feat: quiz
This commit is contained in:
gosangam
@@ -0,0 +1,269 @@
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"use client";
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/**
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* Who took a quiz, and how each question went.
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*
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* Response times are measured by the BFF — from the moment a question was
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* served to the moment its answer arrived — so they can't be massaged by the
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* browser. They include any time the person spent away from the screen.
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*/
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import { useEffect, useState } from "react";
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import { toast } from "sonner";
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import {
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quizzes,
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AdminError,
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type QuizParticipant,
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type QuizQuestionStat,
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type QuizResult,
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} from "@/lib/api";
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import { Avatar } from "@/components/ui/avatar";
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import { Modal } from "@/components/ui/modal";
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import { Table, THead, TH, TR, TD } from "@/components/ui/table";
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import { RichText } from "@/lib/rich-text";
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import { cn, fmtDate } from "@/lib/utils";
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import { fmtMs } from "../labels";
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const errMsg = (err: unknown, fallback: string) =>
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err instanceof AdminError ? err.message : fallback;
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export function Participants({ quizId }: { quizId: string }) {
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const [rows, setRows] = useState<QuizParticipant[] | null>(null);
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const [open, setOpen] = useState<QuizParticipant | null>(null);
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const [detail, setDetail] = useState<QuizResult | null>(null);
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useEffect(() => {
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quizzes
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.participants(quizId)
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.then(setRows)
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.catch((err) => {
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toast.error(errMsg(err, "Could not load participants"));
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setRows([]);
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});
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}, [quizId]);
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const view = (p: QuizParticipant) => {
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setOpen(p);
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setDetail(null);
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quizzes
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.participant(quizId, p.user_id)
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.then(setDetail)
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.catch((err) => toast.error(errMsg(err, "Could not load their answers")));
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};
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if (rows === null)
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return <p className="text-sm text-muted-foreground">Loading…</p>;
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if (rows.length === 0)
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return (
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<p className="text-sm text-muted-foreground">
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Nobody has taken this quiz yet.
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</p>
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);
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return (
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<>
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<Table>
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<THead>
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<TR>
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<TH>Person</TH>
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<TH>Score</TH>
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<TH>Progress</TH>
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<TH>Time</TH>
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<TH>Started</TH>
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</TR>
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</THead>
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<tbody>
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{rows.map((p) => (
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<TR key={p.user_id}>
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<TD>
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<button
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type="button"
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onClick={() => view(p)}
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className="flex items-center gap-3 text-left hover:underline"
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>
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<Avatar
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src={p.avatar_url ?? null}
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name={p.name}
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className="size-8"
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/>
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<span className="min-w-0">
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<span className="block truncate text-sm font-medium">
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{p.name}
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</span>
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<span className="block truncate text-xs text-muted-foreground">
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@{p.handle}
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</span>
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</span>
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</button>
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</TD>
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<TD>
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{p.completed_at ? (
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<span className="font-medium">
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{p.score} / {p.total}
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</span>
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) : (
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<span className="text-muted-foreground">—</span>
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)}
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</TD>
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<TD>
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{p.completed_at ? (
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<span className="text-xs text-primary">Finished</span>
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) : (
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<span className="text-xs text-muted-foreground">
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{p.answered} of {p.total} answered
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</span>
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)}
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</TD>
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<TD className="tabular-nums">{fmtMs(p.total_ms)}</TD>
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<TD className="text-xs text-muted-foreground">
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{fmtDate(p.started_at)}
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</TD>
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</TR>
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))}
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</tbody>
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</Table>
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<Modal
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open={open !== null}
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onClose={() => setOpen(null)}
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title={open ? `${open.name}'s answers` : ""}
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>
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{!detail ? (
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<p className="text-sm text-muted-foreground">Loading…</p>
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) : (
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<div className="max-h-[60vh] space-y-4 overflow-y-auto pr-1">
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<p className="text-sm text-muted-foreground">
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{detail.completed_at
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? `Scored ${detail.score} of ${detail.total}`
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: "Still in progress"}{" "}
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· {fmtMs(detail.total_ms)} in total
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</p>
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{detail.items.map((it, i) => (
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<div key={it.id ?? i} className="space-y-1.5">
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<div className="flex items-start justify-between gap-3 text-sm">
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<p className="font-medium">
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{i + 1}. <RichText text={it.prompt} />
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</p>
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<span className="shrink-0 text-xs tabular-nums text-muted-foreground">
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{fmtMs(it.response_ms)}
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</span>
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</div>
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<ul className="space-y-1">
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{it.options.map((o) => {
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const chosen = !!o.id && it.chosen_option_ids.includes(o.id);
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return (
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<li
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key={o.id}
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className={cn(
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"rounded-md px-3 py-1.5 text-sm",
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o.is_correct
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? "bg-primary font-medium text-primary-foreground"
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: chosen
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? "bg-destructive/10 text-destructive"
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: "bg-muted/40",
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)}
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>
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<RichText text={o.body} />
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{chosen && (
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<span className="ml-2 text-xs">← their answer</span>
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)}
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</li>
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);
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})}
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</ul>
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{it.chosen_option_ids.length === 0 && (
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<p className="text-xs text-muted-foreground">
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Not answered yet.
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</p>
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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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</Modal>
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</>
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);
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}
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export function Responses({ quizId }: { quizId: string }) {
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const [stats, setStats] = useState<QuizQuestionStat[] | null>(null);
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useEffect(() => {
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quizzes
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.responses(quizId)
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.then(setStats)
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.catch((err) => {
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toast.error(errMsg(err, "Could not load responses"));
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setStats([]);
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});
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}, [quizId]);
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if (stats === null)
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return <p className="text-sm text-muted-foreground">Loading…</p>;
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return (
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<ol className="space-y-4">
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{stats.map((q, i) => {
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const pct = q.answered ? Math.round((q.correct / q.answered) * 100) : 0;
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return (
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<li key={q.id} className="rounded-xl border border-border p-4">
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<div className="flex items-start justify-between gap-4">
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<p className="text-sm font-medium">
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{i + 1}. <RichText text={q.prompt} />
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{q.multi && (
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<span className="ml-2 rounded bg-muted px-1.5 py-0.5 text-[10px] font-medium uppercase tracking-wide text-muted-foreground">
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Multiple answers
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</span>
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)}
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</p>
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<div className="shrink-0 text-right text-xs text-muted-foreground">
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<p>
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<span className="font-medium text-foreground">{pct}%</span>{" "}
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correct · {q.answered} answered
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</p>
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<p className="tabular-nums">
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avg {fmtMs(q.avg_ms)} · median {fmtMs(q.median_ms)}
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</p>
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</div>
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</div>
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<ul className="mt-3 space-y-1.5">
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{q.options.map((o) => {
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const share = q.answered ? (o.picks / q.answered) * 100 : 0;
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return (
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<li
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key={o.id}
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className="relative overflow-hidden rounded-md border border-border"
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>
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<div
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className={cn(
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"absolute inset-y-0 left-0",
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o.is_correct ? "bg-primary/15" : "bg-muted",
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)}
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style={{ width: `${share}%` }}
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aria-hidden
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/>
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<div className="relative flex items-center justify-between gap-3 px-3 py-1.5 text-sm">
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<span
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className={cn(
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o.is_correct && "font-medium text-primary",
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)}
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>
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<RichText text={o.body} />
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{o.is_correct && (
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<span className="ml-2 text-xs">✓ correct</span>
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)}
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</span>
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<span className="shrink-0 text-xs tabular-nums text-muted-foreground">
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{o.picks} · {Math.round(share)}%
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</span>
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</div>
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</li>
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);
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})}
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</ul>
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</li>
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);
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})}
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</ol>
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);
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}
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