Initial Commit

packages/communication/emails/email-templates/tests/setup/html.ts

@@ -0,0 +1,38 @@
+import type { AnyNode, Element } from "domhandler";
+import { findAll, findOne } from "domutils";
+import { parseDocument } from "htmlparser2";
+
+/** Parse an HTML fragment / document and return the DOM root list. */
+export function parse(html: string): AnyNode[] {
+    return parseDocument(html).children;
+}
+
+/** Find the first element matching a predicate (deep search). */
+export function findFirst(
+    html: string,
+    predicate: (el: Element) => boolean
+): Element | null {
+    const roots = parse(html);
+    return findOne(predicate, roots, true);
+}
+
+/** Find every element matching a predicate (deep search). */
+export function findEvery(
+    html: string,
+    predicate: (el: Element) => boolean
+): Element[] {
+    const roots = parse(html);
+    return findAll(predicate, roots);
+}
+
+/** Extract text content from an element (recursive). */
+export function textOf(el: Element | AnyNode | null | undefined): string {
+    if (el === null || el === undefined) return "";
+    if ("data" in el && typeof el.data === "string" && el.type === "text") {
+        return el.data;
+    }
+    if ("children" in el && Array.isArray(el.children)) {
+        return el.children.map((c) => textOf(c as AnyNode)).join("");
+    }
+    return "";
+}