var $t100LoggedIn = false;
var $t100UserIdentityID = '';
var $fbLoggedIn = false;
var $dbFBUID = '';
var $currentFBUID = '';

function fbPublishStreamReviewProceed(ItemName, ListName, URL, Description) {
    FB.ensureInit(function() {     
        FB.Connect.streamPublish("", {'name':'I just reviewed ' + ItemName + ' in ' + ListName + '  on TheTop100.net ','href':URL,'description':Description}, null, null, null, null, true, null);
    });      
}

function fbPublishStreamReview(ItemName, ListName, URL, Description) {
  
    var callback = function() {

        FB.ensureInit(function() { 
              var api = FB.Facebook.apiClient;
              FB.Connect.requireSession(function() {
                  var session = api.get_session();
                  api.users_hasAppPermission('publish_stream',function(hasPermission) {                                                                                
                    if(!hasPermission){
                        FB.Connect.showPermissionDialog('publish_stream',function(perms) {
                               if (!perms) {
                                    fbPublishStreamReviewProceed(ItemName, ListName, URL, Description)
                               } else {
                                    fbPublishStreamReviewProceed(ItemName, ListName, URL, Description)
                               }
                         });
                                                   
                    } else {
                        fbPublishStreamReviewProceed(ItemName, ListName, URL, Description)
                    }
                 });
             });
        });      
    } 
    
    requireFacebookConnect(
        "In order to publish this review to Facebook, you need to connect with Facebook - do so now?", 
        "In order to publish this review to Facebook, you need to link your current The Top 100 alias with Facebook - do so now?", 
        "In order to publish this review to Facebook, you need to connect and link your current The Top 100 alias with Facebook - do so now?", 
        callback);
}


function requireFacebookConnect(connectmessage, linkmessage, connectandlinkmessage, callbackfunction) {

    if($t100LoggedIn) {
    
        FB.ensureInit(function() {     
       
            FB.Connect.get_status().waitUntilReady( function( status ) {
                  switch ( status ) {
                  case FB.ConnectState.connected:
                     $fbLoggedIn = true;
                     break;
                  case FB.ConnectState.appNotAuthorized:
                    $fbLoggedIn = false;
                    break;
                  case FB.ConnectState.userNotLoggedIn:
                    $fbLoggedIn = false;
                    break;
                  }
               });        

            if($fbLoggedIn) {
            
                if($dbFBUID != '') {
                    // User has FBUID in db and logged in with FB - Go ahead and perform action
                    callbackfunction();

                } else {
                    // FB LINK PROCESS            
                    if(confirm(linkmessage)) {
                        $currentFBUID = FB.Facebook.apiClient.get_session().uid;
                        $dbFBUID = $currentFBUID;
                        ajaxAction("SetCurrentUserIdentityIdFacebookUID", $currentFBUID, null, null, callbackfunction);
                    }
                }               
            
            } else {
            
                if($dbFBUID != '') {
                    // User has FBUID in db but not logged into facebook - show connect 
                    if(confirm(connectmessage)) {
                        FB.Connect.requireSession(function() {
                        callbackfunction();
                        });                    
                    }                    

                } else {
                    
                    // User doesn't have FBUID in db and not logged into facebook - show connect (and link $t100UserIdentityID)
                    if(confirm(connectandlinkmessage)) {
                        FB.Connect.requireSession(function() {
                        $currentFBUID = FB.Facebook.apiClient.get_session().uid;
                        $dbFBUID = $currentFBUID;
                        ajaxAction("SetCurrentUserIdentityIdFacebookUID", $currentFBUID, null, null, callbackfunction);
                        });
                    }
                }          
            }        
        });      
   
    }
}