lamassu-server/lib/loyalty.js
2021-09-07 17:26:36 +01:00

98 lines
2.8 KiB
JavaScript

const db = require('./db')
const uuid = require('uuid')
const _ = require('lodash/fp')
const pgp = require('pg-promise')()
function getAvailablePromoCodes () {
const sql = `SELECT * FROM coupons WHERE soft_deleted=false`
return db.any(sql)
}
function getPromoCode (code) {
const sql = `SELECT * FROM coupons WHERE code=$1 AND soft_deleted=false`
return db.oneOrNone(sql, [code])
}
function createPromoCode (code, discount) {
const sql = `INSERT INTO coupons (id, code, discount) VALUES ($1, $2, $3) RETURNING *`
return db.one(sql, [uuid.v4(), code, discount])
}
function deletePromoCode (id) {
const sql = `UPDATE coupons SET soft_deleted=true WHERE id=$1`
return db.none(sql, [id])
}
function getNumberOfAvailablePromoCodes () {
const sql = `SELECT COUNT(id) FROM coupons WHERE soft_deleted=false`
return db.one(sql).then(res => res.count)
}
function getAvailableIndividualDiscounts () {
const sql = `SELECT * from individual_discounts WHERE soft_deleted=false`
return db.any(sql).then(res => _.map(it => ({
id: it.id,
idType: _.camelCase(it.identification),
value: it.value,
discount: it.discount
}), res))
}
function createIndividualDiscount (idType, value, discount) {
const idTypes = {
phone: 'phone',
idNumber: 'id_number'
}
const sql = `INSERT INTO individual_discounts (id, identification, value, discount) VALUES ($1, $2, $3, $4)`
return db.none(sql, [uuid.v4(), idTypes[idType], value, discount])
}
function deleteIndividualDiscount (id) {
const sql = `UPDATE individual_discounts SET soft_deleted=true WHERE id=$1`
return db.none(sql, [id])
}
function getCustomersWithDiscounts (discounts) {
let phoneNumbers = []
let idCardNumbers = []
_.each(it => {
switch (it.idType) {
case 'phone':
phoneNumbers.push(it.value)
break
case 'idNumber':
idCardNumbers.push(it.value)
break
default:
break
}
}, discounts)
if (_.isEmpty(phoneNumbers) && _.isEmpty(idCardNumbers)) {
return Promise.resolve([])
}
const phoneNumbersSql = _.map(pgp.as.text, phoneNumbers).join(',')
const idCardNumbersSql = _.map(pgp.as.text, idCardNumbers).join(',')
const hasPhoneNumbers = !_.isEmpty(phoneNumbers)
const hasIDNumbers = !_.isEmpty(idCardNumbers)
const sql = `SELECT * FROM customers WHERE ${hasPhoneNumbers ? `phone IN ($1^)` : ``} ${hasPhoneNumbers && hasIDNumbers ? `OR` : ``} ${hasIDNumbers ? `id_card_data_number IN ($2^)` : ``}`
return db.any(sql, [phoneNumbersSql, idCardNumbersSql])
.then(res => _.map(it => it ? _.mapKeys(_.camelCase, it) : null, res))
}
module.exports = {
getAvailablePromoCodes,
getPromoCode,
createPromoCode,
deletePromoCode,
getNumberOfAvailablePromoCodes,
getAvailableIndividualDiscounts,
createIndividualDiscount,
deleteIndividualDiscount,
getCustomersWithDiscounts
}