<?php
/**
 * @version   $Id: FieldsAttach.php 13467 2013-09-13 23:41:54Z btowles $
 * @author    RocketTheme http://www.rockettheme.com
 * @copyright Copyright (C) 2007 - 2013 RocketTheme, LLC
 * @license   http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
 */

class RokSprocket_Provider_FieldsAttach extends RokSprocket_Provider_AbstarctJoomlaBasedProvider
{
	protected static $available;
    protected static $extra_fields;

    /**
     * @static
     * @return bool
     */
	public static function isAvailable()
	{
		if (isset(self::$available)) {
			return self::$available;
		}

		if (!class_exists('JFactory')) {
			self::$available = false;

		} else {
			$db    = JFactory::getDbo();
			$query = $db->getQuery(true);

			$query->select('a.extension_id');
			$query->from('#__extensions AS a');
			$query->where('a.type = "component"');
			$query->where('a.element = "com_fieldsattach"');
			$query->where('a.enabled = 1');

			$db->setQuery($query);

			if ($db->loadResult()) {
				self::$available = true;

			} else {
				self::$available = false;
			}
		}
		return self::$available;
	}

    /**
     * @param array $filters
     * @param array $sort_filters
     */
    public function __construct($filters = array(), $sort_filters = array())
    {
        parent::__construct('fieldsattach');
        $this->setFilterChoices($filters, $sort_filters);
    }

    /**
     * @param     $raw_item
     * @param int $dborder
     *
     * @return \RokSprocket_Item
     */
    protected function convertRawToItem($raw_item, $dborder = 0)
    {
        require_once (JPath::clean(JPATH_SITE . '/components/com_content/helpers/route.php'));
        if (file_exists(JPath::clean(JPATH_SITE . '/libraries/joomla/html/html/content.php'))) require_once (JPath::clean(JPATH_SITE . '/libraries/joomla/html/html/content.php'));
        if (class_exists('JModelLegacy')) JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_content/models', 'ContentModel');
        //$textfield = $this->params->get('fieldsattach_articletext_field', '');

        $item = new RokSprocket_Item();

        $item->setProvider($this->provider_name);
        $item->setId($raw_item->id);
        $item->setAlias($raw_item->alias);
        $item->setAuthor(($raw_item->created_by_alias) ? $raw_item->created_by_alias : $raw_item->author_name);
        $item->setTitle($raw_item->title);
        $item->setDate($raw_item->created);
        $item->setPublished(($raw_item->state == 1) ? true : false);
        $item->setCategory($raw_item->category_title);
        $item->setHits($raw_item->hits);
        $item->setRating($raw_item->rating);
        $item->setMetaKey($raw_item->metakey);
        $item->setMetaDesc($raw_item->metadesc);
        $item->setMetaData($raw_item->metadata);
        $item->setPublishUp($raw_item->publish_up);
        $item->setPublishDown($raw_item->publish_down);

        //Set up texts array
        $texts = array();
        if ($text_fields = self::getFieldTypes(array("textarea", "input"))){

            foreach ($text_fields as $field) {
                $text = $this->getFieldValue($raw_item->id, $field->id);
                $texts['text_' . $field->id] = $text;
            }
        }

        $texts['text_introtext'] = $raw_item->introtext;
        $texts['text_fulltext'] = $raw_item->fulltext;
        $texts['text_metadesc'] = $raw_item->metadesc;
        $texts = $this->processPlugins($texts);
        $item->setTextFields($texts);
        $item->setText($texts['text_introtext']);

        //set up images array
        $images = array();
        if ($image_fields = self::getFieldTypes("image")) {
            foreach ($image_fields as $field) {
                $image_uri = $this->getFieldValue($raw_item->id, $field->id);
                $loc1 = JPath::clean(JPATH_SITE . '/images/documents/' . $raw_item->id . '/' . $image_uri);
                $loc2 = JPath::clean(JPATH_SITE . '/' . $image_uri);
                if (JFile::exists($loc1) || JFile::exists($loc2)) {
                    $image_field = new RokSprocket_Item_Image();
                    if (JFile::exists($loc1)){
                        $image_field->setSource($loc1);
                    } else {
                        $image_field->setSource($loc2);
                    }
                    $image_field->setIdentifier('image_' . $field->id);
                    $image_field->setCaption('');
                    $image_field->setAlttext('');
                    $images['image_' . $field->id] = $image_field;
                }
            }
        }
        if (isset($raw_item->images) && !empty($raw_item->images)) {
            try {
                $raw_images = RokCommon_JSON::decode($raw_item->images);
                if (isset($raw_images->image_intro)) {
                    $image_intro = new RokSprocket_Item_Image();
                    $image_intro->setSource(JPath::clean(JURI::root(true) . '/' . $raw_images->image_intro));
                    $image_intro->setIdentifier('image_intro');
                    $image_intro->setCaption($raw_images->image_intro_caption);
                    $image_intro->setAlttext($raw_images->image_intro_alt);
                    $images[$image_intro->getIdentifier()] = $image_intro;
                }

                if (isset($raw_images->image_fulltext)) {
                    $image_fulltext = new RokSprocket_Item_Image();
                    $image_fulltext->setSource(JPath::clean(JURI::root(true) . '/' . $raw_images->image_fulltext));
                    $image_fulltext->setIdentifier('image_fulltext');
                    $image_fulltext->setCaption($raw_images->image_fulltext_caption);
                    $image_fulltext->setAlttext($raw_images->image_fulltext_alt);
                    $images[$image_fulltext->getIdentifier()] = $image_fulltext;
                }


            } catch (RokCommon_JSON_Exception $jse) {
                //TODO log unable to get image for article
            }
        }
        if (isset($images['image_fulltext']) && $images['image_fulltext']) {
            $image_primary = $images['image_fulltext'];
        } else {
            if (isset($images['image_intro']) && $images['image_intro']) {
                $image_primary = $images['image_intro'];
            } else {
                if (count($images)) {
                    $image_primary = array_shift(array_values($images));
                } else {
                    $image_primary = array();
                }
            }
        }
        $item->setPrimaryImage($image_primary);
        $item->setImages($images);

        //set up links array
        $links = array();
        if ($fields = self::getFieldTypes("link")){

            foreach ($fields as $field) {
                $link_url = $this->getFieldValue($raw_item->id, $field->id);
                $link_field = new RokSprocket_Item_Link();
                $link_field->setUrl($link_url);
                $link_field->setText('');
                $links['url_' . $field->id] = $link_field;
            }
        }
        if (isset($raw_item->urls) && !empty($raw_item->urls)) {
            try {
                $raw_links = RokCommon_JSON::decode($raw_item->urls);
                if (isset($raw_links->urla)) {
                    $linka = new RokSprocket_Item_Link();
                    $linka->setUrl($raw_links->urla);
                    $linka->setText($raw_links->urlatext);
                    $linka->setIdentifier('urla');
                    $links[$linka->getIdentifier()] = $linka;
                    $item->setPrimaryLink($linka);
                }
                if (isset($raw_links->urlb)) {
                    $linkb = new RokSprocket_Item_Link();
                    $linkb->setUrl($raw_links->urlb);
                    $linkb->setText($raw_links->urlbtext);
                    $linkb->setIdentifier('urlb');
                    $links[$linkb->getIdentifier()] = $linkb;
                }
                if (isset($raw_links->urlc)) {
                    $linkc = new RokSprocket_Item_Link();
                    $linkc->setUrl($raw_links->urlc);
                    $linkc->setText($raw_links->urlctext);
                    $linkc->setIdentifier('urlc');
                    $links[$linkc->getIdentifier()] = $linkc;
                }
            } catch (RokCommon_JSON_Exception $jse) {
                //TODO log unable to get links for article
            }
        }
        $item->setLinks($links);

        $primary_link = new RokSprocket_Item_Link();
        $slug = !empty($raw_item->alias) ? ($raw_item->id . ':' . $raw_item->alias) : $raw_item->id;
        $catslug = !empty($raw_item->category_alias) ? ($raw_item->catid . ':' . $raw_item->category_alias) : $raw_item->catid;
        $primary_link->setUrl(JRoute::_(ContentHelperRoute::getArticleRoute($slug, $catslug), true));
        $primary_link->getIdentifier('article_link');

        $item->setPrimaryLink($primary_link);

        // unknown joomla items
        $item->setCommentCount(0);
        $item->setTags(array());

        $item->setDbOrder($dborder);

        return $item;
    }

    /**
     * @param $id
     *
     * @return string
     */
    protected function getArticleEditUrl($id)
    {
        return JURI::root(true) . '/administrator/index.php?option=com_content&task=article.edit&id=' . $id;
    }

    /**
     * @return array the array of image type and label
     */
    public static function getImageTypes()
    {
        $list = array();
        if ($fields = self::getFieldTypes("image", false)) {
            foreach ($fields as $field) {
                $list['image_' . $field->value] = array();
                $list['image_' . $field->value]['group'] = $field->id;
                $list['image_' . $field->value]['display'] = $field->title;
            }
        }
        $static = array(
            'image_intro' => array(
                'group' => null, 'display' => 'Article Intro Image'
            ), 'image_fulltext' => array(
                'group' => null, 'display' => 'Article Full Image'
            )
        );
        $list = array_merge($static, $list);
        return $list;
    }

    /**
     * @return array the array of link types and label
     */
    public static function getLinkTypes()
    {
        $list = array();
        if ($fields = self::getFieldTypes("link", false)) {
            foreach ($fields as $field) {
                $list['url_' . $field->value] = array();
                $list['url_' . $field->value]['group'] = $field->id;
                $list['url_' . $field->value]['display'] = $field->title;
            }
        }

        $static = array(
            'urla' => array(
                'group' => null, 'display' => 'Link A'
            ), 'urlb' => array(
                'group' => null, 'display' => 'Link B'
            ), 'urlc' => array(
                'group' => null, 'display' => 'Link C'
            )
        );

        $list = array_merge($static, $list);
        return $list;
    }

    /**
     * @return array the array of link types and label
     */
    public static function getTextTypes()
    {
        $list = array();
        if ($fields = self::getFieldTypes(array("textarea", "input"), false)) {
            $list = array();
            foreach ($fields as $field) {
                $list['text_' . $field->value] = array();
                $list['text_' . $field->value]['group'] = $field->id;
                $list['text_' . $field->value]['display'] = $field->title;
            }
        }
        $static = array(
            'text_fulltext' => array('group' => null, 'display' => 'Full Text'),
            'text_introtext' => array('group' => null, 'display' => 'Intro Text'),
            'text_metadesc' => array('group' => null, 'display' => 'Meta Description'),
        );
        $list = array_merge($static, $list);
        return $list;
    }

    private static function getFieldTypes($needed_field_types = false, $id_only = true)
    {
        if (!isset(self::$extra_fields)) {

            $db = JFactory::getDbo();
            $query = $db->getQuery(true);

            $query->select('f.id, f.id as value, f.title, f.groupid, f.articlesid, f.type');
            $query->from('#__fieldsattach as f');
            $query->join('LEFT', '#__fieldsattach_groups AS fg ON fg.id=f.groupid');
            $query->order('f.title ASC');
            $query->where('fg.group_for = "0"');

            $db->setQuery($query);
            self::$extra_fields = $db->loadObjectList();
            if (self::$extra_fields == null) {
                self::$extra_fields = array();
            }
        }
        if (!is_array($needed_field_types)) {
            $needed_field_types = array($needed_field_types);
        }

        $types = array();
        foreach (self::$extra_fields as $extra_field) {
            foreach ($needed_field_types as $needed_field_type) {
                if (($extra_field->type == $needed_field_type) || ($needed_field_type == 'all')) {
                    if ($id_only) {
                        $idclass = new stdClass();
                        $idclass->id = $extra_field->id;
                        $types[] = $idclass;
                    } else {
                        $types[] = $extra_field;
                    }
                }
            }
        }
        return $types;
    }

    private static function getFieldValue($item_id = false, $field_id = false)
    {
        if (!$item_id || !$field_id) return '';

        $db = JFactory::getDbo();
        $query = $db->getQuery(true);

        $query->select('value');
        $query->from('#__fieldsattach_values');
        $query->where('fieldsid = ' . $field_id);
        $query->where('articleid = ' . $item_id);

        $db->setQuery($query);
        return $db->loadResult();
    }

}

