Feat/lhac 202 reshape images and money (#4)

* feat: add reshape functions for money and image

lib/commercetools/index.jest.test.ts

@@ -0,0 +1,67 @@
+import { reshapeMoney, reshapeImage } from ".";
+import {
+  CentPrecisionMoney as CommercetoolsCentPrecisionMoney,
+  HighPrecisionMoney as CommercetoolsHighPrecisionMoney
+} from "@commercetools/platform-sdk";
+
+describe("reshape & fetch functions", () => {
+  describe("reshapeMoney", () => {
+    it("returns correct amount for cent precision", () => {
+      const centPrecisionMoney: CommercetoolsCentPrecisionMoney = {
+        type: "centPrecision",
+        centAmount: 1001,
+        currencyCode: "EUR",
+        fractionDigits: 2
+      };
+
+      const result = reshapeMoney(centPrecisionMoney);
+
+      const expectedResult = { amount: "10.01", currencyCode: "EUR" };
+      expect(result).toEqual(expectedResult);
+    });
+
+    it("returns correct amount for high precision", () => {
+      const highPrecisionMoney: CommercetoolsHighPrecisionMoney = {
+        type: "highPrecision",
+        preciseAmount: 100001,
+        centAmount: 1000,
+        currencyCode: "EUR",
+        fractionDigits: 4
+      };
+
+      const result = reshapeMoney(highPrecisionMoney);
+
+      const expectedResult = { amount: "10.0001", currencyCode: "EUR" };
+      expect(result).toEqual(expectedResult);
+    });
+  });
+
+  describe("reshapeImage", () => {
+    it("returns correctly reshaped image with alt text", () => {
+      const image = {
+        url: "an-url",
+        dimensions: { w: 800, h: 600 },
+        label: "a-label"
+      };
+
+      const result = reshapeImage(image);
+
+      const expectedResult = { url: "an-url", width: 800, height: 600, altText: "a-label" };
+
+      expect(result).toEqual(expectedResult);
+    });
+
+    it("returns correctly reshaped image with empty string as alt text", () => {
+      const image = {
+        url: "an-url",
+        dimensions: { w: 800, h: 600 }
+      };
+
+      const result = reshapeImage(image);
+
+      const expectedResult = { url: "an-url", width: 800, height: 600, altText: "" };
+
+      expect(result).toEqual(expectedResult);
+    });
+  });
+});

lib/commercetools/index.ts

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+import {
+  TypedMoney as CommercetoolsTypedMoney,
+  Image as CommercetoolsImage,
+  CentPrecisionMoney,
+  HighPrecisionMoney,
+  TypedMoney
+} from "@commercetools/platform-sdk";
+import { Image, Money } from "./types";
+
+export function reshapeMoney(typedMoney: TypedMoney): Money {
+  const { fractionDigits, currencyCode, type } = typedMoney;
+  const typedAmount = type === "centPrecision" ? typedMoney.centAmount : typedMoney.preciseAmount;
+
+  const amount = (typedAmount / Math.pow(10, fractionDigits)).toString();
+  return { amount, currencyCode };
+}
+
+export function reshapeImage(image: CommercetoolsImage): Image {
+  return {
+    url: image.url,
+    width: image.dimensions.w,
+    height: image.dimensions.h,
+    altText: image.label || ""
+  };
+}