eiru_purchases/src/store/modules/currency.js

const state = {
    currencies: {
        default: [],
        values: this.default
    },
    loadingCurrencies: {
        default: false,
        value: true
    }
}

const getters = {
    /**
     * 
     * @param {*} state 
     */
    currencies(state) {
        return state.currencies.values
    },
    /**
     * 
     * @param {*} state 
     */
    loadingCurrencies(state) {
        return state.loadingCurrencies.value
    }
}

const mutations = {
    /**
     * 
     * @param {*} state 
     * @param {*} payload 
     */
    setCurrencies(state, payload) {
        state.currencies.values = [...payload]
    },
    /**
     * 
     * @param {*} state 
     * @param {*} payload 
     */
    setLoadingCurrencies(state, payload) {
        state.loadingCurrencies.value = !!payload
    }
}

const actions = {
    /**
     * 
     * @param {*} param0 
     * @param {*} payload 
     */
    initCurrencies({ commit }, payload) {
        commit('setCurrencies', payload)
        commit('setLoadingCurrencies', false)
    },
    /**
     * 
     * @param {*} param0 
     */
    setCurrencies({ commit }, payload) {
        commit('setCurrencies', payload)
    }
}

export default {
    state,
    getters,
    mutations,
    actions
}