import type { FC } from 'react'
import { useState } from 'react'
import useSWR from 'swr'
import { useContext } from 'use-context-selector'
import { useTranslation } from 'react-i18next'
import FormGeneration from '../toolbox/moderation/form-generation'
import Modal from '@/app/components/base/modal'
import Button from '@/app/components/base/button'
import AppIcon from '@/app/components/base/app-icon'
import EmojiPicker from '@/app/components/base/emoji-picker'
import ApiBasedExtensionSelector from '@/app/components/header/account-setting/api-based-extension-page/selector'
import { BookOpen01 } from '@/app/components/base/icons/src/vender/line/education'
import { fetchCodeBasedExtensionList } from '@/service/common'
import { SimpleSelect } from '@/app/components/base/select'
import I18n from '@/context/i18n'
import type {
  CodeBasedExtensionItem,
  ExternalDataTool,
} from '@/models/common'
import { useToastContext } from '@/app/components/base/toast'

const systemTypes = ['api']
type ExternalDataToolModalProps = {
  data: ExternalDataTool
  onCancel: () => void
  onSave: (externalDataTool: ExternalDataTool) => void
  onValidateBeforeSave?: (externalDataTool: ExternalDataTool) => boolean
}
type Provider = {
  key: string
  name: string
  form_schema?: CodeBasedExtensionItem['form_schema']
}
const ExternalDataToolModal: FC<ExternalDataToolModalProps> = ({
  data,
  onCancel,
  onSave,
  onValidateBeforeSave,
}) => {
  const { t } = useTranslation()
  const { notify } = useToastContext()
  const { locale } = useContext(I18n)
  const [localeData, setLocaleData] = useState(data.type ? data : { ...data, type: 'api' })
  const [showEmojiPicker, setShowEmojiPicker] = useState(false)
  const { data: codeBasedExtensionList } = useSWR(
    '/code-based-extension?module=external_data_tool',
    fetchCodeBasedExtensionList,
  )

  const providers: Provider[] = [
    {
      key: 'api',
      name: t('common.apiBasedExtension.selector.title'),
    },
    ...(
      codeBasedExtensionList
        ? codeBasedExtensionList.data.map((item) => {
          return {
            key: item.name,
            name: locale === 'zh-Hans' ? item.label['zh-Hans'] : item.label['en-US'],
            form_schema: item.form_schema,
          }
        })
        : []
    ),
  ]
  const currentProvider = providers.find(provider => provider.key === localeData.type)

  const handleDataTypeChange = (type: string) => {
    setLocaleData({
      ...localeData,
      type,
      config: undefined,
    })
  }

  const handleDataExtraChange = (extraValue: Record<string, string>) => {
    setLocaleData({
      ...localeData,
      config: {
        ...localeData.config,
        ...extraValue,
      },
    })
  }

  const handleValueChange = (value: Record<string, string>) => {
    setLocaleData({
      ...localeData,
      ...value,
    })
  }

  const handleDataApiBasedChange = (apiBasedExtensionId: string) => {
    setLocaleData({
      ...localeData,
      config: {
        ...localeData.config,
        api_based_extension_id: apiBasedExtensionId,
      },
    })
  }

  const formatData = (originData: ExternalDataTool) => {
    const { type, config } = originData
    const params: Record<string, string | undefined> = {}

    if (type === 'api')
      params.api_based_extension_id = config?.api_based_extension_id

    if (systemTypes.findIndex(t => t === type) < 0 && currentProvider?.form_schema) {
      currentProvider.form_schema.forEach((form) => {
        params[form.variable] = config?.[form.variable]
      })
    }

    return {
      ...originData,
      type,
      enabled: data.type ? data.enabled : true,
      config: {
        ...params,
      },
    }
  }

  const handleSave = () => {
    if (!localeData.type) {
      notify({ type: 'error', message: t('appDebug.errorMessage.valueOfVarRequired', { key: t('appDebug.feature.tools.modal.toolType.title') }) })
      return
    }

    if (!localeData.label) {
      notify({ type: 'error', message: t('appDebug.errorMessage.valueOfVarRequired', { key: t('appDebug.feature.tools.modal.name.title') }) })
      return
    }

    if (!localeData.variable) {
      notify({ type: 'error', message: t('appDebug.errorMessage.valueOfVarRequired', { key: t('appDebug.feature.tools.modal.variableName.title') }) })
      return
    }

    if (localeData.variable && !/[a-zA-Z_][a-zA-Z0-9_]{0,29}/g.test(localeData.variable)) {
      notify({ type: 'error', message: t('appDebug.varKeyError.notValid', { key: t('appDebug.feature.tools.modal.variableName.title') }) })
      return
    }

    if (localeData.type === 'api' && !localeData.config?.api_based_extension_id) {
      notify({ type: 'error', message: t('appDebug.errorMessage.valueOfVarRequired', { key: locale === 'en' ? 'API-based Extension' : '基于 API 的扩展' }) })
      return
    }

    if (systemTypes.findIndex(t => t === localeData.type) < 0 && currentProvider?.form_schema) {
      for (let i = 0; i < currentProvider.form_schema.length; i++) {
        if (!localeData.config?.[currentProvider.form_schema[i].variable]) {
          notify({
            type: 'error',
            message: t('appDebug.errorMessage.valueOfVarRequired', { key: locale === 'en' ? currentProvider.form_schema[i].label['en-US'] : currentProvider.form_schema[i].label['zh-Hans'] }),
          })
          return
        }
      }
    }

    const formatedData = formatData(localeData)

    if (onValidateBeforeSave && !onValidateBeforeSave(formatedData))
      return

    onSave(formatData(formatedData))
  }

  const action = data.type ? t('common.operation.edit') : t('common.operation.add')

  return (
    <Modal
      isShow
      onClose={() => {}}
      className='!p-8 !pb-6 !max-w-none !w-[640px]'
    >
      <div className='mb-2 text-xl font-semibold text-gray-900'>
        {`${action} ${t('appDebug.feature.tools.modal.title')}`}
      </div>
      <div className='py-2'>
        <div className='leading-9 text-sm font-medium text-gray-900'>
          {t('appDebug.feature.tools.modal.toolType.title')}
        </div>
        <SimpleSelect
          defaultValue={localeData.type}
          items={providers.map((option) => {
            return {
              value: option.key,
              name: option.name,
            }
          })}
          onSelect={item => handleDataTypeChange(item.value as string)}
        />
      </div>
      <div className='py-2'>
        <div className='leading-9 text-sm font-medium text-gray-900'>
          {t('appDebug.feature.tools.modal.name.title')}
        </div>
        <div className='flex items-center'>
          <input
            value={localeData.label || ''}
            onChange={e => handleValueChange({ label: e.target.value })}
            className='grow block mr-2 px-3 h-9 bg-gray-100 rounded-lg text-sm text-gray-900 outline-none appearance-none'
            placeholder={t('appDebug.feature.tools.modal.name.placeholder') || ''}
          />
          <AppIcon size='large'
            onClick={() => { setShowEmojiPicker(true) }}
            className='!w-9 !h-9 rounded-lg border-[0.5px] border-black/5 cursor-pointer '
            icon={localeData.icon}
            background={localeData.icon_background}
          />
        </div>
      </div>
      <div className='py-2'>
        <div className='leading-9 text-sm font-medium text-gray-900'>
          {t('appDebug.feature.tools.modal.variableName.title')}
        </div>
        <input
          value={localeData.variable || ''}
          onChange={e => handleValueChange({ variable: e.target.value })}
          className='block px-3 w-full h-9 bg-gray-100 rounded-lg text-sm text-gray-900 outline-none appearance-none'
          placeholder={t('appDebug.feature.tools.modal.variableName.placeholder') || ''}
        />
      </div>
      {
        localeData.type === 'api' && (
          <div className='py-2'>
            <div className='flex justify-between items-center h-9 text-sm font-medium text-gray-900'>
              {t('common.apiBasedExtension.selector.title')}
              <a
                href={t('common.apiBasedExtension.linkUrl') || '/'}
                target='_blank'
                className='group flex items-center text-xs font-normal text-gray-500 hover:text-primary-600'
              >
                <BookOpen01 className='mr-1 w-3 h-3 text-gray-500 group-hover:text-primary-600' />
                {t('common.apiBasedExtension.link')}
              </a>
            </div>
            <ApiBasedExtensionSelector
              value={localeData.config?.api_based_extension_id || ''}
              onChange={handleDataApiBasedChange}
            />
          </div>
        )
      }
      {
        systemTypes.findIndex(t => t === localeData.type) < 0
        && currentProvider?.form_schema
        && (
          <FormGeneration
            forms={currentProvider?.form_schema}
            value={localeData.config}
            onChange={handleDataExtraChange}
          />
        )
      }
      <div className='flex items-center justify-end mt-6'>
        <Button
          onClick={onCancel}
          className='mr-2 text-sm font-medium'
        >
          {t('common.operation.cancel')}
        </Button>
        <Button
          type='primary'
          className='text-sm font-medium'
          onClick={handleSave}
        >
          {t('common.operation.save')}
        </Button>
      </div>
      {
        showEmojiPicker && (
          <EmojiPicker
            onSelect={(icon, icon_background) => {
              handleValueChange({ icon, icon_background })
              setShowEmojiPicker(false)
            }}
            onClose={() => {
              handleValueChange({ icon: '', icon_background: '' })
              setShowEmojiPicker(false)
            }}
          />
        )
      }
    </Modal>
  )
}

export default ExternalDataToolModal
