<?php
namespace Domain\Banners;

class BannersRepository
{
  private $db;

  public function __construct( $db )
  {
    $this->db = $db;
  }

  // -------------------------------------------------------------------------
  // Odczyt
  // -------------------------------------------------------------------------

  public function bannerDetails( $bannerId )
  {
    $banner = $this->db->get( 'pp_banners', '*', [ 'id' => $bannerId ] );
    if ( !$banner ) return null;

    $langs = $this->db->select( 'pp_banners_langs', '*', [ 'id_banner' => $bannerId ] );
    $banner['languages'] = [];
    if ( is_array( $langs ) )
      foreach ( $langs as $lang )
        $banner['languages'][ $lang['id_lang'] ] = $lang;

    return $banner;
  }

  public function activeBanners( $langId )
  {
    if ( $banners = \Shared\Cache\CacheHandler::fetch( 'banners' ) )
      return $banners;

    $results = $this->db->query(
      'SELECT id, name FROM pp_banners WHERE status = 1 AND ( date_start <= \'' . date( 'Y-m-d' ) . '\' OR date_start IS NULL ) AND ( date_end >= \'' . date( 'Y-m-d' ) . '\' OR date_end IS NULL ) AND home_page = 0'
    )->fetchAll( \PDO::FETCH_ASSOC );

    $banners = [];
    if ( is_array( $results ) )
    {
      foreach ( $results as $row )
      {
        $langData = $this->db->get( 'pp_banners_langs', '*', [
          'AND' => [ 'id_banner' => $row['id'], 'id_lang' => $langId ]
        ] );
        $row['languages'] = $langData ?: [];
        $banners[] = $row;
      }
    }

    \Shared\Cache\CacheHandler::store( 'banners', $banners );
    return $banners;
  }

  public function mainBanner( $langId )
  {
    $cacheKey = "main_banner:$langId";
    if ( $banner = \Shared\Cache\CacheHandler::fetch( $cacheKey ) )
      return $banner;

    $results = $this->db->query(
      'SELECT id, name FROM pp_banners WHERE status = 1 AND ( date_start <= \'' . date( 'Y-m-d' ) . '\' OR date_start IS NULL ) AND ( date_end >= \'' . date( 'Y-m-d' ) . '\' OR date_end IS NULL ) AND home_page = 1 ORDER BY date_end ASC LIMIT 1'
    )->fetchAll( \PDO::FETCH_ASSOC );

    if ( !is_array( $results ) || empty( $results ) ) return null;

    $banner = $results[0];
    $langData = $this->db->get( 'pp_banners_langs', '*', [
      'AND' => [ 'id_banner' => $banner['id'], 'id_lang' => $langId ]
    ] );
    $banner['languages'] = $langData ?: [];

    \Shared\Cache\CacheHandler::store( $cacheKey, $banner );
    return $banner;
  }

  // -------------------------------------------------------------------------
  // Zapis / usuwanie
  // -------------------------------------------------------------------------

  public function bannerSave( $bannerId, $name, $status, $dateStart, $dateEnd, $homePage, $src, $url, $html, $text )
  {
    $languages = $this->db->select( 'pp_langs', '*', [ 'status' => 1, 'ORDER' => [ 'o' => 'ASC' ] ] );
    if ( !is_array( $languages ) ) $languages = [];
    $langCount = count( $languages );

    if ( !$bannerId )
    {
      $this->db->insert( 'pp_banners', [
        'name'       => $name,
        'status'     => $status == 'on' ? 1 : 0,
        'date_start' => $dateStart ? $dateStart : null,
        'date_end'   => $dateEnd ? $dateEnd : null,
        'home_page'  => $homePage == 'on' ? 1 : 0,
      ] );
      $bannerId = $this->db->id();
      if ( !$bannerId ) return false;

      foreach ( $languages as $i => $lang )
      {
        $this->db->insert( 'pp_banners_langs', [
          'id_banner' => $bannerId,
          'id_lang'   => $lang['id'],
          'src'       => $langCount > 1 ? $src[ $i ] : $src,
          'url'       => $langCount > 1 ? $url[ $i ] : $url,
          'html'      => $langCount > 1 ? $html[ $i ] : $html,
          'text'      => $langCount > 1 ? $text[ $i ] : $text,
        ] );
      }
    }
    else
    {
      $this->db->update( 'pp_banners', [
        'name'       => $name,
        'status'     => $status == 'on' ? 1 : 0,
        'date_start' => $dateStart ? $dateStart : null,
        'date_end'   => $dateEnd ? $dateEnd : null,
        'home_page'  => $homePage == 'on' ? 1 : 0,
      ], [ 'id' => $bannerId ] );

      $this->db->delete( 'pp_banners_langs', [ 'id_banner' => $bannerId ] );

      foreach ( $languages as $i => $lang )
      {
        $this->db->insert( 'pp_banners_langs', [
          'id_banner' => $bannerId,
          'id_lang'   => $lang['id'],
          'src'       => $langCount > 1 ? $src[ $i ] : $src,
          'url'       => $langCount > 1 ? $url[ $i ] : $url,
          'html'      => $langCount > 1 ? $html[ $i ] : $html,
          'text'      => $langCount > 1 ? $text[ $i ] : $text,
        ] );
      }
    }

    \S::delete_cache();
    return $bannerId;
  }

  public function bannerDelete( $bannerId )
  {
    $result = $this->db->delete( 'pp_banners', [ 'id' => $bannerId ] );
    \S::delete_cache();
    return $result;
  }
}