eiru_pos/src/store/modules/customers.js

const state = {
    customers: [],
    filtered: [],
    selectedCustomer: null,
    addCustomer: false
}

const getters = {
    customers(state) {
        return state.filtered.length === 0 ? state.customers : state.filtered
    },
    hasSelectedCustomer(state) {
        return !!state.selectedCustomer
    },
    selectedCustomer(state) {
        return state.selectedCustomer
    },
    addCustomer(state) {
        return state.addCustomer
    }
}

const mutations = {
    pushCustomers(state, payload) {
        state.customers = [...payload, ...state.customers]
    },
    selectCustomer(state, payload) {
        state.selectedCustomer = payload.customer
    },
    applyCustomersFilter(state, payload) {
        state.filtered = payload
    },
    addCustomer(state) {
        state.addCustomer = !state.addCustomer
    }
}

const actions = {
    fetchCustomers({ commit, dispatch }) {
        return new Promise((resolve, reject) => {
            let ResPartner = new openerp.web.Model('res.partner')

            ResPartner.call('get_customers', {
                context: new openerp.web.CompoundContext()
            }).then(response => {
                commit('pushCustomers', response)

                dispatch('loaded', 'customers')

                resolve()
            }).fail(error => {
                console.log(error)
                reject(error)
            })
        })
    },
    selectCustomer({ commit }, payload) {
        commit('selectCustomer', {
            customer: payload
        })
    },
    filterCustomers({ commit }, payload) {
        commit('applyCustomersFilter', payload)
    },
    addCustomer({ commit })  {
        commit('addCustomer')
    },
    saveCustomer({ commit, dispatch }, payload) {
        if (payload) {
            if (!payload.name || !payload.ruc || !payload.phone) {
                dispatch('notify', 'Complete los datos para guardar')
                return
            }
            
            let ResPartner = new openerp.web.Model('res.partner')
            ResPartner.call('create_from_pos', [
                payload
            ], { 
                context: new openerp.web.CompoundContext()
            }).then(id => {
                commit('pushCustomers', [{
                    id,
                    ...payload
                }])
            })
        }

        commit('addCustomer')
    }
}

export default {
    state,
    getters,
    mutations,
    actions
}