PrePluginUninstallEvent example

    public function uninstallPlugin(Plugin $plugin, $removeData = true)
    {
        $context = new UninstallContext($plugin, $this->release->getVersion(), $plugin->getVersion(), !$removeData);
        $bootstrap = $this->getPluginByName($plugin->getName());

        $this->events->notify(PluginEvent::PRE_DEACTIVATE, new PrePluginDeactivateEvent($context, $bootstrap));
        $this->events->notify(PluginEvent::PRE_UNINSTALL, new PrePluginUninstallEvent($context, $bootstrap));

        $this->applyMigrations($bootstrap, AbstractPluginMigration::MODUS_UNINSTALL, !$removeData);

        $bootstrap->uninstall($context);

        $plugin->setInstalled(null);
        $plugin->setActive(false);

        $this->events->notify(PluginEvent::POST_UNINSTALL, new PostPluginUninstallEvent($context, $bootstrap));
        $this->events->notify(PluginEvent::POST_DEACTIVATE, new PostPluginDeactivateEvent($context, $bootstrap));