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feat: add option to configure usage limit (per customer) for kit disc…
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…ounts
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@leomp12
leomp12 committed Nov 9, 2023
1 parent f54c74b commit f184e6e
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Showing 2 changed files with 90 additions and 68 deletions.
7 changes: 7 additions & 0 deletions assets/application.json
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Original file line number Diff line number Diff line change
Expand Up @@ -282,6 +282,13 @@
"title": "ID do cliente"
}
},
"usage_limit": {
"type": "integer",
"minimum": 1,
"maximum": 1000,
"title": "Limite de uso por cliente",
"description": "Limite opcional da promoção por kit a cada cliente (necessário preencher o rótulo da promoção)"
},
"discount": {
"title": "Desconto predefinido",
"type": "object",
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151 changes: 83 additions & 68 deletions routes/ecom/modules/apply-discount.js
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ const {
} = require('./../../../lib/helpers')

module.exports = appSdk => {
return (req, res) => {
return async (req, res) => {
const { storeId } = req
// body was already pre-validated on @/bin/web.js
// treat module request body
Expand All @@ -36,6 +36,49 @@ module.exports = appSdk => {
res.send(response)
}

const checkUsageLimit = async (discountRule, label) => {
const { customer } = params
if (!label) {
label = discountRule.label
}
if (
label &&
customer && (customer._id || customer.doc_number) &&
(discountRule.usage_limit > 0 || discountRule.total_usage_limit > 0)
) {
// list orders to check discount usage limits
const url = '/orders.json?fields=status' +
`&extra_discount.app.label${(discountRule.case_insensitive ? '%=' : '=')}` +
encodeURIComponent(label)
const usageLimits = [{
// limit by customer
query: customer.doc_number
? `&buyers.doc_number=${customer.doc_number}`
: `&buyers._id=${customer._id}`,
max: discountRule.usage_limit
}, {
// total limit
query: '',
max: discountRule.total_usage_limit
}]
for (let i = 0; i < usageLimits.length; i++) {
const { query, max } = usageLimits[i]
if (max) {
// send Store API request to list orders with filters
const { response } = await appSdk.apiRequest(storeId, `${url}${query}`)
const countOrders = response.data.result
.filter(({ status }) => status !== 'cancelled')
.length
if (countOrders >= max) {
// limit reached
return false
}
}
}
}
return true
}

const getDiscountValue = (discount, maxDiscount) => {
let value
if (typeof maxDiscount !== 'number') {
Expand Down Expand Up @@ -230,7 +273,8 @@ module.exports = appSdk => {
// check buy together recommendations
const buyTogether = []

kitDiscounts.forEach((kitDiscount, index) => {
for (let index = 0; index < kitDiscounts.length; index++) {
const kitDiscount = kitDiscounts[index]
if (kitDiscount) {
const productIds = Array.isArray(kitDiscount.product_ids)
? kitDiscount.product_ids
Expand Down Expand Up @@ -348,23 +392,34 @@ module.exports = appSdk => {
}
}
}
// apply cumulative discount \o/
if (kitDiscount.same_product_quantity) {
kitItems.forEach((item, i) => {
addDiscount(
discount,
`KIT-${(index + 1)}-${i}`,
kitDiscount.label,
ecomUtils.price(item) * (item.quantity || 1)
)

try {
const isAvailable = await checkUsageLimit(kitDiscount)
if (isAvailable) {
// apply cumulative discount \o/
if (kitDiscount.same_product_quantity) {
kitItems.forEach((item, i) => {
addDiscount(
discount,
`KIT-${(index + 1)}-${i}`,
kitDiscount.label,
ecomUtils.price(item) * (item.quantity || 1)
)
})
} else {
addDiscount(discount, `KIT-${(index + 1)}`, kitDiscount.label)
}
discountedItemIds = discountedItemIds.concat(kitItems.map(item => item.product_id))
}
} catch (err) {
return res.status(409).send({
error: 'CANT_CHECK_USAGE_LIMITS',
message: err.message
})
} else {
addDiscount(discount, `KIT-${(index + 1)}`, kitDiscount.label)
}
discountedItemIds = discountedItemIds.concat(kitItems.map(item => item.product_id))
}
}
})
}
if (buyTogether.length) {
response.buy_together = buyTogether
}
Expand Down Expand Up @@ -519,61 +574,21 @@ module.exports = appSdk => {
}
}

const { customer } = params
if (
customer && (customer._id || customer.doc_number) &&
(discountRule.usage_limit > 0 || discountRule.total_usage_limit > 0)
) {
// list orders to check discount usage limits
return (async function () {
const url = '/orders.json?fields=status' +
`&extra_discount.app.label${(discountRule.case_insensitive ? '%=' : '=')}` +
encodeURIComponent(label)
const usageLimits = [{
// limit by customer
query: customer.doc_number
? `&buyers.doc_number=${customer.doc_number}`
: `&buyers._id=${customer._id}`,
max: discountRule.usage_limit
}, {
// total limit
query: '',
max: discountRule.total_usage_limit
}]

for (let i = 0; i < usageLimits.length; i++) {
const { query, max } = usageLimits[i]
if (max) {
let countOrders
try {
// send Store API request to list orders with filters
const { response } = await appSdk.apiRequest(storeId, `${url}${query}`)
countOrders = response.data.result
.filter(({ status }) => status !== 'cancelled')
.length
} catch (err) {
return res.status(409).send({
error: 'CANT_CHECK_USAGE_LIMITS',
message: err.message
})
}

if (countOrders >= max) {
// limit reached
addFreebies()
response.invalid_coupon_message = params.lang === 'pt_br'
? 'A promoção não pôde ser aplicada porque já atingiu o limite de usos'
: 'The promotion could not be applied because it has already reached the usage limit'
return respondSuccess()
}
}
}
addFreebies()
respondSuccess()
})()
} else {
try {
const isAvailable = await checkUsageLimit(discountRule, label)
if (!isAvailable) {
delete response.discount_rule
response.invalid_coupon_message = params.lang === 'pt_br'
? 'A promoção não pôde ser aplicada porque já atingiu o limite de usos'
: 'The promotion could not be applied because it has already reached the usage limit'
}
addFreebies()
return respondSuccess()
} catch (err) {
return res.status(409).send({
error: 'CANT_CHECK_USAGE_LIMITS',
message: err.message
})
}
}
}
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