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<?php

/**
 * MvcCore
 *
 * This source file is subject to the BSD 3 License
 * For the full copyright and license information, please view 
 * the LICENSE.md file that are distributed with this source code.
 *
 * @copyright   Copyright (c) 2016 Tom Flídr (https://github.com/mvccore/mvccore)
 * @license     https://mvccore.github.io/docs/mvccore/4.0.0/LICENCE.md
 */

namespace MvcCore\Ext\Form\Validators;

require_once(__DIR__.'/../../Form.php');
require_once(__DIR__.'/../Core/Validator.php');
require_once(__DIR__.'/../Core/Field.php');
require_once(__DIR__.'/../Core/View.php');

use
    MvcCore\Ext\Form,
    MvcCore\Ext\Form\Core;

class NumberField extends Core\Validator
{
    public function Validate ($submitValue, $fieldName, \MvcCore\Ext\Form\Core\Field & $field) {
        $submitValue = trim((string) $submitValue);
        $intValueStr = preg_replace("#[^0-9]#", '', $submitValue);
        $floatValueStr = preg_replace("#[^0-9\.]#", '', str_replace(',','.',$submitValue));
        $errorMsgKeyCommon = '';
        $errorMsgKey = '';
        if (strlen($intValueStr) === 0) {
            if ($field->Required) $errorMsgKey = Form::NUMBER;
            $safeValue = '';
        } else {
            if ($floatValueStr === $intValueStr) {
                $safeValue = intval($intValueStr);
                $errorMsgKeyCommon = Form::INTEGER;
            } else {
                $safeValue = floatval($intValueStr);
                $errorMsgKeyCommon = Form::FLOAT;
            }
            $errorMsgKey = '';
            if (isset($this->Min) && !is_null($field->Min)) {
                if ($safeValue < $field->Min) {
                    $errorMsgKey = !is_null($this->Max) ? Form::RANGE : Form::GREATER;
                }
            }
            if (isset($this->Max) && !is_null($this->Max)) {
                if ($safeValue > $field->Max) {
                    $errorMsgKey = !is_null($this->Min) ? Form::RANGE : Form::LOWER;
                }
            }
            if (isset($this->Pattern) && !is_null($this->Pattern)) {
                preg_match("#^".$this->Pattern."$#", (string)$safeValue, $matches);
                if (!$matches) {
                    $errorMsgKey = $errorMsgKeyCommon;
                }
            }
        }
        if (mb_strlen($safeValue) !== mb_strlen($submitValue) || $errorMsgKey) {
            $errorMsgKey = $errorMsgKey ? $errorMsgKey : $errorMsgKeyCommon ;
            
            $errorReplacements = array();
            if ($errorMsgKey == Form::RANGE) {
                $errorReplacements[] = $field->Min;
                $errorReplacements[] = $field->Max;
            } else if ($errorMsgKey == Form::GREATER) {
                $errorReplacements[] = $field->Min;
            } else if ($errorMsgKey == Form::LOWER) {
                $errorReplacements[] = $field->Max;
            }

            $this->addError(
                $field,
                Form::$DefaultMessages[$errorMsgKey],
                function ($msg, $args) use (& $errorReplacements) {
                    $args = array_merge($args, $errorReplacements);
                    return Core\View::Format($msg, $args);
                }
            );
        }
        return $safeValue;
    }
}