<?php

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

if (!$currentUser) {
    http_response_code(403);
    msg_error("You need to be logged in to add new posts!");
    exit;
}

if ($topic->isLocked) {
    http_response_code(403);
    msg_error("This topic is locked!");
    exit;
}

$attachments = reArrayFiles($_FILES["files"]);

if (count($attachments) > MAX_ATTACHMENT_COUNT)
    RequestUtils::triggerFormError(__("Too many attachments"), $formId);

// check all attachments before saving one
foreach ($attachments as $att) {
    if ($att["size"] > MAX_ATTACHMENT_SIZE) {
        RequestUtils::triggerFormError(__("Individual file size exceeded"), $formId);
    }
}

$message = trim(RequestUtils::getRequiredField("message", $formId));

if (strlen($message) < 1 || strlen($message) > 0x8000) {
    RequestUtils::triggerFormError(__("Message too short or too long!"), $formId);
}

$item = new Post();
$item->id = $db->generateId();
$item->authorId = $currentUser->id;
$item->topicId = $topicId;
$item->content = $message;
$item->postDate = new DateTimeImmutable();
$item->deleted = false;
$item->edited = false;

$db->insert($item);

foreach ($attachments as $att) {
    [
        "name" => $name,
        "type" => $type,
        "tmp_name" => $tmpName,
    ] = $att;
    $attachment = new Attachment();
    $attachment->id = $db->generateId();
    $attachment->name = $name;
    $attachment->mimeType = $type;
    $attachment->postId = $item->id;
    $attachment->contents = file_get_contents($tmpName);
    
    $db->insert($attachment);
}

header("Location: ?_action=viewtopic&topic=" . urlencode($topicId) . "#form");