<?php

/**
 * Handles all methods for determining when to send telemetry data.
 *
 * @since 1.0.0
 *
 * @package StellarWP\Telemetry
 */
namespace StellarWP\Learndash\StellarWP\Telemetry\Last_Send;

use DateTimeImmutable;
use StellarWP\Learndash\StellarWP\Telemetry\Config;
/**
 * Handles all methods for determining when to send telemetry data.
 *
 * @since 1.0.0
 *
 * @package \StellarWP\Telemetry
 */
class Last_Send
{
    public const OPTION_NAME = 'stellarwp_telemetry_last_send';
    /**
     * Initially sets the _last_send option in the options table.
     *
     * @since 1.0.0
     *
     * @return void
     */
    public function initialize_option()
    {
        if (get_option(self::OPTION_NAME) === false) {
            update_option(self::OPTION_NAME, '');
        }
    }
    /**
     * Checks whether the last send timestamp is expired or not.
     *
     * If the timestamp is >= 1 week, the last send is expired.
     *
     * @since 1.0.0
     *
     * @return bool
     */
    public function is_expired()
    {
        $last_send = $this->get_timestamp();
        // No timestamp exists, we'll assume that telemetry data needs to be sent.
        if ('' === $last_send) {
            return true;
        }
        /**
         * Filters the amount of seconds the last send timestamp is valid before it expires.
         *
         * @since 1.0.0
         *
         * @param integer $expire_seconds
         */
        $expire_seconds = apply_filters('stellarwp/telemetry/' . Config::get_hook_prefix() . 'last_send_expire_seconds', 7 * DAY_IN_SECONDS);
        $last_run_time = new DateTimeImmutable($last_send);
        $next_run_time = $last_run_time->add(new \DateInterval("PT{$expire_seconds}S"));
        return $next_run_time <= new DateTimeImmutable();
    }
    /**
     * Sets a new timestamp for the last_send option.
     *
     * @param DateTimeImmutable $time The time to use for the timestamp.
     *
     * @return int Number of rows affected.
     */
    public function set_new_timestamp(DateTimeImmutable $time)
    {
        global $wpdb;
        $timestamp = $time->format('Y-m-d H:i:s');
        $option_name = self::OPTION_NAME;
        $current_timestamp = $this->get_timestamp();
        /**
         * Update the timestamp and use the current timestamp to make sure it
         * is only updated a single time.
         */
        $result = $wpdb->update(
            // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
            $wpdb->options,
            ['option_name' => $option_name, 'option_value' => $timestamp],
            ['option_name' => $option_name, 'option_value' => $current_timestamp]
        );
        if (false === $result) {
            return 0;
        }
        return $result;
    }
    /**
     * Queries the database directly to get the timestamp.
     *
     * This avoids any filters being applied than are necessary.
     *
     * @since 1.0.0
     *
     * @return string The timestamp of the last send.
     */
    public function get_timestamp()
    {
        global $wpdb;
        $result = $wpdb->get_var(
            // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
            $wpdb->prepare("SELECT option_value FROM {$wpdb->options} WHERE option_name = %s", self::OPTION_NAME)
        );
        if (is_null($result)) {
            return '';
        }
        return $result;
    }
}