56a4dbb3a3
* refactor: ♻️ split into services * docs: 💡 add comment about joining providers * fix: 🐛 change name from avalara to avatax * build: 👷 add changeset * fix: 🐛 move return into catch
112 lines
3.6 KiB
TypeScript
112 lines
3.6 KiB
TypeScript
import { CreateTransactionModel } from "avatax/lib/models/CreateTransactionModel";
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import { LineItemModel } from "avatax/lib/models/LineItemModel";
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import { TransactionModel } from "avatax/lib/models/TransactionModel";
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import { TaxBaseFragment } from "../../../generated/graphql";
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import { ChannelConfig } from "../channels-configuration/channels-config";
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import { taxLineResolver } from "../taxes/tax-line-resolver";
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import { ResponseTaxPayload } from "../taxes/types";
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import { AvataxConfig } from "./avatax-config";
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const SHIPPING_ITEM_CODE = "Shipping";
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const formatCalculatedAmount = (amount: number) => {
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return Number(amount.toFixed(2));
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};
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const prepareLines = (taxBase: TaxBaseFragment): LineItemModel[] => {
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const productLines = taxBase.lines.map((line) => ({
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amount: line.unitPrice.amount,
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taxIncluded: line.chargeTaxes,
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taxCode: taxLineResolver.getLineTaxCode(line),
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quantity: line.quantity,
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itemCode: "Product",
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}));
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if (taxBase.shippingPrice.amount !== 0) {
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// * In Avatax, shipping is a regular line
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const shippingLine: LineItemModel = {
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amount: taxBase.shippingPrice.amount,
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itemCode: SHIPPING_ITEM_CODE,
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quantity: 1,
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};
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return [...productLines, shippingLine];
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}
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return productLines;
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};
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const defaultAvataxTransactionModel = {
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// todo: what is customerCode
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customerCode: "0",
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type: 0,
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};
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const preparePayload = (
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taxBase: TaxBaseFragment,
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channel: ChannelConfig,
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config: AvataxConfig
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): CreateTransactionModel => {
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return {
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...defaultAvataxTransactionModel,
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companyCode: config.companyName,
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// * commit: If true, the transaction will be committed immediately after it is created. See: https://developer.avalara.com/communications/dev-guide_rest_v2/commit-uncommit
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commit: config.isAutocommit,
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addresses: {
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shipFrom: {
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line1: channel.address.street,
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city: channel.address.city,
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region: channel.address.state,
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postalCode: channel.address.zip,
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country: channel.address.country,
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},
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shipTo: {
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line1: taxBase.address?.streetAddress1,
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line2: taxBase.address?.streetAddress2,
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city: taxBase.address?.city,
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country: taxBase.address?.country.code,
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postalCode: taxBase.address?.postalCode,
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region: taxBase.address?.countryArea,
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},
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},
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lines: prepareLines(taxBase),
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// todo: replace date with order/checkout date
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date: new Date(),
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};
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};
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const prepareResponse = (transaction: TransactionModel): ResponseTaxPayload => {
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const shippingLine = transaction.lines?.find((line) => line.itemCode === SHIPPING_ITEM_CODE);
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const productLines = transaction.lines?.filter((line) => line.itemCode !== SHIPPING_ITEM_CODE);
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const shippingGrossAmount = shippingLine?.taxableAmount ?? 0;
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const shippingTaxCalculated = shippingLine?.taxCalculated ?? 0;
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const shippingNetAmount = formatCalculatedAmount(shippingGrossAmount - shippingTaxCalculated);
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return {
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shipping_price_gross_amount: shippingGrossAmount,
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shipping_price_net_amount: shippingNetAmount,
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// todo: add shipping tax rate
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shipping_tax_rate: 0,
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lines:
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productLines?.map((line) => {
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const lineTaxCalculated = line.taxCalculated ?? 0;
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const lineTotalNetAmount = line.taxableAmount ?? 0;
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const lineTotalGrossAmount = formatCalculatedAmount(lineTotalNetAmount + lineTaxCalculated);
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return {
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total_gross_amount: lineTotalGrossAmount,
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total_net_amount: lineTotalNetAmount,
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// todo: add tax rate
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tax_rate: 0,
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};
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}) ?? [],
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};
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};
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export const avataxCalculate = {
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preparePayload,
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prepareResponse,
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prepareLines,
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};
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