import { Select, SelectContent, SelectItem, SelectItemIndicator, SelectItemText, SelectTrigger } from '@langgenius/dify-ui/select'
import { Textarea } from '@langgenius/dify-ui/textarea'
import { useCallback } from 'react'
import { useTranslation } from 'react-i18next'
import { FileUploaderInAttachmentWrapper } from '@/app/components/base/file-uploader'
import Input from '@/app/components/base/input'
import { InputVarType } from '@/app/components/workflow/types'

type Props = Readonly<{
  inputsForms: any[]
  inputs: Record<string, any>
  inputsRef: any
  onFormChange: (value: Record<string, any>) => void
}>
const AppInputsForm = ({
  inputsForms,
  inputs,
  inputsRef,
  onFormChange,
}: Props) => {
  const { t } = useTranslation()

  const handleFormChange = useCallback((variable: string, value: any) => {
    onFormChange({
      ...inputsRef.current,
      [variable]: value,
    })
  }, [onFormChange, inputsRef])

  const renderField = (form: any) => {
    const {
      label,
      variable,
      options,
    } = form
    if (form.type === InputVarType.textInput) {
      return (
        <Input
          value={inputs[variable] || ''}
          onChange={e => handleFormChange(variable, e.target.value)}
          placeholder={label}
        />
      )
    }
    if (form.type === InputVarType.number) {
      return (
        <Input
          type="number"
          value={inputs[variable] || ''}
          onChange={e => handleFormChange(variable, e.target.value)}
          placeholder={label}
        />
      )
    }
    if (form.type === InputVarType.paragraph) {
      return (
        <Textarea
          aria-label={label}
          value={inputs[variable] || ''}
          onValueChange={value => handleFormChange(variable, value)}
          placeholder={label}
        />
      )
    }
    if (form.type === InputVarType.select) {
      const selectOptions: Array<{ value: string, name: string }> = options.map((option: string) => ({ value: option, name: option }))
      const selectedOption = selectOptions.find(option => option.value === (inputs[variable] || '')) ?? null

      return (
        <Select value={selectedOption?.value ?? null} onValueChange={value => value && handleFormChange(variable, value)}>
          <SelectTrigger className="w-full">
            {selectedOption?.name ?? label}
          </SelectTrigger>
          <SelectContent>
            {selectOptions.map(option => (
              <SelectItem key={option.value} value={option.value}>
                <SelectItemText>{option.name}</SelectItemText>
                <SelectItemIndicator />
              </SelectItem>
            ))}
          </SelectContent>
        </Select>
      )
    }
    if (form.type === InputVarType.singleFile) {
      return (
        <FileUploaderInAttachmentWrapper
          value={inputs[variable] ? [inputs[variable]] : []}
          onChange={files => handleFormChange(variable, files[0])}
          fileConfig={{
            allowed_file_types: form.allowed_file_types,
            allowed_file_extensions: form.allowed_file_extensions,
            allowed_file_upload_methods: form.allowed_file_upload_methods,
            number_limits: 1,
            fileUploadConfig: (form as any).fileUploadConfig,
          }}
        />
      )
    }
    if (form.type === InputVarType.multiFiles) {
      return (
        <FileUploaderInAttachmentWrapper
          value={inputs[variable]}
          onChange={files => handleFormChange(variable, files)}
          fileConfig={{
            allowed_file_types: form.allowed_file_types,
            allowed_file_extensions: form.allowed_file_extensions,
            allowed_file_upload_methods: form.allowed_file_upload_methods,
            number_limits: form.max_length,
            fileUploadConfig: (form as any).fileUploadConfig,
          }}
        />
      )
    }
  }

  if (!inputsForms.length)
    return null

  return (
    <div className="flex flex-col gap-4 px-4 py-2">
      {inputsForms.map(form => (
        <div key={form.variable}>
          <div className="mb-1 flex h-6 items-center gap-1 system-sm-semibold text-text-secondary">
            <div className="truncate">{form.label}</div>
            {!form.required && <span className="system-xs-regular text-text-tertiary">{t('panel.optional', { ns: 'workflow' })}</span>}
          </div>
          {renderField(form)}
        </div>
      ))}
    </div>
  )
}

export default AppInputsForm
