import React from "react";
import MovieIcon from "@mui/icons-material/Movie";
import EmailIcon from "@mui/icons-material/Email";
import MusicNoteIcon from "@mui/icons-material/MusicNote";
import EmojiPeopleIcon from "@mui/icons-material/EmojiPeople";
import SportsEsportsIcon from "@mui/icons-material/SportsEsports";
import SportsMartialArtsIcon from "@mui/icons-material/SportsMartialArts";
import PersonIcon from "@mui/icons-material/Person";
import AccountCircleIcon from "@mui/icons-material/AccountCircle";
import "./App.css";
import { useNavigate } from "react-router-dom";

const navItems = [
  { label: "电影", icon: <MovieIcon />, path: "/movie" },
  { label: "剧集", icon: <EmailIcon />, path: "/tv" },
  { label: "音乐", icon: <MusicNoteIcon />, path: "/music" },
  { label: "动漫", icon: <EmojiPeopleIcon />, path: "/anime" },
  { label: "游戏", icon: <SportsEsportsIcon />, path: "/game" },
  { label: "体育", icon: <SportsMartialArtsIcon />, path: "/sport" },
  { label: "资料", icon: <PersonIcon />, path: "/info" },
  { label: "发布", icon: <AccountCircleIcon />, path: "/publish" }, // Added Publish option
];

const areaTabs = [
  { label: "古典音乐", icon: <MovieIcon fontSize="small" /> },
  { label: "流行音乐", icon: <EmailIcon fontSize="small" /> },
  { label: "摇滚", icon: <PersonIcon fontSize="small" /> },
  { label: "电子音乐", icon: <EmojiPeopleIcon fontSize="small" /> },
  { label: "说唱", icon: <PersonIcon fontSize="small" /> },
];

const exampleTorrents = [
  { type: "Pop", title: "实例1", id: 1 },
  { type: "Rock", title: "实例2", id: 2 },
  { type: "Jazz", title: "实例3", id: 3 },
];

export default function MusicPage() {
  const navigate = useNavigate();
  const [activeTab, setActiveTab] = React.useState(0);
  const [musicList, setMusicList] = React.useState([]);

  // 每个tab对应的音乐类型
  const musicTypesList = [
    ["华语音乐（大陆）", "欧美音乐", "日韩音乐", "港台音乐", "其他"], // 大陆
    ["港台流行", "港台摇滚", "港台其他"], // 港台
    ["欧美流行", "欧美摇滚", "欧美其他"], // 欧美
    ["日韩流行", "日韩其他"], // 日韩
    ["其他类型1", "其他类型2"] // 其他
  ];
  const musicTypes = musicTypesList[activeTab] || [];

  React.useEffect(() => {
    // 假设后端接口为 /api/musics?area=大陆
    const area = areaTabs[activeTab].label;
    fetch(`http://192.168.5.9:8080/api/get-seed-list-by-tag?tag=${encodeURIComponent(area)}`)
      .then(res => res.json())
      .then(data => setMusicList(data))
      .catch(() => setMusicList([]));
  }, [activeTab]);

  return (
    <div className="container music-bg">
      {/* 顶部空白与音乐界面一致，用户栏绝对定位在页面右上角 */}
      <div style={{ height: 80 }} />
      <div className="user-bar" style={{ position: 'fixed', top: 18, right: 42, zIndex: 100, display: 'flex', alignItems: 'center', background: '#e0f3ff', borderRadius: 12, padding: '6px 18px', boxShadow: '0 2px 8px #b2d8ea', minWidth: 320, minHeight: 48, width: 420 }}>
        <div style={{ cursor: 'pointer', marginRight: 16 }} onClick={() => navigate('/user')}>
          <AccountCircleIcon style={{ fontSize: 38, color: '#1a237e', background: '#e0f3ff', borderRadius: '50%' }} />
        </div>
        <div style={{ color: '#222', fontWeight: 500, marginRight: 24 }}>用户栏</div>
        <div style={{ display: 'flex', gap: 28, flex: 1, justifyContent: 'flex-end', alignItems: 'center' }}>
          <span style={{ color: '#1976d2', fontWeight: 500 }}>魔力值: <b>12345</b></span>
          <span style={{ color: '#1976d2', fontWeight: 500 }}>分享率: <b>2.56</b></span>
          <span style={{ color: '#1976d2', fontWeight: 500 }}>上传量: <b>100GB</b></span>
          <span style={{ color: '#1976d2', fontWeight: 500 }}>下载量: <b>50GB</b></span>
        </div>
      </div>
      {/* 下方内容整体下移，留出与其他页面一致的间距 */}
      <div style={{ height: 32 }} />
      <nav className="nav-bar card">
        {navItems.map((item) => (
          <div
            key={item.label}
            className={item.label === "音乐" ? "nav-item active" : "nav-item"}
            onClick={() => navigate(item.path)}
          >
            {item.icon}
            <span>{item.label}</span>
          </div>
        ))}
      </nav>
      <div className="search-section card">
        <input className="search-input" placeholder="输入搜索关键词" />
        <button className="search-btn">
          <span role="img" aria-label="search">🔍</span>
        </button>
      </div>
      <div className="area-tabs card" style={{ display: 'flex', justifyContent: 'center', gap: 24, margin: '18px 0' }}>
        {areaTabs.map((tab, idx) => (
          <div
            key={tab.label}
            className={activeTab === idx ? "area-tab active" : "area-tab"}
            onClick={() => setActiveTab(idx)}
          >
            {tab.icon} <span>{tab.label}</span>
          </div>
        ))}
      </div>
      <div className="table-section">
        <table className="music-table">
          <thead>
            <tr>
              <th>音乐类型</th>
              <th>标题</th>
              <th>发布者</th>
            </tr>
          </thead>
          <tbody>
            {musicList.length > 0 ? (
              musicList.map((item, index) => (
                <tr key={item.id || index}>
                  <td>
                    <a href={`/torrent/${item.seedid}`} style={{ color: '#1a237e', textDecoration: 'none' }}>
                      {item.seedtag}
                    </a>
                  </td>
                  <td>
                    <a href={`/torrent/${item.seedid}`} style={{ color: '#1a237e', textDecoration: 'none' }}>
                      {item.title}
                    </a>
                  </td>
                  <td>{item.user.username}</td>
                </tr>
              ))
            ) : (
              musicTypes.map((type, index) => (
                <tr key={type}>
                  <td>
                    <a href={`/torrent/${type}`} style={{ color: '#1a237e', textDecoration: 'none' }}>
                      {type}
                    </a>
                  </td>
                  <td>
                    <a href={`/torrent/${type}`} style={{ color: '#1a237e', textDecoration: 'none' }}>
                      种子{index + 1}
                    </a>
                  </td>
                  <td>发布者{index + 1}</td>
                </tr>
              ))
            )}
          </tbody>
        </table>
      </div>
      <div style={{ height: 32 }} />
      <Pagination />
    </div>
  );
}

function Pagination() {
  const [page, setPage] = React.useState(3);
  const total = 5;
  return (
    <div className="pagination">
      <button onClick={() => setPage(p => Math.max(1, p - 1))} disabled={page === 1}>上一页</button>
      <span className="page-num">{page}/{total}</span>
      <button onClick={() => setPage(p => Math.min(total, p + 1))} disabled={page === total}>下一页</button>
      <span className="page-info">第 <b>{page}</b> 页</span>
    </div>
  );
}