package glacier.picasa;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.fluxtream.core.Configuration;
import org.fluxtream.core.services.GuestService;
import com.google.api.client.auth.oauth.OAuthCredentialsResponse;
import com.google.api.client.auth.oauth.OAuthHmacSigner;
import com.google.api.client.auth.oauth.OAuthParameters;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping(value = "/picasa")
public class PicasaOAuthController {

	private static final String PICASA_SCOPE = "http://picasaweb.google.com/data/";
	private static final String PICASA_TOKEN_SECRET = "picasaTokenSecret";

	@Autowired
	Configuration env;

	@Autowired
	GuestService guestService;

	private OAuthHmacSigner signer;

	@RequestMapping(value = "/token")
	public String getToken(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException {
		//String oauthCallback = env.get("homeBaseUrl") + "picasa/upgradeToken";
        //
		//GoogleOAuthGetTemporaryToken temporaryToken = new GoogleOAuthGetTemporaryToken();
		//signer = new OAuthHmacSigner();
		//signer.clientSharedSecret = getConsumerSecret();
		//temporaryToken.signer = signer;
		//temporaryToken.consumerKey = getConsumerKey();
		//temporaryToken.scope = PICASA_SCOPE;
		//temporaryToken.callback = oauthCallback;
		//OAuthCredentialsResponse tempCredentials = temporaryToken.execute();
		//signer.tokenSharedSecret = tempCredentials.tokenSecret;
		//OAuthAuthorizeTemporaryTokenUrl authorizeUrl = new OAuthAuthorizeTemporaryTokenUrl(
		//		"https://www.google.com/accounts/OAuthAuthorizeToken");
        //
		//request.getSession().setAttribute(PICASA_TOKEN_SECRET,
		//		tempCredentials.token);
        //
		//authorizeUrl.temporaryToken = tempCredentials.token;
		//String authorizationUrl = authorizeUrl.build();
        //
		//System.out.println("redirect url: " + authorizationUrl);
        //
		//return "redirect:" + authorizationUrl;
        return null;
	}

	@RequestMapping(value = "/upgradeToken")
	public String upgradeToken(HttpServletRequest request,
			HttpServletResponse response) throws IOException {
		//GoogleOAuthGetAccessToken accessToken = new GoogleOAuthGetAccessToken();
		//String tempToken = (String) request.getSession().getAttribute(
		//		PICASA_TOKEN_SECRET);
        //
		//accessToken.temporaryToken = tempToken;
		//accessToken.signer = signer;
		//accessToken.consumerKey = getConsumerKey();
		//accessToken.verifier = request.getParameter("oauth_verifier");
		//OAuthCredentialsResponse credentials = accessToken.execute();
		//signer.tokenSharedSecret = credentials.tokenSecret;
		//HttpTransport transport = GoogleTransport.create();
        //
		//createOAuthParameters(credentials)
		//		.signRequestsUsingAuthorizationHeader(transport);
        //
		//Guest guest = AuthHelper.getGuest();
        //
        //final Connector connector = Connector.getConnector("picasa");
        //final ApiKey apiKey = guestService.createApiKey(guest.getId(), connector);
        //
		//guestService().setApiKeyAttribute(apiKey, "accessToken", credentials.token);
		//guestService().setApiKeyAttribute(apiKey, "tokenSecret", credentials.tokenSecret);
        //
		//return "redirect:/app/from/"+connector.getName();
        return null;
	}

	private OAuthParameters createOAuthParameters(
			OAuthCredentialsResponse credentials) {
		OAuthParameters authorizer = new OAuthParameters();
		authorizer.consumerKey = getConsumerKey();
		authorizer.signer = signer;
		authorizer.token = credentials.token;
		return authorizer;
	}

	protected GuestService guestService() {
		return guestService;
	}

	protected String getConsumerKey() {
		return env.get("googleConsumerKey");
	}

	protected String getConsumerSecret() {
		return env.get("googleConsumerSecret");
	}

}