var access_token;

function LoadFBSDk () {

    (function (d) {
        var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
        if (d.getElementById(id)) { return; }
        js = d.createElement('script'); js.id = id; js.async = true;
        js.src = "//connect.facebook.net/el_GR/all.js";
        ref.parentNode.insertBefore(js, ref);
        
    } (document));
}

function FBinit(){
     FB.init({
        appId: '680411745315810',
        status: false, // don't get info about the current user after init
        cookie: true, // enable cookies to allow the server to access the session
        xfbml: true, // find and initialize any social plugins that have been added using XFBML
        version: 'v2.6', // determine which Graph API version is used.
        oauth: true
    });
}

function FBLogin(func_to_call, scope) {
            // https://developers.facebook.com/docs/facebook-login/permissions/v2.6
            // obs: Apps that ask for more than public_profile, email and user_friends must be reviewed by Facebook before they can be made available to the general public.
            if (typeof (scope) === "undefined") {
                scope = {
                    scope: "public_profile,email",
                    auth_type: "rerequest"
                };
            }

            func = function (response) {
                if (response.authResponse) {
                    accessToken = response.authResponse.accessToken;
                    func_to_call();
                } else {
                    console.log("User cancelled login or did not fully authorize.");
                }
            };

            FB.login(func, scope);

        }

function FBinitWillStatusandLike() {
    window.fbAsyncInit = function () {
        FB.init({
            appId: '680411745315810', // Production 
            //appId: 249589925215628, // test 
            status: true, // check login status
            cookie: true, // enable cookies to allow the server to access the session
            xfbml: true  // parse XFBML
        });

        /*
        FB.Event.subscribe('edge.create',
                    function (href, widget) {
                        //  alert('You liked the URL: ' + href);
                        // doredirect();
                        WriteLike();
                    }
                );*/
    };
}



function PostMessage(msg, msgurl) {
    $('#errmsg1').text('');
    FB.login(function (resp1) {
        if (resp1.authResponse) {
            FB.api(
            "/me/feed",
            "POST",
            {
                "message": msg,
                "link": msgurl, //lcfg.dataset[0].facebookpage
                "privacy": { "value": "SELF" }
            },
            function (response) {
                if (response /*&& !response.error*/) {
                    /* handle the result */
                    /// resfunc();
                    if (response.error) {
                        $('#errmsg1').text(response.error);
                    }
                    else {
                        alert('Έγινε το post. Δείτε το στην facebook σελίδα σας.');
                    }
                }
            }
            );
        }
    }, { scope: 'publish_actions' });

    
    
    /*
    FB.ui({
      method: 'feed',
      link: 'https://developers.facebook.com/docs/dialogs/',
      caption: 'An example caption',
    }, function(response){alert(response)});
    */


}

function PostButton() {
    PostMessage($('#postspan').text(), function () { PostDone() } );
}

function Checkin(msg, msgurl) {
    $('#errmsg1').text('');
    FB.login(function (resp1) {
        if (resp1.authResponse) {
            FB.api(
            "/me/feed",
            "POST",
            {
                "message": msg,
             //   "link": msgurl, //lcfg.dataset[0].facebookpage
                "place": '145691278971953',
                "privacy": { "value": "SELF" }
            },
            function (response) {
                if (response /*&& !response.error*/) {
                    /* handle the result */
                    /// resfunc();
                    if (response.error) {
                        $('#errmsg1').text(response.error);
                    }
                    else {
                        alert('Έγινε το checkin. Δείτε το στην facebook σελίδα σας.');
                    }
                }
            }
            );
        }
    }, { scope: 'publish_actions' });
}