//////////////////////////////////////////////////////////////////////
// FB Connect
function fbConnectSteps (already_logged_into_facebook) {
    FB.ensureInit(function() {
        FB.Facebook.get_sessionState().waitUntilReady(function(session) {
            var is_now_logged_into_facebook = session ? true : false;

            // if the new state is the same as the old (i.e., nothing changed)
            // then do nothing
            if (is_now_logged_into_facebook == already_logged_into_facebook) {
                return;
            }

            light_box();

            // otherwise, refresh to pick up the state change
            var opt = {
                method: 'get',
                onSuccess: fbConnectStepsResult
            }

            new Ajax.Request('fb_connect?step=2', opt);
        });
    });

}

function fbConnectStepsResult(msg) {
    var myJSON = eval('(' + msg.responseText + ')');

    if (myJSON.result == '1') {

        if(myJSON.loggedInUser) {
            fbSignupProcessResult(msg);
        } else {
            if ($('fb_connect_window') == null) {
                new Insertion.Bottom(document.body, '<div id="fb_connect_window" style="width:500px;position:absolute;z-index: 200; left: 30%; top: 200px;"></div>');

            }

            $('fb_connect_window').innerHTML = myJSON.form;
            FB.init("", "/fb_connect");
            $('fb_connect_window').show();
        }
    } else {

        // permission dialog
        FB.ensureInit(function() {
            FB.Connect.showPermissionDialog(myJSON.required_perms_string, function(perms){

                var opt = {
                    method: 'get',
                    onSuccess: fbConnectStepsResult
                }
                // publish_stream is optional so if user doesn't allow it we log the user in anyway
                if (myJSON.required_perms_string == 'publish_stream') {
                    new Ajax.Request('fb_connect?step=2&login_user=1', opt);
                } else {
                    new Ajax.Request('fb_connect?step=2', opt);
                }
            });
        });
    }
}

function fbConnectFormClose() {
    if ($('fb_connect_window') != null) {
        $('fb_connect_window').hide();
    }
    if ($('backgroundOverlay') != null) {
        $('backgroundOverlay').hide();
    }
}

function fbTextEnabled() {
    controlEnable = $("have_mineeds_account").checked;
    if(controlEnable) {
        $("fb_username_or_email").disabled = false;
        $("fb_username_or_email").style.backgroundColor = "#ffffff";
        $("fb_username_or_email").style.color = "#000000";
        $("fb_password").disabled = false;
        $("fb_password").style.backgroundColor = "#ffffff";
        $("fb_password").style.color = "#000000";
        $("fb_username_label").style.color = "";
        $("fb_password_label").style.color = "";

        $("fb_email").disabled = true;
        $("fb_email").style.backgroundColor = "#eeeeee";
        $("fb_email").style.color = "#777777";
        $("fb_email_label").style.color = "#cccccc";
    } else {
        $("fb_username_or_email").disabled = true;
        $("fb_username_or_email").style.backgroundColor = "#eeeeee";
        $("fb_username_or_email").style.color = "#777777";
        $("fb_password").disabled = true;
        $("fb_password").style.backgroundColor = "#eeeeee";
        $("fb_password").style.color = "#777777";
        $("fb_username_label").style.color = "#cccccc";
        $("fb_password_label").style.color = "#cccccc";

        $("fb_email").disabled = false;
        $("fb_email").style.backgroundColor = "#ffffff";
        $("fb_email").style.color = "#000000";
        $("fb_email_label").style.color = "";
    }
}

var fbEmailPermFlag = false;
function fbLastStep(required_perms_string) {
    fb_loading_process(1);
    if (required_perms_string) {
        if(!fbEmailPermFlag) {
            FB.ensureInit(function() {
                FB.Connect.showPermissionDialog(required_perms_string, fbDialogResult);
            });
        } else {
            fbDialogResult();
        }
    } else {
        fbDialogResult();
    }
}

function fbLastStepResult(msg) {
    var myJSON = eval('(' + msg.responseText + ')');
    if (myJSON.result == '1') {
        fbSignupProcess();
    } else {
        if(myJSON.required_perms_string) {
            fbEmailPermFlag = false;
            $('fb_connect_error_msg').innerHTML = '<ul><li>'+myJSON.message+' <a href="javascript:;" onclick="fbLastStep(\''+myJSON.required_perms_string+'\');"><u>Try Again</u></a></li></ul>';
        } else {
            $('fb_connect_error_msg').innerHTML = '<ul><li>'+myJSON.message+'</li></ul>';
        }

        if(myJSON.extra == 'exists_email') {
            $("have_mineeds_account").checked = true;
            $("fb_username_or_email").value = $("fb_email").value;
            $("fb_email").value = "";
            fbTextEnabled();
        }

        $('fb_connect_error_msg').style.display = '';
        fb_loading_process(0);
    }

}

function fbDialogResult() {
    fbEmailPermFlag = true;
    var opt = {
        method: 'post',
        onSuccess: fbLastStepResult ,
        postBody: $('fb_connect_form').serialize()
    }

    new Ajax.Request('fb_connect?step=3', opt);
}

function fbSignupProcess() {
    var opt = {
        method: 'get',
        onSuccess: fbSignupProcessResult
    }

    new Ajax.Request('fb_connect?step=4', opt);
}

function fbSignupProcessResult(msg) {
    var myJSON = eval('(' + msg.responseText + ')');
    if (myJSON.result == '1') {
        //window.location.href='/my_profile';
        window.location.reload();
    }
}

function fb_loading_process(enabled) {
    if(enabled) {
        $('fb_login_btn').hide();
        $('fb_loading_img').show();
    } else {
        $('fb_login_btn').show();
        $('fb_loading_img').hide();
    }
}

function facebook_publish_feed_story(tempalteData) {

    tempalteData = eval('(' + tempalteData + ')');
    FB.ensureInit(function() {
        FB.Connect.streamPublish('', tempalteData);
    });

    if($('feed_loading')) {
        $('feed_loading').style.visibility = "hidden";
    }
}