<?php

namespace BRSystems\Core\Library\cSysConsole;

use BRSystems\Core\Library\cJSON\cJSON;
use BRSystems\Core\Library\cView\cView;

/**
 * System console class - singleton
 * to be modified as Dependency injection
 *
 * @category CMS
 * @author Mareks Keišs <mareks.keiss@brsystems.lv>
 * @since Version 1.0
 */
class cSysConsole
{
    private static $instance = null;
    private $outputLines = array();

    const C_TYPE = 't';
    const C_FUNCTION = 'f';
    const C_LINE_DATA = 'l';
    const C_RESPONSE_DATA = 'r';

    const C_TYPES_JS = 'JS';
    const C_TYPES_PHP = 'PHP';

    private static $vCommands = array(
        'expand_sql' => array(
            self::C_TYPE => 'JS',                    // Type of group JS - javascript handles action
            self::C_FUNCTION => 'expandAllSqlQueries'    // Javascript call function
        ),
        'collapse_sql' => array(
            self::C_TYPE => 'JS',                    // Type of group JS - javascript handles action
            self::C_FUNCTION => 'collapseAllSqlQueries'  // Javascript call function
        ),
        'math' => array(
            self::C_TYPE => 'PHP',                   // Type of group PHP - php script handles action
            self::C_FUNCTION => 'parseBaseMathProblem'   // php call function
        ),
    );
    public function __construct(){

    }

    public static function getInstance(){

        // Singleton initiation
        if (self::$instance == null) {
            self::$instance = new self();
        }
        return self::$instance;

    }

    /**
     * Function to add output line
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category CMS
     * @param array $lineData - line data to show
     * @param string $type - line type
     * @return void
     */
    public function addOutputLine($lineData = array(), $type = ''){

        if(!!$lineData){
            $microTime = explode(' ', microtime());
            $microTime[0] *= 1000000;
            $this->outputLines[] = array(
                't' => "{$microTime[0]}:{$microTime[1]}",
                'd' => $lineData,
                'c' => $type
            );
        }
    }

    /**
     * Function to get output line data
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category CMS
     * @return array - new line data
     */
    public function getLineData(){

        if(!!$this->outputLines){
            foreach($this->outputLines as &$v){
                // Format each line
                $v['t'] = explode(':', $v['t']);
                $v['t'] = date('H:i:s', $v['t'][1]) . " {$v['t'][0]}";
            }
        }

        return $this->outputLines;

    }
    public function p(){

        pr($this->outputLines);

    }

    /**
     * Function to handle console command & send answers
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category CMS
     * @return array - new line data
     */
    public function handleConsoleCommand($sCommand){

        if(isset(self::$vCommands[$sCommand])){
            $c = self::$vCommands[$sCommand];

            $oView = new cView($this);

            if($c[self::C_TYPE] == self::C_TYPES_JS){
                if(!empty($c[self::C_FUNCTION])){

                    $this->addOutputLine(array(
                        "{$c[self::C_TYPE]} : {$sCommand} - calling custom js function '{$c[self::C_FUNCTION]}'"
                    ));
                    $oView->CONSOLE_DATA = $this->getLineData();
                    cJSON::sendOk(array(self::C_TYPE => $c[self::C_TYPE], self::C_FUNCTION => $c[self::C_FUNCTION], self::C_LINE_DATA => $oView->genHelperView('console/console-line.tpl')));

                }
            }
        }

        return $this->outputLines;

    }
}