judge4c/src/components/typing-effect.tsx

"use client";

import { motion } from "framer-motion";
import { useTranslations } from "next-intl";
import { useEffect, useState, useMemo } from "react";

export function TypingEffect() {
  const t = useTranslations("HomePage.MainView.features");
  const texts = useMemo(
    () => [t("feature1"), t("feature2"), t("feature3")],
    [t]
  );
  const [index, setIndex] = useState(0);
  const [displayText, setDisplayText] = useState("");
  const [isDeleting, setIsDeleting] = useState(false);

  useEffect(() => {
    const handleTyping = () => {
      const currentText = texts[index];

      if (isDeleting) {
        setDisplayText(currentText.substring(0, displayText.length - 1));
      } else {
        setDisplayText(currentText.substring(0, displayText.length + 1));
      }

      if (!isDeleting && displayText === currentText) {
        setTimeout(() => setIsDeleting(true), 1000);
      } else if (isDeleting && displayText === "") {
        setIsDeleting(false);
        setIndex((prevIndex) => (prevIndex + 1) % texts.length);
      }
    };

    const typingSpeed = isDeleting ? 50 : 100;
    const timer = setTimeout(handleTyping, typingSpeed);

    return () => clearTimeout(timer);
  }, [displayText, isDeleting, index, texts]);

  return (
    <motion.div
      initial={{ opacity: 0 }}
      animate={{ opacity: 1 }}
      exit={{ opacity: 0 }}
      className="inline-block"
    >
      {displayText}
      <span className="blinking-cursor">|</span>
    </motion.div>
  );
}