<?php

/** @var Post[] $posts */

use mystic\forum\orm\Attachment;
use mystic\forum\orm\Post;
use mystic\forum\orm\TopicLogMessage;
use mystic\forum\orm\User;
use mystic\forum\utils\RequestUtils;

$posts = $db->fetchCustom(Post::class, 'WHERE topic_id = $1 ORDER BY post_date', [ $topicId ]);
/** @var TopicLogMessage[] $logMessages */
$logMessages = $db->fetchCustom(TopicLogMessage::class, 'WHERE topic_id = $1 ORDER BY post_date', [ $topicId ]);
$userCache = [];

$topicAuthor = null;
if ($topic->createdBy !== null) {
    $topicAuthor = new User();
    $topicAuthor->id = $topic->createdBy;
    if (!$db->fetch($topicAuthor)) {
        $topicAuthor = null;
    }
}

$allItems = [...$posts, ...$logMessages];
usort($allItems, fn(Post|TopicLogMessage $a, Post|TopicLogMessage $b): int => $a->postDate <=> $b->postDate);

_view("template_start", ["_title" => $topic->title]);
_view("template_navigation_start");
_view("template_navigation", ["user" => RequestUtils::getAuthorizedUser($db)]);
_view("template_navigation_end");
_view("view_topic_start", ["topic" => $topic, "topicAuthor" => $topicAuthor]);

foreach ($allItems as $item) {
    /** @var ?User $postAuthor */
    $postAuthor = null;
    if ($item->authorId !== null && !isset($userCache[$item->authorId])) {
        $usr = new User();
        $usr->id = $item->authorId;
        if ($db->fetch($usr))
            $userCache[$item->authorId] = &$usr;
    }
    if (isset($userCache[$item->authorId]))
        $postAuthor = &$userCache[$item->authorId];

    if ($item instanceof Post) {
        $attachments = $db->fetchCustom(Attachment::class, 'WHERE post_id = $1', [ $item->id ]);

        _view("view_post", [
            "post" => $item,
            "postAuthor" => $postAuthor,
            "topicAuthor" => $topicAuthor,
            "attachments" => $attachments,
            "topic" => $topic,
        ]);
    } else {
        _view("view_topiclog", [
            "logMessage" => $item,
            "postAuthor" => $postAuthor,
            "topicAuthor" => $topicAuthor,
            "topic" => $topic,
        ]);
    }
}

_view("view_topic_end");

if ($topic->isLocked) {
    _view("view_topic_locked");
} elseif ($currentUser) {
    _view("form_addpost");
} else {
    _view("view_logintoreply");
}

_view("template_end", [...getThemeAndLangInfo()]);