app/Module/UserMessagesModule.php

<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2021 webtrees development team
 * This program 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.
 * This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace Fisharebest\Webtrees\Module;

use Fisharebest\Webtrees\Auth;
use Fisharebest\Webtrees\Carbon;
use Fisharebest\Webtrees\Contracts\UserInterface;
use Fisharebest\Webtrees\Http\RequestHandlers\TreePage;
use Fisharebest\Webtrees\Http\RequestHandlers\UserPage;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Services\UserService;
use Fisharebest\Webtrees\Tree;
use Illuminate\Database\Capsule\Manager as DB;
use Illuminate\Support\Str;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use stdClass;

use function assert;
use function route;
use function view;

/**
 * Class UserMessagesModule
 */
class UserMessagesModule extends AbstractModule implements ModuleBlockInterface
{
    use ModuleBlockTrait;

    /**
     * @var UserService
     */
    private $user_service;

    /**
     * UserMessagesModule constructor.
     *
     * @param UserService $user_service
     */
    public function __construct(UserService $user_service)
    {
        $this->user_service = $user_service;
    }

    /**
     * How should this module be identified in the control panel, etc.?
     *
     * @return string
     */
    public function title(): string
    {
        /* I18N: Name of a module */
        return I18N::translate('Messages');
    }

    /**
     * A sentence describing what this module does.
     *
     * @return string
     */
    public function description(): string
    {
        /* I18N: Description of the “Messages” module */
        return I18N::translate('Communicate directly with other users, using private messages.');
    }

    /**
     * Delete one or messages belonging to a user.
     *
     * @param ServerRequestInterface $request
     *
     * @return ResponseInterface
     */
    public function postDeleteMessageAction(ServerRequestInterface $request): ResponseInterface
    {
        $tree = $request->getAttribute('tree');
        assert($tree instanceof Tree);

        $params = (array) $request->getParsedBody();

        $message_ids = $params['message_id'] ?? [];

        DB::table('message')
            ->where('user_id', '=', Auth::id())
            ->whereIn('message_id', $message_ids)
            ->delete();

        if ($request->getQueryParams()['context'] === ModuleBlockInterface::CONTEXT_USER_PAGE) {
            $url = route(UserPage::class, ['tree' => $tree->name()]);
        } else {
            $url = route(TreePage::class, ['tree' => $tree->name()]);
        }

        return redirect($url);
    }

    /**
     * Generate the HTML content of this block.
     *
     * @param Tree     $tree
     * @param int      $block_id
     * @param string   $context
     * @param string[] $config
     *
     * @return string
     */
    public function getBlock(Tree $tree, int $block_id, string $context, array $config = []): string
    {
        $messages = DB::table('message')
            ->where('user_id', '=', Auth::id())
            ->orderByDesc('message_id')
            ->get()
            ->map(static function (stdClass $row): stdClass {
                $row->created = Carbon::make($row->created);

                return $row;
            });

        $users = $this->user_service->all()->filter(static function (UserInterface $user) use ($tree): bool {
            $public_tree  = $tree->getPreference('REQUIRE_AUTHENTICATION') !== '1';
            $can_see_tree = $public_tree || Auth::accessLevel($tree, $user) <= Auth::PRIV_USER;

            return
                $user->id() !== Auth::id() &&
                $user->getPreference(UserInterface::PREF_IS_ACCOUNT_APPROVED) &&
                $can_see_tree &&
                $user->getPreference(UserInterface::PREF_CONTACT_METHOD) !== 'none';
        });

        $content = view('modules/user-messages/user-messages', [
            'block_id'     => $block_id,
            'context'      => $context,
            'messages'     => $messages,
            'module'       => $this,
            'tree'         => $tree,
            'user_service' => $this->user_service,
            'users'        => $users,
        ]);

        if ($context !== self::CONTEXT_EMBED) {
            $count = $messages->count();

            return view('modules/block-template', [
                'block'      => Str::kebab($this->name()),
                'id'         => $block_id,
                'config_url' => '',
                'title'      => I18N::plural('%s message', '%s messages', $count, I18N::number($count)),
                'content'    => $content,
            ]);
        }

        return $content;
    }

    /**
     * Should this block load asynchronously using AJAX?
     *
     * Simple blocks are faster in-line, more complex ones can be loaded later.
     *
     * @return bool
     */
    public function loadAjax(): bool
    {
        return false;
    }

    /**
     * Can this block be shown on the user’s home page?
     *
     * @return bool
     */
    public function isUserBlock(): bool
    {
        return true;
    }

    /**
     * Can this block be shown on the tree’s home page?
     *
     * @return bool
     */
    public function isTreeBlock(): bool
    {
        return false;
    }
}