class.ilOverwritesExistingInstallationConfirmed.php

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<?php

declare(strict_types=1);

use ILIAS\Setup;

class ilOverwritesExistingInstallationConfirmed extends ilSetupObjective
{
    public function getHash(): string
    {
        return hash(
            "sha256",
            get_class($this)
        );
    }

    public function getLabel(): string
    {
        return "Confirm that an existing installation should be overwritten.";
    }

    public function isNotable(): bool
    {
        return false;
    }

    public function getPreconditions(Setup\Environment $environment): array
    {
        return [];
    }

    public function achieve(Setup\Environment $environment): Setup\Environment
    {
        if (!$this->iniExists() && !$this->clientIniExists()) {
            return $environment;
        }

        $admin_interaction = $environment->getResource(Setup\Environment::RESOURCE_ADMIN_INTERACTION);

        $message =
            "An installation already seems to exist in this location. Using this command\n" .
            "might change your installation in unexpected ways. Also, the command might not\n" .
            "work as expected. Are you sure that you want to proceed anyway?";

        if (!$admin_interaction->confirmOrDeny($message)) {
            throw new Setup\NoConfirmationException($message);
        }

        return $environment;
    }

    public function isApplicable(Setup\Environment $environment): bool
    {
        return $this->iniExists() || $this->clientIniExists();
    }

    public function iniExists(): bool
    {
        return file_exists(dirname(__DIR__, 4) . "/ilias.ini.php");
    }

    public function clientIniExists(): bool
    {
        return file_exists($this->getClientDir() . "/client.ini.php");
    }

    protected function getClientDir(): string
    {
        return dirname(__DIR__, 4) . "/public/data/" . ((string) $this->config->getClientId());
    }
}