<?php

namespace Model;

use Lib\Abstract_model;
use Lib\Validator;

class Contact extends Abstract_model
{

    private static $table = 'contact';

    private static $grid_fields = array('id', 'name', 'email', 'phone', 'created_on', 'updated_on');

    protected static $relationships = array(
        'category' => array(
            'table' => 'contact_to_category',
            'id_field' => 'contact_id',
            'relation_field' => 'category_id',
            'always_load' => true,
            'always_save' => true
        )
    );

    public static function get_table()
    {
        return self::$table;
    }

    public static function get_grid_fields()
    {
        return static::$grid_fields;
    }

    public static function is_invalid(Array $data)
    {
        $errors = array();
        if (!Validator::is_date($data ['created_on'])) {
            $errors ['created_on'] = true;
        }

        if (strlen(trim($data ['name'])) < 1 || strlen(trim($data ['name'])) > 128) {
            $errors ['name'] = true;
        }

        if (!Validator::is_email($data ['email']) || strlen(trim($data ['email'])) < 1) {
            $errors ['email'] = true;
        }

        if (trim(strlen($data ['phone'])) > 0 && !Validator::is_international_phone($data ['phone'])) {
            $errors ['phone'] = true;
        }

        if (Category::count() > 0 && !isset($data['category'])) {
            $errors['category'] = true;
        }
        return count($errors) == 0 ? false : $errors;
    }


}