<?php

class Qs_Options
{
    public static function setOptions($object, $options)
    {
        if (!is_object($object)) {
            return null;
        }
        if ($options instanceof Zend_Config) {
            $options = $options->toArray();
        }
        if (isset($options['options'])) {
            unset($options['options']);
        }

        $unknownOptions = [];
        foreach ((array) $options as $key => $value) {
            $method = 'set' . self::_normalizeKey($key);
            if (method_exists($object, $method)) {
                $object->$method($value);
            } else {
                $unknownOptions[$key] = $value;
            }
        }
        return $unknownOptions;
    }

    public static function getConstructorOptions($object)
    {
        $config = Qs_Config::getByInstance($object);
        /** @var $constructorOptions Zend_Config */
        /** @var $options Zend_Config */
        if (null !== ($constructorOptions = $config->get('__constructorOptions'))
            && null !== ($options = $constructorOptions->get(get_class($object)))
        ) {
            return $options->toArray();
        }
        return [];
    }

    public static function mergeConstructorOptions($object, $options = [])
    {
        /** @var $options Zend_Config */
        if ($options instanceof Zend_Config) {
            $options = $options->toArray();
        }
        return Qs_Array::mergeRecursive($options, self::getConstructorOptions($object));
    }

    public static function setConstructorOptions($object, $options = [])
    {
        self::setOptions($object, self::mergeConstructorOptions($object, $options));
    }

    protected static function _normalizeKey($key)
    {
        $option = str_replace('_', ' ', strtolower($key));
        $option = str_replace(' ', '', ucwords($option));
        return $option;
    }
}