<?php

defined('_JEXEC') or die('Access denied');

jimport('joomla.application.component.view');
jimport('joomla.environment.request');
jimport('joomla.log.log');
jimport('joomla.methods');

class OpenAireViewChart extends JViewLegacy {
	const MODEL = 'statistics';
	const ACCESS_MODE = 'accessMode';
	const PROGRAMME = 'programme';
	const SCIENTIFIC_AREA = 'scientificArea';
	const COUNTRY = 'country';
	const INSTITUTION = 'institution';
	const LIMIT = 15;
	const MAX_ACRONYM = 10;
	const ACRONYM_SUFFIX = '...';
	const LOG = 'openaire';
		
	function display($template = NULL) {
		$this -> chart = JRequest :: getString('chart', self :: ACCESS_MODE);
		$model = $this -> getModel(self :: MODEL);
                mb_internal_encoding('UTF-8');
		switch ($this -> chart) {
		case self :: ACCESS_MODE:
			$this -> publicationsByCategory = $model -> getPublicationsByAccessMode();
			break;
		case self :: PROGRAMME:
			$this -> publicationsByCategory = $model -> getPublicationsByProgramme(self :: LIMIT);
			foreach ($this -> publicationsByCategory as $publicationsByCategory) {
				if ($publicationsByCategory -> acronym == NULL)
					$publicationsByCategory -> acronym = $publicationsByCategory -> name;
				if (strlen($publicationsByCategory -> acronym) > self :: MAX_ACRONYM)
					$publicationsByCategory -> acronym = mb_substr($publicationsByCategory -> acronym, 0, self :: MAX_ACRONYM - strlen(self :: ACRONYM_SUFFIX)) . self :: ACRONYM_SUFFIX;
			}
			$this -> chartTitle = JText :: _('PUBLICATIONS_PROJECTS_PER_PROGRAMME');
			break;
		case self :: SCIENTIFIC_AREA:
			$this -> publicationsByCategory = $model -> getPublicationsByScientificArea(self :: LIMIT);
			foreach ($this -> publicationsByCategory as $publicationsByCategory) {
				if ($publicationsByCategory -> acronym == NULL)
					$publicationsByCategory -> acronym = $publicationsByCategory -> name;
				if (strlen($publicationsByCategory -> acronym) > self :: MAX_ACRONYM)
					$publicationsByCategory -> acronym = mb_substr($publicationsByCategory -> acronym, 0, self :: MAX_ACRONYM - strlen(self :: ACRONYM_SUFFIX)) . self :: ACRONYM_SUFFIX;
			}
			$this -> chartTitle = JText :: _('PUBLICATIONS_PROJECTS_PER_SCIENTIFIC_AREA');
			break;
		case self :: COUNTRY:
			$this -> publicationsByCategory = $model -> getPublicationsByCountry(self :: LIMIT);
			foreach ($this -> publicationsByCategory as $publicationsByCategory) {
				if ($publicationsByCategory -> acronym == NULL)
					$publicationsByCategory -> acronym = $publicationsByCategory -> name;
				if (strlen($publicationsByCategory -> acronym) > self :: MAX_ACRONYM)
					$publicationsByCategory -> acronym = mb_substr($publicationsByCategory -> acronym, 0, self :: MAX_ACRONYM - strlen(self :: ACRONYM_SUFFIX)) . self :: ACRONYM_SUFFIX;
			}
			$this -> chartTitle = JText :: _('PUBLICATIONS_PROJECTS_PER_COUNTRY');
			break;
		case self :: INSTITUTION:
			$this -> publicationsByCategory = $model -> getPublicationsByInstitution(self :: LIMIT);
			foreach ($this -> publicationsByCategory as $publicationsByCategory) {
				if ($publicationsByCategory -> acronym == NULL)
					$publicationsByCategory -> acronym = $publicationsByCategory -> name;
				if (strlen($publicationsByCategory -> acronym) > self :: MAX_ACRONYM)
					$publicationsByCategory -> acronym = mb_substr($publicationsByCategory -> acronym, 0, self :: MAX_ACRONYM - strlen(self :: ACRONYM_SUFFIX)) . self :: ACRONYM_SUFFIX;
			}
			$this -> chartTitle = JText :: _('PUBLICATIONS_PROJECTS_PER_INSTITUTION');
		}		
		if (count($errors = $this -> get('Errors')) > 0) {
			JLog :: add('Error viewing chart: ' . implode("\n", $errors), JLog :: ERROR, self :: LOG);
			return FALSE;
		}
		parent :: display($template);
	}
}