AliReza
db6d694ab0
The model provider holds the whole answer and sends it at once; a full answer with a diagram took about 30 s on 2026-09-29. A fixed 'thinking' line for that long looked stuck. The stage times are approximate and not tied to what the server is actually doing. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
320 lines
13 KiB
TypeScript
320 lines
13 KiB
TypeScript
import { useEffect, useRef, useState } from 'react';
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import { motion } from 'motion/react';
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import { BookOpen, MessageSquarePlus, RotateCw, Send, ThumbsDown, ThumbsUp } from 'lucide-react';
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import { api } from '@/api';
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import { useAppData } from '@/state/AppData';
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import { askStore, useAskState, type ChatMessage } from '@/state/askStore';
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import { SeyarMascot } from '@/mascots/SeyarMascot';
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import { useToast } from '@/components/Toast';
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import { Screen, ScreenHeader } from '@/components/ui';
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import { Diagram } from '@/diagram';
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import { MathText } from '@/lib/MathText';
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import { friendlyError } from '@/lib/errors';
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import { toFa } from '@/lib/format';
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const STARTERS = ['این فصل درباره‌ی چیه؟', 'یه مثالِ ساده برام حل کن', 'چطور برای امتحان تمرین کنم؟'];
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/** «از پی بپرس»: دستیارِ ریاضی که از روی کتابِ پایه‌ی کاربر جواب می‌دهد. */
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export function AskScreen({ lessonId, questionId, prompt }: { lessonId?: number; questionId?: string; prompt?: string }) {
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const { profile } = useAppData();
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const chat = useAskState();
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const [input, setInput] = useState('');
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const [busy, setBusy] = useState(false);
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const [quota, setQuota] = useState<number | null>(null);
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const listEnd = useRef<HTMLDivElement>(null);
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const autoSent = useRef(false);
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// درسِ تازه یعنی گفتگوی تازه؛ وگرنه اگر گفتگوی قبلی هست، تاریخچه‌اش را بیاور.
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useEffect(() => {
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if (lessonId !== undefined && lessonId !== chat.lessonId) {
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askStore.reset(lessonId);
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return;
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}
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if (chat.historyLoaded) return;
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if (!chat.conversationId) {
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askStore.markHistoryLoaded();
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return;
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}
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api.ai
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.history(chat.conversationId)
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.then((r) =>
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askStore.setHistory(
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r.messages
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.filter((m) => m.role === 'user' || m.role === 'assistant')
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.map((m) => ({ role: m.role as ChatMessage['role'], text: m.text, messageId: m.messageId, diagram: m.diagram ?? null })),
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),
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)
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.catch(() => askStore.reset(null));
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// فقط بارِ اولِ باز شدنِ صفحه؛ عمداً به chat وابسته نیست.
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}, []);
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useEffect(() => {
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if (prompt && !autoSent.current) {
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autoSent.current = true;
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void send(prompt, questionId);
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}
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}, [prompt, questionId]);
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// بعد از رندر اسکرول کن، تا پیشنهادهای ادامه که آخر از همه می‌آیند هم دیده شوند.
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useEffect(() => {
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const frame = requestAnimationFrame(() => listEnd.current?.scrollIntoView({ block: 'end' }));
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return () => cancelAnimationFrame(frame);
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}, [chat.messages]);
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async function send(text: string, forQuestionId?: string) {
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const question = text.trim();
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if (!question || busy) return;
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setBusy(true);
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setInput('');
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askStore.add({ role: 'user', text: question });
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const replyId = askStore.add({ role: 'assistant', text: '' });
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let answer = '';
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try {
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const done = await api.ai.ask(
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{
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userQuestion: question,
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conversationId: askStore.get().conversationId ?? undefined,
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lessonId: askStore.get().lessonId ?? undefined,
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questionId: forQuestionId,
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},
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(delta) => {
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answer += delta;
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askStore.update(replyId, { text: answer });
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},
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);
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askStore.update(replyId, {
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text: answer,
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messageId: done.messageId,
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usedChunks: done.usedChunks,
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followUps: done.suggestedFollowUps,
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diagram: done.diagram ?? null,
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});
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askStore.setConversation(done.conversationId);
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setQuota(done.remainingQuota);
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} catch (err) {
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askStore.update(replyId, {
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text: friendlyError(err, 'جوابی نرسید'),
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failedQuestion: question,
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});
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} finally {
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setBusy(false);
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}
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}
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function retry(message: ChatMessage) {
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if (!message.failedQuestion) return;
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const all = askStore.get().messages;
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const index = all.findIndex((m) => m.localId === message.localId);
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const question = all[index - 1];
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askStore.remove(message.localId);
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if (question?.role === 'user') askStore.remove(question.localId);
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void send(message.failedQuestion);
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}
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const empty = chat.messages.length === 0;
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return (
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<Screen>
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<ScreenHeader
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title="از پی بپرس"
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subtitle={chat.lessonId ? 'از روی کتابِ همین درس جواب می‌دم' : 'دستیارِ ریاضی، از روی کتابِ خودت'}
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color="#9B7BFF"
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back={lessonId !== undefined || prompt !== undefined}
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mascot={{ char: 'pi', mood: busy ? 'excited' : 'idle', size: 60 }}
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>
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{!empty && (
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<button
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type="button"
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onClick={() => askStore.reset(null)}
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disabled={busy}
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className="mt-3 flex items-center gap-1.5 rounded-full bg-white/15 px-3 py-1.5 text-xs font-bold disabled:opacity-50"
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>
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<MessageSquarePlus size={14} /> گفتگوی تازه
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</button>
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)}
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</ScreenHeader>
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<div className="flex flex-1 flex-col gap-3 overflow-y-auto px-4 py-4">
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<Bubble role="assistant">
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سلام {profile.name || 'دوستِ من'}! من پی‌ام 🙂 هر سوالی از ریاضیِ کتابت داری بپرس؛ قدم‌به‌قدم با هم حلش می‌کنیم.
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</Bubble>
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{empty && chat.historyLoaded && (
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<div className="flex flex-wrap gap-2 pr-10">
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{STARTERS.map((s) => (
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<button key={s} type="button" onClick={() => void send(s)} className="rounded-full border border-[#dcd2ff] bg-white px-3 py-1.5 text-xs font-bold text-[#7857E0]">
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{s}
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</button>
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))}
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</div>
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)}
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{chat.messages.map((m, i) => (
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<Message key={m.localId} message={m} last={i === chat.messages.length - 1} busy={busy} onRetry={retry} onFollowUp={(q) => void send(q)} />
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))}
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<div ref={listEnd} />
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</div>
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<form
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className="flex-shrink-0 border-t border-line bg-white px-4 py-3"
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onSubmit={(e) => {
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e.preventDefault();
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void send(input);
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}}
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>
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<div className="flex items-end gap-2">
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<textarea
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value={input}
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onChange={(e) => setInput(e.target.value.slice(0, 1000))}
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onKeyDown={(e) => {
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if (e.key === 'Enter' && !e.shiftKey && !e.nativeEvent.isComposing) {
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e.preventDefault();
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void send(input);
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}
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}}
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rows={1}
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placeholder="سوالت رو بنویس…"
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className="max-h-28 min-h-10 flex-1 resize-none rounded-3xl bg-soft px-4 py-2.5 text-sm leading-6 text-ink outline-none placeholder:text-faint"
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/>
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<button
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type="submit"
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aria-label="ارسال"
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disabled={!input.trim() || busy}
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className="flex h-10 w-10 flex-shrink-0 items-center justify-center rounded-full bg-violet text-white transition-opacity disabled:opacity-40"
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>
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<Send size={16} className="-scale-x-100" />
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</button>
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</div>
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{quota !== null && <p className="mt-1.5 text-center text-[10px] text-muted">امروز {toFa(quota)} سوالِ دیگه می‌تونی بپرسی</p>}
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</form>
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</Screen>
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);
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}
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function Bubble({ role, children, extra }: { role: 'user' | 'assistant'; children: React.ReactNode; extra?: React.ReactNode }) {
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const mine = role === 'user';
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return (
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<div className={`flex gap-2 ${mine ? 'flex-row-reverse' : ''}`}>
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{!mine && (
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<span className="flex h-8 w-8 flex-shrink-0 items-center justify-center overflow-hidden rounded-full bg-[#f5f1ff]">
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<SeyarMascot char="pi" mood="happy" size={32} />
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</span>
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)}
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<div
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className={`max-w-[82%] whitespace-pre-line break-words rounded-2xl px-4 py-3 text-sm leading-[1.95] ${
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mine ? 'rounded-tl-sm bg-coral text-white' : 'rounded-tr-sm border border-line bg-white text-ink shadow-sm'
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}`}
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>
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{children}
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{extra}
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</div>
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</div>
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);
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}
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/**
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* منتظرِ جوابِ دستیار. سرویسِ مدل کلِ جواب را نگه می‌دارد و یک‌جا می‌فرستد؛ جوابِ
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* کامل با شکل در ۲۰۲۶-۰۹-۲۹ حدودِ ۳۰ ثانیه طول کشید. پیامِ ثابت در آن مدت شبیهِ
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* گیر کردن بود، پس متن با زمان جلو می‌رود. زمان‌ها تقریبی‌اند و به مرحله‌ی واقعیِ
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* سرور وصل نیستند.
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*/
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const THINKING_STEPS: [number, string][] = [
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[0, 'پی داره تو کتابت می‌گرده'],
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[4, 'پی داره حلش می‌کنه'],
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[15, 'داره قدم‌ها رو مرتب می‌نویسه'],
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[28, 'جوابِ کامل یه کم طول می‌کشه، الان می‌رسه'],
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];
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function Thinking() {
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const [seconds, setSeconds] = useState(0);
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useEffect(() => {
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const started = Date.now();
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const timer = setInterval(() => setSeconds((Date.now() - started) / 1000), 1000);
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return () => clearInterval(timer);
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}, []);
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const text = [...THINKING_STEPS].reverse().find(([at]) => seconds >= at)![1];
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return (
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<div className="flex items-center gap-2">
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<span className="flex h-8 w-8 flex-shrink-0 items-center justify-center overflow-hidden rounded-full bg-[#f5f1ff]">
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<SeyarMascot char="pi" mood="idle" size={32} />
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</span>
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<div className="flex items-center gap-2 rounded-2xl border border-line bg-white px-4 py-3 text-xs text-muted" aria-live="polite">
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{text}
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{[0, 1, 2].map((i) => (
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<motion.span key={i} className="h-1.5 w-1.5 rounded-full bg-violet/60" animate={{ y: [0, -4, 0] }} transition={{ duration: 0.6, repeat: Infinity, delay: i * 0.15 }} />
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))}
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</div>
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</div>
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);
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}
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function Message({
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message, last, busy, onRetry, onFollowUp,
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}: {
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message: ChatMessage;
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last: boolean;
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busy: boolean;
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onRetry: (m: ChatMessage) => void;
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onFollowUp: (q: string) => void;
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}) {
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const toast = useToast();
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if (message.role === 'user') return <Bubble role="user"><MathText text={message.text} /></Bubble>;
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if (!message.text) return <Thinking />;
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async function rate(helpful: boolean) {
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if (!message.messageId || message.feedback) return;
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askStore.update(message.localId, { feedback: helpful ? 'up' : 'down' });
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try {
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await api.ai.feedback(message.messageId, helpful);
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toast(helpful ? 'ممنون! 🙂' : 'ممنون که گفتی؛ بهترش می‌کنیم.', 'success');
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} catch {
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askStore.update(message.localId, { feedback: undefined });
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toast('نظرت ثبت نشد', 'error');
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}
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}
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return (
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<div className="flex flex-col gap-1.5">
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<Bubble role="assistant" extra={message.diagram ? <div className="whitespace-normal"><Diagram spec={message.diagram} /></div> : undefined}>
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<MathText text={message.text} />
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</Bubble>
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<div className="flex flex-wrap items-center gap-2 pr-10">
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{message.failedQuestion ? (
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<button type="button" disabled={busy} onClick={() => onRetry(message)} className="flex items-center gap-1 rounded-full bg-white px-3 py-1 text-xs font-bold text-coral ring-1 ring-line disabled:opacity-50">
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<RotateCw size={12} /> دوباره امتحان کن
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</button>
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) : (
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<>
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{message.usedChunks && message.usedChunks.length > 0 && (
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<span className="flex items-center gap-1 text-[10px] font-bold text-mint" title={message.usedChunks.map((c) => c.title).join('، ')}>
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<BookOpen size={11} /> از روی کتاب
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</span>
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)}
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{message.messageId && (
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<span className="mr-auto flex gap-1">
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<button type="button" aria-label="مفید بود" onClick={() => void rate(true)} disabled={!!message.feedback} className={`rounded-full p-1.5 ${message.feedback === 'up' ? 'bg-green-100 text-green-600' : 'text-faint'}`}>
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<ThumbsUp size={13} />
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</button>
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<button type="button" aria-label="مفید نبود" onClick={() => void rate(false)} disabled={!!message.feedback} className={`rounded-full p-1.5 ${message.feedback === 'down' ? 'bg-red-100 text-red-500' : 'text-faint'}`}>
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<ThumbsDown size={13} />
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</button>
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</span>
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)}
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</>
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)}
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</div>
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{last && !busy && message.followUps && message.followUps.length > 0 && (
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<div className="flex flex-wrap gap-2 pr-10">
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{message.followUps.map((f) => (
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<button key={f} type="button" onClick={() => onFollowUp(f)} className="rounded-full border border-[#dcd2ff] bg-white px-3 py-1.5 text-xs font-bold text-[#7857E0]">
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{f}
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</button>
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))}
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</div>
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)}
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</div>
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);
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}
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