<?php namespace ZN\Helpers;
/**
 * ZN PHP Web Framework
 * 
 * "Simplicity is the ultimate sophistication." ~ Da Vinci
 * 
 * @package ZN
 * @license MIT [http://opensource.org/licenses/MIT]
 * @author  Ozan UYKUN [ozan@znframework.com]
 */

use stdClass;
use ZN\Base;
use ZN\Classes;
use ZN\Protection\Json;

class Reflect
{
    /**
     * Keeps Reflection Classes
     * 
     * @var array
     */
    protected $classes = 
    [
        'class', 
        'extension', 
        'function',  
        'method', 
        'object', 
        'parameter', 
        'property'
    ];

    /**
     * Magic Call
     * 
     * @param string $method
     * @param array  $parameters
     * 
     * @return mixed
     */
    public function __call($method, $parameters)
    {
        $lower = strtolower($method);

        if( in_array($lower, $this->classes) )
        {
            return $this->call($parameters, $method);
        }

        return $this->call($parameters)->$method(); // @codeCoverageIgnore
    }
    
    /**
     * Annotation
     * 
     * @param string $class
     * @param string $function = NULL
     * 
     * @return object
     */
    public function annotation(string $class, ?string $function = NULL) : stdClass
    {
        if( strstr($class, '::') )
        {
            $method = explode('::', $class);

            $class    = $method[0];
            $function = $method[1];
        }

        if( $function[0] === '$' )
        {
            $class = $this->property($class, ltrim($function, '$'));
        }
        else
        {
            if( $function === NULL )
            {
                $class = $this->class($class);
            }
            else
            {
                $class = $this->method($class, $function);
            }
        } 
        
        preg_match_all('/@(\w+.*?)\s+(.*?)\s+\*/s', $class->getDocComment() ?? '', $match);

        $keys   = $match[1] ?? [];
        $values = $match[2] ?? [];
    
        $values = array_map(function($data)
        {
            if( Json::check($data) )
            {
                return Json::decodeObject($data);
            }
            elseif( $data[0] === ':' )
            {
                return eval('?><?php return ' . ltrim(Base::suffix($data, ';'), ':'));
            }

            return $data;

        }, $values);

        return (object) array_combine($keys, $values);
    }

    /**
     * Protected Call
     */
    protected function call($parameters, $type = NULL)
    {
        $class = 'Reflection' . $type;

        if( $type === 'class' )
        {
            $parameters[0] = Classes::class($parameters[0]);            
        }

        return (new $class(...$parameters));
    }
}