<?php

class App_SideBlock_Admin_Obj extends App_SideBlock_Abstract_Obj
{
    protected $_insertPlacement = 'APPEND';
    protected $_hasFilter = true;
    protected $_filterFields = array('title', 'content');

    protected function _filter(Zend_Db_Select $select)
    {
        $this->_filterBlockByPage($select);
        return parent::_filter($select);
    }

    protected function _filterBlockByPage(Zend_Db_Select $select)
    {
        if (!empty($this->_filter['idPage'])) {
            $block2Page = $this->_tableAlias . '2Page';
            $where = array(
                "`{$block2Page}`.`idSideBlock` = `{$this->_tableAlias}`.`id`",
                $this->_db->quoteInto("`{$block2Page}`.`idPage` = ?", $this->_filter['idPage'], Qs_Db::INT_TYPE),
                $this->_db->quoteInto(
                    "`{$block2Page}`.`auto` = IF(`{$this->_tableAlias}`.`pageType` = ?, 'y', 'n')",
                    App_SideBlock_Obj::PAGE_ALL
                ),
            );
            $select->join(
                $this->_getPair($block2Page),
                Qs_Db::getWhereSql($where),
                array()
            );
        }
        return $this;
    }

    protected function _addDependenciesFromDb(array &$data)
    {
        $select = $this->_db->select();
        $select->from($this->_getTableName($this->_tableAlias . '2Page'), 'idPage')
               ->where('`idSideBlock` = ?', $data['id'], Zend_Db::INT_TYPE)
               ->where('`auto` = "n"');
        $data['idPage'] = $this->_db->fetchCol($select);
        if (!is_array($data['idPage'])) {
            $data['idPage'] = array();
        }
        return $this;
    }

    protected function _prepareList(&$list)
    {
        parent::_prepareList($list);
        if ($list && is_array($list)) {
            $sitePages = self::getPages4Select();
            $blocks2Pages = $this->_getBlocks2Pages();
            foreach ($list as &$block) {
                if (App_SideBlock_Obj::TYPE_HTML !== $block['blockType']) {
                    $block['content'] = Qs_Array::get(App_SideBlock_View::$blockTypeTitles, $block['blockType'], '');
                }
                $block['pageList'] = array();
                foreach ($blocks2Pages as $blockPage) {
                    if ($blockPage['idSideBlock'] == $block['id'] && isset($sitePages[$blockPage['idPage']])) {
                        $block['pageList'][] = str_replace('&nbsp;', '', $sitePages[$blockPage['idPage']]);
                    }
                }
                sort($block['pageList']);
            }
        }
        return $this;
    }

    protected function _insertDependency()
    {
        $this->_updateDependency();
        return $this;
    }

    protected function _updateDependency()
    {
        if (App_SideBlock_Obj::PAGE_ALL === $this->_data['pageType']) {
            $auto = true;
            $pageIds = array_keys(self::getPages4Select());
        } else {
            $auto = false;
            $pageIds = $this->_data['idPage'];
        }
        $deleteWhere = array(
            '`idSideBlock` = ?' => $this->_primaryKey,
            '`auto` = "' . ($auto ? 'y' : 'n') . '"'
        );
        $links = $this->_prepareBlock2PageLinks($pageIds); // preserve links sorter
        $this->_getTable($this->_tableAlias . '2Page')->delete($deleteWhere);
        $this->_insertLinks($this->_tableAlias . '2Page', $links, array('auto' => ($auto ? 'y' : 'n')));
        return $this;
    }

    /**
     * IMPORTANT: Function must be called before deleting links from SideBlock2Page table
     * @param array $pageIds
     * @return array|null
     */
    protected function _prepareBlock2PageLinks($pageIds)
    {
        $select = $this->_getBasicListSelect(null, array('idPage', 'idSideBlock', 'sorter'), $pageIds);
        $select->where("`{$this->_tableAlias}`.`id` = ?", $this->_primaryKey);
        if (($list = $this->_db->fetchAssoc($select))) {
            $links = array();
            foreach ($pageIds as $pageId) {
                $links[] = array(
                    'idSideBlock' => $this->_primaryKey,
                    'idPage'      => $pageId,
                    'sorter'      => (isset($list[$pageId]) ? $list[$pageId]['sorter'] : 0),
                );
            }
        } else {
            $links = $this->_ids2Links('idPage', $pageIds, 'idSideBlock', (int) $this->_primaryKey);
        }
        return $links;
    }

    protected function _getBlocks2Pages()
    {
        $select = $this->_db->select();
        $select->from($this->_getTableName($this->_tableAlias . '2Page'), '*');
        $select->where('`auto` = "n"');
        return $this->_db->fetchAll($select);
    }

    public function getReorderOptions($keyColumn = null, $titleColumn = null)
    {
        $keyColumn = (null === $keyColumn) ? $this->_reorderKeyColumn : $keyColumn;
        $titleColumn = (null === $titleColumn) ? $this->_reorderTitleColumn : $titleColumn;

        $select = $this->getListSelect();
        $this->_where4Sorter($select);
        $select->order($this->_tableAlias . '2Page.sorter');
        $list = $this->_db->fetchAll($select);

        $options = array();
        foreach ($list as $row) {
            $options[$row[$keyColumn]] = $row[$titleColumn];
        }

        return $options;
    }

    public function updateOrder(array $order)
    {
        if (($idPage = $this->getFilter('idPage'))) {
            $table = $this->_getTable($this->_tableAlias . '2Page');
            foreach ($order as $sorter => $blockId) {
                $table->update(
                    array('sorter' => (int) $sorter),
                    array('idSideBlock = ?' => (int) $blockId, 'idPage = ?' => $idPage)
                );
            }
        }
        return $this;
    }

    public static function onPagePostPublish(App_Cms_Event $event)
    {
        $obj = new self();
        $obj->_onPagePostPublish($event);
        return;
    }

    protected function _onPagePostPublish(App_Cms_Event $event)
    {
        if ('y' === Qs_Array::get($event->pageData, 'system')) {
            return $this;
        }

        $_pageId = (int) $event->pageId;

        // get all-pages blocks without current page
        $subSelect = $this->_db->select();
        $subSelect->from($this->_getPair($this->_tableAlias . '2Page'), array('idSideBlock'));
        $subSelect->where("`{$this->_tableAlias}2Page`.`idPage` = ?", $_pageId, Qs_Db::INT_TYPE);
        $subSelect->where("`{$this->_tableAlias}2Page`.`idSideBlock` = `{$this->_tableAlias}`.`id`");
        $subSelect->limit(1);

        $select = $this->_db->select();
        $select->from($this->_getPair($this->_tableAlias), array('id'));
        $select->where("`{$this->_tableAlias}`.`pageType` = ?", App_SideBlock_Obj::PAGE_ALL);
        $select->where('NOT EXISTS (' . $subSelect . ')');
        $blocksWithoutPage = $this->_db->fetchCol($select);

        // add current to side blocks
        $links = $this->_ids2Links('idSideBlock', $blocksWithoutPage, 'idPage', $_pageId, array('sorter' => 0));
        $this->_insertLinks($this->_tableAlias . '2Page', $links, array('auto' => 'y'));
        return $this;
    }

    public static function onPagePostDelete(App_Cms_Event $event)
    {
        $db = Qs_Db::getInstance();
        $_tableName = $db->quoteIdentifier(Qs_Db::getTableName('SideBlock2Page'));
        $_pageId = (int) $event->pageId;
        $sql = 'DELETE FROM ' . $_tableName . ' WHERE `idPage` = ' . $_pageId;
        $db->query($sql);
        return;
    }
}