import React, { useState, useEffect, useRef } from 'react'
import './BoardSelector.css'

function BoardSelector({ 
  boards, 
  selectedBoardId, 
  onBoardChange, 
  onBoardEdit,
  onAddBoard,
  loading 
}) {
  const [isOpen, setIsOpen] = useState(false)
  const dropdownRef = useRef(null)
  
  const selectedBoard = boards.find(b => b.id === selectedBoardId)

  // Закрытие при клике снаружи
  useEffect(() => {
    const handleClickOutside = (e) => {
      if (dropdownRef.current && !dropdownRef.current.contains(e.target)) {
        setIsOpen(false)
      }
    }
    document.addEventListener('mousedown', handleClickOutside)
    return () => document.removeEventListener('mousedown', handleClickOutside)
  }, [])

  const handleSelectBoard = (board) => {
    onBoardChange(board.id)
    setIsOpen(false)
  }

  return (
    <div className="board-selector" ref={dropdownRef}>
      <div className="board-header">
        <button 
          className={`board-pill ${isOpen ? 'open' : ''}`}
          onClick={() => setIsOpen(!isOpen)}
          disabled={loading}
        >
          {!selectedBoard?.is_owner && selectedBoard && (
            <span className="shared-icon">👥</span>
          )}
          <span className="board-label">
            {loading ? 'Загрузка...' : (selectedBoard?.name || 'Выберите доску')}
          </span>
          <svg 
            className={`chevron ${isOpen ? 'rotated' : ''}`} 
            width="14" 
            height="14" 
            viewBox="0 0 12 12"
          >
            <path 
              d="M2.5 4.5L6 8L9.5 4.5" 
              fill="none" 
              stroke="currentColor" 
              strokeWidth="1.5" 
              strokeLinecap="round" 
              strokeLinejoin="round"
            />
          </svg>
        </button>
        
        {selectedBoard && (
          <button 
            className="board-action-btn"
            onClick={onBoardEdit}
            title={selectedBoard.is_owner ? 'Настройки доски' : 'Покинуть доску'}
          >
            {selectedBoard.is_owner ? (
              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                <circle cx="12" cy="12" r="1.5"></circle>
                <circle cx="19" cy="12" r="1.5"></circle>
                <circle cx="5" cy="12" r="1.5"></circle>
              </svg>
            ) : (
              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                <path d="M9 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h4"></path>
                <polyline points="16 17 21 12 16 7"></polyline>
                <line x1="21" y1="12" x2="9" y2="12"></line>
              </svg>
            )}
          </button>
        )}
      </div>
      
      <div className={`board-dropdown ${isOpen ? 'visible' : ''}`}>
        <div className="dropdown-content">
          {boards.length === 0 ? (
            <div className="dropdown-empty">
              Нет досок
            </div>
          ) : (
            <div className="dropdown-list">
              {boards.map(board => (
                <button
                  key={board.id}
                  className={`dropdown-item ${board.id === selectedBoardId ? 'selected' : ''}`}
                  onClick={() => handleSelectBoard(board)}
                >
                  <span className="item-name">{board.name}</span>
                  <div className="item-meta">
                    {!board.is_owner && <span className="item-badge shared">👥</span>}
                    {board.member_count > 0 && (
                      <span className="item-members">{board.member_count}</span>
                    )}
                    {board.id === selectedBoardId && (
                      <svg className="check-icon" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2.5">
                        <polyline points="20 6 9 17 4 12"></polyline>
                      </svg>
                    )}
                  </div>
                </button>
              ))}
            </div>
          )}
          
          <button className="dropdown-item add-board" onClick={onAddBoard}>
            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
              <circle cx="12" cy="12" r="10"></circle>
              <line x1="12" y1="8" x2="12" y2="16"></line>
              <line x1="8" y1="12" x2="16" y2="12"></line>
            </svg>
            <span>Создать доску</span>
          </button>
        </div>
      </div>
    </div>
  )
}

export default BoardSelector
