<?php
error_reporting( E_ALL ^ E_NOTICE ^ E_STRICT ^ E_WARNING ^ E_DEPRECATED );

function __autoload_my_classes( $classname )
{
  $q = explode( '\\', $classname );
  $c = array_pop( $q );
  $f = 'autoload/' . implode( '/', $q ) . '/class.' . $c . '.php';

  if ( file_exists( $f ) )
    require_once( $f );
}
spl_autoload_register( '__autoload_my_classes' );
date_default_timezone_set( 'Europe/Warsaw' );

require_once 'config.php';
require_once 'libraries/medoo/medoo.php';
require_once 'libraries/grid/config.php';
require_once 'libraries/phpmailer/class.phpmailer.php';
require_once 'libraries/phpmailer/class.smtp.php';
require_once 'libraries/rb.php';

session_start();

$mdb = new medoo( [
    'database_type' => 'mysql',
    'database_name' => $database['name'],
    'server'        => $database['host'],
    'username'      => $database['user'],
    'password'      => $database['password'],
    'charset'       => 'utf8'
  ] );

\R::setup( 'mysql:host=' . $database['host'] . ';dbname=' . $database['name'], $database['user'], $database['password'] );
\R::ext( 'xdispense', function( $type )
{
  return R::getRedBean() -> dispense( $type );
} );

function api_json_response( $data, $http_code = 200 )
{
  http_response_code( (int) $http_code );
  echo json_encode( $data );
  exit;
}

function api_validate_api_key( $mdb )
{
  $api_key = trim( (string) \S::get( 'api_key' ) );
  $stored_key = trim( (string) $mdb -> get( 'settings', 'setting_value', [ 'setting_key' => 'api_key' ] ) );

  if ( $api_key === '' || $stored_key === '' || !hash_equals( $stored_key, $api_key ) )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Invalid api_key' ], 401 );
  }
}

function api_get_product_by_offer_and_client( $mdb, $offer_id, $client_id )
{
  return $mdb -> query(
    'SELECT p.id, p.name, p.title, p.google_product_category
     FROM products p
     JOIN clients cl ON p.client_id = cl.id
     WHERE p.offer_id = :offer_id
       AND cl.id = :client_id
     LIMIT 1',
    [
      ':offer_id' => (string) $offer_id,
      ':client_id' => (int) $client_id
    ]
  ) -> fetch( \PDO::FETCH_ASSOC );
}

function api_normalize_product_text( $value )
{
  $value = trim( (string) $value );

  if ( $value === '' )
  {
    return null;
  }

  return $value;
}

// dodawanie domeny przez API
if ( \S::get( 'action' ) == 'domain_tester_add' )
{
  if ( !$mdb -> count( 'domain_tester', [ 'AND' => [ 'url' => \S::get( 'domain' ), 'hidden' => 0 ] ] ) )
  {
    $mdb -> insert( 'domain_tester', [
      'url' => \S::get( 'domain' )
    ] );
  }

  echo json_encode( ['result' => 'ok'] );
  exit;
}

// Open Page Rank - pobieranie domeny
if ( \S::get( 'action' ) == 'domain_opr_check' )
{
  $mdb -> delete( 'domain_tester', [ 'url' => '' ] );

  $domain = $mdb -> get( 'domain_tester', '*', [ 'opr' => null, 'ORDER' => [ 'date_add' => 'DESC' ] ] );
  if ( $domain )
  {
    $result['id'] = $domain['id'];
    $result['url'] = $domain['url'];
    $result['domains_left'] = $mdb -> count( 'domain_tester', [ 'opr' => null ] );
    $result['result'] = 'ok';

    echo json_encode( $result );
  }
  else
    echo json_encode( ['result' => 'bad'] );
  exit;
}

// Dodawanie komentarza do kampanii przez API (z Claude Code)
if ( \S::get( 'action' ) == 'campaign_comment_add' )
{
  $api_key = trim( \S::get( 'api_key' ) );
  $stored_key = $mdb -> get( 'settings', 'setting_value', [ 'setting_key' => 'api_key' ] );

  if ( !$api_key || !$stored_key || $api_key !== $stored_key )
  {
    echo json_encode( [ 'result' => 'error', 'message' => 'Invalid api_key' ] );
    exit;
  }

  $external_campaign_id = trim( \S::get( 'campaign_id' ) );
  $client_id_param = trim( \S::get( 'client_id' ) );
  $comment = trim( \S::get( 'comment' ) );
  $date = \S::get( 'date' ) ?: date( 'Y-m-d' );

  if ( !$external_campaign_id || !$client_id_param || !$comment )
  {
    echo json_encode( [ 'result' => 'error', 'message' => 'Missing required params: campaign_id, client_id, comment' ] );
    exit;
  }

  $client_id_clean = str_replace( '-', '', $client_id_param );

  $local_campaign = $mdb -> query(
    'SELECT c.id
     FROM campaigns c
     JOIN clients cl ON c.client_id = cl.id
     WHERE c.campaign_id = :campaign_id
       AND REPLACE( cl.google_ads_customer_id, \'-\', \'\' ) = :client_id
     LIMIT 1',
    [
      ':campaign_id' => $external_campaign_id,
      ':client_id' => $client_id_clean
    ]
  ) -> fetch( \PDO::FETCH_ASSOC );

  if ( !$local_campaign )
  {
    echo json_encode( [ 'result' => 'error', 'message' => 'Campaign not found' ] );
    exit;
  }

  \factory\Campaigns::add_campaign_comment( $local_campaign['id'], $comment, $date );

  echo json_encode( [ 'result' => 'ok' ] );
  exit;
}

// Zmiana custom_label_4 dla produktu przez API
if ( \S::get( 'action' ) == 'product_custom_label_4_set' )
{
  api_validate_api_key( $mdb );

  $offer_id        = trim( \S::get( 'offer_id' ) );
  $client_id_param = trim( \S::get( 'client_id' ) );
  $custom_label_4  = trim( \S::get( 'custom_label_4' ) );

  if ( !$offer_id || !$client_id_param )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Missing required params: offer_id, client_id' ], 422 );
  }

  $product = api_get_product_by_offer_and_client( $mdb, $offer_id, (int) $client_id_param );

  if ( !$product )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Product not found' ], 404 );
  }

  \factory\Products::set_product_data( $product['id'], 'custom_label_4', $custom_label_4 );
  \factory\Products::add_product_comment( $product['id'], 'Zmiana etykiety 4 na: ' . $custom_label_4 . ' (API)' );

  api_json_response( [ 'result' => 'ok' ] );
}

// Zmiana tytulu produktu przez API
if ( \S::get( 'action' ) == 'product_title_set' )
{
  api_validate_api_key( $mdb );

  $offer_id = trim( (string) \S::get( 'offer_id' ) );
  $client_id_param = (int) \S::get( 'client_id' );
  $new_title = api_normalize_product_text( \S::get( 'title' ) );

  if ( $offer_id === '' || $client_id_param <= 0 )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Missing required params: offer_id, client_id' ], 422 );
  }

  $product = api_get_product_by_offer_and_client( $mdb, $offer_id, $client_id_param );

  if ( !$product )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Product not found' ], 404 );
  }

  $old_title = (string) ( $product['title'] ?? '' );
  \factory\Products::set_product_data( (int) $product['id'], 'title', $new_title );

  $old_title_for_log = trim( $old_title ) !== '' ? $old_title : '[pusty]';
  $new_title_for_log = $new_title !== null ? $new_title : '[pusty]';
  \factory\Products::add_product_comment(
    (int) $product['id'],
    'Zmiana tytulu przez API: ' . $old_title_for_log . ' -> ' . $new_title_for_log
  );

  api_json_response( [
    'result' => 'ok',
    'product_id' => (int) $product['id'],
    'offer_id' => $offer_id,
    'client_id' => $client_id_param,
    'title' => $new_title
  ] );
}

// Sprawdzenie, czy tytul produktu byl juz zmieniony
if ( \S::get( 'action' ) == 'product_title_changed_check' )
{
  api_validate_api_key( $mdb );

  $offer_id = trim( (string) \S::get( 'offer_id' ) );
  $client_id_param = (int) \S::get( 'client_id' );

  if ( $offer_id === '' || $client_id_param <= 0 )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Missing required params: offer_id, client_id' ], 422 );
  }

  $product = api_get_product_by_offer_and_client( $mdb, $offer_id, $client_id_param );

  if ( !$product )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Product not found' ], 404 );
  }

  $base_name = trim( (string) ( $product['name'] ?? '' ) );
  $custom_title = trim( (string) ( $product['title'] ?? '' ) );
  $is_changed = $custom_title !== '' && $custom_title !== $base_name;

  api_json_response( [
    'result' => 'ok',
    'product_id' => (int) $product['id'],
    'offer_id' => $offer_id,
    'client_id' => $client_id_param,
    'title_changed' => $is_changed,
    'default_name' => $base_name,
    'custom_title' => $custom_title !== '' ? $custom_title : null
  ] );
}

// Zmiana Google Product Category przez API
if ( \S::get( 'action' ) == 'product_google_category_set' )
{
  api_validate_api_key( $mdb );

  $offer_id = trim( (string) \S::get( 'offer_id' ) );
  $client_id_param = (int) \S::get( 'client_id' );
  $google_category = api_normalize_product_text( \S::get( 'google_product_category' ) );

  if ( $offer_id === '' || $client_id_param <= 0 )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Missing required params: offer_id, client_id' ], 422 );
  }

  $product = api_get_product_by_offer_and_client( $mdb, $offer_id, $client_id_param );

  if ( !$product )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Product not found' ], 404 );
  }

  $old_category = (string) ( $product['google_product_category'] ?? '' );
  \factory\Products::set_product_data( (int) $product['id'], 'google_product_category', $google_category );

  $old_category_for_log = trim( $old_category ) !== '' ? $old_category : '[pusty]';
  $new_category_for_log = $google_category !== null ? $google_category : '[pusty]';
  \factory\Products::add_product_comment(
    (int) $product['id'],
    'Zmiana Google Product Category przez API: ' . $old_category_for_log . ' -> ' . $new_category_for_log
  );

  api_json_response( [
    'result' => 'ok',
    'product_id' => (int) $product['id'],
    'offer_id' => $offer_id,
    'client_id' => $client_id_param,
    'google_product_category' => $google_category
  ] );
}

// Odczyt Google Product Category przez API
if ( \S::get( 'action' ) == 'product_google_category_get' )
{
  api_validate_api_key( $mdb );

  $offer_id = trim( (string) \S::get( 'offer_id' ) );
  $client_id_param = (int) \S::get( 'client_id' );

  if ( $offer_id === '' || $client_id_param <= 0 )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Missing required params: offer_id, client_id' ], 422 );
  }

  $product = api_get_product_by_offer_and_client( $mdb, $offer_id, $client_id_param );

  if ( !$product )
  {
    api_json_response( [ 'result' => 'error', 'message' => 'Product not found' ], 404 );
  }

  $google_category = trim( (string) ( $product['google_product_category'] ?? '' ) );

  api_json_response( [
    'result' => 'ok',
    'product_id' => (int) $product['id'],
    'offer_id' => $offer_id,
    'client_id' => $client_id_param,
    'google_product_category' => $google_category !== '' ? $google_category : null
  ] );
}

// Open Page Rank - zapis
if ( \S::get( 'action' ) == 'domain_opr_save' )
{
  $mdb -> update( 'domain_tester', [
    'opr' => str_replace( ',', '.', \S::get( 'page_rank' ) ),
    'opr_date' => date( 'Y-m-d H:i:s' )
  ], [
    'id' => \S::get( 'domain_id' )
  ] );

  echo json_encode( ['result' => 'ok'] );
  exit;
}