serverless-invoices/src/store/language.js

import app from '../main';

export default {
    namespaced: true,
    state: {
        lang: null,
        all: [
            { name: 'English', code: 'en' },
            { name: 'French', code: 'fr' },
            { name: 'Estonian', code: 'et' },
            { name: 'Persian', code: 'fa' },
            { name: 'Spanish', code: 'es' },
            { name: 'Bangla', code: 'bn' },
        ],
    },
    mutations: {
        lang(state, lang) {
            state.lang = lang;
        },
    },
    actions: {
        changeLanguage({ commit }, lang) {
            app.$i18n.i18next.changeLanguage(lang.code);
            app.$router.push({ query: {...app.$route.query, lang: lang.code } });
            commit('lang', lang);
        },
        initLanguage({ commit, state }, code) {
            commit('lang', state.all.find(lang => lang.code === code));
        },
    },
};