Reasoning

"use client";import { useEffect, useRef, useState } from "react";import { Button } from "@/components/vip-ui/button";import {  Reasoning,  ReasoningPanel,  ReasoningTrigger,} from "@/components/vip-ui/reasoning";const THOUGHT = [  "The user asked which rollout plan to pick, so I should compare both on setup cost, maintenance, and how they behave under load.",  "The first plan keeps the current index and adds the filter behind a flag, which is cheap to set up and easy to reverse.",  "The second plan rebuilds the index with the filter baked in, so it reads faster at steady state but the backfill runs for hours.",  "The load numbers in the issue are modest, so the reversible plan wins on risk.",  "The cleanup work sits with the flag, which the rollout ticket already covers.",].join(" ");function useWordStream(text: string, run: boolean) {  const [count, setCount] = useState(0);  const countRef = useRef(0);  countRef.current = count;  useEffect(() => {    if (!run) return;    setCount(0);    countRef.current = 0;    const words = text.split(" ");    const id = window.setInterval(() => {      if (countRef.current >= words.length) {        window.clearInterval(id);        return;      }      countRef.current += 1;      setCount(countRef.current);    }, 40);    return () => window.clearInterval(id);  }, [run, text]);  return text.split(" ").slice(0, count).join(" ");}export function ReasoningDemo() {  const [status, setStatus] = useState<"thinking" | "complete">("thinking");  const thought = useWordStream(THOUGHT, status === "thinking");  useEffect(() => {    if (status !== "thinking") return;    if (thought.length < THOUGHT.length) return;    const id = window.setTimeout(() => setStatus("complete"), 300);    return () => window.clearTimeout(id);  }, [status, thought]);  return (    <div className="grid w-full max-w-lg justify-items-start gap-2">      <Reasoning status={status} className="w-full">        <ReasoningTrigger />        <ReasoningPanel scrollable>{thought}</ReasoningPanel>      </Reasoning>      <Button        type="button"        variant="ghost"        size="sm"        onPress={() => setStatus("thinking")}      >        Run again      </Button>    </div>  );}

"use client";import { useEffect, useState } from "react";import { Button } from "@/components/vip-ui/button";import {  Reasoning,  ReasoningPanel,  ReasoningTrigger,} from "@/components/vip-ui/reasoning";export function ReasoningAutoCollapseDemo() {  const [status, setStatus] = useState<"thinking" | "complete">("thinking");  useEffect(() => {    if (status !== "thinking") return;    const id = window.setTimeout(() => setStatus("complete"), 3000);    return () => window.clearTimeout(id);  }, [status]);  return (    <div className="grid w-full max-w-lg justify-items-start gap-2">      <Reasoning status={status} autoCollapse className="w-full">        <ReasoningTrigger />        <ReasoningPanel>          Checking the two options against the load numbers in the issue.        </ReasoningPanel>      </Reasoning>      <Button        type="button"        variant="ghost"        size="sm"        onPress={() => setStatus("thinking")}      >        Run again      </Button>    </div>  );}

import {  Reasoning,  ReasoningPanel,  ReasoningTrigger,} from "@/components/vip-ui/reasoning";export function ReasoningErrorDemo() {  return (    <Reasoning status="error" defaultExpanded className="w-full max-w-lg">      <ReasoningTrigger />      <ReasoningPanel>        The provider stopped responding before the model finished. Retry the        request.      </ReasoningPanel>    </Reasoning>  );}

import {  Reasoning,  ReasoningPanel,  ReasoningTrigger,} from "@/components/vip-ui/reasoning";const PARAGRAPHS = [  "The request touches three parts of the system. First, the schema change is additive, so old clients keep working. Second, the read path can stay on the current index if the new filter is pushed down.",  "Next I should check the write path. The new column is nullable, so the migration does not need a backfill. The batch job writes it after the fact.",  "Finally, the rollout order matters. Deploying the reader first means the writer can land later without a flag.",  "I also checked the failure modes. If the reader lands first and the column is missing, the query falls back to the old path. The logs record which path answered, so the cutover is observable.",  "That covers the plan. The remaining risk is the batch window on the read replica, which the maintenance page already explains.",];export function ReasoningLongDemo() {  return (    <Reasoning      status="complete"      duration={24}      defaultExpanded      className="w-full max-w-lg"    >      <ReasoningTrigger />      <ReasoningPanel scrollable>        <div className="grid gap-3">          {PARAGRAPHS.map((paragraph) => (            <p key={paragraph.slice(0, 24)}>{paragraph}</p>          ))}        </div>      </ReasoningPanel>    </Reasoning>  );}