Mr.X


<?php
/**
Copyright 2011-2014 Nick Korbel

This file is part of Booked Scheduler.

Booked Scheduler is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Booked Scheduler is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Booked Scheduler.  If not, see <http://www.gnu.org/licenses/>.
 */

require_once(ROOT_DIR . 'Presenters/Install/Installer.php');
require_once(ROOT_DIR . 'Presenters/Install/MySqlScript.php');
require_once(ROOT_DIR . 'Presenters/Install/InstallationResult.php');
require_once(ROOT_DIR . 'Presenters/Install/InstallSecurityGuard.php');

class InstallPresenter
{
    /**
     * @var IInstallPage
     */
    private $page;

    /**
     * @var InstallSecurityGuard
     */
    private $securityGuard;

    public function __construct(IInstallPage $page, InstallSecurityGuard $securityGuard)
    {
        $this->page = $page;
        $this->securityGuard = $securityGuard;
    }

    /**
     * Get and Set data to be process by template engine
     * @return void
     */
    public function PageLoad()
    {
        if ($this->page->RunningInstall())
        {
            $this->RunInstall();
            return;
        }

        if ($this->page->RunningUpgrade())
        {
            $this->RunUpgrade();
            return;
        }

        $dbname = Configuration::Instance()->GetSectionKey(ConfigSection::DATABASE, ConfigKeys::DATABASE_NAME);
        $dbuser = Configuration::Instance()->GetSectionKey(ConfigSection::DATABASE, ConfigKeys::DATABASE_USER);
        $dbhost = Configuration::Instance()->GetSectionKey(ConfigSection::DATABASE, ConfigKeys::DATABASE_HOSTSPEC);

        $this->page->SetDatabaseConfig($dbname, $dbuser, $dbhost);

        $this->CheckForInstallPasswordInConfig();
        $this->CheckForInstallPasswordProvided();
        $this->CheckForAuthentication();
        $this->CheckForUpgrade();
    }

    public function CheckForInstallPasswordInConfig()
    {
        $this->page->SetInstallPasswordMissing(!$this->securityGuard->CheckForInstallPasswordInConfig());
    }

    private function CheckForInstallPasswordProvided()
    {
        if ($this->securityGuard->IsAuthenticated())
        {
            return;
        }

        $installPassword = $this->page->GetInstallPassword();

        if (empty($installPassword))
        {
            $this->page->SetShowPasswordPrompt(true);
            return;
        }

        $validated = $this->Validate($installPassword);
        if (!$validated)
        {
            $this->page->SetShowPasswordPrompt(true);
            $this->page->SetShowInvalidPassword(true);
            return;
        }

        $this->page->SetShowPasswordPrompt(false);
        $this->page->SetShowInvalidPassword(false);
    }

    private function CheckForAuthentication()
    {
        if ($this->securityGuard->IsAuthenticated())
        {
            $this->page->SetShowDatabasePrompt(true);
            return;
        }

        $this->page->SetShowDatabasePrompt(false);
    }


    private function Validate($installPassword)
    {
        return $this->securityGuard->ValidatePassword($installPassword);
    }

    private function RunInstall()
    {
        $install = new Installer($this->page->GetInstallUser(), $this->page->GetInstallUserPassword());

        $results = $install->InstallFresh($this->page->GetShouldCreateDatabase(), $this->page->GetShouldCreateUser(), $this->page->GetShouldCreateSampleData());
        $install->ClearCachedTemplates();

        $this->page->SetInstallResults($results);
    }

    private function RunUpgrade()
    {
        $install = new Installer($this->page->GetInstallUser(), $this->page->GetInstallUserPassword());
        $results = $install->Upgrade();
        $install->ClearCachedTemplates();

        $this->page->SetUpgradeResults($results, Configuration::VERSION);
    }

    private function CheckForUpgrade()
    {
        $install = new Installer($this->page->GetInstallUser(), $this->page->GetInstallUserPassword());
        $currentVersion = $install->GetVersion();

        if (!$currentVersion)
        {
            $this->page->ShowInstallOptions(true);
            return;
        }

        if (floatval($currentVersion) < floatval(Configuration::VERSION))
        {
            $this->page->SetCurrentVersion($currentVersion);
            $this->page->SetTargetVersion(Configuration::VERSION);
            $this->page->ShowUpgradeOptions(true);
        }
        else
        {
            $this->page->ShowUpToDate(true);
            $this->page->ShowInstallOptions(true);
        }
    }
}

?>