// React Imports
import React, { useState } from 'react'

// MUI Imports
import Button from '@mui/material/Button'
import Menu from '@mui/material/Menu'
import MenuItem from '@mui/material/MenuItem'
import { styled } from '@mui/material/styles'

const DropdownButton = styled(Button)(({ theme }) => ({
  textTransform: 'none',
  fontWeight: 400,
  borderRadius: '8px',
  borderColor: '#e0e0e0',
  color: '#666',
  '&:hover': {
    borderColor: '#ccc',
    backgroundColor: 'rgba(0, 0, 0, 0.04)'
  }
}))

interface StatusFilterTabsProps {
  /**
   * Array of status options to display as filter tabs
   */
  statusOptions: string[]
  /**
   * Currently selected status filter
   */
  selectedStatus: string
  /**
   * Callback function when a status is selected
   */
  onStatusChange: (status: string) => void
  /**
   * Custom className for the container
   */
  className?: string
  /**
   * Custom styles for the container
   */
  containerStyle?: React.CSSProperties
  /**
   * Size of the buttons
   */
  buttonSize?: 'small' | 'medium' | 'large'
  /**
   * Maximum number of status options to show as buttons before switching to dropdown
   */
  maxButtonsBeforeDropdown?: number
  /**
   * Label for the dropdown when there are many options
   */
  dropdownLabel?: string
}

const StatusFilterTabs: React.FC<StatusFilterTabsProps> = ({
  statusOptions,
  selectedStatus,
  onStatusChange,
  className = '',
  containerStyle = {},
  buttonSize = 'small',
  maxButtonsBeforeDropdown = 5,
  dropdownLabel = 'Lainnya'
}) => {
  const [anchorEl, setAnchorEl] = useState<null | HTMLElement>(null)
  const open = Boolean(anchorEl)

  const handleDropdownClick = (event: React.MouseEvent<HTMLElement>) => {
    setAnchorEl(event.currentTarget)
  }

  const handleDropdownClose = () => {
    setAnchorEl(null)
  }

  const handleDropdownItemClick = (status: string) => {
    onStatusChange(status)
    handleDropdownClose()
  }

  // If status options are <= maxButtonsBeforeDropdown, show all as buttons
  if (statusOptions.length <= maxButtonsBeforeDropdown) {
    return (
      <div className='flex flex-wrap gap-2'>
        {statusOptions.map(status => (
          <Button
            key={status}
            variant={selectedStatus === status ? 'contained' : 'outlined'}
            color={selectedStatus === status ? 'primary' : 'inherit'}
            onClick={() => onStatusChange(status)}
            size={buttonSize}
            className='rounded-lg'
            sx={{
              textTransform: 'none',
              fontWeight: selectedStatus === status ? 600 : 400,
              borderRadius: '8px',
              ...(selectedStatus !== status && {
                borderColor: '#e0e0e0',
                color: '#666'
              })
            }}
          >
            {status}
          </Button>
        ))}
      </div>
    )
  }

  // If more than maxButtonsBeforeDropdown, show first few as buttons and rest in dropdown
  const buttonStatuses = statusOptions.slice(0, maxButtonsBeforeDropdown - 1)
  const dropdownStatuses = statusOptions.slice(maxButtonsBeforeDropdown - 1)
  const isDropdownItemSelected = dropdownStatuses.includes(selectedStatus)

  return (
    <div className='flex flex-wrap gap-2'>
      {/* Regular buttons for first few statuses */}
      {buttonStatuses.map(status => (
        <Button
          key={status}
          variant={selectedStatus === status ? 'contained' : 'outlined'}
          color={selectedStatus === status ? 'primary' : 'inherit'}
          onClick={() => onStatusChange(status)}
          size={buttonSize}
          className='rounded-lg'
          sx={{
            textTransform: 'none',
            fontWeight: selectedStatus === status ? 600 : 400,
            borderRadius: '8px',
            ...(selectedStatus !== status && {
              borderColor: '#e0e0e0',
              color: '#666'
            })
          }}
        >
          {status}
        </Button>
      ))}

      {/* Dropdown button for remaining statuses */}
      <DropdownButton
        variant='outlined'
        onClick={handleDropdownClick}
        size={buttonSize}
        endIcon={<i className='tabler-chevron-down' />}
        sx={{
          ...(isDropdownItemSelected && {
            backgroundColor: 'primary.main',
            color: 'primary.contrastText',
            borderColor: 'primary.main',
            fontWeight: 600,
            '&:hover': {
              backgroundColor: 'primary.dark',
              borderColor: 'primary.dark'
            }
          })
        }}
      >
        {isDropdownItemSelected ? selectedStatus : dropdownLabel}
      </DropdownButton>

      <Menu
        anchorEl={anchorEl}
        open={open}
        onClose={handleDropdownClose}
        PaperProps={{
          elevation: 3,
          sx: {
            mt: 1,
            borderRadius: '8px',
            minWidth: '160px'
          }
        }}
        transformOrigin={{ horizontal: 'left', vertical: 'top' }}
        anchorOrigin={{ horizontal: 'left', vertical: 'bottom' }}
      >
        {dropdownStatuses.map(status => (
          <MenuItem
            key={status}
            onClick={() => handleDropdownItemClick(status)}
            selected={selectedStatus === status}
            sx={{
              fontSize: '14px',
              fontWeight: selectedStatus === status ? 600 : 400,
              color: selectedStatus === status ? 'primary.main' : 'text.primary'
            }}
          >
            {status}
          </MenuItem>
        ))}
      </Menu>
    </div>
  )
}

export default StatusFilterTabs

// Example usage:
/*
import StatusFilterTabs from '@/components/StatusFilterTabs'

// In your component:
const [statusFilter, setStatusFilter] = useState('Semua')

// For few statuses (will show all as buttons)
const expenseStatusOptions = ['Semua', 'Belum Dibayar', 'Dibayar Sebagian', 'Lunas']

// For many statuses (will show some buttons + dropdown)
const manyStatusOptions = [
  'Semua', 
  'Belum Dibayar', 
  'Dibayar Sebagian', 
  'Lunas', 
  'Void', 
  'Retur',
  'Jatuh Tempo',
  'Transaksi Berulang',
  'Ditangguhkan',
  'Dibatalkan'
]

<StatusFilterTabs
  statusOptions={expenseStatusOptions}
  selectedStatus={statusFilter}
  onStatusChange={setStatusFilter}
/>

// With many options (will automatically use dropdown)
<StatusFilterTabs
  statusOptions={manyStatusOptions}
  selectedStatus={statusFilter}
  onStatusChange={setStatusFilter}
  maxButtonsBeforeDropdown={4} // Show 3 buttons + dropdown
  dropdownLabel="Status Lain"
/>

// Custom configuration
<StatusFilterTabs
  statusOptions={manyStatusOptions}
  selectedStatus={statusFilter}
  onStatusChange={setStatusFilter}
  maxButtonsBeforeDropdown={3}
  dropdownLabel="Lainnya"
  buttonSize="medium"
  showBorder={false}
/>
*/