Load locale ondemand + spanish locale (#249)

declarations/i18next.d.ts

@@ -2,6 +2,7 @@ import "react-i18next";
 
 import app from "~/public/locales/en/app.json";
 import common from "~/public/locales/en/common.json";
+import errors from "~/public/locales/en/errors.json";
 import homepage from "~/public/locales/en/homepage.json";
 
 declare module "next-i18next" {
@@ -9,5 +10,6 @@ declare module "next-i18next" {
     homepage: typeof homepage;
     app: typeof app;
     common: typeof common;
+    errors: typeof errors;
   }
 }

next-i18next.config.js

@@ -3,7 +3,7 @@ const path = require("path");
 module.exports = {
   i18n: {
     defaultLocale: "en",
-    locales: ["en", "de", "fr", "sv"],
+    locales: ["en", "es", "de", "fr", "sv"],
     localePath: path.resolve("./public/locales"),
     reloadOnPrerender: process.env.NODE_ENV === "development",
   },

public/locales/en/common.json

@@ -17,5 +17,9 @@
   "starOnGithub": "Star us on Github",
   "support": "Support",
   "swedish": "Swedish",
-  "volunteerTranslator": "Help translate this site"
+  "volunteerTranslator": "Help translate this site",
+  "notFoundTitle": "404 not found",
+  "notFoundDescription": "We couldn't find the page you're looking for.",
+  "goToHome": "Go to home",
+  "startChat": "Start chat"
 }

public/locales/en/errors.json

@@ -0,0 +1,6 @@
+{
+  "notFoundTitle": "404 not found",
+  "notFoundDescription": "We couldn't find the page you're looking for.",
+  "goToHome": "Go to home",
+  "startChat": "Start chat"
+}

public/locales/es/app.json

@@ -0,0 +1,128 @@
+{
+  "12h": "12h",
+  "24h": "24h",
+  "addParticipant": "Añadir participante",
+  "addTimeOption": "Añadir hora",
+  "alreadyVoted": "Ya has votado",
+  "applyToAllDates": "Aplicar a todas las fechas",
+  "areYouSure": "¿Estás seguro?",
+  "back": "Volver",
+  "calendarHelp": "No puedes crear una encuesta sin ninguna opción. Añada al menos una opción para continuar.",
+  "calendarHelpTitle": "¿Olvidaste algo?",
+  "cancel": "Cancelar",
+  "comment": "Comentario",
+  "commentPlaceholder": "Dejar un comentario en esta encuesta (visible para todos)",
+  "comments": "Comentarios",
+  "continue": "Continuar",
+  "copied": "Copiado",
+  "copyLink": "Copiar enlace",
+  "createdBy": "de <b>{{name}}</b>",
+  "createPoll": "Crear encuesta",
+  "creatingDemo": "Creando una encuesta de demostración…",
+  "delete": "Borrar",
+  "deleteComment": "Borrar comentario",
+  "deleteDate": "Borrar fecha",
+  "deletedPoll": "Encuesta borrada",
+  "deletedPollInfo": "Esta encuesta ya no existe.",
+  "deletePoll": "Borrar encuesta",
+  "deletePollDescription": "Todos los datos relacionados con esta encuesta se eliminarán. Para confirmar, por favor escribe <s>“{{confirmText}}”</s> en el campo siguiente:",
+  "deletingOptionsWarning": "Estás eliminando opciones por las que algunos participantes han votado. También se eliminarán sus votos.",
+  "demoPollNotice": "Las encuestas de demostración se eliminan automáticamente después de 1 día",
+  "description": "Descripción",
+  "descriptionPlaceholder": "¡Hola a todos, por favor elijan las fechas que les convengan!",
+  "donate": "Donar",
+  "editDetails": "Editar detalles",
+  "editOptions": "Editar opciones",
+  "email": "Correo electrónico",
+  "emailPlaceholder": "jessie.smith@email.com",
+  "endingGuestSessionNotice": "Una vez que finalices la sesión de visitante, no se puede reanudar. No podrás editar ningún voto o comentario que hayas hecho con esta sesión.",
+  "endSession": "Cerrar Sesión",
+  "errorCreate": "¡Oh! Hubo un problema al crear tu encuesta. El error ha sido registrado y vamos a intentar arreglarlo.",
+  "exportToCsv": "Exportar a CSV",
+  "finish": "Finalizar",
+  "forgetMe": "Olvídame",
+  "goToAdmin": "Ir al panel de administración",
+  "guest": "Visitante",
+  "guestSessionNotice": "Estás usando una sesión de visitante. Esto nos permite reconocerte si vuelves más tarde para que puedas editar tus votos.",
+  "guestSessionReadMore": "Lee más sobre sesiones de visitantes.",
+  "hide": "Ocultar",
+  "ifNeedBe": "Si es necesario",
+  "linkHasExpired": "Tu enlace ha expirado o ya no es válido",
+  "loading": "Cargando…",
+  "loadingParticipants": "Cargando participantes…",
+  "location": "Ubicación",
+  "locationPlaceholder": "Café de Carlos",
+  "lockPoll": "Bloquear encuesta",
+  "login": "Iniciar sesión",
+  "loginCheckInbox": "Por favor, revisa tus correos electrónicos.",
+  "loginMagicLinkSent": "Se ha enviado un enlace mágico a:",
+  "loginSendMagicLink": "Enviarme un enlace mágico",
+  "loginViaMagicLink": "Iniciar sesión a través de un enlace mágico",
+  "loginViaMagicLinkDescription": "Te enviaremos un correo electrónico con un enlace mágico que puedes usar para iniciar sesión.",
+  "loginWithValidEmail": "Por favor ingresa un correo electrónico válido",
+  "logout": "Cerrar sesión",
+  "manage": "Gestionar",
+  "menu": "Menú",
+  "mixedOptionsDescription": "No puedes tener opciones de fecha y opciones de hora en la misma encuesta. ¿Cuáles quieres mantener?",
+  "mixedOptionsKeepDates": "Mantener las opciones de fecha",
+  "mixedOptionsKeepTimes": "Mantener las opciones de hora",
+  "mixedOptionsTitle": "Aguanta un minuto…🤔",
+  "monday": "Lunes",
+  "monthView": "Vista mensual",
+  "name": "Nombre",
+  "namePlaceholder": "Jessie Smith",
+  "newPoll": "Nueva encuesta",
+  "next": "Siguiente",
+  "nextMonth": "Siguiente mes",
+  "no": "No",
+  "noDatesSelected": "Ninguna fecha seleccionada",
+  "notificationsDisabled": "Las notificaciones han sido desactivadas",
+  "notificationsOff": "Las notificaciones están desactivadas",
+  "notificationsOn": "Las notificaciones están activadas",
+  "notificationsOnDescription": "Vamos a mandar un correo electrónico a <b>{{email}}</b> cuando haya actividad en esta encuesta.",
+  "notificationsVerifyEmail": "Tienes que verificar tu correo electrónico para activar las notificaciones",
+  "ok": "Aceptar",
+  "options": "Opciones",
+  "participant": "Participante",
+  "participantCount_other": "{{count}} participantes",
+  "participantCount": "{{count}} participante",
+  "pollHasBeenLocked": "Esta encuesta ha sido bloqueada",
+  "pollHasBeenVerified": "Esta encuesta ha sido verificada",
+  "pollOwnerNotice": "Hola {{name}}, parece que eres el dueño de esta encuesta.",
+  "pollsEmpty": "Ninguna encuesta creada",
+  "possibleAnswers": "Respuestas posibles",
+  "preferences": "Ajustes",
+  "previousMonth": "Mes anterior",
+  "profileLogin": "Perfil - Iniciar sesión",
+  "profileUser": "Perfil - {{username}}",
+  "requiredNameError": "El nombre es obligatorio",
+  "save": "Guardar",
+  "saveInstruction": "Selecciona tu disponibilidad y haz clic en <b>{{save}}</b>",
+  "share": "Compartir",
+  "shareDescription": "Dale este enlace a tus <b>participantes</b> para permitirles votar en tu encuesta.",
+  "shareLink": "Compartir con un enlace",
+  "specifyTimes": "Especificar tiempos",
+  "specifyTimesDescription": "Incluir horas de inicio y fin para cada opción",
+  "stepSummary": "Paso {{current}} de {{total}}",
+  "sunday": "Domingo",
+  "timeAndDate": "Fecha y hora",
+  "timeFormat": "Formato de hora:",
+  "timeZone": "Zona horaria:",
+  "title": "Título",
+  "titlePlaceholder": "Reunión mensual",
+  "today": "Hoy",
+  "unlockPoll": "Desbloquear encuesta",
+  "unverifiedMessage": "Se ha enviado un correo electrónico a <b>{{email}}</b> con un enlace para verificar la dirección de correo electrónico.",
+  "user": "Usuario",
+  "vote": "Votar",
+  "voteCount_other": "{{count}} votos",
+  "voteCount": "{{count}} voto",
+  "weekStartsOn": "La semana comienza el",
+  "weekView": "Vista semanal",
+  "whatsThis": "¿Qué es esto?",
+  "yes": "Sí",
+  "you": "Tú",
+  "yourDetails": "Tus datos",
+  "yourName": "Tu nombre…",
+  "yourPolls": "Tus encuestas"
+}

public/locales/es/common.json

@@ -0,0 +1,21 @@
+{
+  "blog": "Blog",
+  "discussions": "Discusiones",
+  "donate": "Donar",
+  "english": "Inglés",
+  "footerCredit": "Creado por <a>@imlukevella</a>",
+  "footerSponsor": "Este proyecto está financiado por los usuarios. Por favor, considera apoyarlo <a>donando</a>.",
+  "french": "Francés",
+  "german": "Alemán",
+  "home": "Inicio",
+  "italian": "Italiano",
+  "language": "Idioma",
+  "links": "Enlaces",
+  "poweredBy": "Con tecnología de",
+  "privacyPolicy": "Política de privacidad",
+  "spanish": "Español",
+  "starOnGithub": "Seguir el proyecto en GitHub",
+  "support": "Soporte",
+  "swedish": "Sueco",
+  "volunteerTranslator": "Ayuda a traducir esta página"
+}

public/locales/es/homepage.json

@@ -0,0 +1,36 @@
+{
+  "3Ls": "Sí—con 3 <e>L</e>s",
+  "adFree": "Sin anuncios",
+  "adFreeDescription": "Puedes darle un descanso a tu bloqueador de anuncios — No lo necesitarás aquí.",
+  "comments": "Comentarios",
+  "commentsDescription": "Los participantes pueden comentar en tu encuesta y los comentarios serán visibles para todos.",
+  "features": "Características",
+  "featuresSubheading": "Programar reuniones, de una manera inteligente",
+  "follow": "Seguir",
+  "getStarted": "Empezar",
+  "heroSubText": "Encuentra la fecha correcta sin dar vueltas",
+  "heroText": "Programar<br/><s>reuniones</s><br />con facilidad",
+  "links": "Enlaces",
+  "liveDemo": "Demostración en vivo",
+  "metaDescription": "Crea encuestas y vota para encontrar el mejor día o la mejor hora. Una alternativa gratuita a Doodle.",
+  "metaTitle": "Rallly - Programar reuniones",
+  "mobileFriendly": "Optimizado para dispositivos móviles",
+  "mobileFriendlyDescription": "Funciona muy bien en dispositivos móviles para que los participantes puedan responder a las encuestas dondequiera que estén.",
+  "new": "Nuevo",
+  "noLoginRequired": "No es necesario iniciar sesión",
+  "noLoginRequiredDescription": "No es necesario iniciar sesión para crear o participar en una encuesta",
+  "notifications": "Notificaciones",
+  "notificationsDescription": "Sabe quién ha respondido. Recibe notificaciones cuando los participantes voten o comenten en tu encuesta.",
+  "openSource": "Código abierto",
+  "openSourceDescription": "Ese proyecto es completamente de código abierto y <a>disponible en GitHub</a>.",
+  "participant": "Participante",
+  "participantCount_other": "{{count}} participantes",
+  "participantCount": "{{count}} participante",
+  "perfect": "¡Perfecto!",
+  "principles": "Principios",
+  "principlesSubheading": "No somos como los otros",
+  "selfHostable": "Autoalojable",
+  "selfHostableDescription": "Ejecútalo en tu propio servidor para tener el control total de tus datos",
+  "timeSlots": "Intervalos de tiempo",
+  "timeSlotsDescription": "Establece la hora de inicio y fin individual para cada opción de tu encuesta. Los tiempos se pueden ajustar automáticamente a la zona horaria de cada participante o pueden ser ajustados para ignorar completamente las zonas horarias."
+}

src/components/discussion/discussion.tsx

@@ -1,11 +1,11 @@
 import clsx from "clsx";
-import dayjs from "dayjs";
 import { AnimatePresence, motion } from "framer-motion";
 import { useTranslation } from "next-i18next";
 import { usePlausible } from "next-plausible";
 import * as React from "react";
 import { Controller, useForm } from "react-hook-form";
 
+import { useDayjs } from "../../utils/dayjs";
 import { requiredString } from "../../utils/form-validation";
 import { trpc } from "../../utils/trpc";
 import { Button } from "../button";
@@ -25,6 +25,7 @@ interface CommentForm {
 }
 
 const Discussion: React.VoidFunctionComponent = () => {
+  const { dayjs } = useDayjs();
   const queryClient = trpc.useContext();
   const { t } = useTranslation("app");
   const { poll } = usePoll();

src/components/error-page.tsx

@@ -1,5 +1,6 @@
 import Head from "next/head";
 import Link from "next/link";
+import { useTranslation } from "next-i18next";
 import * as React from "react";
 
 import { Button } from "@/components/button";
@@ -19,6 +20,7 @@ const ErrorPage: React.VoidFunctionComponent<ComponentProps> = ({
   title,
   description,
 }) => {
+  const { t } = useTranslation("errors");
   return (
     <div className="mx-auto flex h-full max-w-full items-center justify-center bg-gray-50 px-4 py-8 lg:w-[1024px]">
       <Head>
@@ -28,16 +30,16 @@ const ErrorPage: React.VoidFunctionComponent<ComponentProps> = ({
       <div className="flex items-start">
         <div className="text-center">
           <Icon className="mb-4 inline-block w-24 text-slate-400" />
-          <div className="text-primary-500 mb-2 text-3xl font-bold ">
+          <div className="mb-2 text-3xl font-bold text-primary-500 ">
             {title}
           </div>
           <p>{description}</p>
           <div className="flex justify-center space-x-3">
             <Link href="/" passHref={true}>
-              <a className="btn-default">Go to home</a>
+              <a className="btn-default">{t("goToHome")}</a>
             </Link>
             <Button icon={<Chat />} onClick={showCrispChat}>
-              Start chat
+              {t("startChat")}
             </Button>
           </div>
         </div>

src/components/forms/poll-options-form/month-calendar/month-calendar.tsx

@@ -1,16 +1,14 @@
 import clsx from "clsx";
-import dayjs from "dayjs";
 import { useTranslation } from "next-i18next";
 import { usePlausible } from "next-plausible";
 import * as React from "react";
 
-import { usePreferences } from "@/components/preferences/use-preferences";
-
 import {
   expectTimeOption,
   getDateProps,
   removeAllOptionsForDay,
 } from "../../../../utils/date-time-utils";
+import { useDayjs } from "../../../../utils/dayjs";
 import { Button } from "../../../button";
 import CompactButton from "../../../compact-button";
 import DateCard from "../../../date-card";
@@ -38,6 +36,7 @@ const MonthCalendar: React.VoidFunctionComponent<DateTimePickerProps> = ({
   duration,
   onChangeDuration,
 }) => {
+  const { dayjs, weekStartsOn } = useDayjs();
   const { t } = useTranslation("app");
   const isTimedEvent = options.some((option) => option.type === "timeSlot");
 
@@ -76,8 +75,6 @@ const MonthCalendar: React.VoidFunctionComponent<DateTimePickerProps> = ({
     );
   }, [optionsByDay]);
 
-  const { weekStartsOn } = usePreferences();
-
   const datepicker = useHeadlessDatePicker({
     selection: datepickerSelection,
     onNavigationChange: onNavigate,

src/components/forms/poll-options-form/month-calendar/time-picker.tsx

@@ -7,11 +7,11 @@ import {
 } from "@floating-ui/react-dom-interactions";
 import { Listbox } from "@headlessui/react";
 import clsx from "clsx";
-import dayjs from "dayjs";
 import * as React from "react";
 
 import { stopPropagation } from "@/utils/stop-propagation";
 
+import { useDayjs } from "../../../../utils/dayjs";
 import ChevronDown from "../../../icons/chevron-down.svg";
 import { styleMenuItem } from "../../../menu-styles";
 
@@ -28,6 +28,7 @@ const TimePicker: React.VoidFunctionComponent<TimePickerProps> = ({
   className,
   startFrom,
 }) => {
+  const { dayjs } = useDayjs();
   const { reference, floating, x, y, strategy, refs } = useFloating({
     strategy: "fixed",
     middleware: [

src/components/forms/poll-options-form/week-calendar.tsx

@@ -1,18 +1,15 @@
 import clsx from "clsx";
-import dayjs from "dayjs";
 import React from "react";
 import { Calendar } from "react-big-calendar";
 import { useMount } from "react-use";
 
 import { getDuration } from "../../../utils/date-time-utils";
-import { usePreferences } from "../../preferences/use-preferences";
+import { useDayjs } from "../../../utils/dayjs";
 import DateNavigationToolbar from "./date-navigation-toolbar";
 import dayjsLocalizer from "./dayjs-localizer";
 import { DateTimeOption, DateTimePickerProps } from "./types";
 import { formatDateWithoutTime, formatDateWithoutTz } from "./utils";
 
-const localizer = dayjsLocalizer(dayjs);
-
 const WeekCalendar: React.VoidFunctionComponent<DateTimePickerProps> = ({
   title,
   options,
@@ -23,8 +20,9 @@ const WeekCalendar: React.VoidFunctionComponent<DateTimePickerProps> = ({
   onChangeDuration,
 }) => {
   const [scrollToTime, setScrollToTime] = React.useState<Date>();
+  const { dayjs, timeFormat } = useDayjs();
+  const localizer = React.useMemo(() => dayjsLocalizer(dayjs), [dayjs]);
 
-  const { timeFormat } = usePreferences();
   useMount(() => {
     // Bit of a hack to force rbc to scroll to the right time when we close/open a modal
     setScrollToTime(dayjs(date).add(-60, "minutes").toDate());

src/components/headless-date-picker.tsx

@@ -1,6 +1,7 @@
-import dayjs from "dayjs";
 import React from "react";
 
+import { useDayjs } from "../utils/dayjs";
+
 interface DayProps {
   date: Date;
   day: string;
@@ -33,6 +34,7 @@ export const useHeadlessDatePicker = (
   selection: Date[];
   toggle: (date: Date) => void;
 } => {
+  const { dayjs } = useDayjs();
   const [localSelection, setSelection] = React.useState<Date[]>([]);
   const selection = options?.selection ?? localSelection;
   const [localNavigationDate, setNavigationDate] = React.useState(today);

src/components/home/hero.tsx

@@ -3,6 +3,7 @@ import Link from "next/link";
 import { Trans, useTranslation } from "next-i18next";
 import * as React from "react";
 
+import { DayjsProvider } from "../../utils/dayjs";
 import { UserAvatarProvider } from "../poll/user-avatar";
 import PollDemo from "./poll-demo";
 import ScribbleArrow from "./scribble-arrow.svg";
@@ -43,6 +44,7 @@ const Hero: React.VoidFunctionComponent = () => {
       </div>
       <div className="pointer-events-none mt-24 hidden h-[380px] select-none items-end justify-center md:flex lg:mt-8 lg:ml-24">
         <UserAvatarProvider seed="mock" names={names}>
+          <DayjsProvider>
             <div className="relative inline-block">
               <motion.div
                 className="absolute z-20 h-full rounded-2xl border-4 border-primary-500 bg-primary-200/10 shadow-md"
@@ -73,6 +75,7 @@ const Hero: React.VoidFunctionComponent = () => {
                 <PollDemo />
               </motion.div>
             </div>
+          </DayjsProvider>
         </UserAvatarProvider>
       </div>
     </div>

src/components/home/poll-demo.tsx

@@ -1,7 +1,7 @@
-import dayjs from "dayjs";
 import { useTranslation } from "next-i18next";
 import * as React from "react";
 
+import { useDayjs } from "../../utils/dayjs";
 import { ParticipantRowView } from "../poll/desktop-poll/participant-row";
 import { ScoreSummary } from "../poll/score-summary";
 
@@ -35,6 +35,7 @@ const options = ["2022-12-14", "2022-12-15", "2022-12-16", "2022-12-17"];
 const PollDemo: React.VoidFunctionComponent = () => {
   const { t } = useTranslation("homepage");
 
+  const { dayjs } = useDayjs();
   return (
     <div
       className="rounded-lg bg-white py-1 shadow-huge"

src/components/poll-context.tsx

@@ -12,9 +12,9 @@ import {
 } from "@/utils/date-time-utils";
 import { GetPollApiResponse } from "@/utils/trpc/types";
 
+import { useDayjs } from "../utils/dayjs";
 import ErrorPage from "./error-page";
 import { useParticipants } from "./participants-provider";
-import { usePreferences } from "./preferences/use-preferences";
 import { useSession } from "./session";
 import { useRequiredContext } from "./use-required-context";
 
@@ -88,7 +88,7 @@ export const PollContextProvider: React.VoidFunctionComponent<{
     [participants],
   );
 
-  const { timeFormat } = usePreferences();
+  const { timeFormat } = useDayjs();
 
   const contextValue = React.useMemo<PollContextValue>(() => {
     const highScore = poll.options.reduce((acc, curr) => {

src/components/poll.tsx

@@ -27,7 +27,6 @@ import VoteIcon from "./poll/vote-icon";
 import { usePoll } from "./poll-context";
 import { useSession } from "./session";
 import Sharing from "./sharing";
-import StandardLayout from "./standard-layout";
 
 const Discussion = React.lazy(() => import("@/components/discussion"));
 
@@ -120,7 +119,6 @@ const PollPage: NextPage = () => {
   );
   return (
     <UserAvatarProvider seed={poll.id} names={names}>
-      <StandardLayout>
       <div className="relative max-w-full py-4 md:px-4">
         <Head>
           <title>{poll.title}</title>
@@ -240,9 +238,7 @@ const PollPage: NextPage = () => {
                   <div className="flex items-center space-x-3">
                     <span className="inline-flex items-center space-x-1">
                       <VoteIcon type="yes" />
-                        <span className="text-xs text-slate-500">
-                          {t("yes")}
-                        </span>
+                      <span className="text-xs text-slate-500">{t("yes")}</span>
                     </span>
                     <span className="inline-flex items-center space-x-1">
                       <VoteIcon type="ifNeedBe" />
@@ -252,9 +248,7 @@ const PollPage: NextPage = () => {
                     </span>
                     <span className="inline-flex items-center space-x-1">
                       <VoteIcon type="no" />
-                        <span className="text-xs text-slate-500">
-                          {t("no")}
-                        </span>
+                      <span className="text-xs text-slate-500">{t("no")}</span>
                     </span>
                   </div>
                 </div>
@@ -265,14 +259,11 @@ const PollPage: NextPage = () => {
             </React.Suspense>
           </div>
 
-            <React.Suspense
-              fallback={<div className="p-4">{t("loading")}</div>}
-            >
+          <React.Suspense fallback={<div className="p-4">{t("loading")}</div>}>
             <Discussion />
           </React.Suspense>
         </div>
       </div>
-      </StandardLayout>
     </UserAvatarProvider>
   );
 };

src/components/poll/language-selector.tsx

@@ -1,18 +1,16 @@
 import clsx from "clsx";
 import Cookies from "js-cookie";
-import { useRouter } from "next/router";
 import { useTranslation } from "next-i18next";
 
 export const LanguageSelect: React.VoidFunctionComponent<{
   className?: string;
   onChange?: (language: string) => void;
 }> = ({ className, onChange }) => {
-  const { t } = useTranslation("common");
-  const router = useRouter();
+  const { t, i18n } = useTranslation("common");
   return (
     <select
       className={clsx("input", className)}
-      defaultValue={router.locale}
+      defaultValue={i18n.language}
       onChange={(e) => {
         Cookies.set("NEXT_LOCALE", e.target.value, {
           expires: 365,
@@ -21,6 +19,7 @@ export const LanguageSelect: React.VoidFunctionComponent<{
       }}
     >
       <option value="en">{t("english")}</option>
+      <option value="es">{t("spanish")}</option>
       <option value="fr">{t("french")}</option>
       <option value="de">{t("german")}</option>
       <option value="sv">{t("swedish")}</option>

src/components/poll/manage-poll/use-csv-exporter.ts

@@ -1,11 +1,12 @@
-import dayjs from "dayjs";
 import { useTranslation } from "next-i18next";
 
 import { usePoll } from "@/components/poll-context";
 
+import { useDayjs } from "../../../utils/dayjs";
 import { useParticipants } from "../../participants-provider";
 
 export const useCsvExporter = () => {
+  const { dayjs } = useDayjs();
   const { poll, options } = usePoll();
   const { t } = useTranslation("app");
   const { participants } = useParticipants();

src/components/poll/poll-subheader.tsx

@@ -1,7 +1,7 @@
-import dayjs from "dayjs";
 import { Trans, useTranslation } from "next-i18next";
 import * as React from "react";
 
+import { useDayjs } from "../../utils/dayjs";
 import Badge from "../badge";
 import { usePoll } from "../poll-context";
 import Tooltip from "../tooltip";
@@ -9,7 +9,7 @@ import Tooltip from "../tooltip";
 const PollSubheader: React.VoidFunctionComponent = () => {
   const { poll } = usePoll();
   const { t } = useTranslation("app");
-
+  const { dayjs } = useDayjs();
   return (
     <div className="text-slate-500/75 lg:text-lg">
       <div className="md:inline">

src/components/preferences.tsx

@@ -4,15 +4,14 @@ import { useTranslation } from "next-i18next";
 import { usePlausible } from "next-plausible";
 import React from "react";
 
+import { useDayjs } from "../utils/dayjs";
 import { LanguageSelect } from "./poll/language-selector";
-import { usePreferences } from "./preferences/use-preferences";
 
 const Preferences: React.VoidFunctionComponent = () => {
   const { t } = useTranslation(["app", "common"]);
 
   const { weekStartsOn, setWeekStartsOn, timeFormat, setTimeFormat } =
-    usePreferences();
-
+    useDayjs();
   const router = useRouter();
 
   const plausible = usePlausible();

src/components/preferences/preferences-provider.tsx

@@ -1,85 +0,0 @@
-import dayjs from "dayjs";
-import de from "dayjs/locale/de";
-import en from "dayjs/locale/en";
-import fr from "dayjs/locale/fr";
-import sv from "dayjs/locale/sv";
-import duration from "dayjs/plugin/duration";
-import isBetween from "dayjs/plugin/isBetween";
-import isSameOrBefore from "dayjs/plugin/isSameOrBefore";
-import localeData from "dayjs/plugin/localeData";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import minMax from "dayjs/plugin/minMax";
-import relativeTime from "dayjs/plugin/relativeTime";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
-import { useRouter } from "next/router";
-import * as React from "react";
-import { useLocalStorage } from "react-use";
-
-type TimeFormat = "12h" | "24h";
-type StartOfWeek = "monday" | "sunday";
-
-const dayJsLocales = {
-  de,
-  en,
-  fr,
-  sv,
-};
-
-dayjs.extend(localizedFormat);
-dayjs.extend(relativeTime);
-dayjs.extend(localeData);
-dayjs.extend(isSameOrBefore);
-dayjs.extend(isBetween);
-dayjs.extend(minMax);
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(duration);
-
-export const PreferencesContext =
-  React.createContext<{
-    weekStartsOn: StartOfWeek;
-    timeFormat: TimeFormat;
-    setWeekStartsOn: React.Dispatch<
-      React.SetStateAction<StartOfWeek | undefined>
-    >;
-    setTimeFormat: React.Dispatch<React.SetStateAction<TimeFormat | undefined>>;
-  } | null>(null);
-
-PreferencesContext.displayName = "PreferencesContext";
-
-const PreferencesProvider: React.VoidFunctionComponent<{
-  children?: React.ReactNode;
-}> = ({ children }) => {
-  const [weekStartsOn = "monday", setWeekStartsOn] =
-    useLocalStorage<StartOfWeek>("rallly-week-starts-on");
-
-  const router = useRouter();
-  const userLocale = dayJsLocales[router.locale ?? "en"];
-  const [timeFormat = "12h", setTimeFormat] =
-    useLocalStorage<TimeFormat>("rallly-time-format");
-
-  dayjs.locale({
-    ...userLocale,
-    weekStart: weekStartsOn === "monday" ? 1 : 0,
-    formats: { LT: timeFormat === "12h" ? "h:mm A" : "HH:mm" },
-  });
-
-  const contextValue = React.useMemo(
-    () => ({
-      weekStartsOn,
-      timeFormat,
-      setWeekStartsOn,
-      setTimeFormat,
-    }),
-    [setTimeFormat, setWeekStartsOn, timeFormat, weekStartsOn],
-  );
-
-  return (
-    <PreferencesContext.Provider value={contextValue}>
-      {children}
-    </PreferencesContext.Provider>
-  );
-};
-
-export default PreferencesProvider;

src/components/preferences/use-preferences.tsx

@@ -1,6 +0,0 @@
-import { useRequiredContext } from "../use-required-context";
-import { PreferencesContext } from "./preferences-provider";
-
-export const usePreferences = () => {
-  return useRequiredContext(PreferencesContext);
-};

src/components/profile.tsx

@@ -1,4 +1,3 @@
-import dayjs from "dayjs";
 import Head from "next/head";
 import Link from "next/link";
 import { useTranslation } from "next-i18next";
@@ -8,6 +7,7 @@ import Calendar from "@/components/icons/calendar.svg";
 import Pencil from "@/components/icons/pencil.svg";
 import User from "@/components/icons/user.svg";
 
+import { useDayjs } from "../utils/dayjs";
 import { trpc } from "../utils/trpc";
 import { EmptyState } from "./empty-state";
 import LoginForm from "./login-form";
@@ -16,6 +16,7 @@ import { useSession } from "./session";
 
 export const Profile: React.VoidFunctionComponent = () => {
   const { user } = useSession();
+  const { dayjs } = useDayjs();
 
   const { t } = useTranslation("app");
   const { data: userPolls } = trpc.useQuery(["user.getPolls"]);

src/components/standard-layout.tsx

@@ -9,6 +9,7 @@ import User from "@/components/icons/user.svg";
 import UserCircle from "@/components/icons/user-circle.svg";
 import Logo from "~/public/logo.svg";
 
+import { DayjsProvider } from "../utils/dayjs";
 import Dropdown, { DropdownItem, DropdownProps } from "./dropdown";
 import Adjustments from "./icons/adjustments.svg";
 import Cash from "./icons/cash.svg";
@@ -23,7 +24,7 @@ import Support from "./icons/support.svg";
 import Twitter from "./icons/twitter.svg";
 import LoginForm from "./login-form";
 import { useModal } from "./modal";
-import { useModalContext } from "./modal/modal-provider";
+import ModalProvider, { useModalContext } from "./modal/modal-provider";
 import Popover from "./popover";
 import Preferences from "./preferences";
 import { useSession } from "./session";
@@ -244,6 +245,8 @@ const StandardLayout: React.VoidFunctionComponent<{
   });
 
   return (
+    <ModalProvider>
+      <DayjsProvider>
         <div
           className="relative flex min-h-full flex-col bg-gray-50 lg:flex-row"
           {...rest}
@@ -276,7 +279,9 @@ const StandardLayout: React.VoidFunctionComponent<{
                   trigger={
                     <button className="group flex w-full items-center space-x-3 whitespace-nowrap rounded-md px-3 py-1 font-medium text-slate-600 transition-colors hover:bg-slate-500/10 hover:text-slate-600 hover:no-underline active:bg-slate-500/20">
                       <Adjustments className="h-5 opacity-75 group-hover:text-primary-500 group-hover:opacity-100" />
-                  <span className="grow text-left">{t("app:preferences")}</span>
+                      <span className="grow text-left">
+                        {t("app:preferences")}
+                      </span>
                       <DotsVertical className="h-4 text-slate-500 opacity-0 transition-opacity group-hover:opacity-100" />
                     </button>
                   }
@@ -303,7 +308,11 @@ const StandardLayout: React.VoidFunctionComponent<{
                       <motion.button
                         initial={{ x: -20, opacity: 0 }}
                         animate={{ x: 0, opacity: 1 }}
-                    exit={{ x: -20, opacity: 0, transition: { duration: 0.2 } }}
+                        exit={{
+                          x: -20,
+                          opacity: 0,
+                          transition: { duration: 0.2 },
+                        }}
                         className="group w-full rounded-lg p-2 px-3 text-left text-inherit transition-colors hover:bg-slate-500/10 active:bg-slate-500/20"
                       >
                         <div className="flex w-full items-center space-x-3">
@@ -392,6 +401,8 @@ const StandardLayout: React.VoidFunctionComponent<{
             </div>
           </div>
         </div>
+      </DayjsProvider>
+    </ModalProvider>
   );
 };
 

src/middleware.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from "next/server";
 
-const supportedLocales = ["en", "de", "fr", "sv"];
+const supportedLocales = ["en", "es", "de", "fr", "sv"];
 
 export function middleware({ headers, cookies, nextUrl }: NextRequest) {
   const locale =

src/pages/404.tsx

@@ -1,16 +1,28 @@
+import { GetStaticProps, NextPage } from "next";
+import { useTranslation } from "next-i18next";
+import { serverSideTranslations } from "next-i18next/serverSideTranslations";
 import React from "react";
 
 import ErrorPage from "@/components/error-page";
 import DocumentSearch from "@/components/icons/document-search.svg";
 
-const Custom404: React.VoidFunctionComponent = () => {
+const Custom404: NextPage = () => {
+  const { t } = useTranslation("errors");
   return (
     <ErrorPage
       icon={DocumentSearch}
-      title="404 not found"
-      description="We couldn't find the page you're looking for."
+      title={t("notFoundTitle")}
+      description={t("notFoundDescription")}
     />
   );
 };
 
+export const getStaticProps: GetStaticProps = async ({ locale = "en" }) => {
+  return {
+    props: {
+      ...(await serverSideTranslations(locale, ["errors"])),
+    },
+  };
+};
+
 export default Custom404;

src/pages/_app.tsx

@@ -14,8 +14,6 @@ import { MutationCache } from "react-query";
 import superjson from "superjson";
 
 import Maintenance from "@/components/maintenance";
-import ModalProvider from "@/components/modal/modal-provider";
-import PreferencesProvider from "@/components/preferences/preferences-provider";
 
 import { AppRouter } from "./api/trpc/[trpc]";
 
@@ -35,16 +33,12 @@ const MyApp: NextPage<AppProps> = ({ Component, pageProps }) => {
       selfHosted={true}
       enabled={!!process.env.PLAUSIBLE_DOMAIN}
     >
-      <PreferencesProvider>
       <Head>
         <meta name="viewport" content="width=device-width, initial-scale=1" />
       </Head>
       <CrispChat />
       <Toaster />
-        <ModalProvider>
       <Component {...pageProps} />
-        </ModalProvider>
-      </PreferencesProvider>
     </PlausibleProvider>
   );
 };

src/pages/poll.tsx

@@ -9,6 +9,7 @@ import { PollContextProvider } from "@/components/poll-context";
 import { withSession } from "@/components/session";
 
 import { ParticipantsProvider } from "../components/participants-provider";
+import StandardLayout from "../components/standard-layout";
 import { withSessionSsr } from "../utils/auth";
 import { trpc } from "../utils/trpc";
 import { withPageTranslations } from "../utils/with-page-translations";
@@ -34,11 +35,13 @@ const PollPageLoader: NextPage = () => {
 
   if (poll) {
     return (
+      <StandardLayout>
         <ParticipantsProvider pollId={poll.id}>
           <PollContextProvider poll={poll} urlId={urlId} admin={admin}>
             <PollPage />
           </PollContextProvider>
         </ParticipantsProvider>
+      </StandardLayout>
     );
   }
 
@@ -50,7 +53,7 @@ const PollPageLoader: NextPage = () => {
 };
 
 export const getServerSideProps: GetServerSideProps = withSessionSsr(
-  withPageTranslations(["common", "app"]),
+  withPageTranslations(["common", "app", "errors"]),
 );
 
 export default withSession(PollPageLoader);

src/utils/dayjs.tsx

@@ -0,0 +1,123 @@
+import dayjs from "dayjs";
+import duration from "dayjs/plugin/duration";
+import isBetween from "dayjs/plugin/isBetween";
+import isSameOrBefore from "dayjs/plugin/isSameOrBefore";
+import localeData from "dayjs/plugin/localeData";
+import localizedFormat from "dayjs/plugin/localizedFormat";
+import minMax from "dayjs/plugin/minMax";
+import relativeTime from "dayjs/plugin/relativeTime";
+import timezone from "dayjs/plugin/timezone";
+import utc from "dayjs/plugin/utc";
+import { useTranslation } from "next-i18next";
+import * as React from "react";
+import { useAsync, useLocalStorage } from "react-use";
+
+import { useRequiredContext } from "../components/use-required-context";
+
+export type TimeFormat = "12h" | "24h";
+export type StartOfWeek = "monday" | "sunday";
+
+const dayjsLocales: Record<
+  string,
+  {
+    weekStartsOn: StartOfWeek;
+    timeFormat: TimeFormat;
+    import: () => Promise<ILocale>;
+  }
+> = {
+  en: {
+    weekStartsOn: "monday",
+    timeFormat: "12h",
+    import: () => import("dayjs/locale/en"),
+  },
+  es: {
+    weekStartsOn: "monday",
+    timeFormat: "24h",
+    import: () => import("dayjs/locale/es"),
+  },
+  de: {
+    weekStartsOn: "monday",
+    timeFormat: "24h",
+    import: () => import("dayjs/locale/de"),
+  },
+  fr: {
+    weekStartsOn: "monday",
+    timeFormat: "24h",
+    import: () => import("dayjs/locale/fr"),
+  },
+  sv: {
+    weekStartsOn: "monday",
+    timeFormat: "24h",
+    import: () => import("dayjs/locale/sv"),
+  },
+};
+
+dayjs.extend(localizedFormat);
+dayjs.extend(relativeTime);
+dayjs.extend(localeData);
+dayjs.extend(isSameOrBefore);
+dayjs.extend(isBetween);
+dayjs.extend(minMax);
+dayjs.extend(utc);
+dayjs.extend(timezone);
+dayjs.extend(duration);
+
+const DayjsContext =
+  React.createContext<{
+    dayjs: (date?: dayjs.ConfigType) => dayjs.Dayjs;
+    weekStartsOn: StartOfWeek;
+    timeFormat: TimeFormat;
+    setWeekStartsOn: React.Dispatch<
+      React.SetStateAction<StartOfWeek | undefined>
+    >;
+    setTimeFormat: React.Dispatch<React.SetStateAction<TimeFormat | undefined>>;
+  } | null>(null);
+
+export const useDayjs = () => {
+  return useRequiredContext(DayjsContext);
+};
+
+export const DayjsProvider: React.VoidFunctionComponent<{
+  children?: React.ReactNode;
+}> = ({ children }) => {
+  const { i18n } = useTranslation();
+
+  // Using language instead of router.locale because when transitioning from homepage to
+  // the app via <Link locale={false}> it will be set to "en" instead of the current locale.
+  const locale = i18n.language;
+
+  const [weekStartsOn = dayjsLocales[locale].weekStartsOn, , setWeekStartsOn] =
+    useLocalStorage<StartOfWeek>("rallly-week-starts-on");
+
+  const [timeFormat = dayjsLocales[locale].timeFormat, setTimeFormat] =
+    useLocalStorage<TimeFormat>("rallly-time-format");
+
+  const { value: dayjsLocale } = useAsync(async () => {
+    return await dayjsLocales[locale ?? "en"].import();
+  }, [locale]);
+
+  if (dayjsLocale) {
+    dayjs.locale({
+      ...dayjsLocale,
+      weekStart: weekStartsOn ? (weekStartsOn === "monday" ? 1 : 0) : undefined,
+      formats: {
+        ...dayjsLocale.formats,
+        LT: timeFormat === "12h" ? "h:mm A" : "H:mm",
+      },
+    });
+  }
+
+  return (
+    <DayjsContext.Provider
+      value={{
+        dayjs,
+        weekStartsOn: weekStartsOn ?? dayjsLocales[locale].weekStartsOn,
+        timeFormat: timeFormat ?? dayjsLocales[locale].timeFormat,
+        setWeekStartsOn,
+        setTimeFormat,
+      }}
+    >
+      {children}
+    </DayjsContext.Provider>
+  );
+};