Message

TSX
"use client";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageHeader,
} from "@/components/ui/message";

const entries = [
  {
    id: "m1",
    author: "Priya Raman",
    initials: "PR",
    time: "10:02",
    body: "Staging is green again. The flaky checkout test was waiting on a font request that never resolved in CI.",
  },
  {
    id: "m2",
    author: "Marcus Hale",
    initials: "MH",
    time: "10:05",
    body: "Nice catch. Can we mock fonts globally in the test setup so this does not come back with the next suite?",
  },
  {
    id: "m3",
    author: "Priya Raman",
    initials: "PR",
    time: "10:07",
    body: "Already on it — the open PR stubs every font request and adds a guard that fails loudly on unmocked network calls.",
  },
];

export default function Message01() {
  return (
    <div className="flex w-full max-w-lg flex-col gap-5">
      {entries.map((entry) => (
        <Message key={entry.id}>
          <MessageAvatar className="self-start">
            <Avatar className="size-8">
              <AvatarFallback>{entry.initials}</AvatarFallback>
            </Avatar>
          </MessageAvatar>
          <MessageContent className="gap-1">
            <MessageHeader className="gap-2">
              <span className="text-foreground">{entry.author}</span>
              <time className="font-normal tabular-nums">{entry.time}</time>
            </MessageHeader>
            <Bubble variant="ghost">
              <BubbleContent>{entry.body}</BubbleContent>
            </Bubble>
          </MessageContent>
        </Message>
      ))}
    </div>
  );
}

TSX
"use client";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card";
import { Marker, MarkerContent } from "@/components/ui/marker";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageFooter,
} from "@/components/ui/message";

export default function Message02() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>Onboarding copy review</CardTitle>
        <CardDescription>Jonas Weber and you</CardDescription>
      </CardHeader>
      <CardContent className="flex flex-col gap-4">
        <Marker variant="separator">
          <MarkerContent>Today</MarkerContent>
        </Marker>
        <Message>
          <MessageAvatar>
            <Avatar size="sm">
              <AvatarFallback>JW</AvatarFallback>
            </Avatar>
          </MessageAvatar>
          <MessageContent>
            <Bubble variant="outline">
              <BubbleContent>
                Step two still says “Invite your crew”. Legal asked us to use
                “Invite teammates” everywhere.
              </BubbleContent>
            </Bubble>
            <MessageFooter>Jonas · 14:18</MessageFooter>
          </MessageContent>
        </Message>
        <Message align="end">
          <MessageContent>
            <Bubble variant="secondary" align="end">
              <BubbleContent>
                Updated in all three locales. Shipping with tonight’s release.
              </BubbleContent>
            </Bubble>
            <MessageFooter>14:21</MessageFooter>
          </MessageContent>
        </Message>
      </CardContent>
    </Card>
  );
}

TSX
"use client";

import * as React from "react";
import {
  AlertCircleIcon,
  CheckIcon,
  DownloadIcon,
  FileTextIcon,
  RotateCwIcon,
} from "lucide-react";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import {
  Attachment,
  AttachmentAction,
  AttachmentActions,
  AttachmentContent,
  AttachmentDescription,
  AttachmentMedia,
  AttachmentTitle,
} from "@/components/ui/attachment";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageFooter,
  MessageHeader,
} from "@/components/ui/message";
import { Spinner } from "@/components/ui/spinner";

const photos = [
  { id: "p1", alt: "Living room with the new oak shelving installed" },
  { id: "p2", alt: "Close-up of the shelf bracket finish" },
  { id: "p3", alt: "Kitchen corner before the countertop fitting" },
];

type Upload = {
  id: string;
  name: string;
  state: "uploading" | "error" | "done";
  progress: number;
};

const initialUploads: Upload[] = [
  { id: "u1", name: "materials-list.xlsx", state: "uploading", progress: 64 },
  { id: "u2", name: "floor-plan-v3.pdf", state: "error", progress: 0 },
];

export default function Message03() {
  const [downloaded, setDownloaded] = React.useState(false);
  const [uploads, setUploads] = React.useState(initialUploads);
  const uploading = uploads.some((upload) => upload.state === "uploading");
  const failed = uploads.filter((upload) => upload.state === "error").length;

  // Advance every in-flight upload until it completes.
  React.useEffect(() => {
    if (!uploading) return;
    const timer = window.setInterval(() => {
      setUploads((current) =>
        current.map((upload) => {
          if (upload.state !== "uploading") return upload;
          const progress = Math.min(upload.progress + 12, 100);
          return {
            ...upload,
            progress,
            state: progress === 100 ? "done" : "uploading",
          };
        }),
      );
    }, 300);
    return () => window.clearInterval(timer);
  }, [uploading]);

  React.useEffect(() => {
    if (!downloaded) return;
    const timer = window.setTimeout(() => setDownloaded(false), 2000);
    return () => window.clearTimeout(timer);
  }, [downloaded]);

  function retry(id: string) {
    setUploads((current) =>
      current.map((upload) =>
        upload.id === id
          ? { ...upload, state: "uploading", progress: 0 }
          : upload,
      ),
    );
  }

  return (
    <div className="flex w-full max-w-md flex-col gap-6">
      <Message>
        <MessageAvatar>
          <Avatar className="size-8">
            <AvatarFallback>TB</AvatarFallback>
          </Avatar>
        </MessageAvatar>
        <MessageContent>
          <MessageHeader>Tomás Bauer · Site visit</MessageHeader>
          <div className="grid w-full max-w-72 grid-cols-2 gap-1 overflow-hidden rounded-3xl">
            {photos.map((photo, index) => (
              <img
                key={photo.id}
                src="/placeholder.svg"
                alt={photo.alt}
                className={
                  index === 0
                    ? "col-span-2 aspect-video w-full bg-muted object-cover"
                    : "aspect-square w-full bg-muted object-cover"
                }
              />
            ))}
          </div>
          <Bubble variant="muted">
            <BubbleContent>
              Shelving is in. Countertop fitting moves to Monday.
            </BubbleContent>
          </Bubble>
        </MessageContent>
      </Message>
      <Message align="end">
        <MessageContent>
          <Bubble align="end">
            <BubbleContent>
              Here are the signed quote and the materials list.
            </BubbleContent>
          </Bubble>
          <div className="flex w-full max-w-72 flex-col gap-2 self-end">
            <Attachment className="w-full">
              <AttachmentMedia>
                <FileTextIcon aria-hidden="true" />
              </AttachmentMedia>
              <AttachmentContent>
                <AttachmentTitle>quote-signed.pdf</AttachmentTitle>
                <AttachmentDescription>PDF · 412 KB</AttachmentDescription>
              </AttachmentContent>
              <AttachmentActions>
                <AttachmentAction
                  aria-label={
                    downloaded
                      ? "quote-signed.pdf downloaded"
                      : "Download quote-signed.pdf"
                  }
                  onClick={() => setDownloaded(true)}
                >
                  {downloaded ? (
                    <CheckIcon aria-hidden="true" className="text-success" />
                  ) : (
                    <DownloadIcon aria-hidden="true" />
                  )}
                </AttachmentAction>
              </AttachmentActions>
            </Attachment>
            {uploads.map((upload) => (
              <Attachment
                key={upload.id}
                state={upload.state}
                className="w-full"
              >
                <AttachmentMedia>
                  {upload.state === "uploading" ? (
                    <Spinner />
                  ) : (
                    <FileTextIcon aria-hidden="true" />
                  )}
                </AttachmentMedia>
                <AttachmentContent>
                  <AttachmentTitle>{upload.name}</AttachmentTitle>
                  <AttachmentDescription>
                    {upload.state === "uploading"
                      ? `Uploading · ${upload.progress}%`
                      : upload.state === "error"
                        ? "Upload failed · connection lost"
                        : "Uploaded"}
                  </AttachmentDescription>
                </AttachmentContent>
                {upload.state === "error" && (
                  <AttachmentActions>
                    <AttachmentAction
                      aria-label={`Retry ${upload.name}`}
                      onClick={() => retry(upload.id)}
                    >
                      <RotateCwIcon aria-hidden="true" />
                    </AttachmentAction>
                  </AttachmentActions>
                )}
              </Attachment>
            ))}
          </div>
          <MessageFooter
            aria-live="polite"
            className={failed > 0 ? "gap-1 text-destructive" : "gap-1"}
          >
            {failed > 0 ? (
              <>
                <AlertCircleIcon aria-hidden="true" className="size-3.5" />
                {failed === 1 ? "1 file needs" : `${failed} files need`}{" "}
                attention
              </>
            ) : uploading ? (
              "Uploading…"
            ) : (
              "All files sent"
            )}
          </MessageFooter>
        </MessageContent>
      </Message>
    </div>
  );
}

TSX
"use client";

import * as React from "react";
import { ChevronDownIcon, SendHorizontalIcon } from "lucide-react";

import { Avatar, AvatarFallback, AvatarGroup } from "@/components/ui/avatar";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import { Button } from "@/components/ui/button";
import {
  Collapsible,
  CollapsibleContent,
  CollapsibleTrigger,
} from "@/components/ui/collapsible";
import {
  InputGroup,
  InputGroupAddon,
  InputGroupButton,
  InputGroupInput,
} from "@/components/ui/input-group";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageHeader,
} from "@/components/ui/message";

type Reply = {
  id: string;
  author: string;
  initials: string;
  time: string;
  body: string;
};

const initialReplies: Reply[] = [
  {
    id: "r1",
    author: "Kofi Mensah",
    initials: "KM",
    time: "14:12",
    body: "The migration note under Breaking changes needs the new env var name.",
  },
  {
    id: "r2",
    author: "Lea Fischer",
    initials: "LF",
    time: "14:20",
    body: "Added. I also linked the rollback guide from the top.",
  },
  {
    id: "r3",
    author: "Kofi Mensah",
    initials: "KM",
    time: "14:31",
    body: "Looks good to me. Ship it after the 15:00 freeze lifts.",
  },
];

export default function Message04() {
  const [replies, setReplies] = React.useState(initialReplies);
  const [open, setOpen] = React.useState(false);
  const [draft, setDraft] = React.useState("");

  const participants = Array.from(
    new Map(replies.map((reply) => [reply.initials, reply])).values(),
  );
  const last = replies[replies.length - 1];

  function send(event: React.FormEvent<HTMLFormElement>) {
    event.preventDefault();
    const body = draft.trim();
    if (!body) return;
    setReplies((current) => [
      ...current,
      {
        id: `r${current.length + 1}`,
        author: "You",
        initials: "YO",
        time: "Just now",
        body,
      },
    ]);
    setDraft("");
  }

  return (
    <div className="flex w-full max-w-md flex-col">
      <Message>
        <MessageAvatar className="self-start">
          <Avatar className="size-8">
            <AvatarFallback>ID</AvatarFallback>
          </Avatar>
        </MessageAvatar>
        <MessageContent className="gap-1.5">
          <MessageHeader className="gap-1.5">
            <span className="text-foreground">Inês Duarte</span>
            <span aria-hidden="true">·</span>
            <time>14:05</time>
          </MessageHeader>
          <Bubble variant="ghost">
            <BubbleContent>
              Release notes for 4.2 are drafted in the handbook. Please review
              before we publish this afternoon.
            </BubbleContent>
          </Bubble>
          <Collapsible open={open} onOpenChange={setOpen}>
            <CollapsibleTrigger
              render={
                <Button
                  variant="ghost"
                  size="sm"
                  className="-ml-2 h-auto max-w-full gap-2 py-1 text-left"
                />
              }
            >
              <AvatarGroup>
                {participants.slice(0, 3).map((person) => (
                  <Avatar key={person.initials} size="sm">
                    <AvatarFallback>{person.initials}</AvatarFallback>
                  </Avatar>
                ))}
              </AvatarGroup>
              <span className="font-semibold text-primary">
                {replies.length} replies
              </span>
              <span className="min-w-0 truncate text-xs font-normal text-muted-foreground max-sm:hidden">
                Last reply {last.time}
              </span>
              <ChevronDownIcon
                data-icon="inline-end"
                aria-hidden="true"
                className="text-muted-foreground transition-transform group-data-panel-open/button:rotate-180"
              />
            </CollapsibleTrigger>
            <CollapsibleContent>
              <div className="mt-2 flex flex-col gap-3 border-l border-border pl-3">
                {replies.map((reply) => (
                  <Message key={reply.id}>
                    <MessageAvatar className="self-start">
                      <Avatar size="sm">
                        <AvatarFallback>{reply.initials}</AvatarFallback>
                      </Avatar>
                    </MessageAvatar>
                    <MessageContent className="gap-0.5">
                      <MessageHeader className="gap-1.5">
                        <span className="text-foreground">{reply.author}</span>
                        <time className="font-normal">{reply.time}</time>
                      </MessageHeader>
                      <Bubble variant="ghost">
                        <BubbleContent>{reply.body}</BubbleContent>
                      </Bubble>
                    </MessageContent>
                  </Message>
                ))}
                <form onSubmit={send}>
                  <InputGroup className="h-9">
                    <InputGroupInput
                      aria-label="Reply in thread"
                      placeholder="Reply in thread…"
                      value={draft}
                      onChange={(event) => setDraft(event.target.value)}
                    />
                    <InputGroupAddon align="inline-end">
                      <InputGroupButton
                        type="submit"
                        size="icon-xs"
                        variant="default"
                        disabled={!draft.trim()}
                        aria-label="Send reply"
                      >
                        <SendHorizontalIcon aria-hidden="true" />
                      </InputGroupButton>
                    </InputGroupAddon>
                  </InputGroup>
                </form>
              </div>
            </CollapsibleContent>
          </Collapsible>
        </MessageContent>
      </Message>
    </div>
  );
}

TSX
"use client";

import * as React from "react";
import { PencilIcon, Trash2Icon, Undo2Icon } from "lucide-react";

import { Bubble, BubbleContent } from "@/components/ui/bubble";
import { Button } from "@/components/ui/button";
import {
  Message,
  MessageContent,
  MessageFooter,
} from "@/components/ui/message";
import { Textarea } from "@/components/ui/textarea";

type Mode = "view" | "edit" | "deleted";

const originalText =
  "Standup moves to 9:30 tomorrow so the design team can join from Lisbon.";

export default function Message05() {
  const [mode, setMode] = React.useState<Mode>("view");
  const [text, setText] = React.useState(originalText);
  const [draft, setDraft] = React.useState(originalText);
  const [edited, setEdited] = React.useState(false);
  const textareaRef = React.useRef<HTMLTextAreaElement>(null);
  const editButtonRef = React.useRef<HTMLButtonElement>(null);
  const undoButtonRef = React.useRef<HTMLButtonElement>(null);

  React.useEffect(() => {
    if (mode === "edit") {
      const node = textareaRef.current;
      node?.focus();
      node?.setSelectionRange(node.value.length, node.value.length);
    }
    // Keep focus on the only remaining control after a delete.
    if (mode === "deleted") undoButtonRef.current?.focus();
  }, [mode]);

  const trimmed = draft.trim();
  const unchanged = trimmed === text;

  function startEdit() {
    setDraft(text);
    setMode("edit");
  }

  function cancel() {
    setMode("view");
    requestAnimationFrame(() => editButtonRef.current?.focus());
  }

  function save() {
    if (!trimmed) return;
    if (!unchanged) {
      setText(trimmed);
      setEdited(true);
    }
    cancel();
  }

  return (
    <div className="flex w-full max-w-sm flex-col">
      <Message align="end">
        <MessageContent className="gap-1.5">
          {mode === "view" && (
            <>
              <Bubble align="end">
                <BubbleContent>{text}</BubbleContent>
              </Bubble>
              <MessageFooter className="gap-1">
                <span className="mr-1 tabular-nums">
                  {edited ? "Edited · 11:06" : "11:04"}
                </span>
                <Button
                  ref={editButtonRef}
                  variant="ghost"
                  size="xs"
                  onClick={startEdit}
                >
                  <PencilIcon data-icon="inline-start" aria-hidden="true" />
                  Edit
                </Button>
                <Button
                  variant="ghost"
                  size="xs"
                  className="hover:text-destructive"
                  onClick={() => setMode("deleted")}
                >
                  <Trash2Icon data-icon="inline-start" aria-hidden="true" />
                  Delete
                </Button>
              </MessageFooter>
            </>
          )}
          {mode === "edit" && (
            <form
              className="flex w-full flex-col gap-2"
              onSubmit={(event) => {
                event.preventDefault();
                save();
              }}
            >
              <label htmlFor="message-05-edit" className="sr-only">
                Edit message
              </label>
              <Textarea
                ref={textareaRef}
                id="message-05-edit"
                value={draft}
                aria-invalid={!trimmed || undefined}
                aria-describedby="message-05-hint"
                onChange={(event) => setDraft(event.target.value)}
                onKeyDown={(event) => {
                  if (event.key === "Escape") {
                    event.preventDefault();
                    cancel();
                  }
                  if (
                    event.key === "Enter" &&
                    (event.metaKey || event.ctrlKey)
                  ) {
                    event.preventDefault();
                    save();
                  }
                }}
                className="min-h-20 resize-none rounded-2xl"
              />
              <div className="flex items-center justify-between gap-2">
                <span
                  id="message-05-hint"
                  className="text-xs text-muted-foreground"
                >
                  {trimmed
                    ? "Esc to cancel · Ctrl or ⌘ + Enter to save"
                    : "A message cannot be empty"}
                </span>
                <div className="flex gap-1.5">
                  <Button
                    type="button"
                    variant="ghost"
                    size="sm"
                    onClick={cancel}
                  >
                    Cancel
                  </Button>
                  <Button
                    type="submit"
                    size="sm"
                    disabled={!trimmed || unchanged}
                  >
                    Save
                  </Button>
                </div>
              </div>
            </form>
          )}
          {mode === "deleted" && (
            <>
              <Bubble align="end" variant="outline">
                <BubbleContent className="border-dashed text-muted-foreground italic">
                  You deleted this message
                </BubbleContent>
              </Bubble>
              <MessageFooter>
                <Button
                  variant="ghost"
                  size="xs"
                  ref={undoButtonRef}
                  onClick={() => {
                    setMode("view");
                    requestAnimationFrame(() => editButtonRef.current?.focus());
                  }}
                >
                  <Undo2Icon data-icon="inline-start" aria-hidden="true" />
                  Undo
                </Button>
              </MessageFooter>
            </>
          )}
        </MessageContent>
      </Message>
    </div>
  );
}

TSX
"use client";

import * as React from "react";
import { CircleCheck, FileCode2, RotateCcw } from "lucide-react";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Badge } from "@/components/ui/badge";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import { Button } from "@/components/ui/button";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageGroup,
  MessageHeader,
} from "@/components/ui/message";
import { Textarea } from "@/components/ui/textarea";

type Comment = {
  id: string;
  author: string;
  initials: string;
  time: string;
  body: string;
};

const initialComments: Comment[] = [
  {
    id: "c1",
    author: "Priya Raman",
    initials: "PR",
    time: "2h ago",
    body: "This retries forever if the webhook endpoint is down. Can we cap it and surface the failure?",
  },
  {
    id: "c2",
    author: "Marcus Lee",
    initials: "ML",
    time: "1h ago",
    body: "Good catch. Capping at 5 attempts with exponential backoff, then marking the delivery as failed.",
  },
];

export default function Message06() {
  const [comments, setComments] = React.useState(initialComments);
  const [draft, setDraft] = React.useState("");
  const [resolved, setResolved] = React.useState(false);

  const submit = (event: React.FormEvent<HTMLFormElement>) => {
    event.preventDefault();
    const body = draft.trim();
    if (!body) return;
    setComments((prev) => [
      ...prev,
      {
        id: `c${prev.length + 1}`,
        author: "You",
        initials: "YO",
        time: "Just now",
        body,
      },
    ]);
    setDraft("");
  };

  return (
    <section
      aria-label="Review thread on webhooks/deliver.ts"
      className="w-full max-w-md overflow-hidden rounded-xl border bg-card text-card-foreground"
    >
      <header className="flex items-center gap-2 border-b bg-muted/50 px-3 py-2">
        <FileCode2
          aria-hidden="true"
          className="size-4 shrink-0 text-muted-foreground"
        />
        <span className="min-w-0 flex-1 truncate font-mono text-xs">
          src/webhooks/deliver.ts
        </span>
        {resolved ? (
          <Badge variant="secondary">
            <CircleCheck aria-hidden="true" />
            Resolved
          </Badge>
        ) : (
          <Badge variant="outline">{comments.length} comments</Badge>
        )}
      </header>

      <pre className="overflow-x-auto border-b bg-background px-3 py-2 font-mono text-xs leading-relaxed">
        <code>
          <span className="text-muted-foreground">41 </span>
          {"  while (!ok) {\n"}
          <span className="text-muted-foreground">42 </span>
          {"    ok = await send(event);\n"}
          <span className="text-muted-foreground">43 </span>
          {"  }"}
        </code>
      </pre>

      {resolved ? (
        <div className="flex items-center justify-between gap-3 px-3 py-3 text-sm">
          <p className="text-muted-foreground">
            You resolved this conversation.
          </p>
          <Button variant="ghost" size="sm" onClick={() => setResolved(false)}>
            <RotateCcw data-icon="inline-start" aria-hidden="true" />
            Reopen
          </Button>
        </div>
      ) : (
        <div className="flex flex-col gap-4 p-3">
          <MessageGroup className="gap-4">
            {comments.map((comment) => (
              <Message key={comment.id}>
                <MessageAvatar className="self-start">
                  <Avatar size="sm">
                    <AvatarFallback>{comment.initials}</AvatarFallback>
                  </Avatar>
                </MessageAvatar>
                <MessageContent className="gap-1">
                  <MessageHeader className="gap-1.5 px-0">
                    <span className="text-foreground">{comment.author}</span>
                    <span aria-hidden="true">·</span>
                    <time>{comment.time}</time>
                  </MessageHeader>
                  <Bubble variant="ghost">
                    <BubbleContent>{comment.body}</BubbleContent>
                  </Bubble>
                </MessageContent>
              </Message>
            ))}
          </MessageGroup>

          <form onSubmit={submit} className="flex flex-col gap-2">
            <label htmlFor="message-06-reply" className="sr-only">
              Reply to thread
            </label>
            <Textarea
              id="message-06-reply"
              value={draft}
              onChange={(event) => setDraft(event.target.value)}
              placeholder="Reply…"
              className="min-h-16 text-sm"
            />
            <div className="flex flex-wrap justify-end gap-2">
              <Button
                type="button"
                variant="outline"
                size="sm"
                onClick={() => setResolved(true)}
              >
                Resolve conversation
              </Button>
              <Button type="submit" size="sm" disabled={!draft.trim()}>
                Comment
              </Button>
            </div>
          </form>
        </div>
      )}
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import { LanguagesIcon } from "lucide-react";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import { Button } from "@/components/ui/button";
import { Label } from "@/components/ui/label";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageFooter,
  MessageHeader,
} from "@/components/ui/message";
import { Switch } from "@/components/ui/switch";

type Line = {
  id: string;
  from: "customer" | "agent";
  time: string;
  original: string;
  translated: string;
};

const lines: Line[] = [
  {
    id: "l1",
    from: "customer",
    time: "09:31",
    original:
      "Hallo, mein Paket wurde als zugestellt markiert, aber es ist nicht angekommen.",
    translated: "Hi, my parcel was marked as delivered, but it never arrived.",
  },
  {
    id: "l2",
    from: "agent",
    time: "09:33",
    original:
      "Das tut mir leid. Ich habe beim Kurier einen Nachforschungsauftrag eröffnet.",
    translated: "I'm sorry about that. I've opened a trace with the courier.",
  },
  {
    id: "l3",
    from: "customer",
    time: "09:34",
    original: "Danke! Kann ich stattdessen eine Rückerstattung bekommen?",
    translated: "Thanks! Can I get a refund instead?",
  },
];

export default function Message07() {
  const [autoTranslate, setAutoTranslate] = React.useState(true);
  const [flipped, setFlipped] = React.useState<string[]>([]);

  function toggleLine(id: string) {
    setFlipped((current) =>
      current.includes(id)
        ? current.filter((item) => item !== id)
        : [...current, id],
    );
  }

  return (
    <section
      aria-label="Conversation with Lukas Becker"
      className="flex w-full max-w-md flex-col gap-4 rounded-2xl border bg-card p-4 text-card-foreground"
    >
      <div className="flex items-center justify-between gap-3 border-b pb-3">
        <div className="flex min-w-0 items-center gap-2 text-sm">
          <LanguagesIcon
            aria-hidden="true"
            className="size-4 shrink-0 text-muted-foreground"
          />
          <span className="truncate">Customer writes in German</span>
        </div>
        <Label className="shrink-0 gap-2 text-xs font-normal text-muted-foreground">
          Auto-translate
          <Switch
            size="sm"
            checked={autoTranslate}
            onCheckedChange={(checked) => {
              setAutoTranslate(checked);
              setFlipped([]);
            }}
          />
        </Label>
      </div>

      {lines.map((line) => {
        const agent = line.from === "agent";
        // Each line can be flipped away from the global setting.
        const showTranslation = autoTranslate !== flipped.includes(line.id);
        return (
          <Message key={line.id} align={agent ? "end" : "start"}>
            {!agent && (
              <MessageAvatar>
                <Avatar className="size-8">
                  <AvatarFallback>LB</AvatarFallback>
                </Avatar>
              </MessageAvatar>
            )}
            <MessageContent className="gap-1.5">
              {!agent && (
                <MessageHeader className="gap-1.5">
                  <span>Lukas Becker</span>
                  <span aria-hidden="true">·</span>
                  <time>{line.time}</time>
                </MessageHeader>
              )}
              <Bubble
                align={agent ? "end" : "start"}
                variant={agent ? "default" : "muted"}
              >
                <BubbleContent lang={showTranslation ? "en" : "de"}>
                  {showTranslation ? line.translated : line.original}
                </BubbleContent>
              </Bubble>
              <MessageFooter className="gap-1 max-sm:flex-col max-sm:items-start max-sm:gap-0 max-sm:group-data-[align=end]/message:items-end">
                <span>
                  {agent
                    ? showTranslation
                      ? `${line.time} · Sent in German`
                      : `${line.time} · What Lukas sees`
                    : showTranslation
                      ? "Translated from German"
                      : "Original"}
                </span>
                <span aria-hidden="true" className="max-sm:hidden">
                  ·
                </span>
                <Button
                  variant="link"
                  size="xs"
                  className="h-auto px-0 text-xs text-muted-foreground hover:text-foreground"
                  onClick={() => toggleLine(line.id)}
                >
                  {showTranslation ? "Show original" : "Show translation"}
                </Button>
              </MessageFooter>
            </MessageContent>
          </Message>
        );
      })}
    </section>
  );
}

TSX
"use client";

import * as React from "react";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import { Button } from "@/components/ui/button";
import { Checkbox } from "@/components/ui/checkbox";
import { Label } from "@/components/ui/label";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageFooter,
  MessageGroup,
  MessageHeader,
} from "@/components/ui/message";
import {
  Progress,
  ProgressLabel,
  ProgressValue,
} from "@/components/ui/progress";

const tasks = [
  { id: "profile", label: "Add a profile photo and your time zone" },
  { id: "slack", label: "Connect Slack for deploy alerts" },
  { id: "project", label: "Star the Checkout Revamp project" },
  { id: "standup", label: "Join Thursday's design standup" },
];

export default function Message08() {
  const [done, setDone] = React.useState<string[]>(["profile"]);
  const [waved, setWaved] = React.useState(false);
  const percent = Math.round((done.length / tasks.length) * 100);
  const complete = done.length === tasks.length;

  const toggle = (id: string, checked: boolean) => {
    setDone((prev) =>
      checked ? [...prev, id] : prev.filter((item) => item !== id),
    );
  };

  return (
    <section
      aria-label="Welcome message from your onboarding buddy"
      className="flex w-full max-w-sm flex-col gap-4 rounded-2xl border bg-card p-4 text-card-foreground"
    >
      <Message>
        <MessageAvatar>
          <Avatar>
            <AvatarFallback>SK</AvatarFallback>
          </Avatar>
        </MessageAvatar>
        <MessageContent>
          <MessageHeader>Sofia Kim · Your onboarding buddy</MessageHeader>
          <MessageGroup>
            <Bubble variant="tinted">
              <BubbleContent>
                Welcome to the team, Alex! I put together your first-week
                checklist.
              </BubbleContent>
            </Bubble>
            <Bubble variant="outline" className="w-full">
              <BubbleContent className="flex w-full flex-col gap-3 rounded-2xl">
                <Progress value={percent} className="gap-2">
                  <ProgressLabel className="text-xs font-medium">
                    {complete ? "All set" : "First week"}
                  </ProgressLabel>
                  <ProgressValue className="ml-auto text-xs text-muted-foreground tabular-nums" />
                </Progress>
                <ul className="flex flex-col gap-2.5">
                  {tasks.map((task) => {
                    const id = `message-08-${task.id}`;
                    const checked = done.includes(task.id);
                    return (
                      <li key={task.id} className="flex items-start gap-2.5">
                        <Checkbox
                          id={id}
                          checked={checked}
                          onCheckedChange={(value) => toggle(task.id, value)}
                          className="mt-0.5"
                        />
                        <Label
                          htmlFor={id}
                          className="text-sm leading-snug font-normal data-checked:text-muted-foreground data-checked:line-through"
                          data-checked={checked ? "" : undefined}
                        >
                          {task.label}
                        </Label>
                      </li>
                    );
                  })}
                </ul>
              </BubbleContent>
            </Bubble>
          </MessageGroup>
          <MessageFooter>Today at 09:12</MessageFooter>
        </MessageContent>
      </Message>

      {complete ? (
        <Message>
          <MessageAvatar>
            <Avatar>
              <AvatarFallback>SK</AvatarFallback>
            </Avatar>
          </MessageAvatar>
          <MessageContent>
            <Bubble variant="tinted">
              <BubbleContent>
                That was quick. See you at standup on Thursday!
              </BubbleContent>
            </Bubble>
          </MessageContent>
        </Message>
      ) : null}

      {waved ? (
        <Message align="end">
          <MessageContent>
            <Bubble align="end">
              <BubbleContent>Thanks Sofia, on it!</BubbleContent>
            </Bubble>
            <MessageFooter>Sent</MessageFooter>
          </MessageContent>
        </Message>
      ) : (
        <Button
          variant="outline"
          size="sm"
          className="self-end"
          onClick={() => setWaved(true)}
        >
          Reply “Thanks Sofia, on it!”
        </Button>
      )}
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import {
  BotIcon,
  FrownIcon,
  MehIcon,
  SmileIcon,
  UserRoundIcon,
} from "lucide-react";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Bubble, BubbleContent } from "@/components/ui/bubble";
import { Button } from "@/components/ui/button";
import { Marker, MarkerContent } from "@/components/ui/marker";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageFooter,
  MessageHeader,
} from "@/components/ui/message";
import { Spinner } from "@/components/ui/spinner";

type Stage = "bot" | "waiting" | "agent" | "ended";

const ratings = [
  { id: "bad", label: "Not helpful", icon: FrownIcon },
  { id: "okay", label: "Okay", icon: MehIcon },
  { id: "great", label: "Great", icon: SmileIcon },
];

function BotAvatar() {
  return (
    <MessageAvatar className="size-8 bg-secondary text-secondary-foreground">
      <BotIcon aria-hidden="true" className="size-4" />
    </MessageAvatar>
  );
}

function AgentAvatar() {
  return (
    <MessageAvatar>
      <Avatar className="size-8">
        <AvatarFallback>MO</AvatarFallback>
      </Avatar>
    </MessageAvatar>
  );
}

export default function Message09() {
  const [stage, setStage] = React.useState<Stage>("bot");
  const [rating, setRating] = React.useState<string | null>(null);
  const [agentJoined, setAgentJoined] = React.useState(false);

  React.useEffect(() => {
    if (stage !== "waiting") return;
    const timer = window.setTimeout(() => {
      setAgentJoined(true);
      setStage("agent");
    }, 1600);
    return () => window.clearTimeout(timer);
  }, [stage]);

  return (
    <section
      aria-label="Support chat"
      className="flex w-full max-w-sm flex-col gap-4 rounded-2xl border bg-card p-4 text-card-foreground"
    >
      <Message align="end">
        <MessageContent>
          <Bubble align="end">
            <BubbleContent>
              My invoice shows the wrong company name for our VAT filing.
            </BubbleContent>
          </Bubble>
        </MessageContent>
      </Message>

      <Message>
        <BotAvatar />
        <MessageContent>
          <MessageHeader>Help assistant</MessageHeader>
          <Bubble variant="muted">
            <BubbleContent>
              You can edit the billing name under Settings → Billing, but
              invoices already issued have to be reissued by our team.
            </BubbleContent>
          </Bubble>
          {stage === "bot" && (
            <div className="flex flex-wrap gap-2">
              <Button
                variant="outline"
                size="sm"
                onClick={() => setStage("waiting")}
              >
                <UserRoundIcon data-icon="inline-start" aria-hidden="true" />
                Talk to a person
              </Button>
              <Button
                variant="ghost"
                size="sm"
                onClick={() => setStage("ended")}
              >
                That solved it
              </Button>
            </div>
          )}
        </MessageContent>
      </Message>

      <div aria-live="polite" className="flex flex-col gap-4">
        {stage === "waiting" && (
          <Marker variant="separator" className="text-xs">
            <MarkerContent className="flex items-center gap-1.5">
              <Spinner className="size-3" />
              Connecting you to billing support · about 1 min
            </MarkerContent>
          </Marker>
        )}

        {(stage === "agent" || (stage === "ended" && agentJoined)) && (
          <>
            <Marker variant="separator" className="text-xs">
              <MarkerContent>Mia Okafor from Billing joined</MarkerContent>
            </Marker>
            <Message>
              <AgentAvatar />
              <MessageContent>
                <MessageHeader>Mia Okafor</MessageHeader>
                <Bubble variant="outline">
                  <BubbleContent>
                    Hi! I've reissued invoice INV-2291 with “Northwind Labs
                    GmbH”. It's in your inbox now.
                  </BubbleContent>
                </Bubble>
                <MessageFooter>09:48</MessageFooter>
              </MessageContent>
            </Message>
            {stage === "agent" && (
              <Button
                variant="outline"
                size="sm"
                className="self-center"
                onClick={() => setStage("ended")}
              >
                End chat
              </Button>
            )}
          </>
        )}

        {stage === "ended" && (
          <>
            <Marker variant="separator" className="text-xs">
              <MarkerContent>Chat ended</MarkerContent>
            </Marker>
            {rating ? (
              <p className="text-center text-sm text-muted-foreground">
                Thanks, your feedback goes straight to the support team.
              </p>
            ) : (
              <fieldset className="flex min-w-0 flex-col items-center gap-2">
                <legend className="mb-2 w-full text-center text-sm font-medium">
                  How was your support today?
                </legend>
                <div className="flex gap-2">
                  {ratings.map(({ id, label, icon: Icon }) => (
                    <Button
                      key={id}
                      variant="outline"
                      size="icon-lg"
                      className="rounded-full"
                      aria-label={label}
                      onClick={() => setRating(id)}
                    >
                      <Icon aria-hidden="true" />
                    </Button>
                  ))}
                </div>
              </fieldset>
            )}
          </>
        )}
      </div>
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import {
  ChevronLeft,
  Heart,
  Phone,
  PhoneOff,
  SendHorizontal,
} from "lucide-react";

import {
  Avatar,
  AvatarBadge,
  AvatarFallback,
} from "@/components/ui/avatar";
import {
  Bubble,
  BubbleContent,
  BubbleReactions,
} from "@/components/ui/bubble";
import { Button } from "@/components/ui/button";
import {
  InputGroup,
  InputGroupAddon,
  InputGroupButton,
  InputGroupInput,
} from "@/components/ui/input-group";
import {
  Message,
  MessageAvatar,
  MessageContent,
  MessageFooter,
  MessageGroup,
} from "@/components/ui/message";

type Line = { id: string; from: "leo" | "you"; text: string };

const seed: Line[] = [
  { id: "l1", from: "leo", text: "Landed! Grabbing my bag now." },
  { id: "l2", from: "leo", text: "Which exit are you parked at?" },
  { id: "l3", from: "you", text: "Arrivals, door 4. Grey hatchback." },
  { id: "l4", from: "leo", text: "Perfect, see you in 10 minutes" },
];

export default function Message10() {
  const [lines, setLines] = React.useState(seed);
  const [draft, setDraft] = React.useState("");
  const [liked, setLiked] = React.useState(false);
  const [calling, setCalling] = React.useState(false);
  const [inbox, setInbox] = React.useState(false);
  const logRef = React.useRef<HTMLDivElement>(null);

  React.useEffect(() => {
    const log = logRef.current;
    if (log && lines.length > seed.length) log.scrollTop = log.scrollHeight;
  }, [lines.length]);

  const send = (event: React.FormEvent<HTMLFormElement>) => {
    event.preventDefault();
    const text = draft.trim();
    if (!text) return;
    setLines((prev) => [
      ...prev,
      { id: `l${prev.length + 1}`, from: "you", text },
    ]);
    setDraft("");
  };

  // Consecutive lines from the same sender share one row.
  const groups = lines.reduce<Line[][]>((acc, line) => {
    const last = acc[acc.length - 1];
    if (last && last[0].from === line.from) last.push(line);
    else acc.push([line]);
    return acc;
  }, []);
  const lastLeoId = [...lines].reverse().find((l) => l.from === "leo")?.id;

  const lastLine = lines[lines.length - 1];

  if (inbox) {
    return (
      <div className="flex h-[30rem] w-full max-w-xs flex-col overflow-hidden rounded-[2rem] border-4 border-muted bg-background shadow-lg">
        <header className="border-b px-4 py-3">
          <p className="text-sm font-medium">Chats</p>
        </header>
        <div className="p-2">
          <button
            type="button"
            onClick={() => setInbox(false)}
            className="flex w-full items-center gap-2.5 rounded-xl px-2 py-2 text-left outline-none hover:bg-muted focus-visible:ring-3 focus-visible:ring-ring/50"
          >
            <Avatar size="sm">
              <AvatarFallback>LB</AvatarFallback>
              <AvatarBadge className="bg-success" />
            </Avatar>
            <span className="min-w-0 flex-1 leading-tight">
              <span className="block truncate text-sm font-medium">
                Leo Brandt
              </span>
              <span className="block truncate text-xs text-muted-foreground">
                {lastLine.from === "you" ? "You: " : ""}
                {lastLine.text}
              </span>
            </span>
          </button>
        </div>
      </div>
    );
  }

  return (
    <div className="flex h-[30rem] w-full max-w-xs flex-col overflow-hidden rounded-[2rem] border-4 border-muted bg-background shadow-lg">
      <header className="flex items-center gap-2 border-b px-2 py-2">
        <Button
          variant="ghost"
          size="icon-sm"
          aria-label="Back to chats"
          onClick={() => {
            setCalling(false);
            setInbox(true);
          }}
        >
          <ChevronLeft aria-hidden="true" />
        </Button>
        <Avatar size="sm">
          <AvatarFallback>LB</AvatarFallback>
          <AvatarBadge className="bg-success" />
        </Avatar>
        <div className="min-w-0 flex-1 leading-tight">
          <p className="truncate text-sm font-medium">Leo Brandt</p>
          <p
            aria-live="polite"
            className={
              calling ? "text-xs text-success" : "text-xs text-muted-foreground"
            }
          >
            {calling ? "Calling…" : "Online"}
          </p>
        </div>
        <Button
          variant="ghost"
          size="icon-sm"
          aria-label={calling ? "End call" : "Call Leo"}
          aria-pressed={calling}
          className={
            calling ? "text-destructive hover:text-destructive" : undefined
          }
          onClick={() => setCalling(!calling)}
        >
          {calling ? (
            <PhoneOff aria-hidden="true" />
          ) : (
            <Phone aria-hidden="true" />
          )}
        </Button>
      </header>

      <div
        ref={logRef}
        role="log"
        aria-label="Conversation with Leo Brandt"
        className="flex min-h-0 flex-1 flex-col gap-4 overflow-y-auto px-3 py-4"
      >
        <p className="text-center text-xs text-muted-foreground">Today 18:47</p>
        {groups.map((group) => {
          const mine = group[0].from === "you";
          return (
            <Message key={group[0].id} align={mine ? "end" : "start"}>
              {mine ? null : (
                <MessageAvatar>
                  <Avatar size="sm">
                    <AvatarFallback>LB</AvatarFallback>
                  </Avatar>
                </MessageAvatar>
              )}
              <MessageContent>
                <MessageGroup className="gap-1">
                  {group.map((line) => {
                    const reactable = line.id === lastLeoId;
                    return (
                      <Bubble
                        key={line.id}
                        variant={mine ? "default" : "muted"}
                        align={mine ? "end" : "start"}
                        className={reactable && liked ? "mb-3" : undefined}
                      >
                        <BubbleContent
                          render={
                            reactable ? (
                              <button
                                type="button"
                                aria-pressed={liked}
                                onDoubleClick={() => setLiked(true)}
                                onClick={(event) => {
                                  if (event.detail === 0) setLiked(!liked);
                                }}
                                aria-label={`${line.text}. Press Enter to ${
                                  liked ? "remove" : "add"
                                } a heart.`}
                              />
                            ) : undefined
                          }
                        >
                          {line.text}
                        </BubbleContent>
                        {reactable && liked ? (
                          <BubbleReactions align="start">
                            <button
                              type="button"
                              onClick={() => setLiked(false)}
                              aria-label="Remove heart reaction"
                              className="flex items-center rounded-full px-1.5 py-0.5 outline-none focus-visible:ring-3 focus-visible:ring-ring/50"
                            >
                              <Heart
                                aria-hidden="true"
                                className="size-3.5 fill-destructive text-destructive"
                              />
                            </button>
                          </BubbleReactions>
                        ) : null}
                      </Bubble>
                    );
                  })}
                </MessageGroup>
                {mine &&
                group[group.length - 1].id === lines[lines.length - 1].id ? (
                  <MessageFooter>
                    {lines.length > seed.length ? "Delivered" : "Read 18:49"}
                  </MessageFooter>
                ) : null}
              </MessageContent>
            </Message>
          );
        })}
        {!liked ? (
          <p className="text-center text-xs text-muted-foreground">
            Double-tap Leo's last message to react
          </p>
        ) : null}
      </div>

      <form onSubmit={send} className="border-t p-2">
        <InputGroup className="h-9 rounded-full">
          <InputGroupInput
            aria-label="Message Leo"
            placeholder="Message"
            value={draft}
            onChange={(event) => setDraft(event.target.value)}
          />
          <InputGroupAddon align="inline-end">
            <InputGroupButton
              type="submit"
              size="icon-xs"
              variant="default"
              className="rounded-full"
              disabled={!draft.trim()}
              aria-label="Send message"
            >
              <SendHorizontal aria-hidden="true" />
            </InputGroupButton>
          </InputGroupAddon>
        </InputGroup>
      </form>
    </div>
  );
}