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

// MUI Imports
import Button from '@mui/material/Button'
import Drawer from '@mui/material/Drawer'
import IconButton from '@mui/material/IconButton'
import Typography from '@mui/material/Typography'
import Box from '@mui/material/Box'

// Third-party Imports
import { useForm, Controller } from 'react-hook-form'

// Component Imports
import CustomTextField from '@core/components/mui/TextField'
import CustomAutocomplete from '@/@core/components/mui/Autocomplete'
import { AccountRequest } from '@/services/queries/chartOfAccountType'
import { useChartOfAccount } from '@/services/queries/chartOfAccount'
import { Account, ChartOfAccount } from '@/types/services/chartOfAccount'
import { useAccountsMutation } from '@/services/mutations/account'

type Props = {
  open: boolean
  handleClose: () => void
  accountData?: Account[]
  setData: (data: Account[]) => void
  editingAccount?: Account | null
}

type FormValidateType = {
  name: string
  code: string
  account_type: string
  opening_balance: number
  description: string
  chart_of_account_id: string
}

// Vars
const initialData = {
  name: '',
  code: '',
  account_type: '',
  opening_balance: 0,
  description: '',
  chart_of_account_id: ''
}

// Static Account Types
const staticAccountTypes = [
  { id: '1', name: 'Cash', code: 'cash', description: 'Cash account' },
  { id: '2', name: 'Wallet', code: 'wallet', description: 'Digital wallet account' },
  { id: '3', name: 'Bank', code: 'bank', description: 'Bank account' },
  { id: '4', name: 'Credit', code: 'credit', description: 'Credit account' },
  { id: '5', name: 'Debit', code: 'debit', description: 'Debit account' },
  { id: '6', name: 'Asset', code: 'asset', description: 'Asset account' },
  { id: '7', name: 'Liability', code: 'liability', description: 'Liability account' },
  { id: '8', name: 'Equity', code: 'equity', description: 'Equity account' },
  { id: '9', name: 'Revenue', code: 'revenue', description: 'Revenue account' },
  { id: '10', name: 'Expense', code: 'expense', description: 'Expense account' }
]

const AccountFormDrawer = (props: Props) => {
  // Props
  const { open, handleClose, accountData, setData, editingAccount } = props

  // Determine if we're editing
  const isEdit = !!editingAccount

  const { data: accounts, isLoading: isLoadingAccounts } = useChartOfAccount({
    page: 1,
    limit: 100
  })

  const { createAccount, updateAccount } = useAccountsMutation()

  // Use static account types
  const accountTypeOptions = staticAccountTypes

  // Process chart of accounts for the dropdown
  const chartOfAccountOptions = accounts?.data.length
    ? accounts.data
        .filter(account => account.is_active) // Only show active accounts
        .map(account => ({
          id: account.id,
          code: account.code,
          name: account.name,
          description: account.description
        }))
    : []

  // Hooks
  const {
    control,
    reset: resetForm,
    handleSubmit,
    formState: { errors }
  } = useForm<FormValidateType>({
    defaultValues: initialData
  })

  // Reset form when editingAccount changes or drawer opens
  useEffect(() => {
    if (open) {
      if (editingAccount) {
        // Populate form with existing data
        resetForm({
          name: editingAccount.name,
          code: editingAccount.number,
          account_type: editingAccount.account_type,
          opening_balance: editingAccount.opening_balance,
          description: editingAccount.description || '',
          chart_of_account_id: editingAccount.chart_of_account_id
        })
      } else {
        // Reset to initial data for new account
        resetForm(initialData)
      }
    }
  }, [editingAccount, open, resetForm])

  const onSubmit = (data: FormValidateType) => {
    if (isEdit && editingAccount) {
      const accountRequest: AccountRequest = {
        chart_of_account_id: data.chart_of_account_id,
        name: data.name,
        number: data.code,
        account_type: data.account_type,
        opening_balance: data.opening_balance,
        description: data.description
      }
      updateAccount.mutate(
        { id: editingAccount.id, payload: accountRequest },
        {
          onSuccess: () => {
            handleClose()
            resetForm(initialData)
          }
        }
      )
    } else {
      // Create new account - this would typically be sent as AccountRequest to API
      const accountRequest: AccountRequest = {
        chart_of_account_id: data.chart_of_account_id,
        name: data.name,
        number: data.code,
        account_type: data.account_type,
        opening_balance: data.opening_balance,
        description: data.description
      }
      createAccount.mutate(accountRequest, {
        onSuccess: () => {
          handleClose()
          resetForm(initialData)
        }
      })
    }
  }

  const handleReset = () => {
    handleClose()
    resetForm(initialData)
  }

  return (
    <Drawer
      open={open}
      anchor='right'
      variant='temporary'
      onClose={handleReset}
      ModalProps={{ keepMounted: true }}
      sx={{
        '& .MuiDrawer-paper': {
          width: { xs: 300, sm: 400 },
          display: 'flex',
          flexDirection: 'column',
          height: '100%'
        }
      }}
    >
      {/* Sticky Header */}
      <Box
        sx={{
          position: 'sticky',
          top: 0,
          zIndex: 10,
          backgroundColor: 'background.paper',
          borderBottom: 1,
          borderColor: 'divider'
        }}
      >
        <div className='flex items-center justify-between plb-5 pli-6'>
          <Typography variant='h5'>{isEdit ? 'Edit Akun' : 'Tambah Akun Baru'}</Typography>
          <IconButton size='small' onClick={handleReset}>
            <i className='tabler-x text-2xl text-textPrimary' />
          </IconButton>
        </div>
      </Box>

      {/* Scrollable Content */}
      <Box sx={{ flex: 1, overflowY: 'auto' }}>
        <form id='account-form' onSubmit={handleSubmit(data => onSubmit(data))}>
          <div className='flex flex-col gap-6 p-6'>
            {/* Nama */}
            <div>
              <Typography variant='body2' className='mb-2'>
                Nama <span className='text-red-500'>*</span>
              </Typography>
              <Controller
                name='name'
                control={control}
                rules={{ required: true }}
                render={({ field }) => (
                  <CustomTextField
                    {...field}
                    fullWidth
                    placeholder='Nama'
                    {...(errors.name && { error: true, helperText: 'Field ini wajib diisi.' })}
                  />
                )}
              />
            </div>

            {/* Kode */}
            <div>
              <Typography variant='body2' className='mb-2'>
                Kode <span className='text-red-500'>*</span>
              </Typography>
              <Controller
                name='code'
                control={control}
                rules={{ required: true }}
                render={({ field }) => (
                  <CustomTextField
                    {...field}
                    fullWidth
                    placeholder='Kode'
                    {...(errors.code && { error: true, helperText: 'Field ini wajib diisi.' })}
                  />
                )}
              />
            </div>

            {/* Tipe Akun */}
            <div>
              <Typography variant='body2' className='mb-2'>
                Tipe Akun <span className='text-red-500'>*</span>
              </Typography>
              <Controller
                name='account_type'
                control={control}
                rules={{ required: true }}
                render={({ field: { onChange, value, ...field } }) => (
                  <CustomAutocomplete
                    {...field}
                    options={accountTypeOptions}
                    value={accountTypeOptions.find(option => option.code === value) || null}
                    onChange={(_, newValue) => onChange(newValue?.code || '')}
                    getOptionLabel={option => option.name}
                    renderOption={(props, option) => (
                      <Box component='li' {...props}>
                        <div>
                          <Typography variant='body2'>{option.name}</Typography>
                        </div>
                      </Box>
                    )}
                    renderInput={params => (
                      <CustomTextField
                        {...params}
                        placeholder='Pilih tipe akun'
                        {...(errors.account_type && { error: true, helperText: 'Field ini wajib diisi.' })}
                      />
                    )}
                    isOptionEqualToValue={(option, value) => option.code === value.code}
                  />
                )}
              />
            </div>

            {/* Chart of Account */}
            <div>
              <Typography variant='body2' className='mb-2'>
                Chart of Account <span className='text-red-500'>*</span>
              </Typography>
              <Controller
                name='chart_of_account_id'
                control={control}
                rules={{ required: true }}
                render={({ field: { onChange, value, ...field } }) => (
                  <CustomAutocomplete
                    {...field}
                    loading={isLoadingAccounts}
                    options={chartOfAccountOptions}
                    value={chartOfAccountOptions.find(option => option.id === value) || null}
                    onChange={(_, newValue) => onChange(newValue?.id || '')}
                    getOptionLabel={option => `${option.code} - ${option.name}`}
                    renderOption={(props, option) => (
                      <Box component='li' {...props}>
                        <div>
                          <Typography variant='body2'>
                            {option.code} - {option.name}
                          </Typography>
                          {option.description && (
                            <Typography variant='caption' color='textSecondary'>
                              {option.description}
                            </Typography>
                          )}
                        </div>
                      </Box>
                    )}
                    renderInput={params => (
                      <CustomTextField
                        {...params}
                        placeholder={isLoadingAccounts ? 'Loading chart of accounts...' : 'Pilih chart of account'}
                        {...(errors.chart_of_account_id && { error: true, helperText: 'Field ini wajib diisi.' })}
                      />
                    )}
                    isOptionEqualToValue={(option, value) => option.id === value.id}
                    disabled={isLoadingAccounts}
                    noOptionsText={isLoadingAccounts ? 'Loading...' : 'Tidak ada chart of account tersedia'}
                  />
                )}
              />
            </div>

            {/* Opening Balance */}
            <div>
              <Typography variant='body2' className='mb-2'>
                Saldo Awal <span className='text-red-500'>*</span>
              </Typography>
              <Controller
                name='opening_balance'
                control={control}
                rules={{ required: true, min: 0 }}
                render={({ field }) => (
                  <CustomTextField
                    {...field}
                    fullWidth
                    type='number'
                    placeholder='0'
                    onChange={e => field.onChange(Number(e.target.value))}
                    {...(errors.opening_balance && {
                      error: true,
                      helperText:
                        errors.opening_balance.type === 'min'
                          ? 'Saldo awal tidak boleh negatif.'
                          : 'Field ini wajib diisi.'
                    })}
                  />
                )}
              />
            </div>

            {/* Deskripsi */}
            <div>
              <Typography variant='body2' className='mb-2'>
                Deskripsi
              </Typography>
              <Controller
                name='description'
                control={control}
                render={({ field }) => (
                  <CustomTextField {...field} fullWidth multiline rows={3} placeholder='Deskripsi akun' />
                )}
              />
            </div>
          </div>
        </form>
      </Box>

      {/* Sticky Footer */}
      <Box
        sx={{
          position: 'sticky',
          bottom: 0,
          zIndex: 10,
          backgroundColor: 'background.paper',
          borderTop: 1,
          borderColor: 'divider',
          p: 3
        }}
      >
        <div className='flex items-center gap-4'>
          <Button variant='contained' type='submit' form='account-form'>
            {isEdit ? 'Update' : 'Simpan'}
          </Button>
          <Button variant='tonal' color='error' onClick={() => handleReset()}>
            Batal
          </Button>
        </div>
      </Box>
    </Drawer>
  )
}

export default AccountFormDrawer