refactor(web): migrate core/EmailInput to TypeScript

web/src/components/core/EmailInput.test.jsx → web/src/components/core/EmailInput.test.tsx

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) [2023] SUSE LLC
+ * Copyright (c) [2023-2024] SUSE LLC
  *
  * All Rights Reserved.
  *
@@ -23,9 +23,35 @@
 import React, { useState } from "react";
 import { screen } from "@testing-library/react";
 
-import EmailInput from "./EmailInput";
+import EmailInput, { EmailInputProps } from "./EmailInput";
 import { plainRender } from "~/test-utils";
 
+/**
+ * Controlled component for testing the EmailInputProps
+ *
+ * Instead of testing if given callbacks are called, below tests are going to
+ * check the rendered result to be more aligned with the React Testing Library
+ * principles, https://testing-library.com/docs/guiding-principles/
+ *
+ */
+const EmailInputTest = (props: EmailInputProps) => {
+  const [email, setEmail] = useState("");
+  const [isValid, setIsValid] = useState(true);
+
+  return (
+    <>
+      <EmailInput
+        {...props}
+        value={email}
+        onChange={(_, v) => setEmail(v)}
+        onValidate={setIsValid}
+      />
+      {email && <p>Email value updated!</p>}
+      {isValid === false && <p>Email is not valid!</p>}
+    </>
+  );
+};
+
 describe("EmailInput component", () => {
   it("renders an email input", () => {
     plainRender(
@@ -36,27 +62,6 @@ describe("EmailInput component", () => {
     expect(inputField).toHaveAttribute("type", "email");
   });
 
-  // Using a controlled component for testing the rendered result instead of testing if
-  // the given onChange callback is called. The former is more aligned with the
-  // React Testing Library principles, https://testing-library.com/docs/guiding-principles/
-  const EmailInputTest = (props) => {
-    const [email, setEmail] = useState("");
-    const [isValid, setIsValid] = useState(true);
-
-    return (
-      <>
-        <EmailInput
-          {...props}
-          value={email}
-          onChange={(_, v) => setEmail(v)}
-          onValidate={setIsValid}
-        />
-        {email && <p>Email value updated!</p>}
-        {isValid === false && <p>Email is not valid!</p>}
-      </>
-    );
-  };
-
   it("triggers onChange callback", async () => {
     const { user } = plainRender(<EmailInputTest id="test-email" aria-label="Test email" />);
     const emailInput = screen.getByRole("textbox", { name: "Test email" });

web/src/components/core/EmailInput.jsx → web/src/components/core/EmailInput.tsx

@@ -21,28 +21,25 @@
  */
 
 import React, { useEffect, useState } from "react";
-import { InputGroup, TextInput } from "@patternfly/react-core";
-import { noop } from "~/utils";
+import { InputGroup, TextInput, TextInputProps } from "@patternfly/react-core";
+import { isEmpty, noop } from "~/utils";
 
 /**
  * Email validation.
  *
  * Code inspired by https://github.com/manishsaraan/email-validator/blob/master/index.js
- *
- * @param {string} email
- * @returns {boolean}
  */
-const validateEmail = (email) => {
+const validateEmail = (email: string) => {
   const regexp =
     /^[-!#$%&'*+/0-9=?A-Z^_a-z`{|}~](\.?[-!#$%&'*+/0-9=?A-Z^_a-z`{|}~])*@[a-zA-Z0-9](-*\.?[a-zA-Z0-9])*\.[a-zA-Z](-?[a-zA-Z0-9])+$/;
 
-  const validateFormat = (email) => {
+  const validateFormat = (email: string) => {
     const parts = email.split("@");
 
     return parts.length === 2 && regexp.test(email);
   };
 
-  const validateSizes = (email) => {
+  const validateSizes = (email: string) => {
     const [account, address] = email.split("@");
 
     if (account.length > 64) return false;
@@ -58,22 +55,25 @@ const validateEmail = (email) => {
   return validateFormat(email) && validateSizes(email);
 };
 
+export type EmailInputProps = TextInputProps & { onValidate?: (isValid: boolean) => void };
+
 /**
  * Renders an email input field which validates its value.
  * @component
  *
- * @param {(boolean) => void} onValidate - Callback to be called every time the input value is
+ * @param onValidate - Callback to be called every time the input value is
  *  validated.
- * @param {Object} props - Props matching the {@link https://www.patternfly.org/components/forms/text-input PF/TextInput},
+ * @param props - Props matching the {@link https://www.patternfly.org/components/forms/text-input PF/TextInput},
  *  except `type` and `validated` which are managed by the component.
  */
-export default function EmailInput({ onValidate = noop, ...props }) {
+export default function EmailInput({ onValidate = noop, ...props }: EmailInputProps) {
   const [isValid, setIsValid] = useState(true);
 
   useEffect(() => {
-    const isValid = props.value.length === 0 || validateEmail(props.value);
+    const { value } = props;
+    const isValid = typeof value === "string" && (isEmpty(value) || validateEmail(value));
     setIsValid(isValid);
-    onValidate(isValid);
+    typeof onValidate === "function" && onValidate(isValid);
   }, [onValidate, props.value, setIsValid]);
 
   return (