<?php

namespace WP_CLI\Doctor\Check;

use WP_CLI;
use WP_CLI\Doctor\Check;

/**
 * Errors when new WordPress minor release is available; warns for major release.
 */
class Core_Update extends Check {

    public function run() {
        ob_start();
        WP_CLI::run_command( array( 'core', 'check-update' ), array( 'format' => 'json' ) );
        $ret       = ob_get_clean();
        $updates   = ! empty( $ret ) ? json_decode( $ret, true ) : array();
        $has_minor = false;
        $has_major = false;
        foreach ( $updates as $update ) {
            switch ( $update['update_type'] ) {
                case 'minor':
                    $has_minor = true;
                    break;
                case 'major':
                    $has_major = true;
                    break;
            }
        }

        if ( $has_minor ) {
            $this->set_status( 'error' );
            $this->set_message( "Updating to WordPress' newest minor version is strongly recommended." );
        } elseif ( $has_major ) {
            $this->set_status( 'warning' );
            $this->set_message( 'A new major version of WordPress is available for update.' );
        } else {
            $this->set_status( 'success' );
            $this->set_message( 'WordPress is at the latest version.' );
        }
    }
}