Add student questions list, new question form, and thread pages

Tasks 8–10: student-facing questions UI — list page with unread badges,
new question form with client-side submission, and thread page with
QuestionThread component for real-time reply + file attachment flow.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-05-19 13:31:31 +05:00
parent a9e6272d2d
commit 89d614fa00
4 changed files with 575 additions and 0 deletions
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"use client";
import { useState, useRef } from "react";
interface FileAttachment {
name: string;
url: string;
size: number;
}
interface Message {
id: string;
authorId: string;
text: string;
files: FileAttachment[] | null;
isRead: boolean;
createdAt: string;
author: { id: string; name: string; role: string };
}
interface QuestionThreadProps {
questionId: string;
questionStatus: "OPEN" | "CLOSED";
currentUserId: string;
initialMessages: Message[];
}
function formatDate(iso: string) {
return new Date(iso).toLocaleString("ru", {
day: "numeric",
month: "long",
hour: "2-digit",
minute: "2-digit",
});
}
function formatFileSize(bytes: number) {
if (bytes < 1024) return `${bytes} B`;
if (bytes < 1024 * 1024) return `${Math.round(bytes / 1024)} KB`;
return `${(bytes / 1024 / 1024).toFixed(1)} MB`;
}
export function QuestionThread({
questionId,
questionStatus,
currentUserId,
initialMessages,
}: QuestionThreadProps) {
const [messages, setMessages] = useState<Message[]>(initialMessages);
const [text, setText] = useState("");
const [files, setFiles] = useState<FileAttachment[]>([]);
const [uploading, setUploading] = useState(false);
const [sending, setSending] = useState(false);
const [error, setError] = useState("");
const fileInputRef = useRef<HTMLInputElement>(null);
async function handleFileSelect(e: React.ChangeEvent<HTMLInputElement>) {
const selected = Array.from(e.target.files ?? []);
if (!selected.length) return;
setUploading(true);
setError("");
try {
const uploaded: FileAttachment[] = [];
for (const f of selected) {
const form = new FormData();
form.append("file", f);
const res = await fetch("/api/student/question-upload", { method: "POST", body: form });
if (!res.ok) {
const d = await res.json();
throw new Error(d.error ?? "Ошибка загрузки файла");
}
uploaded.push(await res.json());
}
setFiles((prev) => [...prev, ...uploaded]);
} catch (err) {
setError(err instanceof Error ? err.message : "Ошибка загрузки");
} finally {
setUploading(false);
if (fileInputRef.current) fileInputRef.current.value = "";
}
}
async function handleSend() {
if (!text.trim() && files.length === 0) return;
setSending(true);
setError("");
try {
const res = await fetch(`/api/questions/${questionId}/messages`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ text: text.trim(), files }),
});
if (!res.ok) {
const d = await res.json();
throw new Error(d.error ?? "Ошибка отправки");
}
const msg = await res.json();
setMessages((prev) => [...prev, msg]);
setText("");
setFiles([]);
} catch (err) {
setError(err instanceof Error ? err.message : "Ошибка");
} finally {
setSending(false);
}
}
return (
<div className="flex flex-col gap-2 w-full">
{/* Messages */}
<div className="flex flex-col gap-2 mb-4 max-h-96 overflow-y-auto pr-1">
{messages.map((msg) => {
const isMine = msg.authorId === currentUserId;
const isNew = !msg.isRead && !isMine;
return (
<div
key={msg.id}
className="max-w-[88%] px-3 py-2 rounded-sm text-sm"
style={{
alignSelf: isMine ? "flex-start" : "flex-end",
background: isMine ? "#E8E8E0" : "#F5F5F0",
border: isMine ? "none" : `2px solid #E8F0D8`,
borderLeft: !isMine && isNew ? "3px solid #323232" : undefined,
}}
>
<p
className="text-xs mb-1"
style={{ color: "var(--muted-foreground)" }}
>
{isMine ? "Ты" : msg.author.name} · {formatDate(msg.createdAt)}
{isNew && (
<strong style={{ color: "#323232" }}> · 🔵 новое</strong>
)}
</p>
<p style={{ color: "var(--foreground)" }}>{msg.text}</p>
{msg.files && msg.files.length > 0 && (
<div className="flex flex-col gap-1 mt-2">
{msg.files.map((f, i) => (
<a
key={i}
href={f.url}
target="_blank"
rel="noreferrer"
className="flex items-center gap-1.5 text-xs px-2 py-1 rounded-sm"
style={{
background: "#F5F5F0",
border: "1px solid #AAAAAA",
color: "var(--foreground)",
width: "fit-content",
}}
>
📎 <span>{f.name}</span>
<span style={{ color: "#999" }}>· {formatFileSize(f.size)}</span>
</a>
))}
</div>
)}
</div>
);
})}
</div>
{/* Queued files preview */}
{files.length > 0 && (
<div className="flex flex-wrap gap-1 mb-2">
{files.map((f, i) => (
<div
key={i}
className="flex items-center gap-1 text-xs px-2 py-1 rounded-sm"
style={{ background: "var(--surface)", border: "1px solid var(--border)" }}
>
📎 {f.name}
<button
onClick={() => setFiles((prev) => prev.filter((_, j) => j !== i))}
className="ml-1 text-xs"
style={{ color: "var(--muted-foreground)" }}
>
×
</button>
</div>
))}
</div>
)}
{/* Reply form */}
<div
className="rounded-sm p-2"
style={{
border: "2px solid #AAAAAA",
background: "var(--surface)",
opacity: questionStatus === "CLOSED" ? 0.5 : 1,
pointerEvents: questionStatus === "CLOSED" ? "none" : "auto",
}}
>
<textarea
value={text}
onChange={(e) => setText(e.target.value)}
placeholder={questionStatus === "CLOSED" ? "Вопрос закрыт" : "Написать сообщение..."}
rows={3}
disabled={questionStatus === "CLOSED"}
className="w-full text-sm outline-none resize-none bg-transparent"
style={{ border: "none", color: "var(--foreground)" }}
/>
<div
className="flex items-center justify-between pt-2 mt-1"
style={{ borderTop: "1px solid #E8E8E0" }}
>
<div className="flex items-center gap-2">
<input
ref={fileInputRef}
type="file"
multiple
accept=".jpg,.jpeg,.png,.pdf,.md,.txt"
className="hidden"
onChange={handleFileSelect}
/>
<button
type="button"
onClick={() => fileInputRef.current?.click()}
disabled={uploading}
className="text-xs px-2 py-1 rounded-sm"
style={{ background: "var(--surface)", border: "1px solid #AAAAAA" }}
>
{uploading ? "Загрузка..." : "📎 Прикрепить"}
</button>
<span className="text-xs" style={{ color: "#999" }}>
jpg, png, pdf, md · до 10 МБ
</span>
</div>
<button
type="button"
onClick={handleSend}
disabled={sending || (!text.trim() && files.length === 0)}
className="text-xs font-bold px-4 py-1.5 rounded-sm"
style={{
background: "var(--foreground)",
color: "var(--background)",
border: "none",
opacity: sending ? 0.6 : 1,
}}
>
{sending ? "..." : "Отправить →"}
</button>
</div>
{error && (
<p className="text-xs mt-1" style={{ color: "#c00" }}>
{error}
</p>
)}
</div>
</div>
);
}