<?php

class AdvRea4 extends ObjectModel {

    public $id_reassurance;
    public $position;
    public $active;

    public $title;
    public $subtitle;
    public $url;
    
    public static $definition = array(
        'table' => 'advreassurance4',
        'primary' => 'id_reassurance',
        'multilang' => TRUE,
        'fields' => array(
            'id_reassurance'      =>      array('type' => self::TYPE_INT, 'validate' => 'isInt'),
            'position'      =>      array('type' => self::TYPE_INT, 'validate' => 'isInt'),
            'active'      =>      array('type' => self::TYPE_INT, 'validate' => 'isInt'),

            // Lang fields
            'title'         =>      array('type' => self::TYPE_STRING, 'lang' => TRUE, 'validate' => 'isGenericName', 'size' => 255),
            'subtitle'      =>      array('type' => self::TYPE_HTML, 'lang' => TRUE, 'validate' => 'isCleanHtml'),
            'url'           =>      array('type' => self::TYPE_STRING, 'lang' => TRUE, 'validate' => 'isUrl', 'size' => 255)
        )
    );

    public function __construct($id = NULL, $id_lang = NULL, $id_shop = NULL) {
        parent::__construct($id, $id_lang, $id_shop);

        $this->image_dir = _PS_IMG_DIR_ . 'reassurance4/';
    }

    public function add($null_values = false, $autodate = true)
    {
        $result = parent::add($null_values, $autodate);
        Hook::exec('actionRefreshreassurance4');

        return $result;
    }

    public function update($null_values = FALSE) {
        $result = parent::update($null_values);
        Hook::exec('actionRefreshreassurance4');

        return $result;
    }

    public function delete($null_values = FALSE) {
        $result = parent::delete($null_values);
        Hook::exec('actionRefreshreassurance4');

        return $result;
    }

    public static function getBlocks()
    {
        $context = Context::getContext();

        $reassurance4 = Db::getInstance()->executeS('
            SELECT *
            FROM `'._DB_PREFIX_.'advreassurance4` adv
            JOIN `'._DB_PREFIX_.'advreassurance4_lang` advl ON adv.`id_reassurance` = advl.`id_reassurance` AND id_lang = '. (int)$context->language->id . '
            WHERE adv.`active` = 1
            ORDER BY `position` ASC
        ');

        return $reassurance4;
    }

    public function cleanPositions(){
        return Db::getInstance()->execute('UPDATE `'._DB_PREFIX_.'advreassurance4`
            SET `position`= `position` - 1
            WHERE `id_reassurance` = '.(int)$this->id_reassurance.'
            AND `position` > '.(int)$this->position);
    }

    public function updatePosition($way, $position) 
    {
        $sql = 'SELECT `position`, `id_reassurance`
                FROM `'._DB_PREFIX_.'advreassurance4`
                ORDER BY `position` ASC';
        if (!$res = Db::getInstance()->executeS($sql))
            return false;

        foreach ($res as $row)
            if ((int)$row['id_reassurance'] == (int)$this->id_reassurance)
                $moved_row = $row;

        if (!isset($moved_row) || !isset($position))
            return false;

        // < and > statements rather than BETWEEN operator
        // since BETWEEN is treated differently according to databases
        $res = Db::getInstance()->execute('
            UPDATE `'._DB_PREFIX_.'advreassurance4`
            SET `position`= `position` '.($way ? '- 1' : '+ 1').'
            AND `position`
            '.($way
                ? '> '.(int)$moved_row['position'].' AND `position` <= '.(int)$position
                : '< '.(int)$moved_row['position'].' AND `position` >= '.(int)$position)
        )
         && Db::getInstance()->execute('
            UPDATE `'._DB_PREFIX_.'advreassurance4`
            SET `position` = '.(int)$position.'
            WHERE `id_reassurance`='.(int)$moved_row['id_reassurance']
        );
        $this->refreshPositions();

        Hook::exec('actionRefreshreassurance4');

        return $res;
    }

    public function refreshPositions(){
        $sql = 'SELECT `id_reassurance`
                FROM `'._DB_PREFIX_.'advreassurance4`
                ORDER BY `position` ASC';
        if (!$blocks = Db::getInstance()->executeS($sql))
            return false;

        $pos=0;
        foreach ($blocks as $block) {
            Db::getInstance()->execute('
                UPDATE `'._DB_PREFIX_.'advreassurance4`
                SET `position` = '.(int)$pos.'
                WHERE `id_reassurance`='.(int)$block['id_reassurance']);
            $pos++;
        }
    }

}