"use client";

import { useState } from "react";
import { useRouter } from "next/navigation";
import Link from "next/link";
import { Lock } from "lucide-react";
import { apiUnlockPost } from "@/lib/api";
import { toast } from "@/lib/toast";

export default function ContentLockGate({
  postId,
  hint,
  access,
  points,
  loggedIn,
}: {
  postId: number;
  hint?: string;
  access?: string;
  points?: number;
  loggedIn: boolean;
}) {
  const router = useRouter();
  const [busy, setBusy] = useState(false);

  const unlock = async () => {
    setBusy(true);
    try {
      const res = await apiUnlockPost(String(postId));
      if (res.post) {
        toast("已解锁全文", "ok");
        router.refresh();
      } else {
        toast(res.error || "解锁失败", "error");
      }
    } catch {
      toast("解锁失败", "error");
    } finally {
      setBusy(false);
    }
  };

  return (
    <div
      className="rounded-[14px] px-6 py-10 text-center my-4"
      style={{
        background: "var(--accent-soft)",
        border: "1px solid color-mix(in srgb, var(--accent) 20%, transparent)",
      }}
    >
      <Lock size={28} className="mx-auto mb-3" style={{ color: "var(--accent)" }} />
      <p className="font-bold text-[16px] mb-1" style={{ color: "var(--ink)" }}>
        {hint || "正文暂不可见"}
      </p>
      <p className="meta text-[13px] mb-5">
        {access === "points"
          ? `支付 ${points || 0} 积分后可阅读全文`
          : access === "reply"
            ? "发表一条回复后即可阅读全文"
            : access === "login"
              ? "登录后即可阅读全文"
              : null}
      </p>
      {access === "login" && !loggedIn && (
        <Link
          href={`/login?redirect=${encodeURIComponent(`/post/${postId}`)}`}
          className="btn btn-primary"
        >
          去登录
        </Link>
      )}
      {access === "points" && loggedIn && (
        <button type="button" className="btn btn-primary" disabled={busy} onClick={() => void unlock()}>
          {busy ? "解锁中…" : `支付 ${points || 0} 积分解锁`}
        </button>
      )}
      {access === "points" && !loggedIn && (
        <Link
          href={`/login?redirect=${encodeURIComponent(`/post/${postId}`)}`}
          className="btn btn-primary"
        >
          登录后解锁
        </Link>
      )}
      {access === "reply" && (
        <a href="#comments" className="btn btn-primary">
          去回复
        </a>
      )}
    </div>
  );
}