Animated Testimonials

1"use client";
2 
3import { AnimatePresence, motion } from "framer-motion";
4import * as React from "react";
5 
6export type Testimonial = {
7  /** The testimonial quote. */
8  quote: string;
9  /** Person's name. */
10  name: string;
11  /** Person's role / company. */
12  role: string;
13  /** Avatar / portrait image URL. */
14  src: string;
15};
16 
17export type AnimatedTestimonialsProps = React.HTMLAttributes<HTMLDivElement> & {
18  /** Testimonials to cycle through. */
19  testimonials: Testimonial[];
20  /** Advance automatically. */
21  autoplay?: boolean;
22  /** Autoplay interval in milliseconds. */
23  interval?: number;
24};
25 
26const ARROW_BASE =
27  "flex size-9 items-center justify-center rounded-full bg-muted text-foreground [transition:background_200ms_ease] hover:bg-accent";
28 
29const AnimatedTestimonials = React.forwardRef<
30  HTMLDivElement,
31  AnimatedTestimonialsProps
32>(
33  (
34    { testimonials, autoplay = true, interval = 5000, className, ...props },
35    ref,
36  ) => {
37    const [active, setActive] = React.useState(0);
38    const count = testimonials.length;
39 
40    const next = React.useCallback(
41      () => setActive((prev) => (prev + 1) % count),
42      [count],
43    );
44    const prev = () => setActive((p) => (p - 1 + count) % count);
45 
46    // Stable per-item rotation so inactive cards fan out consistently.
47    const rotations = React.useMemo(
48      () => testimonials.map(() => Math.floor(Math.random() * 16) - 8),
49      [testimonials],
50    );
51 
52    // Keyed on `active` so the countdown restarts whenever the slide changes —
53    // including manual prev / next — instead of firing on a fixed cadence.
54    // biome-ignore lint/correctness/useExhaustiveDependencies: `active` is the intentional reset trigger
55    React.useEffect(() => {
56      if (!autoplay || count <= 1) return;
57      const id = setTimeout(next, interval);
58      return () => clearTimeout(id);
59    }, [autoplay, interval, next, count, active]);
60 
61    if (count === 0) return null;
62    const current = testimonials[active];
63 
64    return (
65      <div
66        ref={ref}
67        data-slot="animated-testimonials"
68        className={`grid w-full max-w-3xl gap-8 md:grid-cols-2 ${className ?? ""}`}
69        {...props}
70      >
71        <div className="relative h-72 [perspective:1000px]">
72          <AnimatePresence>
73            {testimonials.map((t, i) => {
74              const isActive = i === active;
75              return (
76                <motion.img
77// … truncated