import { useState, useRef, useEffect } from 'react'

/**
 * Tooltip компонент в стиле Tabler UI
 * Использует position: absolute относительно trigger элемента
 */
function Tooltip({ 
  children, 
  content, 
  position = 'top', // top, bottom, left, right
  shortcut, // keyboard shortcut to display
  delay = 200,
  className = ''
}) {
  const [isVisible, setIsVisible] = useState(false)
  const timeoutRef = useRef(null)
  const triggerRef = useRef(null)

  const showTooltip = () => {
    if (timeoutRef.current) clearTimeout(timeoutRef.current)
    
    timeoutRef.current = setTimeout(() => {
      setIsVisible(true)
    }, delay)
  }

  const hideTooltip = () => {
    if (timeoutRef.current) {
      clearTimeout(timeoutRef.current)
    }
    setIsVisible(false)
  }

  useEffect(() => {
    return () => {
      if (timeoutRef.current) {
        clearTimeout(timeoutRef.current)
      }
    }
  }, [])

  return (
    <span
      ref={triggerRef}
      onMouseEnter={showTooltip}
      onMouseLeave={hideTooltip}
      onFocus={showTooltip}
      onBlur={hideTooltip}
      className={`tooltip-trigger ${className}`}
      style={{ position: 'relative', display: 'inline-block' }}
    >
      {children}
      
      {isVisible && (
        <div
          className={`tooltip bs-tooltip-${position} show`}
          role="tooltip"
          style={{
            position: 'absolute',
            zIndex: 1070,
            display: 'block',
            margin: 0,
            pointerEvents: 'none',
            ...(position === 'top' && {
              bottom: '100%',
              left: '50%',
              transform: 'translateX(-50%)',
              marginBottom: '8px'
            }),
            ...(position === 'bottom' && {
              top: '100%',
              left: '50%',
              transform: 'translateX(-50%)',
              marginTop: '8px'
            }),
            ...(position === 'left' && {
              right: '100%',
              top: '50%',
              transform: 'translateY(-50%)',
              marginRight: '8px'
            }),
            ...(position === 'right' && {
              left: '100%',
              top: '50%',
              transform: 'translateY(-50%)',
              marginLeft: '8px'
            })
          }}
        >
          <div className="tooltip-arrow" style={(() => {
            const styles = {
              position: 'absolute',
              width: '8px',
              height: '8px',
              background: 'inherit'
            }
            if (position === 'top') {
              styles.bottom = '0'
              styles.left = '50%'
              styles.transform = 'translateX(-50%) translateY(50%) rotate(45deg)'
            } else if (position === 'bottom') {
              styles.top = '0'
              styles.left = '50%'
              styles.transform = 'translateX(-50%) translateY(-50%) rotate(45deg)'
            } else if (position === 'left') {
              styles.right = '0'
              styles.top = '50%'
              styles.transform = 'translateX(50%) translateY(-50%) rotate(45deg)'
            } else if (position === 'right') {
              styles.left = '0'
              styles.top = '50%'
              styles.transform = 'translateX(-50%) translateY(-50%) rotate(45deg)'
            }
            return styles
          })()}></div>
          <div className="tooltip-inner">
            {content}
            {shortcut && (
              <kbd className="ms-2" style={{
                background: 'rgba(255, 255, 255, 0.2)',
                padding: '0.125rem 0.375rem',
                borderRadius: '0.25rem',
                fontSize: '0.75rem',
                fontFamily: 'monospace'
              }}>{shortcut}</kbd>
            )}
          </div>
        </div>
      )}
    </span>
  )
}

export default Tooltip