From 2cb4359ffd784b1be16fa52b8f135978db377629 Mon Sep 17 00:00:00 2001
From: lesion <lesion@autistici.org>
Date: Wed, 12 Oct 2022 12:45:09 +0200
Subject: [PATCH] move to nuxt-i18n, switch language,address #171

---
 components/Calendar.vue       |  6 +++++-
 components/Nav.vue            | 18 ++++++++++++++++--
 components/admin/Settings.vue |  2 +-
 locales/en.json               |  3 ++-
 locales/esm.js                | 13 -------------
 locales/index.js              | 12 ++++++------
 locales/it.json               |  3 ++-
 nuxt.config.js                | 20 +++++++++++++++++++-
 package.json                  |  2 +-
 plugins/filters.js            | 13 ++++++-------
 server/helpers.js             |  7 -------
 server/routes.js              |  4 +---
 store/index.js                |  4 ----
 13 files changed, 59 insertions(+), 48 deletions(-)
 delete mode 100644 locales/esm.js

diff --git a/components/Calendar.vue b/components/Calendar.vue
index 6b15fa4c..1f7a42a2 100644
--- a/components/Calendar.vue
+++ b/components/Calendar.vue
@@ -41,7 +41,11 @@ export default {
   },
   methods: {
     updatePage (page) {
-      this.$emit('monthchange', page)
+      if (page.month !== this.page.month || page.year !== this.page.year) {
+        this.$emit('monthchange', page)
+        this.page.month = page.month
+        this.page.year = page.year
+      }
     },
     click (day) {
       this.$emit('dayclick', day)
diff --git a/components/Nav.vue b/components/Nav.vue
index f3ec571c..63765c0e 100644
--- a/components/Nav.vue
+++ b/components/Nav.vue
@@ -21,7 +21,7 @@ v-app-bar(app aria-label='Menu' height=64)
     v-icon(v-text='mdiLogin')
 
   client-only
-    v-menu(v-if='loggedIn' offset-y eager)
+    v-menu(v-if='loggedIn' offset-y transition="slide-y-transition")
       template(v-slot:activator="{ on, attrs }")
         v-btn(icon v-bind='attrs' v-on='on' title='Menu' aria-label='Menu')
           v-icon(v-text='mdiDotsVertical')
@@ -47,12 +47,26 @@ v-app-bar(app aria-label='Menu' height=64)
       v-btn(v-if='loggedIn' icon aria-label='Menu' title='Menu')
         v-icon(v-text='mdiDotsVertical')
 
+  client-only
+    v-menu(offset-y transition="slide-y-transition" min-width='200px' max-height='400px')
+      template(v-slot:activator="{ on, attrs }")
+        v-btn(icon v-bind='attrs' v-on='on' aria-label='Language') {{$i18n.locale}}
+      v-list
+        v-list-item(v-for='locale in $i18n.locales' @click.prevent.stop="$i18n.setLocale(locale.code)" :key='locale.code')
+          v-list-item-content
+            v-list-item-title {{locale.name}}
+        v-list-item(nuxt target='_blank' href='https://hosted.weblate.org/engage/gancio/')
+          v-list-item-content
+            v-list-item-subtitle(v-text='$t("common.help_translate")')
+    template(#placeholder)
+      v-btn(icon aria-label='Language') {{$i18n.locale}}
 
   v-btn(icon target='_blank' :href='`${settings.baseurl}/feed/rss`' title='RSS' aria-label='RSS')
     v-icon(color='orange' v-text='mdiRss')
 
 </template>
 <script>
+const locales = require('../locales/index')
 import { mapState } from 'vuex'
 import clipboard from '../assets/clipboard'
 import { mdiPlus, mdiShareVariant, mdiLogin, mdiDotsVertical, mdiLogout, mdiAccount, mdiCog, mdiRss } from '@mdi/js'
@@ -61,7 +75,7 @@ import { mdiPlus, mdiShareVariant, mdiLogin, mdiDotsVertical, mdiLogout, mdiAcco
 export default {
   name: 'Nav',
   data () {
-    return { mdiPlus, mdiShareVariant, mdiLogout, mdiLogin, mdiDotsVertical, mdiAccount, mdiCog, mdiRss }
+    return { mdiPlus, mdiShareVariant, mdiLogout, mdiLogin, mdiDotsVertical, mdiAccount, mdiCog, mdiRss, locales }
   },
   mixins: [clipboard],
   computed: {
diff --git a/components/admin/Settings.vue b/components/admin/Settings.vue
index 32bd7757..f9ea5be5 100644
--- a/components/admin/Settings.vue
+++ b/components/admin/Settings.vue
@@ -63,8 +63,8 @@ import SMTP from './SMTP.vue'
 import { mapActions, mapState } from 'vuex'
 import moment from 'dayjs'
 import tzNames from './tz.json'
-import locales from '../../locales/esm'
 import { mdiAlert, mdiArrowRight } from '@mdi/js'
+const locales = require('../../locales/index')
 
 export default {
   props: {
diff --git a/locales/en.json b/locales/en.json
index 5e5b54b2..d233e1b4 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -89,7 +89,8 @@
     "label": "Label",
     "collections": "Collections",
     "close": "Close",
-    "plugins": "Plugins"
+    "plugins": "Plugins",
+    "help_translate": "Help Translate"
   },
   "login": {
     "description": "By logging in you can publish new events.",
diff --git a/locales/esm.js b/locales/esm.js
deleted file mode 100644
index 59762610..00000000
--- a/locales/esm.js
+++ /dev/null
@@ -1,13 +0,0 @@
-export default {
-  ca: 'Català',
-  de: 'Deutsch',
-  en: 'English',
-  es: 'Español',
-  eu: 'Euskara',
-  fr: 'Francais',
-  gl: 'Galego',
-  it: 'Italiano',
-  nb: 'Norwegian Bokmål',
-  pl: 'Polski',
-  sk: 'Slovak'
-}
diff --git a/locales/index.js b/locales/index.js
index 1af61059..5a0e0c81 100644
--- a/locales/index.js
+++ b/locales/index.js
@@ -1,13 +1,13 @@
 module.exports = {
-  en: 'English',
-  eu: 'Euskara',
+  ca: 'Català',
   de: 'Deutsch',
+  en: 'English',
   es: 'Español',
+  eu: 'Euskara',
+  fr: 'Francais',
   gl: 'Galego',
   it: 'Italiano',
-  ca: 'Català',
-  fr: 'Francais',
   nb: 'Norwegian Bokmål',
-  sk: 'Slovak',
-  pl: 'Polski'
+  pl: 'Polski',
+  sk: 'Slovak'
 }
diff --git a/locales/it.json b/locales/it.json
index 53c5a401..74264750 100644
--- a/locales/it.json
+++ b/locales/it.json
@@ -87,7 +87,8 @@
         "import": "Importa",
         "max_events": "N. massimo eventi",
         "label": "Etichetta",
-        "collections": "Bolle"
+        "collections": "Bolle",
+        "help_translate": "Aiuta a tradurre"
     },
     "login": {
         "description": "Entrando puoi pubblicare nuovi eventi.",
diff --git a/nuxt.config.js b/nuxt.config.js
index a9bdb054..5561fcd8 100644
--- a/nuxt.config.js
+++ b/nuxt.config.js
@@ -1,5 +1,6 @@
 const config = require('./server/config.js')
 const minifyTheme = require('minify-css-string').default
+const locales = require('./locales/index')
 
 const isDev = (process.env.NODE_ENV !== 'production')
 module.exports = {
@@ -35,7 +36,6 @@ module.exports = {
    ** Plugins to load before mounting the App
    */
   plugins: [
-    '@/plugins/i18n.js',
     '@/plugins/filters', // text filters, datetime filters, generic transformation helpers etc.
     '@/plugins/axios', // axios baseurl configuration
     '@/plugins/validators', // inject validators
@@ -48,6 +48,7 @@ module.exports = {
    */
   modules: [
     // Doc: https://axios.nuxtjs.org/usage
+    'nuxt-i18n',
     '@nuxtjs/axios',
     '@nuxtjs/auth',
     '@nuxtjs/sitemap'
@@ -76,6 +77,23 @@ module.exports = {
       }
     }
   },
+  i18n: {
+    locales: Object.keys(locales).map(key => ({
+      code: key,
+      name: locales[key],
+      file: `${key}.json`,
+      iso: key
+    })),
+    vueI18n: {
+      fallbackLocale: 'en'
+    },    
+    langDir: 'locales',
+    lazy: true,
+    strategy: 'no_prefix',
+    baseUrl: config.baseurl,
+    skipSettingLocaleOnNavigate: true,
+    skipNuxtState: true
+  },
 
   serverMiddleware: ['server/routes'],
 
diff --git a/package.json b/package.json
index ea0a27dd..c4632719 100644
--- a/package.json
+++ b/package.json
@@ -64,6 +64,7 @@
     "multer": "^1.4.5-lts.1",
     "mysql2": "^2.3.3",
     "nuxt-edge": "2.16.0-27720022.54e852f",
+    "nuxt-i18n": "^6.28.1",
     "pg": "^8.8.0",
     "sequelize": "^6.23.0",
     "sequelize-slugify": "^1.6.2",
@@ -74,7 +75,6 @@
     "tiptap-extensions": "^1.35.0",
     "umzug": "^2.3.0",
     "v-calendar": "^2.4.1",
-    "vue-i18n": "^8.26.7",
     "vuetify": "2.6.10",
     "winston": "^3.8.2",
     "winston-daily-rotate-file": "^4.7.1",
diff --git a/plugins/filters.js b/plugins/filters.js
index 9a5329ba..ac6e3051 100644
--- a/plugins/filters.js
+++ b/plugins/filters.js
@@ -26,21 +26,21 @@ export default ({ app, store }) => {
   // set timezone to instance_timezone!!
   // to show local time relative to event's place
   // not where in the world I'm looking at the page from
+  app.i18n.defaultLocale = store.state.settings.instance_locale
   const instance_timezone = store.state.settings.instance_timezone
-  const locale = store.state.locale
   dayjs.tz.setDefault(instance_timezone)
-  dayjs.locale(locale)
+  dayjs.locale(app.i18n.locale || store.state.settings.instance_locale)
 
   // replace links with anchors
   // TODO: remove fb tracking id?
   Vue.filter('linkify', value => value.replace(/(https?:\/\/([^\s]+))/g, '<a href="$1">$2</a>'))
   Vue.filter('url2host', url => url.match(/^https?:\/\/(.[^/:]+)/i)[1])
-  Vue.filter('datetime', value => dayjs.tz(value).locale(locale).format('ddd, D MMMM HH:mm'))
+  Vue.filter('datetime', value => dayjs.tz(value).locale(app.i18n.locale || store.state.settings.instance_locale).format('ddd, D MMMM HH:mm'))
   Vue.filter('dateFormat', (value, format) => dayjs.tz(value).format(format))
   Vue.filter('unixFormat', (timestamp, format) => dayjs.unix(timestamp).tz().format(format))
 
   // shown in mobile homepage
-  Vue.filter('day', value => dayjs.unix(value).tz().locale(store.state.locale).format('dddd, D MMM'))
+  Vue.filter('day', value => dayjs.unix(value).tz().locale(app.i18n.locale || store.state.settings.instance_locale).format('dddd, D MMM'))
   Vue.filter('mediaURL', (event, type, format = '.jpg') => {
     const mediaPath = type === 'download' ? '/download/' : '/media/'
     if (event.media && event.media.length) {
@@ -76,9 +76,8 @@ export default ({ app, store }) => {
   })
 
   Vue.filter('when', (event) => {
-    const start = dayjs.unix(event.start_datetime).tz()
-    const end = dayjs.unix(event.end_datetime).tz()
-
+    const start = dayjs.unix(event.start_datetime).tz().locale(app.i18n.locale || store.state.settings.instance_locale)
+    const end = dayjs.unix(event.end_datetime).tz().locale(app.i18n.locale || store.state.settings.instance_locale)
     // multidate
     if (event.multidate) {
       return `${start.format('dddd D MMMM HH:mm')} - ${end.format('dddd D MMMM HH:mm')}`
diff --git a/server/helpers.js b/server/helpers.js
index 1c15f612..113c92ee 100644
--- a/server/helpers.js
+++ b/server/helpers.js
@@ -63,13 +63,6 @@ module.exports = {
     })
   },
 
-  async setUserLocale(req, res, next) {
-    // select locale based on cookie? and accept-language header
-    acceptLanguage.languages(Object.keys(locales))
-    res.locals.acceptedLocale = acceptLanguage.get(req.headers['accept-language'])
-    dayjs.locale(res.locals.acceptedLocale)
-    next()
-  },
 
   async initSettings(_req, res, next) {
     // initialize settings
diff --git a/server/routes.js b/server/routes.js
index 0c0bf5d7..bf4dba86 100644
--- a/server/routes.js
+++ b/server/routes.js
@@ -5,7 +5,6 @@ const initialize = require('./initialize.server')
 
 const config = require('./config')
 const helpers = require('./helpers')
-app.use(helpers.setUserLocale)
 app.use(helpers.initSettings)
 app.use(helpers.logRequest)
 app.use(helpers.serveStatic())
@@ -73,10 +72,9 @@ async function main () {
 
   // remaining request goes to nuxt
   // first nuxt component is ./pages/index.vue (with ./layouts/default.vue)
-  // prefill current events, tags, places and announcements (used in every path)
   app.use(async (_req, res, next) => {
     if (config.status === 'READY') {
-
+      // TODO: fetch into layout!
       const announceController = require('./api/controller/announce')
       res.locals.announcements = await announceController._getVisible()
     }
diff --git a/store/index.js b/store/index.js
index c8b75b4d..8ab03839 100644
--- a/store/index.js
+++ b/store/index.js
@@ -1,5 +1,4 @@
 export const state = () => ({
-  locale: '',
   user_locale: {},
   settings: {
     instance_timezone: 'Europe/Rome',
@@ -25,9 +24,6 @@ export const mutations = {
   setSetting (state, setting) {
     state.settings[setting.key] = setting.value
   },
-  setLocale (state, locale) {
-    state.locale = locale
-  },
   setUserlocale (state, messages) {
     state.user_locale = messages
   },