<?php

namespace Twine\system;

use PrintMyBlog\compatibility\DetectAndActivate;

/**
 * Class Init
 * @package Twine\system
 */
abstract class Init
{

    /**
     * @var Context
     */
    protected $context;
    /**
     * @return Context
     */
    abstract protected function initContext();

    /**
     * Sets hooks for later
     */
    public function setHooks()
    {
        add_action('plugins_loaded', array($this, 'pluginsLoaded'));
    }

    /**
     * Setup once all plugins are loaded
     */
    public function pluginsLoaded()
    {
        // prevent loading any PMB until they've ever registered or opted-out of Freemius.
        $this->context = $this->initContext();
        add_action('init', array($this, 'earlyInit'), 5);
        add_action('init', array($this, 'init'));
    }

    /**
     * Sets up PMB's general environment.
     */
    public function earlyInit()
    {
    }

    /**
     * Sets up PMB's code that will will set other hooks
     */
    public function init()
    {
        $this->includes();
        $this->initRequest();
        $this->registerStuff();
        $this->setupDbEnvironment();
        $this->takeActionOnIncomingRequest();
    }

    /**
     * Good place to include non-autoloaded files, like "template tags"
     */
    abstract protected function includes();

    /**
     * Makes use of your context's 'Twine\system\RequestType' and 'Twine\system\VersionHistory'
     * to figure out the type of request and record the version history
     */
    protected function initRequest()
    {
        /**
         * @var $request_type RequestType
         */
        $request_type = $this->context->reuse('Twine\system\RequestType');
        $request_type->getRequestType();

        /**
         * @var $version_history VersionHistory
         */
        $version_history = $this->context->reuse('Twine\system\VersionHistory');
        $version_history->maybeRecordVersionChange();
    }

    /**
     * Good place to register custom post types and the like
     */
    abstract protected function registerStuff();

    /**
     * Good place to detect if there's an activation and setup the DB
     */
    abstract protected function setupDbEnvironment();

    /**
     * This is where you can actually do something based on the
     * request. Eg, process the request, do business logic, start
     * thinking about a response
     */
    abstract protected function takeActionOnIncomingRequest();

    /**
     * Right place to use plugin_dir_url() to get the
     * URLs to any URLs of your site
     */
    abstract protected function setUrls();
}