import { useEffect, useRef, useState } from 'react'
import { User } from '../types'
import { useT, toggleLang } from '../i18n'

interface Props {
  user: User
  sbUsers?: any[]
  onLogout: () => void
  onViewProfile?: () => void
}

const ROLE_COLOR: Record<string, string> = {
  Manager: '#2563eb',
  Auditor: '#d97706',
  Employee: '#6b7280',
  Admin: '#7c3aed',
  'X-Auditor': '#0f766e',
  Chairman: '#0f766e',
}

export default function UserMenu({ user, sbUsers = [], onLogout, onViewProfile }: Props) {
  const [open, setOpen] = useState(false)
  const ref = useRef<HTMLDivElement>(null)
  const t = useT()

  useEffect(() => {
    const handler = (e: MouseEvent) => {
      if (ref.current && !ref.current.contains(e.target as Node)) setOpen(false)
    }
    document.addEventListener('mousedown', handler)
    return () => document.removeEventListener('mousedown', handler)
  }, [])

  const sbUser = sbUsers.find(u => u.name === user.name || u.username === user.name)
  const category = sbUser?.custom_category || user.role || 'User'
  const initials = (user.full_name || user.name || 'U').charAt(0).toUpperCase()
  const roleColor = ROLE_COLOR[user.role] || '#6b7280'

  return (
    <div ref={ref} style={{ position: 'relative', display: 'flex', alignItems: 'center', gap: 8 }}>
      <button
        onClick={() => setOpen(o => !o)}
        style={{
          display: 'flex', alignItems: 'center', gap: 7,
          background: open ? '#f1f5f9' : 'transparent',
          border: '1px solid transparent',
          borderRadius: 20, padding: '4px 10px 4px 5px',
          cursor: 'pointer', transition: 'background 0.15s',
        }}>
        <div style={{
          width: 28, height: 28, borderRadius: '50%',
          background: roleColor, color: 'white',
          display: 'flex', alignItems: 'center', justifyContent: 'center',
          fontSize: 12, fontWeight: 700, flexShrink: 0,
          boxShadow: '0 1px 3px rgba(0,0,0,0.2)',
        }}>
          {initials}
        </div>
        <span style={{ fontSize: 12, fontWeight: 600, color: '#374151', whiteSpace: 'nowrap', maxWidth: 90, overflow: 'hidden', textOverflow: 'ellipsis' }}>
          {user.full_name || user.name}
        </span>
        <span style={{ fontSize: 9, color: '#9ca3af' }}>{open ? '▲' : '▼'}</span>
      </button>

      {open && (
        <div style={{
          position: 'absolute', right: 0, top: 'calc(100% + 6px)',
          width: 220, background: 'white', borderRadius: 10,
          boxShadow: '0 8px 32px rgba(0,0,0,0.15)', zIndex: 10000,
          border: '1px solid #e5e7eb', overflow: 'hidden',
        }}>
          <div style={{ padding: '14px 16px', borderBottom: '1px solid #f0f0f0', background: '#f8fafc', display: 'flex', alignItems: 'center', gap: 10 }}>
            <div style={{
              width: 36, height: 36, borderRadius: '50%', background: roleColor,
              color: 'white', display: 'flex', alignItems: 'center', justifyContent: 'center',
              fontSize: 15, fontWeight: 700, flexShrink: 0,
            }}>
              {initials}
            </div>
            <div style={{ minWidth: 0 }}>
              <div style={{ fontSize: 13, fontWeight: 700, color: '#1a2332', overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>
                {user.full_name || user.name}
              </div>
              <div style={{ fontSize: 10, color: '#888', marginTop: 1, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>
                {user.name}
              </div>
              <div style={{
                display: 'inline-block', marginTop: 4, padding: '1px 8px',
                background: roleColor + '18', color: roleColor,
                fontSize: 10, fontWeight: 700, borderRadius: 8, border: '1px solid ' + roleColor + '44',
              }}>
                {category}
              </div>
            </div>
          </div>

          <div style={{ padding: '4px 0' }}>
            <MenuRow icon="👤" label={t.myProfile} onClick={() => { onViewProfile?.(); setOpen(false) }} />
            <MenuRow
              icon="🌐"
              label={t.switchLang}
              onClick={() => { toggleLang(); setOpen(false) }}
            />
            <div style={{ height: 1, background: '#f0f0f0', margin: '4px 8px' }} />
            <MenuRow icon="↩" label={t.signOut} color="#ef4444" onClick={() => { onLogout(); setOpen(false) }} />
          </div>
        </div>
      )}
    </div>
  )
}

function MenuRow({ icon, label, color = '#374151', onClick }: { icon: string; label: string; color?: string; onClick: () => void }) {
  const [hover, setHover] = useState(false)
  return (
    <div onClick={onClick} onMouseEnter={() => setHover(true)} onMouseLeave={() => setHover(false)}
      style={{
        padding: '8px 14px', fontSize: 13, color, cursor: 'pointer',
        display: 'flex', alignItems: 'center', gap: 9,
        background: hover ? (color === '#ef4444' ? '#fef2f2' : '#f9fafb') : 'white',
        transition: 'background 0.1s',
      }}>
      <span style={{ fontSize: 14, width: 18, textAlign: 'center' }}>{icon}</span>
      {label}
    </div>
  )
}