components/ui/metric-switch.tsx

"use client";

import { cn } from "@/lib/utils";
import { motion } from "framer-motion";
import { useTranslation } from "react-i18next";

interface MetricSwitchProps {
  value: "cost" | "count";
  onChange: (value: "cost" | "count") => void;
  className?: string;
}

export function MetricSwitch({
  value,
  onChange,
  className,
}: MetricSwitchProps) {
  const { t } = useTranslation("common");

  return (
    <div
      className={cn(
        "inline-flex h-9 items-center rounded-lg bg-muted p-1",
        className
      )}
    >
      <div className="relative flex items-center">
        <motion.div
          className="absolute h-7 rounded-md bg-background shadow-sm"
          initial={false}
          animate={{
            x: value === "cost" ? 0 : "100%",
            width: "50%",
          }}
          transition={{ type: "spring", bounce: 0.2, duration: 0.6 }}
        />
        <button
          onClick={() => onChange("cost")}
          className={cn(
            "relative px-3 py-1 text-sm font-medium transition-colors duration-200",
            value === "cost" ? "text-foreground" : "text-muted-foreground"
          )}
        >
          {t("panel.byAmount")}
        </button>
        <button
          onClick={() => onChange("count")}
          className={cn(
            "relative px-3 py-1 text-sm font-medium transition-colors duration-200",
            value === "count" ? "text-foreground" : "text-muted-foreground"
          )}
        >
          {t("panel.byCount")}
        </button>
      </div>
    </div>
  );
}