<?php

namespace Ladon;

if (!defined('ABSPATH')) {
    exit;
}

final class Plugin
{
    const CRON_HEARTBEAT = 'ladon_heartbeat';
    const CRON_SYNC = 'ladon_sync';
    const ACTIVATION_REDIRECT = 'ladon_activation_redirect';

    /** @var Plugin|null */
    private static $instance = null;

    /** @var Sync */
    public $sync;

    /** @var Connection */
    public $connection;

    /** @var Admin */
    public $admin;

    public static function instance()
    {
        if (self::$instance === null) {
            self::$instance = new self();
        }

        return self::$instance;
    }

    private function __construct()
    {
        $this->sync = new Sync();
        $this->connection = new Connection();
        $this->admin = new Admin($this->connection, $this->sync);
    }

    public function boot()
    {
        $this->sync->register();
        $this->connection->register();

        if (is_admin()) {
            $this->admin->register();
        }
    }

    public static function activate()
    {
        set_transient(self::ACTIVATION_REDIRECT, 1, 60);

        if (!wp_next_scheduled(self::CRON_HEARTBEAT)) {
            wp_schedule_event(time() + HOUR_IN_SECONDS, 'daily', self::CRON_HEARTBEAT);
        }
    }

    public static function deactivate()
    {
        wp_clear_scheduled_hook(self::CRON_HEARTBEAT);
        wp_clear_scheduled_hook(self::CRON_SYNC);
        delete_transient(self::ACTIVATION_REDIRECT);
    }
}