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Implemented: support to get stock for multiple products on multiple facilities(#85zrje7ae) #54

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Implemented: support to get stock for multiple products on multiple facilities(#85zrje7ae) #54

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34 changes: 23 additions & 11 deletions src/modules/stock/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,25 +4,37 @@ import { Stock, Response, OPERATOR } from "@/types"
import { transform } from "node-json-transform";
import { stockTransformRule } from "@/mappings/stock";

async function fetchProductsStockAtFacility(productIds: Array<string>, facilityId?: string): Promise<Array<Stock> | Response> {
// TODO: define params types
/*
Finds the inventory for multiple/single product at multiple/single/0 (zero) facility
When facilityId is not being passed then stock for all the facilities will be fetched separately
*/
async function fetchProductsStockAtFacility(params: any): Promise<Array<Stock> | Response> {
// There is a limitation at API level to handle only 100 records
// but as we will always fetch data for the fetched records which will be as per the viewSize
// assuming that the value will never be 100 to show

// When facility is not being passed stock for all the facilities will be fetched
const query = {
"filters": {
"productId": productIds,
"productId_op": OPERATOR.IN
},
"viewSize": productIds.length * 10, // TODO: find a better way to find viewSize, currently assuming that a single product can be at most available on 10 facilities
"viewSize": 1, // initializing viewSize as 1, because at least we need one record in case of success
"fieldsToSelect": ["productId", "atp", "facilityId"]
} as any

// support to get stock for a specific facility
if (facilityId) {
query.filters["facilityId"] = facilityId
query.viewSize = productIds.length // kept viewSize equal to productsIds length as we only want stock at a single facility and at max we can find all the products
Object.keys(params).map((key) => {

const paramValue = params[key].value;
query.filters[key] = paramValue

if(Array.isArray(paramValue)) {
// calculating the viewSize by multiplying the length of params value with the current view Size
query.viewSize *= paramValue.length
query.filters[`${key}_op`] = OPERATOR.IN
}
})

// When not having facilityId in filters, then multiplying the viewSize by 10, assuming that the inventory
// for a product will be at most available on 10 facilities
if(!query.filters.facilityId) {
query.viewSize *= 10
}

try {
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