<?php
namespace App\CMS\Pipeline\SavePipeline;

use App\CMS\Contracts\Content\SavePipeline\Pipeline;
use App\CMS\Contracts\Content\SavePipeline\Process;
use App\CMS\Pipeline\AbstractPipeline;
use App\Models\Content\Content;

class SavePipeline extends AbstractPipeline implements Pipeline
{
    /**
     * SavePipeline constructor.
     */
    public function __construct()
    {
        $this->acceptedProcessInterface = Process::class;
    }

    /**
     * Save content page
     *
     * @param Content $page
     * @param array   $input
     *
     * @return Content
     */
    function run(Content & $page, array $input)
    {
        $this->runBeforeStart($page, $input);

        foreach ($this->processes as $process) {
            /**
             * @var $run Process
             */
            $run = new $process;
            $run->handle($page, $input);
        }

        $this->runAfter($page, $input);

        return $page;
    }

    /**
     * Run process as first - if specified
     *
     * @param Content $page
     * @param array   $input
     */
    protected function runBeforeStart(Content $page, array $input)
    {
        if (!is_null($this->beforeStart)) {
            app($this->beforeStart)->handle($page, $input);
        }
    }

    /**
     * Run some process in the end - if exists
     *
     * @param Content $page
     * @param array   $input
     */
    protected function runAfter(Content $page, array $input)
    {
        if (!is_null($this->beforeRender)) {
            app($this->beforeRender)->handle($page, $input);
        }
    }
}