<?php
// @codeCoverageIgnoreStart
// {{{ICINGA_LICENSE_HEADER}}}
// {{{ICINGA_LICENSE_HEADER}}}

use Icinga\Web\Session;
use Icinga\Web\Wizard\Page;
use Icinga\Web\Wizard\Wizard;
use Icinga\Web\Controller\ActionController;

class InstallController extends ActionController
{
    /**
     * Whether the controller requires the user to be authenticated
     *
     * The install wizard has its own authentication mechanism.
     *
     * @var bool
     */
    protected $requiresAuthentication = false;

    /**
     * Whether the controller requires configuration
     *
     * The install wizard does not require any configuration.
     *
     * @var bool
     */
    protected $requiresConfiguration = false;

    /**
     * Show the wizard and run the installation once its finished
     */
    public function indexAction()
    {
        $wizard = $this->createWizard();
        $wizard->navigate(); // Needs to be called before isSubmittedAndValid() as this creates the form

        if ($wizard->isSubmittedAndValid() && $wizard->isFinished()) {
            // TODO: Run the installer (Who creates an installer? How do we handle module installers?)
            $this->dropConfiguration(); // TODO: Should only be done if the installation has been successfully completed
            $this->view->installer = '';
        } else {
            $this->storeConfiguration($wizard->getConfig());
        }

        $this->view->wizard = $wizard;
    }

    /**
     * Create the wizard and register all pages
     *
     * @return  Wizard
     */
    protected function createWizard()
    {
        $wizard = new Wizard();
        $wizard->setTitle('Web');
        $wizard->setRequest($this->getRequest());
        $wizard->setConfiguration($this->loadConfiguration());
        $wizard->addPages(
            array(
                '1st step' => new Page(),
                '2nd step' => new Page(),
                '3rd step' => new Page(),
                'a wizard' => array(
                    '4th step' => new Page(),
                    '5th step' => new Page()
                ),
                'last step' => new Page()
            )
        );

        return $wizard;
    }

    /**
     * Store the given configuration values
     *
     * @param   Zend_Config     $config     The configuration
     */
    protected function storeConfiguration(Zend_Config $config)
    {
        $session = Session::getSession();
        $session->getNamespace('WebWizard')->setAll($config->toArray(), true);
        $session->write();
    }

    /**
     * Load all configuration values
     *
     * @return  Zend_Config
     */
    protected function loadConfiguration()
    {
        return new Zend_Config(Session::getSession()->getNamespace('WebWizard')->getAll(), true);
    }

    /**
     * Clear all stored configuration values
     */
    protected function dropConfiguration()
    {
        $session = Session::getSession();
        $session->removeNamespace('WebWizard');
        $session->write();
    }
}

// @codeCoverageIgnoreEnd