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<?php

/************************************************/
/* IPB3 Javascript                                */
/* -------------------------------------------- */
/* ips.facebook.js - Facebook SDK functionality    */
/* (c) IPS, Inc 2012                            */
/* -------------------------------------------- */
/* Author: Matt Mecham                        */
/************************************************/

var _facebook = window.IPBoard;

_facebook.prototype.facebook = {
    
    appId: '',
    extendedPerms: 'email,read_stream,publish_stream',
    
    /* ------------------------------ */
    /**
     * Constructor
    */
    init: function()
    {
        Debug.write("Initializing ips.facebook.js");
        
        document.observe("dom:loaded", function()
        {
            if ( ! $('fb-root') )
            {
                $('ipboard_body').insert( new Element( 'div', { 'id': 'fb-root' } ) );
            }
        } );
    },
    
    /* ! load */
    /**
     * Manually run to pass through appID, sets up JS
     */
    load: function( appId )
    {
        ipb.facebook.appId = appId;
        
        /* Load Facebook JS */
        ipb.facebook.asyncInit();
    },
    
    /* ! asyncInit */
    /**
     * Loads up JS and inits Facebook JS
     */
    asyncInit: function()
    {
        ipb.facebook.loadFacebookJs();
        
        window.fbAsyncInit = function()
        {
            FB.init(
            {
              appId      : ipb.facebook.appId,
              channelUrl : ipb.vars['board_url'] + 'interface/facebook/channel.php', // Channel File
              status     : true, // check login status
              cookie     : true, // enable cookies to allow the server to access the session
              xfbml      : true  // parse XFBML
            } );
         };
    },
    
    /* ! connectNow */
    /* Connects logged in user account to Facebook if not logged in
     */
    connectNow: function()
    {
        /* Already connected? */
        if ( ipb.vars['fb_uid'] == 0 )
        {
            FB.login( function( response )
            {
                   if ( response.authResponse )
                   {
                     var access_token =  FB.getAuthResponse()['accessToken'];
                    
                    Debug.write('Access Token = '+ access_token);
                     
                     /* Check we're all here and accounted for */
                     FB.api('/me', function( response )
                     {
                         Debug.dir( response );
                         var url  = ipb.vars['base_url'] + 'app=core&module=ajax&section=facebook&do=storeFacebookAuthDetails&secure_key=' + ipb.vars['secure_hash'];
                        
                        new Ajax.Request( url,
                                        {
                                            method: 'post',
                                            parameters: { 'accessToken': access_token, 'userId': response['id'] },
                                            hideLoader: true,
                                            onSuccess: function(t)
                                            {
                                                /* Nothing needed here, just return correct ID */
                                                ipb.vars['fb_uid'] = response['id'];
                                                
                                                return ipb.vars['fb_uid'];
                                            }
                                        });

                    } );
                   }
                   else
                   {
                     Debug.log('User Canceled');
                   }
               
             }, {scope: ipb.facebook.extendedPerms } );
        }
        else
        {
            return ipb.vars['fb_uid'];
        }
    },
    
    /* ! loadFacebookJs */
    loadFacebookJs: function()
    {
        var js, id = 'facebook-jssdk';
        var d      = document;
        
        if ( $( id ) )
        {
            return;
        }
         
         js = d.createElement('script');
         
         js.id = id;

        js.async = true;
        
        js.src = "//connect.facebook.net/en_US/all.js";
        
         d.getElementsByTagName('head')[0].appendChild(js);
        
    }
    
};

ipb.facebook.init();

?>