<?php

class DashboardRDFWriter 
{
    protected $model;

    protected $resourceDashboard;
    protected $dashboardID;

    protected $filePath;

    public function __construct($dashboardID)
    {
        // Create empty MemModel
        $factory = new ModelFactory();
        $this->model = $factory->getDefaultModel();

        $this->dashboardID = $dashboardID;	
        $this->filePath = 'data/dashboards/';
        if (!is_dir($this->filePath))
            mkdir($this->filePath);	
    }	

    public function saveDashboard()
    {	
        $this->model->saveAs($this->filePath.'dashboard_'.$this->dashboardID.'.rdf','rdf');
    }
    
    public function createDashboard($dTitle, $dDescription, $dCreatorID)
    {
        $this->resourceDashboard = new Resource(DASHBOARD.'/'.$this->dashboardID);

        $resourceDashboardType = new Resource(DASHBOARD);
        $predicateRType = new Resource(RTYPE);
        $this->model->add(new Statement($this->resourceDashboard,$predicateRType,$resourceDashboardType));

        $literalDashboardID = new Literal($this->dashboardID);
        $predicateUniqueID = new Resource(UID);
        $this->model->add(new Statement($this->resourceDashboard,$predicateUniqueID,$literalDashboardID));

        $predicateTitle = new Resource(TITLE);		
        $dashboardTitle = new Literal($dTitle);
        $this->model->add(new Statement($this->resourceDashboard,$predicateTitle,$dashboardTitle));		

        $predicateDescription = new Resource(DESCRIPTION);
        $dashboardDescription = new Literal($dDescription);
        $this->model->add(new Statement($this->resourceDashboard,$predicateDescription,$dashboardDescription));
        
        $predicateCreator = new Resource(CREATOR);
        $userID = new Literal($dCreatorID);
        $this->model->add(new Statement($this->resourceDashboard,$predicateCreator,$userID));
    }
    
    public function addGraph($gID,$gTitle,$gDescription,$gTypes,$gData)
    {
        $resourceGraph = new Resource(GRAPH);
        
        $predicateTitle = new Resource(TITLE);		
        $graphTitle = new Literal($gTitle);
        $this->model->add(new Statement($resourceGraph,$predicateTitle,$graphTitle));		

        $predicateDescription = new Resource(DESCRIPTION);
        $graphDescription = new Literal($gDescription);
        $this->model->add(new Statement($resourceGraph,$predicateDescription,$graphDescription));
        
        $predicateUniqueID = new Resource(UID);
        $graphID = new Literal($gID);
        $this->model->add(new Statement($resourceQuestion,$predicateUniqueID,$graphID));
        
        $predicateGraphType = new Resource(GRAPH_TYPE);
        foreach($gTypes as $gType)
        {
            $graphType = new Literal($gType);
            $this->model->add(new Statement($resourceGraph,$predicateGraphType,$gType));
        }
        
        $predicateData = new Resource(HAS_DATA);
        foreach($gData as $gThis)
        {
            $resourceData = new Resource(DATA);
            $this->model->add(new Statement($resourceGraph,$predicateData,$resourceData));
            
            $dataType = new Literal($gThis['type']);
            $predicateDataType = new Resource(DATA_TYPE);
            $this->model->add(new Statement($resourceData,$predicateDataType,$dataType));
            
            $dataID = new Literal($gThis['id']);
            $this->model->add(new Statement($resourceData,$predicateUniqueID,$dataID));            
        }
        
        $predicateHasGraph = new Resource(HAS_GRAPH);
        $this->model->add(new Statement($this->resourceDashboard,$predicateHasGraph,$resourceGraph));
    }
}
?>