"use client";

import { useEffect, useState } from "react";
import Link from "next/link";
import Image from "next/image";
import HeroSection from "./components/HeroSection";
import SessionCard from "./components/SessionCard";
import Footer from "./components/Footer";
import Header from "./components/Header";
import { getSessionsWithDates, HOSTS } from "@/config/home.config";

export default function Home() {
  const [volunteers, setVolunteers] = useState<{ nickname: string; avatar?: string; xiaohongshu_url?: string }[]>([]);

  useEffect(() => {
    fetch("/api/join/volunteers")
      .then((r) => r.json())
      .then((d) => d?.volunteers && setVolunteers(d.volunteers))
      .catch(() => {});
  }, []);
  return (
    <div className="min-h-screen bg-[#faf8f5] dark:bg-stone-950 pb-20 sm:pb-12">
      <Header />
      <HeroSection />

      <main className="max-w-[900px] mx-auto px-4 sm:px-6 md:px-8 py-8 sm:py-12 md:py-14 space-y-10 sm:space-y-14">
        {/* 是什么 / 不是什么 - 小红书风格 */}
        <section>
          <div className="rounded-xl sm:rounded-2xl bg-white dark:bg-stone-900/80 border border-stone-200/80 dark:border-stone-700/80 p-4 sm:p-6 overflow-hidden">
            <div className="grid sm:grid-cols-2 gap-6 sm:gap-8">
              <div>
                <h3 className="text-base sm:text-lg font-semibold text-stone-800 dark:text-stone-100 mb-3 flex items-center gap-2">
                  <span className="text-amber-600 dark:text-amber-400">✓</span> 是什么 · 适合谁
                </h3>
                <ul className="space-y-1.5 text-sm text-stone-600 dark:text-stone-400">
                  <li>· 周末同城轻社交，loft民宿见～</li>
                  <li>· 4–8 人小圈子，聊得来就多聊</li>
                  <li>· 第一次来也完全 OK</li>
                </ul>
              </div>
              <div>
                <h3 className="text-base sm:text-lg font-semibold text-stone-800 dark:text-stone-100 mb-3 flex items-center gap-2">
                  <span className="text-stone-400 dark:text-stone-500">✗</span> 不是什么 · 不适合谁
                </h3>
                <ul className="space-y-1.5 text-sm text-stone-600 dark:text-stone-400">
                  <li>· 不是相亲局、卖课、强制破冰</li>
                  <li>· 只想线上聊、想加所有人微信的 pass</li>
                  <li>· 想销售引流、不尊重边界的 pass</li>
                </ul>
              </div>
            </div>
          </div>
        </section>

        {/* 报名流程 */}
        <section>
          <h2 className="text-lg sm:text-xl font-semibold text-stone-800 dark:text-stone-100 mb-4 sm:mb-5 flex items-center gap-2">
            <span>📋</span> 怎么参加
          </h2>
          <div className="rounded-xl sm:rounded-2xl bg-white dark:bg-stone-900/80 border border-stone-200/80 dark:border-stone-700/80 p-4 sm:p-6 md:p-8">
            <div className="grid sm:grid-cols-3 gap-6 sm:gap-8">
              <div className="flex flex-col items-center text-center">
                <div className="w-10 h-10 rounded-full bg-amber-100 dark:bg-amber-900/30 text-amber-700 dark:text-amber-300 font-bold text-lg flex items-center justify-center mb-3">1</div>
                <h4 className="font-semibold text-stone-800 dark:text-stone-100 text-sm sm:text-base">填表</h4>
              </div>
              <div className="flex flex-col items-center text-center">
                <div className="w-10 h-10 rounded-full bg-amber-100 dark:bg-amber-900/30 text-amber-700 dark:text-amber-300 font-bold text-lg flex items-center justify-center mb-3">2</div>
                <h4 className="font-semibold text-stone-800 dark:text-stone-100 text-sm sm:text-base">审核</h4>
              </div>
              <div className="flex flex-col items-center text-center">
                <div className="w-10 h-10 rounded-full bg-amber-100 dark:bg-amber-900/30 text-amber-700 dark:text-amber-300 font-bold text-lg flex items-center justify-center mb-3">3</div>
                <h4 className="font-semibold text-stone-800 dark:text-stone-100 text-sm sm:text-base">通过后联系你确认</h4>
              </div>
            </div>
          </div>
        </section>

        {/* 信任标签 */}
        <div className="flex flex-wrap justify-center gap-x-6 gap-y-1.5 sm:gap-x-8 text-xs sm:text-sm text-stone-600 dark:text-stone-400">
          <span>📍 公开场地</span>
          <span>👥 4–8 人</span>
          <span>✍️ 填表申请</span>
          <span>☕ 茶歇费</span>
        </div>

        {/* 本周场次 */}
        <section>
          <h2 className="text-lg sm:text-xl font-semibold text-stone-800 dark:text-stone-100 mb-4 sm:mb-5 flex items-center gap-2">
            <span>📅</span> 本周活动
          </h2>
          <div className="grid gap-3 sm:gap-4 sm:grid-cols-2">
            {getSessionsWithDates().map((s, i) => (
              <SessionCard key={s.id} session={s} index={i} />
            ))}
          </div>
        </section>

        {/* 活动亮点 */}
        <section>
          <h2 className="text-lg sm:text-xl font-semibold text-stone-800 dark:text-stone-100 mb-4 sm:mb-5 flex items-center gap-2">
            <span>💡</span> 活动亮点
          </h2>
          <div className="rounded-xl sm:rounded-2xl bg-white dark:bg-stone-900/80 border border-stone-200/80 dark:border-stone-700/80 p-4 sm:p-6 md:p-8">
            <div className="grid sm:grid-cols-2 gap-4 sm:gap-6">
              {[
                { icon: "😌", title: "氛围轻松", desc: "loft民宿里的小聚，不用尬聊，聊得来就多聊～" },
                { icon: "🛡️", title: "安全靠谱", desc: "公开场地，地址提前说。尊重边界，不追问隐私。" },
                { icon: "👍", title: "第一次也 OK", desc: "很多人都是第一次来，小圈子人数可控～" },
                { icon: "✍️", title: "填表就行", desc: "不用注册、不用先付，填个表就好。" },
              ].map((item) => (
                <div key={item.title} className="flex gap-2.5 sm:gap-3">
                  <span className="text-xl sm:text-2xl shrink-0">{item.icon}</span>
                  <div>
                    <p className="font-medium text-stone-800 dark:text-stone-100 text-sm sm:text-base">{item.title}</p>
                    <p className="text-xs sm:text-sm text-stone-500 dark:text-stone-400 mt-0.5 leading-relaxed">{item.desc}</p>
                  </div>
                </div>
              ))}
            </div>
          </div>
        </section>

        {/* 发起人 + 志愿者 */}
        <section>
          <h2 className="text-lg sm:text-xl font-semibold text-stone-800 dark:text-stone-100 mb-4 sm:mb-5 flex items-center gap-2">
            <span>👤</span> 发起人
          </h2>
          <div className="grid sm:grid-cols-2 gap-3 sm:gap-4 mb-4">
            {HOSTS.map((host) => (
              <Link
                key={host.id}
                href={"link" in host ? host.link : `/host/${host.id}`}
                target={"link" in host && host.link.startsWith("http") ? "_blank" : undefined}
                rel={"link" in host && host.link.startsWith("http") ? "noopener noreferrer" : undefined}
                className="flex gap-3 sm:gap-4 p-4 sm:p-5 rounded-xl sm:rounded-2xl bg-white dark:bg-stone-900/80 border border-stone-200/80 dark:border-stone-700/80 hover:border-amber-200 dark:hover:border-amber-900/50 hover:shadow-lg transition-all"
              >
                <div className="relative w-14 h-14 sm:w-16 sm:h-16 shrink-0 rounded-full overflow-hidden border-2 border-amber-100 dark:border-amber-900/30">
                  <Image src={host.avatar} alt={host.name} fill sizes="64px" className="object-cover" unoptimized />
                </div>
                <div className="min-w-0 flex-1 text-left">
                  <h3 className="font-semibold text-stone-800 dark:text-stone-100 text-sm sm:text-base">
                    {host.name}
                  </h3>
                  <p className="mt-0.5 text-xs sm:text-sm text-stone-500 dark:text-stone-400 line-clamp-2">
                    {host.bio}
                  </p>
                  <span className="inline-flex items-center gap-1 mt-2 text-amber-600 dark:text-amber-400 text-xs font-medium">
                    查看详情 →
                  </span>
                </div>
              </Link>
            ))}
          </div>
          {volunteers.length > 0 && (
            <div className="rounded-xl sm:rounded-2xl bg-white dark:bg-stone-900/80 border border-stone-200/80 dark:border-stone-700/80 p-4 sm:p-5">
              <h4 className="text-sm font-medium text-stone-700 dark:text-stone-300 mb-3">🙌 志愿者</h4>
              <div className="flex flex-wrap items-center gap-3">
                {volunteers.map((v, i) => {
                  const content = (
                    <>
                      <div className="relative w-10 h-10 rounded-full overflow-hidden border-2 border-amber-100 dark:border-amber-900/30 shrink-0">
                        {v.avatar ? (
                          <Image src={v.avatar} alt={v.nickname} fill sizes="40px" className="object-cover" unoptimized />
                        ) : (
                          <div className="w-full h-full flex items-center justify-center bg-amber-100 dark:bg-amber-900/30 text-amber-700 dark:text-amber-300 text-sm font-medium">
                            {v.nickname.slice(0, 1) || "?"}
                          </div>
                        )}
                      </div>
                      <span className="text-xs text-stone-600 dark:text-stone-400">{v.nickname}</span>
                    </>
                  );
                  return v.xiaohongshu_url ? (
                    <a
                      key={i}
                      href={v.xiaohongshu_url}
                      target="_blank"
                      rel="noopener noreferrer"
                      className="flex items-center gap-2 hover:opacity-80"
                      title={v.nickname}
                    >
                      {content}
                    </a>
                  ) : (
                    <span key={i} className="flex items-center gap-2" title={v.nickname}>
                      {content}
                    </span>
                  );
                })}
              </div>
            </div>
          )}
        </section>

        {/* FAQ */}
        <section id="faq">
          <h2 className="text-lg sm:text-xl font-semibold text-stone-800 dark:text-stone-100 mb-4 sm:mb-5 flex items-center gap-2">
            <span>❓</span> 常见问题
          </h2>
          <div className="space-y-2 sm:space-y-3">
            {[
              { q: "提交后多久会收到确认？", a: "活动前 1–2 天会联系，微信/短信确认。不匹配不会反复打扰～", icon: "⏱️" },
              { q: "第一次参加可以吗？", a: "可以呀！很多人都是第一次来。4–8 人小圈子、公开场地，聊得来就多聊～", icon: "✨" },
              { q: "临时有事怎么办？", a: "随时可以退出，提前说一声就行～", icon: "🔄" },
            ].map((faq) => (
              <details
                key={faq.q}
                className="group rounded-lg sm:rounded-xl bg-white dark:bg-stone-900/80 border border-stone-200/80 dark:border-stone-700/80 overflow-hidden"
              >
                <summary className="flex items-center gap-2.5 sm:gap-3 p-3 sm:p-4 cursor-pointer list-none [&::-webkit-details-marker]:hidden select-none">
                  <span className="text-base sm:text-lg shrink-0">{faq.icon}</span>
                  <p className="font-medium text-stone-800 dark:text-stone-100 text-xs sm:text-sm flex-1">{faq.q}</p>
                  <span className="shrink-0 text-stone-400 text-xs transition-transform duration-200 group-open:rotate-180">▼</span>
                </summary>
                <div className="px-3 pb-3 sm:px-4 sm:pb-4 pt-0 flex gap-2.5 sm:gap-3">
                  <span className="w-[1.25rem] sm:w-[1.5rem] shrink-0" aria-hidden />
                  <p className="text-xs sm:text-sm text-stone-500 dark:text-stone-400 leading-relaxed">{faq.a}</p>
                </div>
              </details>
            ))}
          </div>
        </section>

        {/* CTA */}
        <section className="pt-2 sm:pt-4">
          <Link
            href="/join"
            className="block w-full bg-amber-600 hover:bg-amber-700 text-white text-center py-3.5 sm:py-4 rounded-xl font-semibold text-sm sm:text-base shadow-lg shadow-amber-900/20 transition-all"
          >
            立即报名
          </Link>
          <p className="mt-3 text-center text-xs sm:text-sm text-stone-500 dark:text-stone-400">
            先填表，我们会根据场次联系你～
          </p>
        </section>
      </main>

      {/* 移动端悬浮 CTA */}
      <div className="fixed bottom-0 left-0 right-0 p-3 sm:p-4 bg-white/95 dark:bg-stone-900/95 backdrop-blur border-t border-stone-200 dark:border-stone-800 sm:hidden z-50 safe-area-pb">
        <Link
          href="/join"
          className="block w-full bg-amber-600 hover:bg-amber-700 text-white text-center py-3 rounded-xl font-medium text-sm"
        >
          去报名
        </Link>
      </div>

      <Footer />
    </div>
  );
}