<?php
/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */

namespace Icinga\Module\Monitoring\Forms\Setup;

use Icinga\Data\ConfigObject;
use Icinga\Forms\Config\Resource\DbResourceForm;
use Icinga\Web\Form;
use Icinga\Module\Monitoring\Forms\Config\BackendConfigForm;

class IdoResourcePage extends Form
{
    /**
     * Initialize this form
     */
    public function init()
    {
        $this->setName('setup_monitoring_ido');
        $this->setTitle($this->translate('Monitoring IDO Resource', 'setup.page.title'));
        $this->addDescription($this->translate(
            'Please fill out the connection details below to access the IDO database of your monitoring environment.'
        ));
    }

    /**
     * Create and add elements to this form
     *
     * @param   array   $formData
     */
    public function createElements(array $formData)
    {
        $this->addElement(
            'hidden',
            'type',
            array(
                'required'  => true,
                'value'     => 'db'
            )
        );

        if (isset($formData['skip_validation']) && $formData['skip_validation']) {
            // In case another error occured and the checkbox was displayed before
            $this->addSkipValidationCheckbox();
        } else {
            $this->addElement(
                'hidden',
                'skip_validation',
                array(
                    'required'  => true,
                    'value'     => 0
                )
            );
        }

        $dbResourceForm = new DbResourceForm();
        $this->addElements($dbResourceForm->createElements($formData)->getElements());
        $this->getElement('name')->setValue('icinga_ido');
    }

    /**
     * Return whether the given values are valid
     *
     * @param   array   $formData   The data to validate
     *
     * @return  bool
     */
    public function isValid($formData)
    {
        if (! parent::isValid($formData)) {
            return false;
        }

        if (! isset($formData['skip_validation']) || !$formData['skip_validation']) {
            $configObject = new ConfigObject($this->getValues());
            if (! DbResourceForm::isValidResource($this, $configObject)) {
                $this->addSkipValidationCheckbox($this->translate(
                    'Check this to not to validate connectivity with the given database server.'
                ));
                return false;
            } elseif (
                ! BackendConfigForm::isValidIdoSchema($this, $configObject)
                || !BackendConfigForm::isValidIdoInstance($this, $configObject)
            ) {
                $this->addSkipValidationCheckbox($this->translate(
                    'Check this to not to validate the IDO schema in the given database.'
                ));
                return false;
            }
        }

        return true;
    }

    /**
     * Add a checkbox to the form by which the user can skip the resource validation
     *
     * @param   string  $description
     */
    protected function addSkipValidationCheckbox($description = null)
    {
        if (empty($description)) {
            $description = $this->translate(
                'Proceed without any further (custom) validation.'
            );
        }

        $this->addElement(
            'checkbox',
            'skip_validation',
            array(
                'required'      => true,
                'label'         => $this->translate('Skip Validation'),
                'description'   => $description
            )
        );
    }
}