<?php

class IvtProductModel {

  public static function create(Array $data) {
    throw new Exception("Please use IvtProductController to create IvtProducts");
  }
  
  public static function getAll() {
    $items = [];
    
    $db = FronkDB::singleton(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
    
    $res = $db->select("products", "*", "1=1 ORDER BY id");
    if($db->num_rows($res)) {
      while($data = $db->fetch_object($res)) {
        $items[] = new IvtProduct($data);
      }
    }
    return $items;
  }
  
  public static function getFirst($filter) {
    $db = FronkDB::singleton(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
    
    $where = self::getSqlFilter($filter);
    
    $sql = "SELECT products.* FROM products
            LEFT JOIN customer_product ON (products.id = customer_product.pid)
            WHERE $where
            GROUP BY products.id
            ORDER by products.name LIMIT 1";
    
    
    //$res = $db->select("products", "*", "$where ORDER BY id LIMIT 1");
    $res = $db->query($sql);
    if($db->num_rows($res)) {
      $data = $db->fetch_object($res);
      $item = new IvtProduct($data);
      if($item->id) {
        return $item;
      } else {
        return null;
      }
    }
    return null;
  }
  
  public static function count($filter) {
    $db = FronkDB::singleton(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
    
    $where = self::getSqlFilter($filter);
    //$sql = "SELECT COUNT(*) cnt FROM products WHERE $where ORDER by id";
    $sql = "SELECT COUNT(*) as cnt FROM (
              SELECT products.* FROM products
              LEFT JOIN customer_product ON (products.id = customer_product.pid)
              WHERE $where
              GROUP BY products.id
              ORDER by products.name
            ) as p
            ";
    
    $res = $db->query($sql);
    if($db->num_rows($res)) {
      $data = $db->fetch_object($res);
      return $data->cnt;
    }
    return 0;
  }
  
  public static function search($filter, $limit = false) {
    $items = [];
    $db = FronkDB::singleton(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
    
    $where = self::getSqlFilter($filter);
    //$sql = "SELECT * FROM products WHERE $where ORDER by id";
    $sql = "SELECT products.* FROM products
            LEFT JOIN customer_product ON (products.id = customer_product.pid)
            WHERE $where
            GROUP BY products.id
            ORDER by products.name";
    
    mfLoghandler::singleton()->debug($sql);
    if(is_array($limit) && count($limit)) {
      if(is_numeric($limit['start']) && is_numeric($limit['count'])) {
        $sql .= " LIMIT ".$limit['start'].", ".$limit['count'];
      } elseif(is_numeric($count)) {
        $sql .= " LIMIT ".$limit['count'];
      }
    }
    
    $res = $db->query($sql);
    if($db->num_rows($res)) {
      while($data = $db->fetch_object($res)) {
        $items[] = new IvtProduct($data);
      }
    }
    return $items;
  }
  
  private static function getSqlFilter($filter) {
    $where = "1=1 ";
    
    if(array_key_exists("customer_product_id", $filter)) {
      $customer_product_id = $filter["customer_product_id"];
      if($customer_product_id === true) {
        $where .= " AND customer_product.id IS NOT NULL";
      }
      if($customer_product_id === false) {
        $where .= " AND customer_product.id IS NULL";
      }
    }
    
    /*
    if(array_key_exists("street", $filter)) {
      $street = FronkDB::singleton()->escape($filter["street"]);
      if($street) {
        $where .= " AND street like '%$street%'";
      }
    }
    
    
    if(array_key_exists("street", $filter)) {
      $street = FronkDB::singleton()->escape($filter["street"]);
      if($street) {
        $where .= " AND street like '%$street%'";
      }
    }
    */
    
    
    
    //var_dump($filter, $where);exit;
    return $where;
  }
  
}