import React, { useState, useMemo } from 'react'
import RoomCard from './RoomCard'
import AddRoomBar from './AddRoomBar'
import type { RoomData } from '../types'

interface DashboardProps {
  rooms: RoomData[]
  viewMode: 'card' | 'list'
  cardCols: number
  listPerPage: number
  onAddRoom: (url: string) => void
  onToggleRoom: (id: string, action?: string) => void
  onRemoveRoom: (id: string) => void
  onSetActive: (id: string) => void
}

export default function Dashboard({ rooms, viewMode, cardCols, listPerPage, onAddRoom, onToggleRoom, onRemoveRoom, onSetActive }: DashboardProps) {
  const [page, setPage] = useState(0)

  const paginatedRooms = useMemo(() => {
    if (viewMode === 'list') {
      const start = page * listPerPage
      return rooms.slice(start, start + listPerPage)
    }
    return rooms
  }, [rooms, page, listPerPage, viewMode])

  const totalPages = viewMode === 'list' ? Math.ceil(rooms.length / listPerPage) : 0

  return (
    <div className="dash-zone">
      <AddRoomBar onAdd={onAddRoom} />
      {viewMode === 'card' ? (
        <div className="room-grid" style={{ gridTemplateColumns: `repeat(${cardCols}, 1fr)` }}>
          {paginatedRooms.map(room => (
            <RoomCard
              key={room.id}
              room={room}
              onToggle={(a) => onToggleRoom(room.id, a)}
              onRemove={() => onRemoveRoom(room.id)}
              onDetail={() => onSetActive(room.id)}
            />
          ))}
          {paginatedRooms.length === 0 && (
            <div className="empty-state">
              <p>暂无房间</p>
              <p>在上方输入框添加直播间URL开始监控</p>
            </div>
          )}
        </div>
      ) : (
        <div className="room-list">
          <table className="list-table">
            <thead>
              <tr>
                <th>状态</th>
                <th>房间</th>
                <th>主播</th>
                <th>类型</th>
                <th>观众</th>
                <th>消息</th>
                <th>精准</th>
                <th>操作</th>
              </tr>
            </thead>
            <tbody>
              {paginatedRooms.map(room => (
                <tr key={room.id} className={`list-row ${room.status}`} onClick={() => onSetActive(room.id)}>
                  <td><span className={`status-dot ${room.status}`} /></td>
                  <td className="list-title">{room.title}</td>
                  <td>{room.anchor_id}</td>
                  <td><span className={`kind-badge ${room.kind}`}>{room.kind === 'public' ? '公开' : '匿名'}</span></td>
                  <td>{room.viewers}</td>
                  <td>{room.total_msg}</td>
                  <td>{room.lead_count}</td>
                  <td className="list-actions">
                    <button className="list-btn start" onClick={e => { e.stopPropagation(); onToggleRoom(room.id, 'start') }}>▶</button>
                    <button className="list-btn stop" onClick={e => { e.stopPropagation(); onToggleRoom(room.id, 'stop') }}>⏹</button>
                    <button className="list-btn del" onClick={e => { e.stopPropagation(); onRemoveRoom(room.id) }}>✕</button>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
          {paginatedRooms.length === 0 && (
            <div className="empty-state">
              <p>暂无房间</p>
              <p>在上方输入框添加直播间URL开始监控</p>
            </div>
          )}
        </div>
      )}
      {totalPages > 1 && (
        <div className="pagination">
          <button className="page-btn" disabled={page === 0} onClick={() => setPage(p => p - 1)}>‹</button>
          <span className="page-info">{page + 1} / {totalPages}</span>
          <button className="page-btn" disabled={page >= totalPages - 1} onClick={() => setPage(p => p + 1)}>›</button>
        </div>
      )}
    </div>
  )
}