🐛 Handle confirm deletes with multiple spaces (konveyor#1572)

Resolves: https://issues.redhat.com/browse/MTA-1725

When confirming the deletion of an entity by requiring the user to enter
the name of the entity, the string check needs to ignore differences in
white space.

The entity name may contain multiple spaces between words, but not show
the spaces when viewing the name outside of an input box. HTML normally
collapses multiple spaces into a single space. Also if the confirming
name gets an extra space typed, that can cause a hard to see string
mismatch. Trimming and then collapsing multiple spaces into a single
space before comparing the string avoids this problem.

Signed-off-by: Scott J Dickerson <[email protected]>

client/src/app/components/ConfirmDeleteDialog/ConfirmDeleteDialog.tsx

@@ -9,6 +9,7 @@ import {
   Text,
   TextInput,
 } from "@patternfly/react-core";
+import { collapseSpacesAndCompare } from "@app/utils/utils";
 
 import "./ConfirmDeleteDialog.css";
 
@@ -39,7 +40,12 @@ const ConfirmDeleteDialog: FC<ConfirmDeleteDialogProps> = ({
 
   const [nameToDeleteInput, setNameToDeleteInput] = useState<string>("");
 
-  const isDisabled = nameToDeleteInput !== nameToDelete;
+  /*
+    Enable the delete button once the input name matches the `nameToDelete`, BUT
+    collapse spaces since that is the way the name is rendered
+   */
+  const isDisabled =
+    collapseSpacesAndCompare(nameToDeleteInput, nameToDelete) !== 0;
 
   const handleClose = () => {
     setNameToDeleteInput("");

client/src/app/utils/utils.test.ts

@@ -8,6 +8,7 @@ import {
   standardURLRegex,
   formatPath,
   extractFirstSha,
+  collapseSpacesAndCompare,
 } from "./utils";
 import { Paths } from "@app/Paths";
 
@@ -219,3 +220,36 @@ describe("SHA extraction", () => {
     expect(first).toBe("9c04cd6372077e9b11f70ca111c9807dc7137e4b");
   });
 });
+
+describe("space collapse string compare (using en-US compares)", () => {
+  it("both undefined matches", () => {
+    const result = collapseSpacesAndCompare(undefined, undefined, "en-US");
+    expect(result).toBe(0);
+  });
+
+  it("left undefined goes before right defined", () => {
+    const result = collapseSpacesAndCompare(undefined, "anything", "en-US");
+    expect(result).toBe(-1);
+  });
+
+  it("left defined goes after right undefined", () => {
+    const result = collapseSpacesAndCompare("anything", undefined, "en-US");
+    expect(result).toBe(1);
+  });
+
+  it.each([
+    ["alpha", "alpha", 0],
+    ["alpha", "bravo", -1],
+    ["bravo", "alpha", 1],
+    ["   alpha", "alpha     ", 0],
+    ["alpha bravo", "alpha       bravo", 0],
+    ["bravo    alpha", "bravo           bravo", -1],
+    ["The    quick brown    fox   ", "The quick brown fox", 0],
+  ])(
+    "mismatching spaces work as if spaces are collapsed (%s) to (%s) = %i",
+    (a, b, expected) => {
+      const result = collapseSpacesAndCompare(a, b, "en-US");
+      expect(result).toBe(expected);
+    }
+  );
+});

client/src/app/utils/utils.ts

@@ -168,3 +168,24 @@ export const extractFirstSha = (str: string): string | undefined => {
   const match = str.match(SHA_REGEX);
   return match && match[0] ? match[0] : undefined;
 };
+
+export const collapseSpacesAndCompare = (
+  str1: string | undefined,
+  str2: string | undefined,
+  locale?: string
+): number => {
+  if (!str1 && !str2) {
+    return 0;
+  }
+  if (str1 && !str2) {
+    return 1;
+  }
+  if (!str1 && str2) {
+    return -1;
+  }
+
+  const a = str1?.trim().replace(/\s+/g, " ") ?? "";
+  const b = str2?.trim().replace(/\s+/g, " ") ?? "";
+
+  return a.localeCompare(b, locale);
+};