Avatar Stack with Realtime Presence

1import { cva, type VariantProps } from 'class-variance-authority'
2import * as React from 'react'
3 
4import { cn } from '@/lib/utils'
5import { Avatar, AvatarFallback, AvatarImage } from '@/registry/default/components/ui/avatar'
6import { Tooltip, TooltipContent, TooltipTrigger } from '@/registry/default/components/ui/tooltip'
7 
8const avatarStackVariants = cva('flex -space-x-4 -space-y-4', {
9  variants: {
10    orientation: {
11      vertical: 'flex-row',
12      horizontal: 'flex-col',
13    },
14  },
15  defaultVariants: {
16    orientation: 'vertical',
17  },
18})
19 
20export interface AvatarStackProps
21  extends React.HTMLAttributes<HTMLDivElement>, VariantProps<typeof avatarStackVariants> {
22  avatars: { name: string; image: string }[]
23  maxAvatarsAmount?: number
24}
25 
26const AvatarStack = ({
27  className,
28  orientation,
29  avatars,
30  maxAvatarsAmount = 3,
31  ...props
32}: AvatarStackProps) => {
33  const shownAvatars = avatars.slice(0, maxAvatarsAmount)
34  const hiddenAvatars = avatars.slice(maxAvatarsAmount)
35 
36  return (
37    <div
38      className={cn(
39        avatarStackVariants({ orientation }),
40        className,
41        orientation === 'horizontal' ? 'space-x-0' : 'space-y-0'
42      )}
43      {...props}
44    >
45      {shownAvatars.map(({ name, image }, index) => (
46        <Tooltip key={`${name}-${image}-${index}`}>
47          <TooltipTrigger asChild>
48            <Avatar className="hover:z-10">
49              <AvatarImage src={image} />
50              <AvatarFallback>
51                {name
52                  ?.split(' ')
53                  ?.map((word) => word[0])
54                  ?.join('')
55                  ?.toUpperCase()}
56              </AvatarFallback>
57            </Avatar>
58          </TooltipTrigger>
59          <TooltipContent>
60            <p>{name}</p>
61          </TooltipContent>
62        </Tooltip>
63      ))}
64 
65      {hiddenAvatars.length ? (
66        <Tooltip key="hidden-avatars">
67          <TooltipTrigger asChild>
68            <Avatar>
69              <AvatarFallback>+{avatars.length - shownAvatars.length}</AvatarFallback>
70            </Avatar>
71          </TooltipTrigger>
72          <TooltipContent>
73            {hiddenAvatars.map(({ name }, index) => (
74              <p key={`${name}-${index}`}>{name}</p>
75            ))}
76          </TooltipContent>
77        </Tooltip>
78      ) : null}
79    </div>
80  )
81}
82 
83export { AvatarStack, avatarStackVariants }