<?php

namespace Models;

class Validator {

    private $_data = array();
    private $_rules = array();
    private $_errors = array();
    private $_regexes = Array(
        'date' => "^[0-9]{4}[-/][0-9]{1,2}[-/][0-9]{1,2}\$",
        'amount' => "^[-]?[0-9]+\$",
        'number' => "^[-]?[0-9,]+\$",
        'alfanum' => "^[0-9a-zA-Z ,.-_\\s\?\!]+\$",
        'not_empty' => "[a-z0-9A-Z]+",
        'words' => "^[A-Za-z]+[A-Za-z \\s]*\$",
        'phone' => "^[0-9]{10,11}\$",
        'zipcode' => "^[1-9][0-9]{3}[a-zA-Z]{2}\$",
        'plate' => "^([0-9a-zA-Z]{2}[-]){2}[0-9a-zA-Z]{2}\$",
        'price' => "^[0-9.,]*(([.,][-])|([.,][0-9]{2}))?\$",
        '2digitopt' => "^\d+(\,\d{2})?\$",
        '2digitforce' => "^\d+\,\d\d\$",
        'anything' => "^[\d\D]{1,}\$"
    );

    function __construct() {

    }

    public function setData($params) {
        $this->_data = $params;
        return $this;
    }

    public function setRules($field, $type, $param = NULL) {
        $this->_rules[$field][] = array('type' => $type, 'param' => $param);
        return $this;
    }

    public function validate() {

        foreach ($this->_rules as $field => $rules) {
            foreach ($rules as $rule) {
                $this->$rule['type']($field, $rule['param']);
            }
        }
        return $this;
    }

    private function min_len($field, $params) {

        if (mb_strlen($this->_data[$field]) >= $params) {
            return true;
        } else {
            $this->_errors[$field]['min_len'] = TRUE;
            return false;
        }
    }

    private function max_len($field, $params) {
        if (mb_strlen($this->_data[$field]) <= $params) {
            return true;
        } else {
            $this->_errors[$field]['max_len'] = TRUE;
            return false;
        }
    }

    private function required($field) {

        if ($this->_data[$field] == '') {
            $this->_errors[$field]['required'] = TRUE;
            return FALSE;
        }
        return TRUE;
    }

    private function is_valid_email($field) {

        if (filter_var($this->_data[$field], FILTER_VALIDATE_EMAIL) === false) {
            $this->_errors[$field]['is_valid_email'] = TRUE;
            return FALSE;
        }
        return TRUE;
    }

    private function match($field, $params) {
        if ($this->_data[$field] != $this->_data[$params]) {
            $this->_errors[$field]['match'] = TRUE;
            return FALSE;
        }
        return TRUE;
    }

    private function is_array_($field) {

        if (isset($this->_data[$field]) && is_array($this->_data[$field])) {
            return TRUE;
        }
        $this->_errors[$field]['is_array_'] = TRUE;
        return false;
    }

    private function required_array($field) {
        if (isset($this->_data[$field]) && !empty($this->_data[$field])) {
            return TRUE;
        }
        $this->_errors[$field]['required_array'] = TRUE;
        return false;
    }

    public function getErrors() {
        return $this->_errors;
    }

}