feat: multi lang feature

__tests__/unit/backend/helpers/generate-form-data.ts

@@ -76,6 +76,8 @@ export const generateDefaultField = (
     fieldType,
     required: true,
     disabled: false,
+    titleTranslations: [],
+    descriptionTranslations: [],
   }
   switch (fieldType) {
     case BasicField.Table:
@@ -102,6 +104,7 @@ export const generateDefaultField = (
       return {
         ...defaultParams,
         fieldOptions: ['Option 1', 'Option 2'],
+        fieldOptionsTranslations: [],
         getQuestion: () => defaultParams.title,
         ValidationOptions: {
           customMin: null,
@@ -141,6 +144,7 @@ export const generateDefaultField = (
       return {
         ...defaultParams,
         fieldOptions: ['Option 1', 'Option 2'],
+        fieldOptionsTranslations: [],
         getQuestion: () => defaultParams.title,
         ...customParams,
       } as IDropdownFieldSchema
@@ -401,6 +405,7 @@ export const generateTableDropdownColumn = (
     required: true,
     _id: new ObjectId().toHexString(),
     fieldOptions: ['a', 'b', 'c'],
+    fieldOptionsTranslations: [],
     ...customParams,
     toObject() {
       // mock toObject method of mongoose document
@@ -410,6 +415,7 @@ export const generateTableDropdownColumn = (
         required: true,
         _id: new ObjectId().toHexString(),
         fieldOptions: ['a', 'b', 'c'],
+        fieldOptionsTranslations: [],
         ...customParams,
       }
     },

frontend/src/assets/icons/LanguageTranslation.tsx

@@ -0,0 +1,16 @@
+export const LanguageTranslation = (
+  props: React.SVGProps<SVGSVGElement>,
+): JSX.Element => (
+  <svg
+    xmlns="http://www.w3.org/2000/svg"
+    width={24}
+    height={24}
+    fill="currentColor"
+    className="bi bi-translate"
+    viewBox="0 0 16 16"
+    {...props}
+  >
+    <path d="M4.545 6.714 4.11 8H3l1.862-5h1.284L8 8H6.833l-.435-1.286zm1.634-.736L5.5 3.956h-.049l-.679 2.022z" />
+    <path d="M0 2a2 2 0 0 1 2-2h7a2 2 0 0 1 2 2v3h3a2 2 0 0 1 2 2v7a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2v-3H2a2 2 0 0 1-2-2zm2-1a1 1 0 0 0-1 1v7a1 1 0 0 0 1 1h7a1 1 0 0 0 1-1V2a1 1 0 0 0-1-1zm7.138 9.995q.289.451.63.846c-.748.575-1.673 1.001-2.768 1.292.178.217.451.635.555.867 1.125-.359 2.08-.844 2.886-1.494.777.665 1.739 1.165 2.93 1.472.133-.254.414-.673.629-.89-1.125-.253-2.057-.694-2.82-1.284.681-.747 1.222-1.651 1.621-2.757H14V8h-3v1.047h.765c-.318.844-.74 1.546-1.272 2.13a6 6 0 0 1-.415-.492 2 2 0 0 1-.94.31" />
+  </svg>
+)

frontend/src/components/Checkbox/Checkbox.tsx

@@ -113,7 +113,7 @@ const OthersCheckbox = forwardRef<CheckboxProps, 'input'>((props, ref) => {
       {...props}
       onChange={handleCheckboxChange}
     >
-      {t('features.adminForm.sidebar.fields.radio.others')}
+      {t('features.publicForm.components.fields.option.others')}
     </Checkbox>
   )
 })

frontend/src/components/Dropdown/SingleSelect/SingleSelectProvider.tsx

@@ -51,7 +51,6 @@ export const SingleSelectProvider = ({
   onChange,
   name,
   filter = defaultFilter,
-  nothingFoundLabel = 'No matching results',
   placeholder: placeholderProp,
   clearButtonLabel = 'Clear selection',
   isClearable = true,
@@ -83,9 +82,16 @@ export const SingleSelectProvider = ({
 
   const placeholder = useMemo(() => {
     if (placeholderProp === null) return ''
-    return placeholderProp ?? t('features.common.dropdown.placeholder')
+    return (
+      placeholderProp ??
+      t('features.publicForm.components.fields.dropdown.placeholder')
+    )
   }, [placeholderProp, t])
 
+  const nothingFoundLabel = t(
+    'features.publicForm.components.fields.dropdown.nothingFound',
+  )
+
   const getFilteredItems = useCallback(
     (filterValue?: string) =>
       filterValue ? filter(items, filterValue) : items,

frontend/src/components/Field/Attachment/Attachment.tsx

@@ -148,14 +148,14 @@ export const Attachment = forwardRef<AttachmentProps, 'div'>(
             case 'file-invalid-type': {
               const fileExt = getFileExtension(rejectedFiles[0].file.name)
               errorMessage = t(
-                `features.adminForm.sidebar.fields.imageAttachment.error.fileInvalidType`,
+                `features.publicForm.components.fields.attachment.error.fileInvalidType`,
                 { fileExt },
               )
               break
             }
             case 'too-many-files': {
               errorMessage = t(
-                `features.adminForm.sidebar.fields.imageAttachment.error.tooManyFiles`,
+                `features.publicForm.components.fields.attachment.error.tooManyFiles`,
               )
               break
             }
@@ -178,15 +178,15 @@ export const Attachment = forwardRef<AttachmentProps, 'div'>(
               const stringOfInvalidExtensions = invalidFilesInZip.join(', ')
               return onError?.(
                 t(
-                  'features.adminForm.sidebar.fields.imageAttachment.error.zipFileInvalidType',
+                  'features.publicForm.components.fields.attachment.error.zipFileInvalidType',
                   { stringOfInvalidExtensions },
                 ),
               )
             }
           } catch {
             return onError?.(
               t(
-                'features.adminForm.sidebar.fields.imageAttachment.error.zipParsing',
+                'features.publicForm.components.fields.attachment.error.zipParsing',
               ),
             )
           }
@@ -224,7 +224,7 @@ export const Attachment = forwardRef<AttachmentProps, 'div'>(
             return {
               code: 'file-too-large',
               message: t(
-                'features.adminForm.sidebar.fields.imageAttachment.error.fileTooLarge',
+                'features.publicForm.components.fields.attachment.error.fileTooLarge',
                 { readableMaxSize },
               ),
             }
@@ -233,7 +233,7 @@ export const Attachment = forwardRef<AttachmentProps, 'div'>(
             return {
               code: 'file-empty',
               message: t(
-                'features.adminForm.sidebar.fields.imageAttachment.error.zipParsing',
+                'features.publicForm.components.fields.attachment.error.zipParsing',
               ),
             }
           }
@@ -336,7 +336,7 @@ export const Attachment = forwardRef<AttachmentProps, 'div'>(
               aria-hidden
             >
               {t(
-                'features.adminForm.sidebar.fields.imageAttachment.maxFileSize',
+                'features.publicForm.components.fields.attachment.maxFileSize',
                 {
                   readableMaxSize,
                 },

frontend/src/components/Field/Attachment/AttachmentDropzone.tsx

@@ -37,10 +37,10 @@ export const AttachmentDropzone = ({
         <Text aria-hidden>
           <Link isDisabled={inputProps.disabled}>
             {t(
-              'features.adminForm.sidebar.fields.imageAttachment.fileUploaderLink',
+              'features.publicForm.components.fields.attachment.fileUploaderLink',
             )}
           </Link>
-          {t('features.adminForm.sidebar.fields.imageAttachment.dragAndDrop')}
+          {t('features.publicForm.components.fields.attachment.dragAndDrop')}
         </Text>
       )}
     </>

frontend/src/components/Field/Attachment/AttachmentFileInfo.tsx

@@ -57,7 +57,7 @@ export const AttachmentFileInfo = ({
             variant="clear"
             colorScheme="danger"
             aria-label={t(
-              'features.adminForm.sidebar.fields.imageAttachment.ariaLabelRemove',
+              'features.publicForm.components.fields.attachment.ariaLabelRemove',
             )}
             icon={<BiTrash />}
             onClick={handleRemoveFile}

frontend/src/components/Field/YesNo/YesNo.tsx

@@ -88,7 +88,7 @@ export const YesNo = forwardRef<YesNoProps, 'input'>(
           {...noProps}
           onChange={(value) => onChange(value as YesNoOptionValue)}
           leftIcon={BiX}
-          label={t('features.adminForm.sidebar.fields.yesNo.no')}
+          label={t('features.publicForm.components.fields.yesNo.no')}
           // Ref is set here for tracking current value, and also so any errors
           // can focus this input.
           ref={ref}
@@ -100,7 +100,7 @@ export const YesNo = forwardRef<YesNoProps, 'input'>(
           {...yesProps}
           onChange={(value) => onChange(value as YesNoOptionValue)}
           leftIcon={BiCheck}
-          label={t('features.adminForm.sidebar.fields.yesNo.yes')}
+          label={t('features.publicForm.components.fields.yesNo.yes')}
           title={props.title}
         />
       </HStack>

frontend/src/components/FormEndPage/EndPageBlock.tsx

@@ -1,10 +1,12 @@
 import { useEffect, useMemo, useRef } from 'react'
+import { useTranslation } from 'react-i18next'
 import { Box, Text, VisuallyHidden } from '@chakra-ui/react'
 import { format } from 'date-fns'
 
-import { FormColorTheme, FormDto } from '~shared/types/form'
+import { FormColorTheme, FormDto, Language } from '~shared/types/form'
 
 import { useMdComponents } from '~hooks/useMdComponents'
+import { getValueInSelectedLanguage } from '~utils/multiLanguage'
 import Button from '~components/Button'
 import { MarkdownText } from '~components/MarkdownText'
 
@@ -27,6 +29,7 @@ export const EndPageBlock = ({
   focusOnMount,
   isButtonHidden,
 }: EndPageBlockProps): JSX.Element => {
+  const { i18n } = useTranslation()
   const focusRef = useRef<HTMLDivElement>(null)
   useEffect(() => {
     if (focusOnMount) {
@@ -43,6 +46,20 @@ export const EndPageBlock = ({
     },
   })
 
+  const selectedLanguage = i18n.language as Language
+
+  const title = getValueInSelectedLanguage({
+    defaultValue: endPage.title,
+    translations: endPage.titleTranslations,
+    selectedLanguage,
+  })
+
+  const paragraph = getValueInSelectedLanguage({
+    defaultValue: endPage.paragraph ?? '',
+    translations: endPage.paragraphTranslations,
+    selectedLanguage,
+  })
+
   const submissionTimestamp = useMemo(
     () => format(new Date(submissionData.timestamp), 'dd MMM yyyy, HH:mm:ss z'),
     [submissionData.timestamp],
@@ -62,13 +79,11 @@ export const EndPageBlock = ({
           {submittedAriaText}
         </VisuallyHidden>
         <Text as="h2" textStyle="h2" textColor="secondary.500">
-          {endPage.title}
+          {title}
         </Text>
-        {endPage.paragraph ? (
+        {paragraph ? (
           <Box mt="0.75rem">
-            <MarkdownText components={mdComponents}>
-              {endPage.paragraph}
-            </MarkdownText>
+            <MarkdownText components={mdComponents}>{paragraph}</MarkdownText>
           </Box>
         ) : null}
       </Box>

frontend/src/components/Radio/Radio.tsx

@@ -283,7 +283,7 @@ const OthersRadio = forwardRef<RadioProps, 'input'>((props, ref) => {
       // Required should apply to radio group rather than individual radio.
       isRequired={false}
     >
-      {t('features.adminForm.sidebar.fields.radio.others')}
+      {t('features.publicForm.components.fields.option.others')}
     </Radio>
   )
 })

frontend/src/constants/routes.ts

@@ -54,3 +54,7 @@ export const ACTIVE_ADMINFORM_RESULTS_ROUTE_REGEX = new RegExp(
 
 export const PAYMENT_PAGE_SUBROUTE = 'payment/:paymentId'
 export const EDIT_SUBMISSION_PAGE_SUBROUTE = 'edit/:submissionId'
+
+// Search param keys for multi-language
+export const UNICODE_LOCALE = 'unicodeLocale'
+export const TRANSLATION_INPUT = 'translationInput'

frontend/src/constants/validation.ts

@@ -1,8 +1,6 @@
 export const REQUIRED_ERROR = 'This field is required'
 
 export const INVALID_EMAIL_ERROR = 'Please enter a valid email'
-export const INVALID_EMAIL_DOMAIN_ERROR =
-  'The entered email does not belong to an allowed email domain'
 
 export const INVALID_DROPDOWN_OPTION_ERROR =
   'Entered value is not a valid dropdown option'

frontend/src/features/admin-form/create/CreatePage.tsx

@@ -1,7 +1,10 @@
 import { useEffect, useMemo } from 'react'
+import { useTranslation } from 'react-i18next'
 import { useNavigate, useParams } from 'react-router-dom'
 import { Flex } from '@chakra-ui/react'
 
+import { Language } from '~shared/types'
+
 import { FEATURE_TOUR_KEY_PREFIX } from '~constants/localStorage'
 import { ADMINFORM_RESULTS_SUBROUTE, ADMINFORM_ROUTE } from '~constants/routes'
 import { useLocalStorage } from '~hooks/useLocalStorage'
@@ -28,12 +31,16 @@ export const CreatePage = (): JSX.Element => {
   const { hasEditAccess, isLoading: isCollabLoading } =
     useAdminFormCollaborators(formId)
   const navigate = useNavigate()
+  const { i18n } = useTranslation()
 
   // Redirect view-only collaborators to results screen.
   useEffect(() => {
+    // Always default language key back to English
+    i18n.changeLanguage(Language.ENGLISH)
+
     if (!isCollabLoading && !hasEditAccess)
       navigate(`${ADMINFORM_ROUTE}/${formId}/${ADMINFORM_RESULTS_SUBROUTE}`)
-  }, [formId, hasEditAccess, isCollabLoading, navigate])
+  }, [formId, hasEditAccess, i18n, isCollabLoading, navigate])
 
   const { user, isLoading } = useUser()
   const localStorageFeatureTourKey = useMemo(() => {

frontend/src/features/admin-form/create/builder-and-design/BuilderAndDesignDrawer/EditFieldDrawer/edit-fieldtype/EditCheckbox/EditCheckbox.tsx

@@ -234,7 +234,7 @@ export const EditCheckbox = ({ field }: EditCheckboxProps): JSX.Element => {
       <FormControl isReadOnly={isLoading}>
         <Toggle
           {...register('othersRadioButton')}
-          label={t('features.adminForm.sidebar.fields.radio.others')}
+          label={t('features.publicForm.components.fields.option.others')}
         />
       </FormControl>
       <FormControl

frontend/src/features/admin-form/create/builder-and-design/BuilderAndDesignDrawer/EditFieldDrawer/edit-fieldtype/EditRadio/EditRadio.tsx

@@ -119,7 +119,7 @@ export const EditRadio = ({ field }: EditRadioProps): JSX.Element => {
       <FormControl isReadOnly={isLoading}>
         <Toggle
           {...register('othersRadioButton')}
-          label={t('features.adminForm.sidebar.fields.radio.others')}
+          label={t('features.publicForm.components.fields.option.others')}
         />
       </FormControl>
       <FormControl

frontend/src/features/admin-form/create/builder-and-design/utils/fieldCreation.ts

@@ -220,11 +220,19 @@ export const getMyInfoFieldCreationMeta = (
 ): MyInfoField => {
   const baseMeta: Pick<
     MyInfoField,
-    'disabled' | 'required' | 'title' | 'description' | 'fieldType' | 'myInfo'
+    | 'disabled'
+    | 'required'
+    | 'title'
+    | 'description'
+    | 'fieldType'
+    | 'myInfo'
+    | 'titleTranslations'
+    | 'descriptionTranslations'
   > = {
     disabled: false,
     required: true,
     title: MYINFO_ATTRIBUTE_MAP[myInfoAttribute].value,
+    titleTranslations: MYINFO_ATTRIBUTE_MAP[myInfoAttribute]?.titleTranslations,
     description: '',
     fieldType: MYINFO_ATTRIBUTE_MAP[myInfoAttribute].fieldType,
     myInfo: {

frontend/src/features/admin-form/create/logic/components/LogicContent/EditLogicBlock/EditCondition/EditConditionBlock.tsx

@@ -156,14 +156,14 @@ export const EditConditionBlock = ({
     switch (mappedField.fieldType) {
       case BasicField.YesNo:
         return [
-          t('features.adminForm.sidebar.fields.yesNo.yes'),
-          t('features.adminForm.sidebar.fields.yesNo.no'),
+          t('features.publicForm.components.fields.yesNo.yes'),
+          t('features.publicForm.components.fields.yesNo.no'),
         ]
       case BasicField.Radio:
         if (mappedField.othersRadioButton) {
           // 'Others' does not show up in fieldOptions
           return mappedField.fieldOptions.concat(
-            t('features.adminForm.sidebar.fields.radio.others'),
+            t('features.publicForm.components.fields.option.others'),
           )
         }
         return mappedField.fieldOptions

frontend/src/features/admin-form/create/logic/types.ts

@@ -12,4 +12,5 @@ export enum AdminEditLogicState {
 export type EditLogicInputs = FormLogic & {
   preventSubmitMessage?: PreventSubmitLogic['preventSubmitMessage']
   show?: ShowFieldLogic['show']
+  preventSubmitMessageTranslations?: PreventSubmitLogic['preventSubmitMessageTranslations']
 }

frontend/src/features/admin-form/preview/PreviewFormPage.tsx

@@ -13,6 +13,7 @@ import { FormFooter } from '~features/public-form/components/FormFooter'
 import FormInstructions from '~features/public-form/components/FormInstructions'
 import { PublicFormLogo } from '~features/public-form/components/FormLogo'
 import FormStartPage from '~features/public-form/components/FormStartPage'
+import LanguageControl from '~features/public-form/components/LanguageControl'
 import { PublicFormWrapper } from '~features/public-form/components/PublicFormWrapper'
 
 import { PreviewFormBannerContainer } from '../common/components/PreviewFormBanner'
@@ -31,6 +32,7 @@ export const PreviewFormPage = (): JSX.Element => {
         <FormSectionsProvider>
           <PublicFormLogo />
           <FormStartPage />
+          <LanguageControl />
           <PublicFormWrapper>
             <FormInstructions />
             <FormFields />