/*
 * The facebook_onload statement is printed out in the PHP. If the user's logged in
 * status has changed since the last page load, then refresh the page to pick up
 * the change.
 *
 * This helps enforce the concept of "single sign on", so that if a user is signed into
 * Facebook when they visit your site, they will be automatically logged in -
 * without any need to click the login button.
 *
 * @param already_logged_into_facebook  reports whether the server thinks the user
 *                                      is logged in, based on their cookies
 *
 */
 
var page_url = 'http://www.nurbamberg.de';
var communityname = 'nur!bamberg';
var cityname = 'Bamberg';
 
function facebook_onload() {
  // user state is either: has a session, or does not.
  // if the state has changed, detect that and reload.
  logging("facebook_onload aufgerufen.");
  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) {
            update_user_box();
            setup_form();
            fb_reparse();
            return;
          }

          // otherwise, refresh to pick up the state change
          // refresh_page();
        });
    });
}

function invoke_cancel_function()
{
	logging('invoke_cancel_function()');
	
	var myAjax = new Ajax.Request(
	'modules/facebook/ajax.php', {
	        parameters: 'cmd=skip_asking_for_fbc',
	        onComplete: function() { }
	});
}

function save_fb_user_id() {

	FB.ensureInit(function() {	
		logging("FB.ensureInit aufgerufen");
		FB.Facebook.get_sessionState().waitUntilReady(function(session) 
		{
	      if(session)
		  {
			    var fb_id = FB.Facebook.apiClient.get_session().uid;
			
				var myAjax = new Ajax.Request(
				'modules/facebook/ajax.php', {
				        parameters: 'fb_id='+fb_id+'&cmd=store_fb_user_id',
				        onComplete: function() { }
				});
		   }
		});
   });
}

function setup_form()
{
	logging('setup_form()');
	if(document.getElementById('addcommentbutton'))
	{
		logging('addcommentbutton');
		if(fbc_comments_activated)
		{
		   	var addcomment_button = ge("addcommentbutton");
		   	
		   	addcomment_button.href="javascript: submit_comment(); void(0);";
	   	}
   	}
 }

/*
 * Our <fb:login-button> specifies this function in its onlogin attribute,
 * which is triggered after the user authenticates the app in the Connect
 * dialog and the Facebook session has been set in the cookies.
 */
function facebook_onlogin_ready() {
  // In this app, we redirect the user back to index.php. The server will read
  // the cookie and see that the user is logged in, and will deliver a new page
  // with content appropriate for a logged-in user.
  //
  // However, a more complex app could use this function to do AJAX calls
  // and/or in-place replacement of page contents to avoid a full page refresh.
  refresh_page();
}

/*
 * Umlaute ersetzen
 */

function replaceUmlaute(curText) {
	 var result = curText;
	 result=result.replace(/\u00fc/g, "ue");
	 result=result.replace(/\u00f6/g, "oe");
	 result=result.replace(/\u00e4/g, "ae");
	 result=result.replace(/\u00dc/g, "Ue");
	 result=result.replace(/\u00d6/g, "Oe");
	 result=result.replace(/\u00c4/g, "Ae");
	 result=result.replace(/\u00df/g, "sz");
	 result=result.replace(/ü/g, "ue");
	 result=result.replace(/ö/g, "oe");
	 result=result.replace(/ä/g, "ae");
	 result=result.replace(/Ü/g, "Ue");
	 result=result.replace(/Ö/g, "Oe");
	 result=result.replace(/Ä/g, "Ae");
	 result=result.replace(/ß/g, "sz");
	 return result;
}

/*
 * Leerzeichen entfernen
 */

function replaceSpace(curText) {
	 var result = curText;
	 result=result.replace(/\ /, "");
	 return result;
}


/*
 * Userdaten auslesen
 */

function get_fb_id()
{
	FB.ensureInit(function() {	
		FB.Facebook.get_sessionState().waitUntilReady(function(session) 
		{
	      if(session)
		  {
			var uid = FB.Facebook.apiClient.get_session().uid;
			var fql = 'SELECT uid FROM user WHERE uid='+uid;
		
			FB.Facebook.apiClient.fql_query(fql, function(result) 
			{
				if(document.getElementById('fb_id'))
					$('fb_id').value = result[0].uid;
				
				logging(result[0].uid);
			});
		  }
		});
	});
}

function get_main_user_data()
{

	FB.ensureInit(function() {
		
	logging("FB.ensureInit aufgerufen");
	FB.Facebook.get_sessionState().waitUntilReady(function(session) 
	{
      if(session)
	  {
      	logging("eingeloggt");
					
		var uid = FB.Facebook.apiClient.get_session().uid;
		var fql = 'SELECT first_name, last_name, uid, meeting_for, pic_big, name, pic_square_with_logo, profile_url, sex, birthday_date, meeting_sex, relationship_status, activities, interests, is_app_user, music, tv, movies, books, about_me, hs_info, education_history, work_history, profile_blurb FROM user WHERE uid='+uid;
	
		FB.Facebook.apiClient.fql_query(fql, function(result) 
		{
			//var fbc_login_state = ge('fbc_login_state');
			//removeChildren(fbc_login_state);
			
			
			var name_value = result[0].name;
			var name_array = name_value.split(' ');
			
			name_value = replaceSpace(replaceUmlaute(name_array[0]))+replaceUmlaute(name_array[1].substr(0,1));
			name_value = name_value.toLowerCase();
			
			if($('username'))
				$('username').value = name_value;
			
			if($('fb_id'))
				$('fb_id').value = result[0].uid;
			
			if($('sex'))
				$('sex').value = result[0].sex;
	
			if(result[0].birthday_date != undefined && result[0].birthday_date.length > 9)
			{
				if(document.getElementById('birthday_date'))
					$('birthday_date').value = result[0].birthday_date;
			}
			else
			{
				if ($('registerForm')) {
					
					if(result[0].birthday_date != undefined)
					{
						// read out the day and month
						array = new Array();
						array = result[0].birthday_date.split('/');
						$('tag').selectedIndex = array[1];
						$('monat').selectedIndex = array[0];
					}
					
					document.getElementById("registerForm").removeChild(document.getElementById("birthday_date"));
					Element.show('birthday_check');
				}
			}
			
			if($('meeting_sex'))
				$('meeting_sex').value = result[0].meeting_sex;
			
			if($('meeting_for'))
				$('meeting_for').value = result[0].meeting_for;
			
			if($('relationship_status'))
				$('relationship_status').value = result[0].relationship_status;
			
			if($('activities'))
				$('activities').value = result[0].activities;
			
			if($('interests'))
				$('interests').value = result[0].interests;
			
			if($('music'))
				$('music').value = result[0].music;
			
			if($('tv'))
				$('tv').value = result[0].tv;
			
			if($('movies'))
				$('movies').value = result[0].movies;
			
			if($('books'))
				$('books').value = result[0].books;
			
			if($('about_me'))
				$('about_me').value = result[0].about_me;
			
			if($('first_name'))
				$('first_name').value = result[0].first_name;
			
			if($('last_name'))
				$('last_name').value = result[0].last_name;
			
			/*
			$('hs_info').value = Object.toJSON(result[0].hs_info);
			$('education_history').value = Object.toJSON(result[0].education_history);
			$('work_history').value = Object.toJSON(result[0].work_history);
			*/
			if($('profile_blurb'))
				$('profile_blurb').value = result[0].profile_blurb;
			
			if($('pic_big'))
				$('pic_big').value = result[0].pic_big;
			
			
			if($('username'))
				check_username();
			
			/*
			var pic_value = result[0].pic_square_with_logo;
			var name_value = result[0].name;
			var userlink_value = result[0].profile_url;
			
			var p1 = document.createElement('p');
			var signout_link = document.createElement('a');
			var p2 = document.createElement('p');
	
			fbc_login_state.innerHTML = '<img id="fbc_profile_pic" src="'+pic_value+'" />';
			p1.innerHTML = 'Welcome, <a href="'+userlink_value+'">'+name_value+'</a>. You are signed in with your Facebook account.';
			signout_link.innerHTML = 'Click here to sign out.';
			signout_link.href= 'javascript:FBConnect.logout()';
			signout_link.id = 'fbc_signout_link';
			signout_link.className = 'link';
			appendNode(p1,fbc_login_state);
			appendNode(signout_link,p2);
			appendNode(p2,fbc_login_state);
			*/
		});
	  }
      else
      {
      	logging("nicht eingeloggt");
		FB.Connect.requireSession(function() {
		//alert("Du musst bei Facebook eingeloggt sein.");
		});	
	  }
		  
	      //if(typeof(fb_onload_script) == "string")
	      //	eval(fb_onload_script);
	      	
	      //FB.XFBML.Host.parseDomTree();
	    });
	});
}

/*
 * Do a page refresh after login state changes.
 * This is the easiest but not the only way to pick up changes.
 * If you have a small amount of Facebook-specific content on a large page,
 * then you could change it in Javascript without refresh.
 */
 
function refresh_page() {
  //window.location = 'index.php';
  location.reload(true);
}

/*
 * Prompts the user to grant a permission to the application.
 */
 
function facebook_prompt_permission(permission) {
  FB.ensureInit(function() {
    FB.Connect.showPermissionDialog(permission);
  });
}

/*
 * Welcome-Post publishen
 */

function publish_new_member()
{
  var fbc_template_start_text = 'ist jetzt Mitglied bei';
  var fbc_template_end_text = '';
  var fbc_home_url = page_url;
  var fbc_blog_name = communityname; 
  var fbc_post_image_url = page_url+'/grafiken/Icons/nur_icon.png';
  var fbc_template_bundle_id = 84847920255;
  var fbc_article_title = '<a href="'+page_url+'">'+communityname+'</a>.';
  var fbc_post_url = page_url;
  var fbc_to_link = 'zu '+communityname;
  var fbc_to_link_url = page_url;

  FB.ensureInit(function() {
      FB.Connect.get_status().waitUntilReady(function(status) {
          if (status == FB.ConnectState.userNotLoggedIn) {
            // If the user is currently logged into Facebook, but has not
            // authorized the app, then go ahead and show them the feed dialog + upsell
			logging("userNotLoggedIn");
			FB.Connect.requireSession(function() { publish_new_member(); });	
          }
		  else if(status == FB.ConnectState.appNotAuthorized) {
		  	logging("appNotAuthorized");
			FB.Connect.requireSession(function() { publish_new_member(); });	
		  }
		  else if(status == FB.ConnectState.connected) {
		  	logging("connected");
			
		   	var template_data = {
				'template-start-text': fbc_template_start_text,
				'template-end-text': fbc_template_end_text,
				'post-title': fbc_article_title,
				'post-url': fbc_post_url,
				'images': [{'src':fbc_post_image_url, 'href':fbc_post_url}],
				'to-link': fbc_to_link,
				'to-link-url': fbc_to_link_url
		    };
			
			var body_general = '<a href="'+page_url+'">'+communityname+'</a> ist die Community für deine Stadt: Locations, Partys, Freunde & mehr. <a href="'+page_url+'">Melde dich jetzt kostenlos an!</a>';
			
		    FB.Connect.showFeedDialog(fbc_template_bundle_id,
		                              template_data,
		                              null,
		                              body_general,
		                              null,
		                              FB.RequireConnect.require,
		                              function() { 
		                              	
		                              	if(window.location.pathname != '/register.php')
		                              		refresh_page();
		                                
		                              });
			return void(0);
		  }
		  
        });
    });
	/*
	FB.ensureInit(function() {
		
		logging("FB.ensureInit aufgerufen");
		FB.Facebook.get_sessionState().waitUntilReady(function(session) 
		{
		      if(session)
			  {
			   	var template_data = {
					'template-start-text': fbc_template_start_text,
					'template-end-text': fbc_template_end_text,
					'post-title': fbc_article_title,
					'post-url': fbc_post_url,
					'images': [{'src':fbc_post_image_url, 'href':fbc_post_url}],
					'to-link': fbc_to_link,
					'to-link-url': fbc_to_link_url
			    };
			
			    FB.Connect.showFeedDialog(fbc_template_bundle_id,
			                              template_data,
			                              null, // template_ids
			                              null, // body_general
			                              null, // story_size
			                              FB.RequireConnect.require, // require_connect
			                              function() { 
			                                //ge('commentForm').submit();
			                              });
			                              //FB.RequireConnect.promptConnect,
				return void(0);
			  }
		      else
		      {
		      	logging("nicht eingeloggt");
				FB.Connect.requireSession(function() {});	
			  }
	    });
	});
	*/
	
}

/*
 * Kommentare publishen
 */

function publish_js_comment(form_bundle_id, post_title, post_url) {
	document.getElementsByName("fbconnect_js_submit")[0].disabled="disabled";
	comment_text = document.getElementsByName("comment")[0].value;
	var template_data = {
		"post-title":post_title,
		"post-url":post_url,
		"post":comment_text
	};
	try {
		facebook_publish_feed_story(form_bundle_id, template_data);
	} catch(err) {
		document.getElementsByName("comment")[0].value = "";
		document.getElementById("fbconnect_result").innerHTML = "Error publishing story: " + err.description;
	}
	document.getElementsByName("comment")[0].value = "";
	document.getElementById("fbconnect_result").innerHTML = "Published story via Javascript to your profile feed!";
	document.getElementsByName("fbconnect_js_submit")[0].disabled="";
}

/*
 * Kommentare verkürzen
 */

function make_body_general(comment) 
{
   	var words = comment.split(' ');
   	if (words.length > 50) 
	{
     		words = words.slice(0, 50);
     		words.push('...');
   	}
   	var comment_clip = words.join(' ');
	return "\"" + comment_clip + "\"";
 }

function fb_reparse() {
	FB.ensureInit(function() {
		FB.XFBML.Host.parseDomTree();
	});
}

/*
 * Show the feed form. This would be typically called in response to the
 * onclick handler of a "Publish" button, or in the onload event after
 * the user submits a form with info that should be published.
 *
 */
function facebook_publish_feed_story(form_bundle_id, template_data) {
  // Load the feed form
  FB.ensureInit(function() {
          FB.Connect.showFeedDialog(form_bundle_id, template_data, null, null, null, FB.RequireConnect.promptConnect, null);
          //FB.Connect.showFeedDialog(form_bundle_id, template_data, null, null, FB.FeedStorySize.shortStory, FB.RequireConnect.promptConnect);
  			/* e.g.
  				    FB.Connect.showFeedDialog(FBConnect.template_bundle_id,
	                              template_data,
	                              null, // template_ids
	                              body_general,
	                              null, // story_size
	                              FB.RequireConnect.promptConnect, // require_connect
	                              function() {
	                                ge('commentform').submit();
	                              });
  			
  			*/
  });
}

/*
 * If a user is not connected, then the checkbox that says "Publish To Facebook"
 * is hidden in the "add run" form.
 *
 * This function detects whether the user is logged into facebook but just
 * not connected, and shows the checkbox if that's true.
 */
function facebook_show_feed_checkbox() {
  FB.ensureInit(function() {
      FB.Connect.get_status().waitUntilReady(function(status) {
          if (status != FB.ConnectState.userNotLoggedIn) {
            // If the user is currently logged into Facebook, but has not
            // authorized the app, then go ahead and show them the feed dialog + upsell
            checkbox = document.getElementById('publish_fb_checkbox');
            if (checkbox) {
              Element.show('publish_fb_checkbox');
            }
          }
        });
    });
}

function facebook_show_status_checkbox() {
  FB.ensureInit(function() {
      FB.Connect.get_status().waitUntilReady(function(status) {
          if (status != FB.ConnectState.userNotLoggedIn) {
            // If the user is currently logged into Facebook, but has not
            // authorized the app, then go ahead and show them the feed dialog + upsell
            checkbox = document.getElementById('publish_fb_status');
            if (checkbox) {
              Element.toggle('publish_fb_status');
            }
          }
        });
    });
}


function submit_comment()
{

   	var template_data = {
		'template-start-text': fbc_template_start_text,
		'template-end-text': fbc_template_end_text,
		'post-title': fbc_article_title,
		'post-url': fbc_post_url,
		'images': [{'src':fbc_post_image_url, 'href':fbc_post_url}],
		'to-link': fbc_to_link,
		'to-link-url': fbc_to_link_url
    };
    
    var body_general;
    
    if(document.getElementById('comment'))
   		body_general = $('comment').value;

    FB.Connect.showFeedDialog(fbc_template_bundle_id,
                              template_data,
                              null, // template_ids
                              '"'+body_general+'"', // body_general
                              null, // story_size
                              FB.RequireConnect.require, // require_connect
                              function() { 
                                ge('commentForm').submit();
                              });
                              //FB.RequireConnect.promptConnect,
	return void(0);
}

function submit_status_success()
{
	FB.Facebook.apiClient.users_setStatus($('last_message').innerHTML,false,true,function(re,ex){
	                if(null != re){
	                    //console.log('setStatus: success.');
	                }else{
	                    //console.log('setStatus: fail.' + ex);
	                }
	            });

}

function submit_status()
{
	if($('publish_fb_checkbox').checked == true)
	{
		FB.Facebook.apiClient.users_hasAppPermission('status_update',function(re,ex){
		                
						if(re != 0){
							submit_status_success();
		                }else{
							FB.Connect.showPermissionDialog('status_update', function(accepted) { submit_status_success(); } );
		                }
		            });
	}
	
	Element.hide('publish_fb_status');
}

// SHOWS DIALOG FOR USER TO ACCEPT PUBLISH STREAMS OR NOT
function fbc_show_publish_streams_permission_dialog() {
	FB.Connect.showPermissionDialog('publish_stream', function(accepted) { window.location.reload(); } );
}

// SHOWS DIALOG FOR USER TO ACCEPT EXTENDED PERMISSION OR NOT
function fbc_show_status_update_permission_dialog() {
	FB.Connect.showPermissionDialog('status_update', function(accepted) { window.location.reload(); } );
}

// SHOWS DIALOG FOR USER TO ACCEPT EXTENDED PERMISSION OR NOT
function fbc_show_offline_access_permission_dialog() {
	FB.Connect.showPermissionDialog('offline_access', function(accepted) { window.location.reload(); } );
}

function fbc_remove(e) 
{
	if(e)
    	e.parentNode.removeChild(e);
}

function fbc_remove_parent(e) 
{
  	if(e)
    	fbc_remove(e.parentNode);
}

function ge(elem) 
{
  	return document.getElementById(elem);
}

function make_body_general(comment)
{
   	var words = comment.split(' ');
   	if (words.length > 50) 
	{
     		words = words.slice(0, 50);
     		words.push('...');
   	}
   	var comment_clip = words.join(' ');
	
	return "\"" + comment_clip + "\"";
 }
 
 function handleOnFacebookLogoutCallback() {
	window.location='/logout';
}

function facebook_onlogin() {
    facebook_redirect_url = "http://"+window.location.hostname+"/register.php?step=fb_step_new&cat_1=1";
    window.location = facebook_redirect_url;
}

function handleOnFacebookSessionReadyCallback() { 
	if(typeof afterFacebookAuthentication=='function')
	{
		afterFacebookAuthentication();
	}
}

function requireFacebookSession() {
	if(typeof beforeFacebookAuthentication=='function')
	{
		beforeFacebookAuthentication();
	}
	
	FB.Connect.requireSession(handleOnFacebookSessionReadyCallback);
}

function afterFacebookAuthentication() {
	// ajax-call if registered or not
	logging("afterFacebookAuthentication");
    facebook_redirect_url = "http://"+window.location.hostname+"/register.php?step=fb_step_new&cat_1=1";
    window.location = facebook_redirect_url;
}

function publish_fb_checkbox() {

	var value = document.getElementById('publish_fb_checkbox').checked;
	
	if (value) {
		setCookie('publish_fb_checkbox', 'true', soon, false, false, false);
	}
	else{
		setCookie('publish_fb_checkbox', 'false', soon, false, false, false);
	}
}

function publish_fb_comment() {

	if (document.getElementById('publish_fb_comment').checked == true) {
		setCookie('publish_fb_comment', 'true', soon, false, false, false);
	}
	else {
		setCookie('publish_fb_comment', 'false', soon, false, false, false);
	}
}

function update_user_box() {
	
	if(document.getElementById('user_logged_in'))
	{
		$('user_logged_in').innerHTML = '<img src="grafiken/facebook-icon-navi.gif" alt="facebook" title="facebook">';
	}
	
	if(document.getElementById('publish_fb_checkbox'))
	{
		
		var publish_fb_checkbox = document.getElementById('publish_fb_checkbox');
		
		var publish_fb_checkbox_cookie = getCookie('publish_fb_checkbox');

		if(
		   publish_fb_checkbox_cookie == true ||
		   publish_fb_checkbox_cookie == 'true' || 
		   publish_fb_checkbox_cookie == null
		  )
		{
			publish_fb_checkbox.checked = 'true';
		}
	}
	
	if(document.getElementById('publish_fb_comment'))
	{
		var publish_fb_comment = document.getElementById('publish_fb_comment');
		
		var publish_fb_comment_cookie = getCookie('publish_fb_comment');
			
		if(
		   publish_fb_comment_cookie == true || 
		   publish_fb_comment_cookie == 'true' || 
		   publish_fb_comment_cookie == null
		   )
		{
			publish_fb_comment.checked = 'true';
		}
	}

	if(document.getElementById('logout_button'))
	{
		$('logout_button').href = 'javascript:FB.Connect.logoutAndRedirect("/actions.php?action=logout");';
	}
	
	/*
	user_box.innerHTML =
	"<span>"
	+ "<fb:profile-pic uid='loggedinuser' facebook-logo='true'></fb:profile-pic>"
	+ "Welcome, <fb:name uid='loggedinuser' useyou='false'></fb:name>"
	+ "</span>";
	
	FB.XFBML.Host.parseDomTree();
	*/
}