationProvider;
        this.authenticationServiceImpl = authenticationServiceImpl;
        this.twitterTokenValidator = twitterTokenValidator;
        this.b2AccessTokenValidator = b2AccessTokenValidator;
    }

    @Transactional
    @RequestMapping(method = RequestMethod.POST, value = {"/externallogin"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<Principal>> externallogin(@RequestBody LoginInfo credentials) {
        try {
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<Principal>().payload(customAuthenticationProvider.authenticate(credentials)).status(ApiMessageCode.SUCCESS_MESSAGE));
        } catch (UnauthorisedException ex) {
            throw ex;
        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<Principal>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @Transactional
    @RequestMapping(method = RequestMethod.POST, value = {"/nativelogin"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<Principal>> nativelogin(@RequestBody Credentials credentials) {
        try {
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<Principal>().payload(UserManager.authenticate(this.authenticationServiceImpl, credentials)).status(ApiMessageCode.SUCCESS_MESSAGE));
        } catch (UnauthorisedException ex) {
            throw ex;
        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<Principal>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @RequestMapping(method = RequestMethod.GET, value = {"/twitterRequestToken"}, produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<OAuthToken>> twitterRequestToken() {
        try {
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<OAuthToken>().payload(this.twitterTokenValidator.getRequestToken()).status(ApiMessageCode.NO_MESSAGE));
        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<OAuthToken>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/b2AccessRequestToken"}, produces = "application/json", consumes = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<B2AccessResponseToken>> b2AccessRequestToken(@RequestBody B2AccessRequest b2AccessRequest) {
        try {
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<B2AccessResponseToken>().payload(this.b2AccessTokenValidator.getAccessToken(b2AccessRequest)).status(ApiMessageCode.NO_MESSAGE));
        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<B2AccessResponseToken>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @RequestMapping(method = RequestMethod.POST, value = {"/me"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<Principal>> authMe(Principal principal) {
        try {
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<Principal>().payload(this.authenticationServiceImpl.Touch(principal.getToken())).status(ApiMessageCode.NO_MESSAGE));

        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<Principal>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }

    @Transactional
    @RequestMapping(method = RequestMethod.POST, value = {"/logout"}, consumes = "application/json", produces = "application/json")
    public @ResponseBody
    ResponseEntity<ResponseItem<Principal>> logout(Principal principal) {
        try {
            this.authenticationServiceImpl.Logout(principal.getToken());
            return ResponseEntity.status(HttpStatus.OK).body(new ResponseItem<Principal>().status(ApiMessageCode.NO_MESSAGE));

        } catch (Exception ex) {
            ex.printStackTrace();
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(new ResponseItem<Principal>().status(ApiMessageCode.DEFAULT_ERROR_MESSAGE).message(ex.getMessage()));
        }
    }
}