function leyka_save_settings($tab_name)
{
    $options_names = array();
    foreach (leyka_opt_alloc()->get_tab_options($tab_name) as $entry) {
        if (is_array($entry)) {
            foreach ($entry as $key => $option) {
                if ($key == 'section') {
                    $options_names = array_merge($options_names, $option['options']);
                } else {
                    $options_names[] = $option;
                }
            }
        } else {
            $options_names[] = $entry;
        }
    }
    foreach ($options_names as $name) {
        $option_type = leyka_options()->get_type_of($name);
        if ($option_type == 'checkbox') {
            leyka_options()->opt($name, isset($_POST["leyka_{$name}"]) ? 1 : 0);
        } elseif ($option_type == 'multi_checkbox') {
            if (isset($_POST["leyka_{$name}"]) && leyka_options()->opt($name) != $_POST["leyka_{$name}"]) {
                leyka_options()->opt($name, (array) $_POST["leyka_{$name}"]);
            }
        } elseif ($option_type == 'html' || $option_type == 'rich_html') {
            if (isset($_POST["leyka_{$name}"]) && leyka_options()->opt($name) != $_POST["leyka_{$name}"]) {
                leyka_options()->opt($name, esc_attr(stripslashes($_POST["leyka_{$name}"])));
            }
        } else {
            if (isset($_POST["leyka_{$name}"]) && leyka_options()->opt($name) != $_POST["leyka_{$name}"]) {
                leyka_options()->opt($name, esc_attr(stripslashes($_POST["leyka_{$name}"])));
            }
        }
    }
}

function leyka_render_section_area($section)
{
    ?>

    <div class="leyka-options-section <?php 
    echo $section['is_default_collapsed'] ? 'collapsed' : '';
    ?>
" id="<?php 
    echo $section['name'];
    ?>
">
        <div class="header"><h3><?php 
    echo esc_attr($section['title']);
    ?>
</h3></div>
        <div class="content">
            <?php 
    foreach ($section['options'] as $option) {
        $option_info = leyka_options()->get_info_of($option);
        do_action("leyka_render_{$option_info['type']}", $option, $option_info);
    }
    ?>
        </div>
    </div>
<?php 
}

 public function _handle_service_calls($call_type = '')
 {
     if (empty($_POST['orderId'])) {
         $message = __("This message has been sent because a call to your RBK Money callback was made without orderId parameter given. The details of the call are below.", 'leyka') . "\n\r\n\r";
         $message .= "THEIR_POST:\n\r" . print_r($_POST, true) . "\n\r\n\r";
         $message .= "GET:\n\r" . print_r($_GET, true) . "\n\r\n\r";
         $message .= "SERVER:\n\r" . print_r($_SERVER, true) . "\n\r\n\r";
         wp_mail(get_option('admin_email'), __('RBK Money - orderId missing!', 'leyka'), $message);
         status_header(200);
         die;
     }
     $donation = new Leyka_Donation((int) stripslashes($_POST['orderId']));
     if (!$donation) {
         status_header(200);
         die;
     }
     // Test for e-sign:
     if (leyka_options()->opt('rbk_use_hash')) {
         $sign = hash(leyka_options()->opt('rbk_hash_type'), implode('::', array(leyka_options()->opt('rbk_eshop_id'), $_POST['orderId'], $_POST['serviceName'], leyka_options()->opt('rbk_eshop_account'), $donation->amount, mb_strtoupper($donation->currency), $_POST['paymentStatus'], $_POST['userName'], $donation->donor_email, $_POST['paymentData'], leyka_options()->opt('rbk_secret_key'))));
         if (empty($_POST['hash']) || $sign != trim(mb_strtolower($_POST['hash']))) {
             $message = __("This message has been sent because a call to your RBK Money callback was called with wrong data hash. This could mean someone is trying to hack your payment site. The details of the call are below.", 'leyka') . "\n\r\n\r";
             $message .= "POST:\n\r" . print_r($_POST, true) . "\n\r\n\r";
             $message .= "GET:\n\r" . print_r($_GET, true) . "\n\r\n\r";
             $message .= "SERVER:\n\r" . print_r($_SERVER, true) . "\n\r\n\r";
             wp_mail(get_option('admin_email'), __('RBK Money hash check failed!', 'leyka'), $message);
             status_header(200);
             die;
         }
     }
     // Single payment:
     switch ($_POST['paymentStatus']) {
         case 4:
             $new_status = 'failed';
             break;
         case 5:
             $new_status = 'funded';
             break;
         default:
             $new_status = 'submitted';
     }
     if ($donation->status != $new_status) {
         $donation->add_gateway_response($_POST);
         $donation->status = $new_status;
         if (!$donation->donor_email && !empty($_POST['userEmail'])) {
             $donation->donor_email = $_POST['userEmail'];
         }
         if (!$donation->donor_name && !empty($_POST['userName'])) {
             $donation->donor_name = $_POST['userName'];
         }
         Leyka_Donation_Management::send_all_emails($donation->id);
     }
     status_header(200);
     die;
 }

function leyka_add_gateway_metabox($post, $args)
{
    // $post is always null
    /** @var Leyka_Gateway $gateway */
    $gateway = $args['args']['gateway'];
    $pm_active = leyka_options()->opt('pm_available');
    ?>


    <div>

        <?php 
    foreach ($gateway->get_payment_methods() as $pm) {
        ?>

            <div>
                <input type="checkbox" name="leyka_pm_available[]" value="<?php 
        echo $pm->full_id;
        ?>
" class="pm-active" id="<?php 
        echo $pm->full_id;
        ?>
" data-pm-label="<?php 
        echo $pm->title_backend;
        ?>
" data-pm-label-backend="<?php 
        echo $pm->label_backend;
        ?>
" <?php 
        echo in_array($pm->full_id, $pm_active) ? 'checked="checked"' : '';
        ?>
>
                <label for="<?php 
        echo $pm->full_id;
        ?>
"><?php 
        echo $pm->title_backend;
        ?>
</label>
            </div>
        <?php 
    }
    ?>


    </div>
<?php 
}

 public function process_form($gateway_id, $pm_id, $donation_id, $form_data)
 {
     load_textdomain('leyka', LEYKA_PLUGIN_DIR . 'lang/leyka-' . get_locale() . '.mo');
     // Localize a quittance first
     header('HTTP/1.1 200 OK');
     header('Content-Type: text/html; charset=utf-8');
     $campaign = new Leyka_Campaign($form_data['leyka_campaign_id']);
     $quittance_html = str_replace(array('#BACK_TO_DONATION_FORM_TEXT#', '#PRINT_THE_QUITTANCE_TEXT#', '#QUITTANCE_RECEIVED_TEXT#', '#SUCCESS_URL#', '#PAYMENT_COMMENT#', '#PAYER_NAME#', '#RECEIVER_NAME#', '#SUM#', '#INN#', '#KPP#', '#ACC#', '#RECEIVER_BANK_NAME#', '#BIC#', '#CORR#'), array(__('Return to the donation form', 'leyka'), __('Print the quittance', 'leyka'), __("OK, I've received the quittance", 'leyka'), get_permalink(leyka_options()->opt('quittance_redirect_page')), $campaign->payment_title . " (№ {$donation_id})", $form_data['leyka_donor_name'], leyka_options()->opt('org_full_name'), (int) $form_data['leyka_donation_amount'], leyka_options()->opt('org_inn'), leyka_options()->opt('org_kpp'), leyka_options()->opt('org_bank_account'), leyka_options()->opt('org_bank_name'), leyka_options()->opt('org_bank_bic'), leyka_options()->opt('org_bank_corr_account')), $this->_payment_methods[$pm_id]->get_quittance_html());
     for ($i = 0; $i < 10; $i++) {
         $quittance_html = str_replace("#INN_{$i}#", substr(leyka_options()->opt('org_inn'), $i, 1), $quittance_html);
     }
     for ($i = 0; $i < 20; $i++) {
         $quittance_html = str_replace("#ACC_{$i}#", substr(leyka_options()->opt('org_bank_account'), $i, 1), $quittance_html);
     }
     for ($i = 0; $i < 9; $i++) {
         $quittance_html = str_replace("#BIC_{$i}#", substr(leyka_options()->opt('org_bank_bic'), $i, 1), $quittance_html);
     }
     for ($i = 0; $i < 20; $i++) {
         $quittance_html = str_replace("#CORR_{$i}#", substr(leyka_options()->opt('org_bank_corr_account'), $i, 1), $quittance_html);
     }
     die($quittance_html);
 }

 public function _handle_service_calls($call_type = '')
 {
     error_log_yandex_phyz("\n\n---- {$call_type} ----\n\n" . print_r($_REQUEST, true));
     $donation_id = (int) @$_POST['label'];
     // Donation ID
     $amount = (int) @$_POST['withdraw_amount'];
     error_log_yandex_phyz("Label={$donation_id}\n");
     error_log_yandex_phyz("Amount={$amount}\n");
     if (!$donation_id) {
         error_log_yandex_phyz("Label is empty\n");
         return;
     }
     $donation = new Leyka_Donation($donation_id);
     error_log_yandex_phyz("Donation initialized\n");
     error_log_yandex_phyz(print_r($donation, TRUE) . "\n");
     $params_to_sha1 = implode('&', array(@$_POST['notification_type'], @$_POST['operation_id'], @$_POST['amount'], @$_POST['currency'], @$_POST['datetime'], @$_POST['sender'], @$_POST['codepro'], leyka_options()->opt('yandex_money_secret'), @$_POST['label']));
     error_log_yandex_phyz("Params_to_sha1={$params_to_sha1}\n");
     $sha1 = sha1($params_to_sha1);
     error_log_yandex_phyz("sha1={$sha1}\n");
     if ($sha1 != @$_POST['sha1_hash']) {
         error_log_yandex_phyz("Invalid response sha1_hash\n");
         $this->_check_order_answer(1, __('Sorry, there is some tech error on our side. Your payment will be cancelled.', 'leyka'), __('Invalid response sha1_hash', 'leyka'));
     } elseif ($donation) {
         error_log_yandex_phyz("Donation OK\n");
         error_log_yandex_phyz('$donation->sum=' . $donation->sum . "\n");
         error_log_yandex_phyz('$donation->status=' . $donation->status . "\n");
         if ($donation->sum != $amount) {
             error_log_yandex_phyz("Donation sum is unmatched\n");
             $this->_check_order_answer(1, __('Sorry, there is some tech error on our side. Your payment will be cancelled.', 'leyka'), __('Donation sum is unmatched', 'leyka'));
         } elseif ($donation->status != 'funded') {
             error_log_yandex_phyz("Donation is funded\n");
             if (!empty($_POST['notification_type'])) {
                 // Update a donation's actual PM, if needed
                 $actual_pm = $_POST['notification_type'] == 'card-incoming' ? 'yandex_phyz_card' : 'yandex_phyz_money';
                 if ($donation->pm_id != $_POST['notification_type']) {
                     $donation->pm_id = $actual_pm;
                 }
             }
             $donation->add_gateway_response($_POST);
             $donation->status = 'funded';
             Leyka_Donation_Management::send_all_emails($donation->id);
         } else {
             error_log_yandex_phyz("Already funded\n");
         }
         $this->_check_order_answer();
     } else {
         error_log_yandex_phyz("There is no donation in Leyka DB\n");
         $this->_check_order_answer(1, __('Sorry, there is some tech error on our side. Your payment will be cancelled.', 'leyka'), __('Unregistered donation ID', 'leyka'));
     }
 }

         $locale = 'en_US';
     }
     load_textdomain('leyka', LEYKA_PLUGIN_DIR . "lang/leyka-{$locale}.mo");
     do_action('leyka_init_actions');
 } else {
     //            $locale = is_admin() ? pll_default_language('locale') : pll_current_language('locale');
     if (is_admin() && !did_action('leyka_init_actions')) {
         do_action('leyka_init_actions');
         if (count(pll_languages_list()) > 1) {
             // Register user-defined strings:
             foreach (leyka_options()->get_options_names() as $option) {
                 $option_data = leyka_options()->get_info_of($option);
                 if ($option_data['type'] == 'text') {
                     pll_register_string($option_data['title'], $option_data['value'], 'leyka');
                 } elseif ($option_data['type'] == 'textarea' || $option_data['type'] == 'html' || $option_data['type'] == 'rich_html') {
                     pll_register_string($option_data['title'], leyka_options()->opt($option), 'leyka', true);
                 }
             }
         }
     }
     add_action('leyka_default_success_page_created', function ($page_id) {
         //                echo '<pre>' . print_r($page_id, 1) . '</pre>';
         //                die('<pre>' . print_r(pll_default_language(), 1) . '</pre>');
         // ... get localized strings from PL and update success page params
     });
     // leyka_donation post type must not be included - there's no need to translate it:
     $leyka_post_types = array(Leyka_Campaign_Management::$post_type);
     if ($leyka_post_types != $polylang->options['post_types']) {
         $polylang->options['post_types'] = $polylang->options['post_types'] + $leyka_post_types;
         update_option('polylang', $polylang->options);
     }

	</div>
	
</form>
</div>
</div>
<?php 
}
//add agree modal to footer
add_action('wp_footer', function () {
    ?>
<div id="leyka-agree-text" class="leyka-oferta-text leyka-custom-modal">
	<div class="leyka-modal-close">		
			<?php 
    echo tst_material_icon('close');
    ?>
		
	</div>
	<div class="leyka-oferta-text-frame">
		<div class="leyka-oferta-text-flow">
			<?php 
    echo apply_filters('leyka_terms_of_service_text', leyka_options()->opt('terms_of_service_text'));
    ?>
		</div>
	</div>
</div>
<?php 
});
leyka_pf_footer();
?>

</div><!-- #leyka-payment-form -->

        foreach ($icons as $i) {
            $list[] = "<li>{$i}</li>";
        }
        echo '<ul class="leyka-pm-icons cf">' . implode('', $list) . '</ul>';
    }
    ?>

	</div> <!-- .leyka-pm-fields -->	

<?php 
    echo "<div class='leyka-pm-desc'>" . apply_filters('leyka_the_content', leyka_pf_get_pm_description()) . "</div>";
    ?>


</form>
</div>
</div>
<?php 
}
?>


<?php 
if (leyka_options()->opt('show_campaign_sharing')) {
    leyka_share_campaign_block();
}
leyka_pf_footer();
?>


</div><!-- #leyka-payment-form -->

    /** Wrapper method to answer checkOrder and paymentAviso service calls */
    private function _callback_answer($is_error = false, $callback_type = 'co', $message = '', $tech_message = '')
    {
        $is_error = !!$is_error;
        $tech_message = $tech_message ? $tech_message : $message;
        $callback_type = $callback_type == 'co' ? 'checkOrderResponse' : 'paymentAvisoResponse';
        if ($is_error) {
            die('<?xml version="1.0" encoding="UTF-8"?>
<' . $callback_type . ' performedDatetime="' . date(DATE_ATOM) . '"
code="1000" invoiceId="' . $_POST['invoiceId'] . '"
shopId="' . leyka_options()->opt('yandex_shop_id') . '"
message="' . $message . '"
techMessage="' . $tech_message . '"/>');
        }
        die('<?xml version="1.0" encoding="UTF-8"?>
<' . $callback_type . ' performedDatetime="' . date(DATE_ATOM) . '"
code="0" invoiceId="' . $_POST['invoiceId'] . '"
shopId="' . leyka_options()->opt('yandex_shop_id') . '"/>');
    }

    /** Displaying settings **/
    public function settings_screen()
    {
        /* Capability test */
        if (!current_user_can('leyka_manage_options')) {
            wp_die(__('You do not have permissions to access this page.', 'leyka'));
        }
        $current_stage = $this->get_current_settings_tab();
        require LEYKA_PLUGIN_DIR . 'inc/settings-pages/leyka-settings-common.php';
        /* Page actions */
        do_action('leyka_pre_settings_actions', $current_stage);
        /** Process settings change */
        if (!empty($_POST["leyka_settings_{$current_stage}_submit"])) {
            do_action("leyka_settings_{$current_stage}_submit", $current_stage);
        }
        ?>


		<div class="wrap">

		<h2 class="nav-tab-wrapper"><?php 
        echo $this->settings_tabs_menu();
        ?>
</h2>

		<div id="tab-container">
			<form method="post" action="<?php 
        echo admin_url(add_query_arg('stage', $current_stage, 'admin.php?page=leyka_settings'));
        ?>
" id="leyka-settings-form">

            <?php 
        wp_nonce_field("leyka_settings_{$current_stage}", '_leyka_nonce');
        if (file_exists(LEYKA_PLUGIN_DIR . "inc/settings-pages/leyka-settings-{$current_stage}.php")) {
            require LEYKA_PLUGIN_DIR . "inc/settings-pages/leyka-settings-{$current_stage}.php";
        } else {
            do_action("leyka_settings_pre_{$current_stage}_fields");
            foreach (leyka_opt_alloc()->get_tab_options($current_stage) as $option) {
                // Render each option/section
                if (is_array($option) && !empty($option['section'])) {
                    do_action('leyka_render_section', $option['section']);
                } else {
                    // is this case possible?
                    $option_info = leyka_options()->get_info_of($option);
                    do_action("leyka_render_{$option_info['type']}", $option, $option_info);
                }
            }
            do_action("leyka_settings_post_{$current_stage}_fields");
            ?>


                <p class="submit">
                    <input type="submit" name="<?php 
            echo "leyka_settings_{$current_stage}";
            ?>
_submit" value="<?php 
            _e('Save settings', 'leyka');
            ?>
" class="button-primary" />
                </p>
            <?php 
        }
        ?>


			</form>
<!--            --><?php 
        //do_action("leyka_settings_post_{$current_stage}_form");
        ?>

		</div>

		</div><!-- close .wrap -->
	<?php 
    }

function leyka_is_min_payment_settings_complete()
{
    $pm_list = leyka_get_pm_list(true);
    if (!$pm_list) {
        return false;
    }
    $gateway_options_valid = array();
    // Array of already validated gateways
    foreach ($pm_list as $pm) {
        /** @var $pm Leyka_Payment_Method */
        $gateway = leyka_get_gateway_by_id($pm->gateway_id);
        if (!$pm || !$gateway) {
            continue;
        }
        $min_settings_complete = true;
        foreach ($pm->get_pm_options_names() as $option_name) {
            if (!leyka_options()->is_valid($option_name)) {
                $min_settings_complete = false;
                break;
            }
        }
        if (!isset($gateway_options_valid[$gateway->id])) {
            foreach ($gateway->get_options_names() as $option_name) {
                if (!leyka_options()->is_valid($option_name)) {
                    $gateway_options_valid[$gateway->id] = false;
                    break;
                }
            }
            if (!isset($gateway_options_valid[$gateway->id])) {
                $gateway_options_valid[$gateway->id] = true;
            }
        }
        if ($min_settings_complete && !empty($gateway_options_valid[$gateway->id])) {
            return true;
        }
    }
    return false;
}

 /**
  * Fired when the plugin is activated or when an update is needed.
  */
 public static function activate()
 {
     $leyka_last_ver = get_option('leyka_last_ver');
     if ($leyka_last_ver && $leyka_last_ver == LEYKA_VERSION) {
         // Already at last version
         return;
     }
     if (!$leyka_last_ver || $leyka_last_ver < '2.1') {
         /** Upgrade options structure in the DB */
         if (get_option('leyka_modules')) {
             delete_option('leyka_modules');
         }
         if (get_option('leyka_options_installed')) {
             delete_option('leyka_options_installed');
         }
         require_once LEYKA_PLUGIN_DIR . 'inc/leyka-options-meta.php';
         foreach (leyka_options()->get_options_names() as $name) {
             $option = get_option("leyka_{$name}");
             if (is_array($option) && isset($option['type']) && isset($option['title'])) {
                 // Update option data
                 update_option("leyka_{$name}", $option['value']);
             }
         }
         // Mostly to initialize gateways' and PM's options before updating them:
         //            if( !did_action('leyka_init_actions') )
         //                do_action('leyka_init_actions');
         /** Upgrade gateway and PM options structure in the DB */
         foreach (leyka_get_gateways() as $gateway) {
             /** @var $gateway Leyka_Gateway */
             delete_option("leyka_{$gateway->id}_payment_methods");
             foreach ($gateway->get_options_names() as $name) {
                 $option = get_option("leyka_{$name}");
                 if (is_array($option) && isset($option['type']) && isset($option['title'])) {
                     // Update option data
                     update_option("leyka_{$name}", $option['value']);
                 }
             }
             foreach ($gateway->get_payment_methods() as $pm) {
                 /** @var $pm Leyka_Payment_Method */
                 foreach ($pm->get_pm_options_names() as $name) {
                     $option = get_option("leyka_{$name}");
                     if (is_array($option) && isset($option['type']) && isset($option['title'])) {
                         // Update option data
                         update_option("leyka_{$name}", $option['value']);
                     }
                 }
             }
         }
     }
     if (!$leyka_last_ver || $leyka_last_ver <= '2.2.5') {
         // Initialize pm_order option if needed:
         if (!get_option('leyka_pm_order')) {
             $pm_order = array();
             foreach ((array) get_option('leyka_pm_available') as $pm_full_id) {
                 if ($pm_full_id) {
                     $pm_order[] = "pm_order[]={$pm_full_id}";
                 }
             }
             update_option('leyka_pm_order', implode('&', $pm_order));
         }
         // Remove an unneeded scripts for settings pages:
         $settings_pages_dir = dir(LEYKA_PLUGIN_DIR . 'inc/settings-pages/');
         while (false !== ($script = $settings_pages_dir->read())) {
             if ($script != '.' && $script != '..' && !in_array($script, array('leyka-settings-common.php', 'leyka-settings-payment.php'))) {
                 unlink(LEYKA_PLUGIN_DIR . 'inc/settings-pages/' . $script);
             }
         }
         $settings_pages_dir->close();
         // Remove an obsolete plugin options:
         $options = array(array('old' => 'chronopay_card_description', 'new' => 'chronopay-chronopay_card_description'), array('old' => 'chronopay_card_rebill_description', 'new' => 'chronopay-chronopay_card_rebill_description'), array('old' => 'bank_order_description', 'new' => 'quittance-bank_order_description'), array('old' => 'bankcard_description', 'new' => 'rbk-bankcard_description'), array('old' => 'rbkmoney_description', 'new' => 'rbk-rbkmoney_description'), array('old' => 'rbk_all_description', 'new' => 'rbk-rbk_all_description'), array('old' => 'robokassa_card_description', 'new' => 'robokassa-BANKOCEAN2_description'), array('old' => 'robokassa_yandex_money_description', 'new' => 'robokassa-YandexMerchantOcean_description'), array('old' => 'robokassa_webmoney_description', 'new' => 'robokassa-WMR_description'), array('old' => 'robokassa_qiwi_description', 'new' => 'robokassa-Qiwi30Ocean_description'), array('old' => 'robokassa_all_description', 'new' => 'robokassa-Other_description'), array('old' => 'text_box_description', 'new' => 'text-text_box_description'), array('old' => 'yandex_card_description', 'new' => 'yandex-yandex_card_description'), array('old' => 'yandex_money_description', 'new' => 'yandex-yandex_money_description'), array('old' => 'yandex_wm_description', 'new' => 'yandex-yandex_wm_description'), array('old' => 'yandex_phyz_card_description', 'new' => 'yandex_phyz-yandex_phyz_card_description'), array('old' => 'yandex_phyz_money_description', 'new' => 'yandex_phyz-yandex_phyz_money_description'));
         foreach ($options as $option) {
             $old_value = get_option("leyka_{$option['old']}");
             $new_value = get_option("leyka_{$option['new']}");
             if ($old_value && $old_value != $new_value) {
                 update_option("leyka_{$option['new']}", $old_value);
             }
             delete_option("leyka_{$option['old']}");
         }
     }
     /**
      * Fix the bug when total_funded amount of campaign was calculated incorrectly
      * if there were correctional donations for that campaign.
      */
     if ($leyka_last_ver && $leyka_last_ver >= '2.2.5' && $leyka_last_ver <= '2.2.7.2') {
         function leyka_update_campaigns_total_funded()
         {
             set_time_limit(3600);
             wp_suspend_cache_addition(true);
             $campaigns = get_posts(array('post_type' => Leyka_Campaign_Management::$post_type, 'nopaging' => true, 'post_status' => 'any'));
             foreach ($campaigns as $campaign) {
                 $campaign = new Leyka_Campaign($campaign);
                 $campaign->update_total_funded_amount();
             }
             wp_suspend_cache_addition(false);
         }
         add_action('init', 'leyka_update_campaigns_total_funded', 100);
     }
//.........这里部分代码省略.........

 protected function _set_dynamic_attributes()
 {
     $this->_custom_fields = array('box_details' => apply_filters('leyka_the_content', leyka_options()->opt_safe('text_box_details')));
 }

function leyka_do_donations_export()
{
    if (empty($_GET['leyka-donations-export-csv-excel'])) {
        return;
    }
    // Just in case that export will require some time:
    ini_set('max_execution_time', 99999);
    set_time_limit(99999);
    ob_start();
    $meta_query = array('relation' => 'AND');
    if (!empty($_GET['campaign'])) {
        $meta_query[] = array('key' => 'leyka_campaign_id', 'value' => (int) $_GET['campaign']);
    }
    if (!empty($_GET['payment_type'])) {
        $meta_query[] = array('key' => 'leyka_payment_type', 'value' => $_GET['payment_type']);
    }
    if (!empty($_GET['gateway_pm'])) {
        if (strpos($_GET['gateway_pm'], 'gateway__') !== false) {
            $meta_query[] = array('key' => 'leyka_gateway', 'value' => str_replace('gateway__', '', $_GET['gateway_pm']));
        } elseif (strpos($_GET['gateway_pm'], 'pm__') !== false) {
            $meta_query[] = array('key' => 'leyka_payment_method', 'value' => str_replace('pm__', '', $_GET['gateway_pm']));
        }
    }
    $args = array('post_type' => Leyka_Donation_Management::$post_type, 'post_status' => isset($_GET['post_status']) && in_array($_GET['post_status'], array_keys(leyka()->get_donation_statuses())) ? $_GET['post_status'] : 'any', 'm' => $_GET['month-year'], 'meta_query' => $meta_query, 'posts_per_page' => 200);
    $donations = new WP_Query(apply_filters('leyka_donations_export_query_args', $args));
    $total_pages = $donations->found_posts / 200;
    $total_pages = $total_pages - (int) $total_pages > 0 ? (int) $total_pages + 1 : $total_pages;
    $posts_page = $total_pages > 0 ? 1 : 0;
    $donations = $donations->get_posts();
    require_once LEYKA_PLUGIN_DIR . 'inc/excel-writer/SimpleExcel.php';
    $excel = new SimpleExcel('csv');
    $domain = str_replace(array('http:', 'https:'), '', home_url());
    function prep($text)
    {
        return '"' . str_replace(array(';', '"'), array('', ''), $text) . '"';
    }
    if (isset($_GET['export-tech'])) {
        // Technical export mode column headings
        $excel->writer->addRow(array('hash', 'Domain', 'Org_name', 'Timestamp', 'Date', 'Email_hash', 'Donor_name hash', 'Sum', 'Currency', 'Gateway_pm', 'Donation_status', 'Campaign_title', 'Campaign_URL', 'Payment_title', 'Target_sum', 'Campaign_target_state', 'Campaign_is_finished'));
    } else {
        // Normal export mode column headings
        $excel->writer->addRow(array(apply_filters('leyka_donations_export_headers', array('ID', 'Имя донора', 'Email', 'Тип платежа', 'Способ платежа', 'Сумма', 'Дата пожертвования', 'Статус', 'Кампания'))));
    }
    while ($posts_page && $posts_page <= $total_pages) {
        // Main loop too fill the export file
        foreach ($donations as $donation) {
            $donation = new Leyka_Donation($donation);
            $campaign = new Leyka_Campaign($donation->campaign_id);
            if (isset($_GET['export-tech'])) {
                $excel->writer->addRow(array(prep(wp_hash($domain . $donation->date_timestamp . $donation->sum . $donation->id)), prep($domain), prep(leyka_options()->opt('org_full_name')), prep($donation->date_timestamp), prep(date(get_option('date_format') . ', H:i', $donation->date_timestamp)), prep(wp_hash($donation->donor_email)), prep(wp_hash($donation->donor_name)), prep((int) $donation->sum), prep($donation->currency), $donation->payment_type == 'correction' ? prep($donation->pm_id) : prep($donation->gateway_label . '-' . $donation->pm_id), prep($donation->status), prep($campaign->title), prep($campaign->url), prep($campaign->payment_title), prep((int) $campaign->target), prep($campaign->target_state), prep((int) $campaign->is_finished)));
            } else {
                $excel->writer->addRow(apply_filters('leyka_donations_export_line', array($donation->id, $donation->donor_name, $donation->donor_email, $donation->payment_type_label, $donation->payment_method_label, $donation->sum . ' ' . $donation->currency_label, $donation->date, $donation->status_label, $campaign->title)));
            }
        }
        $posts_page++;
        $args['paged'] = $posts_page;
        $donations = get_posts(apply_filters('leyka_donations_export_query_args', $args));
        wp_cache_flush();
    }
    if (isset($_GET['export-tech'])) {
        $excel->writer->setDelimiter(';');
        ob_clean();
        header('Content-type: application/vnd.ms-excel');
        header('Content-Transfer-Encoding: binary');
        header('Expires: 0');
        header('Pragma: no-cache');
        header('Content-Disposition: attachment; filename="donations-tech-' . $domain . '-' . date('d.m.Y-H.i.s') . '.csv"');
        die(iconv('UTF-8', apply_filters('leyka_donations_export_content_charset', 'windows-1251'), "sep=;\n" . $excel->writer->saveString()));
        //        ob_clean();
        //
        //        header('Content-type: application/vnd.ms-excel');
        //        header('Content-Transfer-Encoding: binary');
        //        header('Expires: 0');
        //        header('Pragma: no-cache');
        //        header('Content-Disposition: attachment; filename="donations-tech-'.$domain.'-'.date('d.m.Y-H.i.s').'.csv"');
        //
        //        die("sep=;\n".implode("\r\n", $file_lines));
    } else {
        $excel->writer->setDelimiter(',');
        ob_clean();
        header('Content-type: application/vnd.ms-excel');
        header('Content-Transfer-Encoding: binary');
        header('Expires: 0');
        header('Pragma: no-cache');
        header('Content-Disposition: attachment; filename="donations-' . date('d.m.Y-H.i.s') . '.csv"');
        die(iconv('UTF-8', apply_filters('leyka_donations_export_content_charset', 'windows-1251'), "sep=,\n" . $excel->writer->saveString()));
    }
}

function leyka_get_terms_text()
{
    return apply_filters('leyka_terms_of_service_text', leyka_options()->opt('terms_of_service_text'));
}

function leyka_min_payment_settings_complete()
{
    $pm_list = leyka_get_pm_list(true);
    if (!$pm_list) {
        return false;
    }
    $gateway_options_valid = array();
    // Array of already validated gateways
    foreach (leyka_options()->opt('pm_available') as $pm_full_id) {
        // Full ID is "gateway_id-pm_id"
        $pm = leyka_get_pm_by_id($pm_full_id, true);
        $pm_full_id = explode('-', $pm_full_id);
        $gateway = leyka_get_gateway_by_id(reset($pm_full_id));
        if (!$pm || !$gateway) {
            return false;
        }
        foreach ($pm->get_pm_options_names() as $option_name) {
            if (!leyka_options()->is_valid($option_name)) {
                return false;
            }
        }
        if (empty($gateway_options_valid[$gateway->id])) {
            foreach ($gateway->get_options_names() as $option_name) {
                if (!leyka_options()->is_valid($option_name)) {
                    return false;
                }
            }
            $gateway_options_valid[$gateway->id] = true;
        }
    }
    return true;
}

 public function __get($field)
 {
     switch ($field) {
         case 'id':
         case 'ID':
             return $this->_id;
         case 'title':
         case 'name':
             return $this->_post_object->post_title;
         case 'purpose':
         case 'purpose_text':
         case 'payment_title':
         case 'campaign_payment_title':
             return $this->_donation_meta['payment_title'];
         case 'status':
             return $this->_post_object->post_status;
         case 'status_label':
             $stati = leyka_get_donation_status_list();
             return $stati[$this->_post_object->post_status];
         case 'status_log':
             return $this->_donation_meta['status_log'];
         case 'date':
         case 'date_label':
             $date_format = get_option('date_format');
             $time_format = get_option('time_format');
             $donation_timestamp = strtotime($this->_post_object->post_date);
             return apply_filters('leyka_admin_donation_date', date($date_format . ' ' . $time_format, $donation_timestamp), $donation_timestamp, $date_format, $time_format);
         case 'date_timestamp':
             return strtotime($this->_post_object->post_date);
         case 'date_funded':
         case 'funded_date':
             $date_funded = $this->get_funded_date();
             return $date_funded ? date(get_option('date_format'), $date_funded) : 0;
         case 'payment_method':
         case 'payment_method_id':
         case 'pm':
         case 'pm_id':
             return $this->_donation_meta['payment_method'];
         case 'gateway':
         case 'gateway_id':
         case 'gw_id':
             return $this->_donation_meta['gateway'];
         case 'gateway_label':
             $gateway = leyka_get_gateway_by_id($this->_donation_meta['gateway']);
             return $gateway ? $gateway->label : __('Unknown gateway', 'leyka');
         case 'pm_label':
         case 'payment_method_label':
             $pm = leyka_get_pm_by_id($this->_donation_meta['payment_method']);
             return $pm ? $pm->label : __('Unknown payment method', 'leyka');
         case 'currency':
             return $this->_donation_meta['currency'];
         case 'currency_label':
             return leyka_options()->opt('leyka_currency_' . $this->_donation_meta['currency'] . '_label');
         case 'sum':
         case 'amount':
             return $this->_donation_meta['amount'];
         case 'main_curr_amount':
         case 'amount_equiv':
             return $this->_donation_meta['main_curr_amount'];
         case 'donor_name':
             return $this->_donation_meta['donor_name'];
         case 'donor_email':
             return $this->_donation_meta['donor_email'];
         case 'donor_email_date':
             return $this->_donation_meta['donor_email_date'];
         case 'managers_emails_date':
             return $this->_donation_meta['managers_emails_date'];
         case 'campaign_id':
             return $this->_donation_meta['campaign_id'];
         case 'gateway_response':
             return $this->_donation_meta['gateway_response'];
         case 'gateway_response_formatted':
             return $this->gateway ? leyka_get_gateway_by_id($this->gateway)->get_gateway_response_formatted($this) : array();
         case 'type':
         case 'payment_type':
             return $this->_donation_meta['payment_type'];
         case 'type_label':
         case 'payment_type_label':
             return __($this->_donation_meta['payment_type'], 'leyka');
         case 'init_recurring_payment_id':
         case 'init_recurring_donation_id':
             return $this->_post_object->post_parent;
         case 'init_recurring_payment':
         case 'init_recurring_donation':
             return $this->_post_object->post_parent ? new Leyka_Donation($this->_post_object->post_parent) : false;
         default:
             return apply_filters('leyka_get_unknown_donation_field', null, $field, $this);
     }
 }