<?php
namespace Sodino\Repositories;

use Sodino\Models\Banner;

/**
 * Banner Repository
 */
class BannerRepository {
    private $table_name;

    public function __construct() {
        global $wpdb;
        $this->table_name = $wpdb->prefix . 'sodino_banners';
    }

    public function getAll() {
        global $wpdb;
        $results = $wpdb->get_results("SELECT * FROM {$this->table_name} ORDER BY priority DESC, id ASC", ARRAY_A);
        $banners = [];
        foreach ($results as $result) {
            $banners[] = new Banner($result);
        }
        return $banners;
    }

    public function getById($id) {
        global $wpdb;
        $result = $wpdb->get_row($wpdb->prepare("SELECT * FROM {$this->table_name} WHERE id = %d", $id), ARRAY_A);
        return $result ? new Banner($result) : null;
    }

    public function getEnabled() {
        global $wpdb;
        $results = $wpdb->get_results("SELECT * FROM {$this->table_name} WHERE status = 1 ORDER BY priority DESC, id ASC", ARRAY_A);
        $banners = [];
        foreach ($results as $result) {
            $banners[] = new Banner($result);
        }
        return $banners;
    }

    public function save(Banner $banner) {
        global $wpdb;
        $data = $banner->toArray();
        unset($data['id'], $data['created_at']);

        if ($banner->id) {
            $result = $wpdb->update($this->table_name, $data, ['id' => $banner->id]);
            if ($result === false) {
                return false;
            }

            $this->clearCache();
            return $banner->id;
        }

        $result = $wpdb->insert($this->table_name, $data);
        if ($result === false) {
            return false;
        }

        $this->clearCache();
        return $wpdb->insert_id;
    }

    public function delete($id) {
        global $wpdb;
        $result = $wpdb->delete($this->table_name, ['id' => $id]);
        $this->clearCache();
        return $result;
    }

    public function incrementImpression($id) {
        global $wpdb;
        $wpdb->query($wpdb->prepare("UPDATE {$this->table_name} SET impressions = impressions + 1 WHERE id = %d", $id));
        $this->clearCache();
    }

    public function incrementClick($id) {
        global $wpdb;
        $wpdb->query($wpdb->prepare("UPDATE {$this->table_name} SET clicks = clicks + 1 WHERE id = %d", $id));
        $this->clearCache();
    }

    public function clearCache() {
        $version = microtime(true);
        update_option('sodino_banners_cache_version', $version, false);
        wp_cache_set('version', $version, 'sodino_banners');

        if (function_exists('wp_cache_flush_group')) {
            wp_cache_flush_group('sodino_banners');
        }
    }
}