package controllers;

import java.net.URLEncoder;

import play.Logger;
import play.libs.OAuth;
import play.libs.OAuth.ServiceInfo;
import play.libs.OAuth.TokenPair;
import play.libs.WS;
import play.libs.WS.HttpResponse;
import play.mvc.Controller;
import play.mvc.Scope.Params;

import models.User;

public class Application extends Controller {

    private static final ServiceInfo TWITTER = new ServiceInfo(
            "http://twitter.com/oauth/request_token",
            "http://twitter.com/oauth/access_token",
            "http://twitter.com/oauth/authorize",
            "eevIR82fiFK3e6VrGpO9rw",
            "OYCQA6fpsLiMVaxqqm1EqDjDWFmdlbkSYYcIbwICrg"
    );

    public static void index() {
        String url = "http://twitter.com/statuses/mentions.xml";
        String mentions = "";
        try {
            mentions = WS.url(url).oauth(TWITTER, getUser().getTokenPair()).get().getString();
        } catch(Exception e) {
            // User is not authentified
        }
        render(mentions);
    }

    public static void setStatus(String status) throws Exception {
        String url = "http://twitter.com/statuses/update.json?status=" + URLEncoder.encode(status, "utf-8");
        String response = WS.url(url).oauth(TWITTER, getUser().getTokenPair()).post().getString();
        request.current().contentType = "application/json";
        renderText(response);
    }

    // Twitter authentication

    public static void authenticate() {
        if (OAuth.isVerifierResponse()) {
            // We got the verifier; now get the access token, store it and back to index
            TokenPair tokens = OAuth.service(TWITTER).requestAccessToken(getUser().getTokenPair());
            getUser().setTokenPair(tokens);
            index();
        }
        OAuth twitt = OAuth.service(TWITTER);
        TokenPair tokens = twitt.requestUnauthorizedToken();
        // We received the unauthorized tokens in the OAuth object - store it before we proceed
        getUser().setTokenPair(tokens);
        redirect(twitt.redirectUrl(tokens));
    }

    private static User getUser() {
        return User.findOrCreate("guest");
    }

}