Progress

TSX
"use client";

import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

const sizes = [
  {
    label: "Compact",
    hint: "Table rows and dense lists",
    value: 42,
    className: "[&>[data-slot=progress-track]]:h-1",
  },
  {
    label: "Default",
    hint: "Forms, cards, and settings",
    value: 64,
    className: "[&>[data-slot=progress-track]]:h-2",
  },
  {
    label: "Large",
    hint: "Installs and full-page tasks",
    value: 86,
    className: "[&>[data-slot=progress-track]]:h-3",
  },
];

export default function Progress01() {
  return (
    <div className="flex w-full max-w-sm flex-col gap-6">
      {sizes.map((size) => (
        <Progress
          key={size.label}
          value={size.value}
          className={size.className}
        >
          <div className="flex w-full items-baseline gap-2">
            <ProgressLabel>{size.label}</ProgressLabel>
            <span className="truncate text-xs text-muted-foreground">
              {size.hint}
            </span>
            <ProgressValue />
          </div>
        </Progress>
      ))}
    </div>
  );
}

TSX
"use client";

import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

export default function Progress02() {
  return (
    <div className="flex w-full max-w-sm flex-col gap-8">
      {/* Label and value share a header row above the track. */}
      <Progress value={58}>
        <ProgressLabel>Profile completion</ProgressLabel>
        <ProgressValue />
      </Progress>

      {/* Value trails the track on the same line. */}
      <Progress
        value={73}
        className="flex-nowrap items-center [&>[data-slot=progress-track]]:flex-1"
      >
        <ProgressLabel className="shrink-0 text-xs">API quota</ProgressLabel>
        <ProgressValue className="order-last ml-0 w-10 text-right text-xs" />
      </Progress>

      {/* Label sits under the track with a helper line. */}
      <Progress
        value={31}
        aria-describedby="progress-02-hint"
        className="gap-2"
      >
        <div className="order-last flex w-full items-baseline justify-between gap-3">
          <ProgressLabel className="text-xs">Course: Intro to SQL</ProgressLabel>
          <span
            id="progress-02-hint"
            className="text-xs text-muted-foreground tabular-nums"
          >
            5 of 16 lessons
          </span>
        </div>
      </Progress>
    </div>
  );
}

TSX
"use client";

import * as React from "react";
import {
  CircleAlert,
  CircleCheck,
  LoaderCircle,
  TriangleAlert,
} from "lucide-react";

import { Button } from "@/components/ui/button";
import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

const statuses = [
  {
    id: "success",
    label: "Nightly backup",
    message: "Completed at 02:14. 1,284 files verified.",
    value: 100,
    icon: CircleCheck,
    iconClassName: "text-success",
    className: "[&_[data-slot=progress-indicator]]:bg-success",
  },
  {
    id: "warning",
    label: "Workspace storage",
    message: "46 of 50 GB used. Archive old projects to free space.",
    value: 92,
    icon: TriangleAlert,
    iconClassName: "text-warning",
    className: "[&_[data-slot=progress-indicator]]:bg-warning",
  },
  {
    id: "error",
    label: "Contacts import",
    message: "Stopped at row 3,120: missing email column.",
    value: 64,
    icon: CircleAlert,
    iconClassName: "text-destructive",
    className: "[&_[data-slot=progress-indicator]]:bg-destructive",
  },
];

type ImportState = "error" | "running" | "success";

// The failed import can be retried: it resumes from where it stopped.
const importStates = {
  running: {
    message: "Resuming from row 3,120 with the mapped email column.",
    icon: LoaderCircle,
    iconClassName: "animate-spin text-muted-foreground motion-reduce:animate-none",
    className: "",
  },
  success: {
    message: "Imported 4,870 contacts. 12 duplicates merged.",
    icon: CircleCheck,
    iconClassName: "text-success",
    className: "[&_[data-slot=progress-indicator]]:bg-success",
  },
};

export default function Progress03() {
  const [importState, setImportState] = React.useState<ImportState>("error");
  const [importValue, setImportValue] = React.useState(64);

  React.useEffect(() => {
    if (importState !== "running") return;
    const timer = setInterval(() => {
      setImportValue((current) => Math.min(current + 6, 100));
    }, 150);
    return () => clearInterval(timer);
  }, [importState]);

  React.useEffect(() => {
    if (importState === "running" && importValue >= 100) {
      setImportState("success");
    }
  }, [importState, importValue]);

  const items = statuses.map((status) =>
    status.id === "error" && importState !== "error"
      ? { ...status, ...importStates[importState], value: importValue }
      : status,
  );

  return (
    <div className="flex w-full max-w-sm flex-col gap-6">
      {items.map((status) => {
        const Icon = status.icon;
        const messageId = `progress-03-${status.id}`;

        return (
          <div key={status.id} className="flex gap-3">
            <Icon
              aria-hidden="true"
              className={`mt-0.5 size-4 shrink-0 ${status.iconClassName}`}
            />
            <div className="flex min-w-0 flex-1 flex-col gap-2">
              <Progress
                value={status.value}
                aria-describedby={messageId}
                className={`[&>[data-slot=progress-track]]:h-1.5 ${status.className}`}
              >
                <ProgressLabel>{status.label}</ProgressLabel>
                <ProgressValue />
              </Progress>
              <div className="flex items-start justify-between gap-3">
                <p
                  id={messageId}
                  aria-live={status.id === "error" ? "polite" : undefined}
                  className="text-xs text-muted-foreground"
                >
                  {status.message}
                </p>
                {status.id === "error" && importState === "error" ? (
                  <Button
                    variant="outline"
                    size="xs"
                    className="shrink-0"
                    onClick={() => setImportState("running")}
                  >
                    Retry
                  </Button>
                ) : null}
              </div>
            </div>
          </div>
        );
      })}
    </div>
  );
}

TSX
"use client";

import * as React from "react";
import { Download, LoaderCircle } from "lucide-react";

import { Button } from "@/components/ui/button";
import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

type Phase = "idle" | "preparing" | "exporting" | "done";

const copy: Record<Phase, { label: string; hint: string }> = {
  idle: {
    label: "Export ready to start",
    hint: "Q3 invoices, 2,418 rows as CSV.",
  },
  preparing: {
    label: "Preparing export",
    hint: "Counting rows and applying filters.",
  },
  exporting: {
    label: "Writing file",
    hint: "Keep this tab open until the export finishes.",
  },
  done: {
    label: "Export complete",
    hint: "invoices-q3.csv is ready to download.",
  },
};

export default function Progress04() {
  const [phase, setPhase] = React.useState<Phase>("idle");
  const [value, setValue] = React.useState(0);

  // Preparing has no measurable total yet, so the bar stays indeterminate.
  React.useEffect(() => {
    if (phase !== "preparing") return;
    const timer = setTimeout(() => setPhase("exporting"), 1600);
    return () => clearTimeout(timer);
  }, [phase]);

  React.useEffect(() => {
    if (phase !== "exporting") return;
    const timer = setInterval(() => {
      setValue((current) => Math.min(current + 7, 100));
    }, 180);
    return () => clearInterval(timer);
  }, [phase]);

  React.useEffect(() => {
    if (phase === "exporting" && value >= 100) setPhase("done");
  }, [phase, value]);

  function start() {
    setValue(0);
    setPhase("preparing");
  }

  const busy = phase === "preparing" || phase === "exporting";

  return (
    <div className="flex w-full max-w-sm flex-col gap-4">
      <Progress
        value={phase === "preparing" ? null : value}
        aria-busy={busy}
        aria-describedby="progress-04-hint"
        className="[&>[data-slot=progress-track]]:h-2 [&_[data-indeterminate][data-slot=progress-indicator]]:w-full [&_[data-indeterminate][data-slot=progress-indicator]]:bg-primary/40 [&_[data-indeterminate][data-slot=progress-indicator]]:animate-pulse [&_[data-indeterminate][data-slot=progress-indicator]]:rounded-full motion-reduce:[&_[data-indeterminate][data-slot=progress-indicator]]:animate-none"
      >
        <ProgressLabel className="flex items-center gap-2">
          {busy ? (
            <LoaderCircle
              aria-hidden="true"
              className="size-3.5 animate-spin text-muted-foreground motion-reduce:animate-none"
            />
          ) : null}
          {copy[phase].label}
        </ProgressLabel>
        {phase === "preparing" ? (
          <span className="ml-auto text-sm text-muted-foreground">
            Estimating
          </span>
        ) : (
          <ProgressValue />
        )}
      </Progress>
      <div className="flex items-center justify-between gap-3">
        <p id="progress-04-hint" className="text-xs text-muted-foreground">
          {copy[phase].hint}
        </p>
        {phase === "done" ? (
          <Button size="sm" variant="outline" onClick={start}>
            <Download data-icon="inline-start" aria-hidden="true" />
            Export again
          </Button>
        ) : (
          <Button size="sm" onClick={start} disabled={busy}>
            {busy ? "Exporting" : "Start export"}
          </Button>
        )}
      </div>
    </div>
  );
}

TSX
"use client";

import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

const meters = [
  {
    label: "Training distance this month",
    value: 128.4,
    min: 0,
    max: 200,
    format: {
      style: "unit",
      unit: "kilometer",
      maximumFractionDigits: 1,
    } satisfies Intl.NumberFormatOptions,
    suffix: "of 200 km",
  },
  {
    label: "Support tickets closed",
    value: 38,
    min: 0,
    max: 120,
    format: { maximumFractionDigits: 0 } satisfies Intl.NumberFormatOptions,
    suffix: "of 120",
  },
  {
    label: "Fundraising goal",
    value: 12650,
    min: 0,
    max: 20000,
    format: {
      style: "currency",
      currency: "USD",
      maximumFractionDigits: 0,
    } satisfies Intl.NumberFormatOptions,
    suffix: "of $20,000",
  },
];

export default function Progress05() {
  return (
    <div className="flex w-full max-w-sm flex-col gap-6">
      {meters.map((meter) => (
        <Progress
          key={meter.label}
          value={meter.value}
          min={meter.min}
          max={meter.max}
          format={meter.format}
          locale="en-US"
          getAriaValueText={(formatted) => `${formatted} ${meter.suffix}`}
          className="gap-2 [&>[data-slot=progress-track]]:h-1.5"
        >
          <ProgressLabel className="w-full text-xs font-normal text-muted-foreground">
            {meter.label}
          </ProgressLabel>
          <ProgressValue className="ml-0 text-base font-semibold text-foreground">
            {(formatted) => (
              <>
                {formatted}
                <span className="ml-1 text-sm font-normal text-muted-foreground">
                  {meter.suffix}
                </span>
              </>
            )}
          </ProgressValue>
        </Progress>
      ))}
    </div>
  );
}

TSX
"use client";

import * as React from "react";
import {
  ChevronLeftIcon,
  ChevronRightIcon,
  KeyboardIcon,
  PauseIcon,
  PlayIcon,
  RotateCcwIcon,
  SparklesIcon,
  TimerIcon,
  UsersIcon,
} from "lucide-react";

import { Button } from "@/components/ui/button";
import { Progress } from "@/components/ui/progress";

const SLIDES = [
  {
    id: "assistant",
    icon: SparklesIcon,
    title: "Draft replies with Assist",
    body: "Assist reads the whole thread and suggests a reply in your saved tone. Press Tab to accept it.",
  },
  {
    id: "shortcuts",
    icon: KeyboardIcon,
    title: "Shortcuts for everything",
    body: "Press ? anywhere to see every shortcut, including new ones for snooze and assign.",
  },
  {
    id: "sla",
    icon: TimerIcon,
    title: "SLA timers on every ticket",
    body: "Tickets close to their first-response deadline now show a countdown in the inbox.",
  },
  {
    id: "sharing",
    icon: UsersIcon,
    title: "Shared drafts",
    body: "Mention a teammate in a draft to get a review before the customer sees it.",
  },
];

const SLIDE_MS = 5000;
const TICK_MS = 100;

export default function Progress06() {
  const [index, setIndex] = React.useState(0);
  const [elapsed, setElapsed] = React.useState(0);
  const [playing, setPlaying] = React.useState(true);

  const last = index === SLIDES.length - 1;
  const finished = last && elapsed >= SLIDE_MS;

  // The timer only runs while playing and stops itself on the last slide.
  React.useEffect(() => {
    if (!playing || finished) return;
    const timer = setInterval(() => {
      setElapsed((current) => current + TICK_MS);
    }, TICK_MS);
    return () => clearInterval(timer);
  }, [playing, finished]);

  React.useEffect(() => {
    if (elapsed < SLIDE_MS || last) return;
    setIndex((current) => current + 1);
    setElapsed(0);
  }, [elapsed, last]);

  function goTo(next: number) {
    setIndex(Math.min(Math.max(next, 0), SLIDES.length - 1));
    setElapsed(0);
  }

  function replay() {
    goTo(0);
    setPlaying(true);
  }

  const slide = SLIDES[index];
  const Icon = slide.icon;

  return (
    <section
      aria-label="What's new in Helpdesk 4.2"
      className="flex w-full max-w-sm flex-col gap-5 rounded-xl border bg-card p-5 text-card-foreground"
    >
      {/* One segment per slide: finished slides are full, the current one fills over time. */}
      <div className="flex gap-1.5">
        {SLIDES.map((item, itemIndex) => {
          const value =
            itemIndex < index
              ? 100
              : itemIndex === index
                ? Math.min((elapsed / SLIDE_MS) * 100, 100)
                : 0;
          return (
            <Progress
              key={item.id}
              value={value}
              aria-label={`Slide ${itemIndex + 1}: ${item.title}`}
              className="flex-1 [&_[data-slot=progress-indicator]]:duration-100 [&_[data-slot=progress-indicator]]:ease-linear"
            />
          );
        })}
      </div>

      {/* Announce slide changes only when the user drives them, not on autoplay. */}
      <div
        aria-live={playing && !finished ? "off" : "polite"}
        className="flex min-h-36 flex-col gap-3"
      >
        <span className="flex size-10 items-center justify-center rounded-lg bg-muted">
          <Icon aria-hidden="true" className="size-5" />
        </span>
        <div className="flex flex-col gap-1">
          <h3 className="font-medium">{slide.title}</h3>
          <p className="text-sm text-pretty text-muted-foreground">
            {slide.body}
          </p>
        </div>
      </div>

      <div className="flex items-center justify-between gap-2">
        <span className="text-xs text-muted-foreground tabular-nums">
          {index + 1} / {SLIDES.length}
        </span>
        <div className="flex items-center gap-1">
          <Button
            variant="ghost"
            size="icon-sm"
            aria-label="Previous slide"
            disabled={index === 0}
            onClick={() => goTo(index - 1)}
          >
            <ChevronLeftIcon aria-hidden="true" />
          </Button>
          {finished ? (
            <Button
              variant="ghost"
              size="icon-sm"
              aria-label="Replay"
              onClick={replay}
            >
              <RotateCcwIcon aria-hidden="true" />
            </Button>
          ) : (
            <Button
              variant="ghost"
              size="icon-sm"
              aria-label={playing ? "Pause" : "Play"}
              onClick={() => setPlaying((current) => !current)}
            >
              {playing ? (
                <PauseIcon aria-hidden="true" />
              ) : (
                <PlayIcon aria-hidden="true" />
              )}
            </Button>
          )}
          <Button
            variant="ghost"
            size="icon-sm"
            aria-label="Next slide"
            disabled={last}
            onClick={() => goTo(index + 1)}
          >
            <ChevronRightIcon aria-hidden="true" />
          </Button>
        </div>
      </div>
    </section>
  );
}

TSX
"use client";

import type { CSSProperties } from "react";

import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

const campaigns = [
  { name: "Spring launch emails", sent: 8240, total: 12000 },
  { name: "Churn win-back", sent: 1830, total: 2400 },
  { name: "Beta invite wave 2", sent: 310, total: 1500 },
];

const numberFormat = new Intl.NumberFormat("en-US");

export default function Progress07() {
  return (
    <div className="flex w-full max-w-sm flex-col gap-3">
      {campaigns.map((campaign) => {
        const percent = Math.round((campaign.sent / campaign.total) * 100);
        const caption = `${numberFormat.format(campaign.sent)} of ${numberFormat.format(campaign.total)} sent`;

        return (
          <Progress
            key={campaign.name}
            value={campaign.sent}
            max={campaign.total}
            getAriaValueText={() => caption}
            className="relative [&>[data-slot=progress-track]]:h-8 [&>[data-slot=progress-track]]:rounded-md [&_[data-slot=progress-indicator]]:rounded-none"
          >
            <ProgressLabel className="sr-only">{campaign.name}</ProgressLabel>
            <ProgressValue className="sr-only" />
            {/*
              Two stacked copies of the same text: the top one is clipped to
              the filled width so it flips color exactly where the bar ends.
            */}
            <InsideLabel
              name={campaign.name}
              caption={`${percent}%`}
              className="text-foreground"
            />
            <InsideLabel
              name={campaign.name}
              caption={`${percent}%`}
              className="text-primary-foreground transition-[clip-path]"
              style={{ clipPath: `inset(0 ${100 - percent}% 0 0)` }}
            />
          </Progress>
        );
      })}
    </div>
  );
}

function InsideLabel({
  name,
  caption,
  className,
  style,
}: {
  name: string;
  caption: string;
  className: string;
  style?: CSSProperties;
}) {
  return (
    <div
      aria-hidden="true"
      style={style}
      className={`pointer-events-none absolute inset-x-0 bottom-0 z-10 flex h-8 items-center justify-between gap-3 px-3 text-xs font-medium ${className}`}
    >
      <span className="truncate">{name}</span>
      <span className="tabular-nums">{caption}</span>
    </div>
  );
}

TSX
"use client";

import { cn } from "cn";

import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
import { Badge } from "@/components/ui/badge";
import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

const QUARTER_DAYS = 92;
const DAY = 58;

const KEY_RESULTS = [
  {
    id: "activation",
    title: "Raise week-one activation to 45%",
    owner: { name: "Priya Nair", initials: "PN" },
    value: 71,
  },
  {
    id: "churn",
    title: "Cut self-serve churn below 3%",
    owner: { name: "Daniel Okafor", initials: "DO" },
    value: 52,
  },
  {
    id: "nps",
    title: "Ship in-app NPS to all workspaces",
    owner: { name: "Lena Fischer", initials: "LF" },
    value: 28,
  },
];

const STATUS = {
  ahead: {
    label: "On track",
    dot: "bg-success",
    bar: "[&_[data-slot=progress-indicator]]:bg-success",
  },
  risk: {
    label: "At risk",
    dot: "bg-warning",
    bar: "[&_[data-slot=progress-indicator]]:bg-warning",
  },
  behind: {
    label: "Behind",
    dot: "bg-destructive",
    bar: "[&_[data-slot=progress-indicator]]:bg-destructive",
  },
};

function getStatus(value: number, pace: number) {
  if (value >= pace - 5) return STATUS.ahead;
  if (value >= pace - 20) return STATUS.risk;
  return STATUS.behind;
}

export default function Progress08() {
  const pace = Math.round((DAY / QUARTER_DAYS) * 100);

  return (
    <section
      aria-labelledby="progress-08-title"
      className="flex w-full max-w-md flex-col gap-5 rounded-xl border bg-card p-5 text-card-foreground"
    >
      <header className="flex flex-col gap-3">
        <div className="flex items-baseline justify-between gap-2">
          <h3 id="progress-08-title" className="font-medium">
            Growth team · Q3 goals
          </h3>
          <span className="shrink-0 text-xs whitespace-nowrap text-muted-foreground tabular-nums">
            {QUARTER_DAYS - DAY} days left
          </span>
        </div>
        <Progress
          value={DAY}
          max={QUARTER_DAYS}
          getAriaValueText={() => `Day ${DAY} of ${QUARTER_DAYS}`}
          className="gap-1.5 [&_[data-slot=progress-indicator]]:bg-muted-foreground/50"
        >
          <ProgressLabel className="text-xs font-normal text-muted-foreground">
            Quarter elapsed
          </ProgressLabel>
          <ProgressValue className="text-xs" />
        </Progress>
      </header>

      <ul className="flex flex-col divide-y">
        {KEY_RESULTS.map((kr) => {
          const status = getStatus(kr.value, pace);
          return (
            <li
              key={kr.id}
              className="flex flex-col gap-3 py-4 first:pt-0 last:pb-0"
            >
              <div className="flex items-start gap-3">
                <Avatar size="sm" className="max-sm:hidden">
                  <AvatarImage src="/placeholder.svg" alt="" />
                  <AvatarFallback>{kr.owner.initials}</AvatarFallback>
                </Avatar>
                <div className="flex min-w-0 flex-1 flex-col">
                  <span className="text-sm font-medium">{kr.title}</span>
                  <span className="text-xs text-muted-foreground">
                    Owned by {kr.owner.name}
                  </span>
                </div>
                <Badge variant="outline" className="shrink-0">
                  <span
                    aria-hidden="true"
                    className={cn("size-1.5 rounded-full", status.dot)}
                  />
                  {status.label}
                </Badge>
              </div>
              <div className="relative">
                <Progress
                  value={kr.value}
                  aria-label={kr.title}
                  getAriaValueText={(formatted) =>
                    `${formatted} complete, expected ${pace}% by today, ${status.label.toLowerCase()}`
                  }
                  className={cn(
                    "flex-nowrap items-center gap-3 [&_[data-slot=progress-track]]:order-first [&_[data-slot=progress-track]]:h-2",
                    status.bar,
                  )}
                >
                  <ProgressValue className="w-9 shrink-0 text-right text-xs" />
                </Progress>
                <span
                  aria-hidden="true"
                  title={`Expected pace: ${pace}%`}
                  className="pointer-events-none absolute top-1/2 h-3.5 w-0.5 -translate-x-1/2 -translate-y-1/2 rounded-full bg-foreground"
                  style={{ left: `calc((100% - 3rem) * ${pace / 100})` }}
                />
              </div>
            </li>
          );
        })}
      </ul>

      <p className="flex items-center gap-2 text-xs text-muted-foreground">
        <span
          aria-hidden="true"
          className="inline-block h-3 w-0.5 rounded-full bg-foreground"
        />
        Expected pace for day {DAY} ({pace}%)
      </p>
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import {
  CircleCheckIcon,
  FileArchiveIcon,
  FileImageIcon,
  FileTextIcon,
  FileVideoIcon,
  RotateCwIcon,
  XIcon,
} from "lucide-react";
import { cn } from "cn";

import { Button } from "@/components/ui/button";
import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

type Status = "queued" | "uploading" | "processing" | "done" | "failed";

type Upload = {
  id: string;
  name: string;
  sizeMb: number;
  icon: typeof FileTextIcon;
  progress: number;
  status: Status;
  failAt?: number;
  processingTicks: number;
};

const INITIAL: Upload[] = [
  {
    id: "brand",
    name: "brand-guidelines-2026.pdf",
    sizeMb: 8.4,
    icon: FileTextIcon,
    progress: 100,
    status: "done",
    processingTicks: 0,
  },
  {
    id: "launch",
    name: "launch-teaser-cut-03.mp4",
    sizeMb: 146,
    icon: FileVideoIcon,
    progress: 38,
    status: "uploading",
    processingTicks: 0,
  },
  {
    id: "deck",
    name: "board-deck-final.key",
    sizeMb: 52,
    icon: FileArchiveIcon,
    progress: 44,
    status: "uploading",
    failAt: 62,
    processingTicks: 0,
  },
  {
    id: "hero",
    name: "homepage-hero@2x.png",
    sizeMb: 6.1,
    icon: FileImageIcon,
    progress: 0,
    status: "queued",
    processingTicks: 0,
  },
];

const MAX_PARALLEL = 2;
const TICK_MS = 450;

function step(uploads: Upload[]): Upload[] {
  const next = uploads.map((file): Upload => {
    if (file.status === "processing") {
      return file.processingTicks >= 3
        ? { ...file, status: "done" }
        : { ...file, processingTicks: file.processingTicks + 1 };
    }
    if (file.status !== "uploading") return file;
    const increment = Math.max(2, Math.round(240 / file.sizeMb));
    const progress = Math.min(file.progress + increment, 100);
    if (file.failAt !== undefined && progress >= file.failAt) {
      return { ...file, progress: file.failAt, status: "failed" };
    }
    if (progress === 100) {
      return { ...file, progress, status: "processing" };
    }
    return { ...file, progress };
  });

  // Start queued files while a parallel slot is free.
  let active = next.filter((file) => file.status === "uploading").length;
  return next.map((file) => {
    if (file.status === "queued" && active < MAX_PARALLEL) {
      active += 1;
      return { ...file, status: "uploading" };
    }
    return file;
  });
}

const STATUS_TEXT: Record<Status, string> = {
  queued: "Waiting",
  uploading: "Uploading",
  processing: "Scanning for viruses",
  done: "Uploaded",
  failed: "Connection lost",
};

function describe(file: Upload) {
  switch (file.status) {
    case "uploading":
      return `${Math.round((file.sizeMb * file.progress) / 100)} of ${file.sizeMb} MB`;
    case "done":
      return `${file.sizeMb} MB · ${STATUS_TEXT.done}`;
    case "failed":
      return `${STATUS_TEXT.failed} at ${file.progress}%`;
    default:
      return STATUS_TEXT[file.status];
  }
}

export default function Progress09() {
  const [uploads, setUploads] = React.useState(INITIAL);

  const running = uploads.some((file) =>
    ["queued", "uploading", "processing"].includes(file.status),
  );

  React.useEffect(() => {
    if (!running) return;
    const timer = setInterval(() => setUploads(step), TICK_MS);
    return () => clearInterval(timer);
  }, [running]);

  const totalMb = uploads.reduce((sum, file) => sum + file.sizeMb, 0);
  const sentMb = uploads.reduce(
    (sum, file) => sum + (file.sizeMb * file.progress) / 100,
    0,
  );
  const doneCount = uploads.filter((file) => file.status === "done").length;
  const failedCount = uploads.filter((file) => file.status === "failed").length;

  function retry(id: string) {
    setUploads((current) =>
      current.map((file) =>
        file.id === id
          ? { ...file, status: "queued", progress: 0, failAt: undefined }
          : file,
      ),
    );
  }

  function remove(id: string) {
    setUploads((current) => current.filter((file) => file.id !== id));
  }

  return (
    <section
      aria-labelledby="progress-09-title"
      className="flex w-full max-w-md flex-col overflow-hidden rounded-xl border bg-card text-card-foreground"
    >
      <div className="flex flex-col gap-3 border-b bg-muted/40 p-4">
        <h3 id="progress-09-title" className="text-sm font-medium">
          Uploading to Marketing / Q4 launch
        </h3>
        <Progress
          value={totalMb === 0 ? 0 : (sentMb / totalMb) * 100}
          getAriaValueText={(formatted) =>
            `${formatted} of all files uploaded`
          }
          className="gap-1.5 [&_[data-slot=progress-track]]:h-1.5"
        >
          <ProgressLabel className="text-xs font-normal text-muted-foreground tabular-nums">
            {doneCount} of {uploads.length} files ·{" "}
            {Math.round(sentMb)} / {Math.round(totalMb)} MB
            {failedCount > 0 ? ` · ${failedCount} failed` : ""}
          </ProgressLabel>
          <ProgressValue className="text-xs" />
        </Progress>
      </div>

      {uploads.length === 0 ? (
        <p className="p-6 text-center text-sm text-muted-foreground">
          No uploads in progress.
        </p>
      ) : (
        <ul className="flex flex-col divide-y">
          {uploads.map((file) => {
            const Icon = file.icon;
            const failed = file.status === "failed";
            const done = file.status === "done";
            return (
              <li key={file.id} className="flex items-start gap-3 p-4">
                <span
                  aria-hidden="true"
                  className="flex size-9 shrink-0 items-center justify-center rounded-md bg-muted text-muted-foreground"
                >
                  <Icon className="size-4" />
                </span>
                <div className="flex min-w-0 flex-1 flex-col gap-1.5">
                  <Progress
                    value={file.status === "processing" ? null : file.progress}
                    getAriaValueText={(formatted, value) =>
                      value === null
                        ? `${file.name}: ${STATUS_TEXT.processing}`
                        : `${file.name}: ${STATUS_TEXT[file.status]}, ${formatted}`
                    }
                    className={cn(
                      "gap-x-2 gap-y-1.5 [&[data-indeterminate]_[data-slot=progress-indicator]]:w-full [&[data-indeterminate]_[data-slot=progress-indicator]]:animate-pulse motion-reduce:[&[data-indeterminate]_[data-slot=progress-indicator]]:animate-none",
                      failed &&
                        "[&_[data-slot=progress-indicator]]:bg-destructive",
                      done && "[&_[data-slot=progress-track]]:hidden",
                    )}
                  >
                    <ProgressLabel className="min-w-0 flex-1 truncate">
                      {file.name}
                    </ProgressLabel>
                    <span
                      className={cn(
                        "flex w-full items-center gap-1.5 text-xs text-muted-foreground tabular-nums",
                        failed && "text-destructive",
                      )}
                    >
                      {done ? (
                        <CircleCheckIcon
                          aria-hidden="true"
                          className="size-3.5 text-success"
                        />
                      ) : null}
                      <span>{describe(file)}</span>
                      {file.status === "uploading" ? (
                        <ProgressValue className="text-xs" />
                      ) : null}
                    </span>
                  </Progress>
                </div>
                {failed ? (
                  <Button
                    variant="ghost"
                    size="icon-sm"
                    aria-label={`Retry ${file.name}`}
                    onClick={() => retry(file.id)}
                  >
                    <RotateCwIcon aria-hidden="true" />
                  </Button>
                ) : null}
                {done ? null : (
                  <Button
                    variant="ghost"
                    size="icon-sm"
                    aria-label={`Cancel ${file.name}`}
                    onClick={() => remove(file.id)}
                  >
                    <XIcon aria-hidden="true" />
                  </Button>
                )}
              </li>
            );
          })}
        </ul>
      )}
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import {
  CircleCheckIcon,
  CircleDashedIcon,
  CircleSlashIcon,
  GitCommitHorizontalIcon,
  LoaderCircleIcon,
} from "lucide-react";
import { cn } from "cn";

import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

const STAGES = [
  {
    id: "install",
    label: "Install dependencies",
    speed: 22,
    log: "pnpm install --frozen-lockfile · 1,284 packages",
  },
  {
    id: "build",
    label: "Build",
    speed: 9,
    log: "next build · compiling 214 routes",
  },
  {
    id: "test",
    label: "Run tests",
    speed: 14,
    log: "vitest run · 612 passed",
  },
  {
    id: "upload",
    label: "Upload static assets",
    speed: 26,
    log: "uploading 1,903 files to edge cache",
  },
  {
    id: "promote",
    label: "Promote to production",
    speed: 34,
    log: "switching alias app.northwind.dev",
  },
];

const TICK_MS = 300;

type Run = {
  stage: number;
  stageProgress: number;
  elapsed: number;
  status: "running" | "done" | "canceled";
};

const START: Run = { stage: 1, stageProgress: 35, elapsed: 41.4, status: "running" };

function advance(run: Run): Run {
  if (run.status !== "running") return run;
  const elapsed = run.elapsed + TICK_MS / 1000;
  const stageProgress = run.stageProgress + STAGES[run.stage].speed;
  if (stageProgress < 100) return { ...run, elapsed, stageProgress };
  if (run.stage === STAGES.length - 1) {
    return { ...run, elapsed, stageProgress: 100, status: "done" };
  }
  return { ...run, elapsed, stage: run.stage + 1, stageProgress: 0 };
}

function formatElapsed(seconds: number) {
  const whole = Math.floor(seconds);
  return `${Math.floor(whole / 60)}m ${String(whole % 60).padStart(2, "0")}s`;
}

export default function Progress10() {
  const [run, setRun] = React.useState<Run>(START);

  React.useEffect(() => {
    if (run.status !== "running") return;
    const timer = setInterval(() => setRun(advance), TICK_MS);
    return () => clearInterval(timer);
  }, [run.status]);

  const overall =
    ((run.stage * 100 + run.stageProgress) / (STAGES.length * 100)) * 100;

  const badge = {
    running: { label: "Building", dot: "bg-primary" },
    done: { label: "Ready", dot: "bg-success" },
    canceled: { label: "Canceled", dot: "bg-muted-foreground" },
  }[run.status];

  return (
    <section
      aria-labelledby="progress-10-title"
      className="flex w-full max-w-md flex-col rounded-xl border bg-card text-card-foreground"
    >
      <header className="flex flex-col gap-4 p-4">
        <div className="flex items-start justify-between gap-3">
          <div className="flex min-w-0 flex-col gap-1">
            <h3 id="progress-10-title" className="font-medium">
              Production deployment
            </h3>
            <p className="flex min-w-0 items-center gap-1.5 text-xs text-muted-foreground">
              <GitCommitHorizontalIcon
                aria-hidden="true"
                className="size-3.5 shrink-0"
              />
              <span className="shrink-0 font-mono">a1f9c2e</span>
              <span className="truncate">Fix invoice rounding on annual plans</span>
            </p>
          </div>
          <Badge variant="outline" className="shrink-0">
            <span
              aria-hidden="true"
              className={cn("size-1.5 rounded-full", badge.dot)}
            />
            {badge.label}
          </Badge>
        </div>

        <Progress
          value={overall}
          getAriaValueText={(formatted) =>
            run.status === "canceled"
              ? `Canceled at ${formatted}`
              : `${formatted} deployed, stage ${run.stage + 1} of ${STAGES.length}`
          }
          className={cn(
            "gap-2 [&_[data-slot=progress-track]]:h-2",
            run.status === "done" &&
              "[&_[data-slot=progress-indicator]]:bg-success",
            run.status === "canceled" &&
              "[&_[data-slot=progress-indicator]]:bg-muted-foreground/50",
          )}
        >
          <ProgressLabel className="text-xs font-normal text-muted-foreground">
            {run.status === "done" ? "Completed in " : "Elapsed "}
            <span className="font-medium text-foreground tabular-nums">
              {formatElapsed(run.elapsed)}
            </span>
          </ProgressLabel>
          <ProgressValue className="text-xs" />
        </Progress>
      </header>

      <ol className="flex flex-col border-t py-2">
        {STAGES.map((stage, index) => {
          const state =
            index < run.stage || run.status === "done"
              ? "done"
              : index === run.stage
                ? run.status === "canceled"
                  ? "canceled"
                  : "active"
                : "pending";
          return (
            <li
              key={stage.id}
              aria-current={state === "active" ? "step" : undefined}
              className={cn(
                "flex items-start gap-3 px-4 py-2",
                state === "active" && "bg-muted/50",
              )}
            >
              {state === "done" ? (
                <CircleCheckIcon
                  aria-hidden="true"
                  className="mt-0.5 size-4 shrink-0 text-success"
                />
              ) : state === "active" ? (
                <LoaderCircleIcon
                  aria-hidden="true"
                  className="mt-0.5 size-4 shrink-0 animate-spin text-primary motion-reduce:animate-none"
                />
              ) : state === "canceled" ? (
                <CircleSlashIcon
                  aria-hidden="true"
                  className="mt-0.5 size-4 shrink-0 text-muted-foreground"
                />
              ) : (
                <CircleDashedIcon
                  aria-hidden="true"
                  className="mt-0.5 size-4 shrink-0 text-muted-foreground/60"
                />
              )}
              <div className="flex min-w-0 flex-1 flex-col gap-1.5">
                <span
                  className={cn(
                    "text-sm",
                    state === "pending" && "text-muted-foreground",
                  )}
                >
                  {stage.label}
                  <span className="sr-only">
                    {state === "done"
                      ? " (complete)"
                      : state === "pending"
                        ? " (pending)"
                        : state === "canceled"
                          ? " (canceled)"
                          : ""}
                  </span>
                </span>
                {state === "active" ? (
                  <>
                    <Progress
                      value={Math.min(run.stageProgress, 100)}
                      aria-label={`${stage.label} progress`}
                      className="[&_[data-slot=progress-track]]:bg-background"
                    />
                    <code className="truncate font-mono text-xs text-muted-foreground">
                      {stage.log}
                    </code>
                  </>
                ) : null}
              </div>
            </li>
          );
        })}
      </ol>

      <footer className="flex items-center justify-end gap-2 border-t p-4">
        {run.status === "running" ? (
          <Button
            variant="outline"
            aria-label="Cancel deployment"
            onClick={() =>
              setRun((current) => ({ ...current, status: "canceled" }))
            }
          >
            Cancel
            <span className="hidden sm:inline"> deployment</span>
          </Button>
        ) : (
          <Button
            variant="outline"
            onClick={() =>
              setRun({ stage: 0, stageProgress: 0, elapsed: 0, status: "running" })
            }
          >
            Redeploy
          </Button>
        )}
        <Button disabled={run.status !== "done"}>Visit site</Button>
      </footer>
    </section>
  );
}