Alert

1import { cva, type VariantProps } from "class-variance-authority";
2import type * as React from "react";
3 
4import { cn } from "@/lib/utils";
5 
6const alertVariants = cva(
7  "relative grid w-full grid-cols-[0_1fr] items-start gap-y-0.5 rounded-lg border px-4 py-3 text-sm has-[>svg]:grid-cols-[calc(var(--spacing)*4)_1fr] has-[>svg]:gap-x-3 [&>svg]:size-4 [&>svg]:translate-y-0.5 [&>svg]:text-current",
8  {
9    variants: {
10      variant: {
11        default: "bg-card text-card-foreground",
12        destructive:
13          "bg-card text-destructive *:data-[slot=alert-description]:text-destructive/90 [&>svg]:text-current",
14      },
15    },
16    defaultVariants: {
17      variant: "default",
18    },
19  }
20);
21 
22type LivePoliteness = "polite" | "assertive" | false;
23 
24function Alert({
25  className,
26  variant,
27  live = "polite",
28  ...props
29}: React.ComponentProps<"div"> &
30  VariantProps<typeof alertVariants> & { live?: LivePoliteness }) {
31  const liveAttributes =
32    live === "assertive"
33      ? ({
34          role: "alert",
35          "aria-live": "assertive",
36          "aria-atomic": true,
37        } as const)
38      : live === "polite"
39        ? ({
40            role: "status",
41            "aria-live": "polite",
42            "aria-atomic": true,
43          } as const)
44        : ({} as const);
45  return (
46    <div
47      data-slot="alert"
48      {...liveAttributes}
49      className={cn(alertVariants({ variant }), className)}
50      {...props}
51    />
52  );
53}
54 
55function AlertTitle({ className, ...props }: React.ComponentProps<"div">) {
56  return (
57    <div
58      className={cn(
59        "col-start-2 line-clamp-1 min-h-4 font-medium tracking-tight",
60        className
61      )}
62      data-slot="alert-title"
63      {...props}
64    />
65  );
66}
67 
68function AlertDescription({
69  className,
70  ...props
71}: React.ComponentProps<"div">) {
72  return (
73    <div
74      className={cn(
75        "col-start-2 grid justify-items-start gap-1 text-muted-foreground text-sm [&_p]:leading-relaxed",
76        className
77      )}
78      data-slot="alert-description"
79      {...props}
80    />
81  );
82}
83 
84export { Alert, AlertTitle, AlertDescription };