<?php

namespace Kanboard\Validator;

use SimpleValidator\Validator;
use SimpleValidator\Validators;
use Kanboard\Model\UserModel;

/**
 * User Validator
 *
 * @package  Kanboard\Validator
 * @author   Frederic Guillot
 */
class UserValidator extends BaseValidator
{
    /**
     * Common validation rules
     *
     * @access protected
     * @return array
     */
    protected function commonValidationRules()
    {
        return array(
            new Validators\MaxLength('username', t('The maximum length is %d characters', 191), 191),
            new Validators\Unique('username', t('This username is already taken'), $this->db->getConnection(), UserModel::TABLE, 'id'),
            new Validators\Email('email', t('Email address invalid')),
            new Validators\Integer('is_ldap_user', t('This value must be an integer')),
            new Validators\InArray('theme', array_keys($this->themeModel->getThemes()), t('This theme is invalid')),
            new Validators\InArray('role', array_keys($this->role->getApplicationRoles()), t('This role is invalid')),
            new Validators\Timezone('timezone', t('This timezone is invalid')),
            new Validators\InArray('language', array_keys($this->languageModel->getLanguages()), t('This language is invalid')),
        );
    }

    /**
     * Validate user creation
     *
     * @access public
     * @param  array   $values           Form values
     * @return array   $valid, $errors   [0] = Success or not, [1] = List of errors
     */
    public function validateCreation(array $values)
    {
        $rules = array(
            new Validators\Required('username', t('The username is required')),
        );

        if (isset($values['is_ldap_user']) && $values['is_ldap_user'] == 1) {
            $v = new Validator($values, array_merge($rules, $this->commonValidationRules()));
        } else {
            $v = new Validator($values, array_merge($rules, $this->commonValidationRules(), $this->commonPasswordValidationRules()));
        }

        return array(
            $v->execute(),
            $v->getErrors()
        );
    }

    /**
     * Validate user modification
     *
     * @access public
     * @param  array   $values           Form values
     * @return array   $valid, $errors   [0] = Success or not, [1] = List of errors
     */
    public function validateModification(array $values)
    {
        $rules = array(
            new Validators\Required('id', t('The user id is required')),
            new Validators\Required('username', t('The username is required')),
        );

        $v = new Validator($values, array_merge($rules, $this->commonValidationRules()));

        return array(
            $v->execute(),
            $v->getErrors()
        );
    }

    /**
     * Validate user API modification
     *
     * @access public
     * @param  array   $values           Form values
     * @return array   $valid, $errors   [0] = Success or not, [1] = List of errors
     */
    public function validateApiModification(array $values)
    {
        $rules = array(
            new Validators\Required('id', t('The user id is required')),
        );

        $v = new Validator($values, array_merge($rules, $this->commonValidationRules()));

        return array(
            $v->execute(),
            $v->getErrors()
        );
    }

    /**
     * Validate password modification
     *
     * @access public
     * @param  array   $values           Form values
     * @return array   $valid, $errors   [0] = Success or not, [1] = List of errors
     */
    public function validatePasswordModification(array $values)
    {
        $rules = array(
            new Validators\Required('id', t('The user id is required')),
            new Validators\Required('current_password', t('The current password is required')),
        );

        $v = new Validator($values, array_merge($rules, $this->commonPasswordValidationRules()));

        if ($v->execute()) {
            if (! $this->userSession->isAdmin() && $values['id'] != $this->userSession->getId()) {
                return array(false, array('current_password' => array('Invalid User ID')));
            }

            if ($this->authenticationManager->passwordAuthentication($this->userSession->getUsername(), $values['current_password'], false)) {
                return array(true, array());
            } else {
                return array(false, array('current_password' => array(t('Wrong password'))));
            }
        }

        return array(false, $v->getErrors());
    }
}