chat_room/src/components/discover/SwipeCard.tsx

"use client";

import { useRouter } from "next/navigation";
import { motion, useMotionValue, useTransform, PanInfo } from "framer-motion";
import { MapPin, User } from "lucide-react";
import { DiscoverCandidate, photoUrl } from "@/lib/api";
import { formatDistance } from "@/lib/utils";

const SWIPE_THRESHOLD = 120;

export function SwipeCard({
  profile,
  isTop,
  stackIndex,
  onDecide,
}: {
  profile: DiscoverCandidate;
  isTop: boolean;
  stackIndex: number;
  onDecide: (direction: "left" | "right") => void;
}) {
  const router = useRouter();
  const x = useMotionValue(0);
  const rotate = useTransform(x, [-260, 260], [-16, 16]);
  const likeOpacity = useTransform(x, [20, 120], [0, 1]);
  const nopeOpacity = useTransform(x, [-120, -20], [1, 0]);

  function handleDragEnd(_: unknown, info: PanInfo) {
    if (info.offset.x > SWIPE_THRESHOLD) {
      onDecide("right");
    } else if (info.offset.x < -SWIPE_THRESHOLD) {
      onDecide("left");
    }
  }

  const photo = profile.photos?.[0];

  return (
    <motion.div
      className="absolute inset-0"
      style={
        isTop
          ? { x, rotate }
          : {
              scale: 1 - stackIndex * 0.04,
              y: stackIndex * 10,
            }
      }
      drag={isTop ? "x" : false}
      dragElastic={0.9}
      onDragEnd={isTop ? handleDragEnd : undefined}
      initial={{ scale: 1 - stackIndex * 0.04, y: stackIndex * 10, opacity: 0 }}
      animate={{ scale: 1 - stackIndex * 0.04, y: stackIndex * 10, opacity: 1 }}
      exit={{
        x: x.get() > 0 ? 400 : x.get() < 0 ? -400 : 0,
        opacity: 0,
        transition: { duration: 0.3 },
      }}
      transition={{ type: "spring", stiffness: 300, damping: 30 }}
    >
      <div
        onClick={() => isTop && router.push(`/home/${profile.id}`)}
        className="relative w-full h-full rounded-(--radius-xl) overflow-hidden shadow-(--shadow-cute-lg) bg-(--color-bg-tertiary) cursor-pointer select-none"
      >
        {photo ? (
          // eslint-disable-next-line @next/next/no-img-element
          <img
            src={photoUrl(photo)}
            alt={profile.first_name}
            draggable={false}
            className="absolute inset-0 w-full h-full object-cover pointer-events-none"
          />
        ) : (
          <div className="absolute inset-0 flex items-center justify-center bg-(--color-bg-tertiary) text-(--color-content-disabled) pointer-events-none">
            <User size={64} strokeWidth={1.2} />
          </div>
        )}
        <div className="absolute inset-x-0 bottom-0 h-2/3 bg-gradient-to-t from-black/85 via-black/30 to-transparent pointer-events-none" />

        {isTop && (
          <>
            <motion.span
              style={{ opacity: likeOpacity }}
              className="absolute top-8 right-6 rotate-[-12deg] border-4 border-(--color-status-success) text-(--color-status-success) font-[var(--font-display)] font-extrabold text-[26px] px-3 py-1 rounded-(--radius-sm) bg-white/70"
            >
              لایک
            </motion.span>
            <motion.span
              style={{ opacity: nopeOpacity }}
              className="absolute top-8 left-6 rotate-[12deg] border-4 border-(--color-status-error) text-(--color-status-error) font-[var(--font-display)] font-extrabold text-[26px] px-3 py-1 rounded-(--radius-sm) bg-white/70"
            >
              ردّ
            </motion.span>
          </>
        )}

        <div className="absolute inset-x-0 bottom-0 p-5 pointer-events-none">
          <div className="flex items-center gap-2">
            <h2 className="font-[var(--font-display)] font-extrabold text-[24px] text-white">
              {profile.first_name || "بدون نام"}
            </h2>
            <span className="font-[var(--font-display)] font-bold text-[20px] text-white/90">
              {profile.age}
            </span>
          </div>
          {profile.distance_km != null && (
            <div className="flex items-center gap-1.5 mt-1.5">
              <MapPin size={14} className="text-white/80" />
              <span className="text-[13px] text-white/80">
                {formatDistance(profile.distance_km)}
              </span>
            </div>
          )}
        </div>
      </div>
    </motion.div>
  );
}