Library Catalog (TIND ILS): Enrich item type from Schema.org

Records in the TIND platform may include a Schema.org mapping. This
mapping often has a `@type` property that is more accurate than what
can be obtained purely from the MARC data of the record.

Library Catalog (TIND ILS).js

@@ -79,7 +79,13 @@ function doWeb(doc, url) {
 	}
 }
 
+/**
+ *
+ * @param {Document} doc The page document
+ */
 function scrape(doc, _url) {
+	const schemaOrg = getSchemaOrg(doc);
+
 	let marcXMLURL = attr(doc, 'a[href$="/export/xm"], a[download$=".xml"]', 'href');
 	ZU.doGet(marcXMLURL, function (respText) {
 		var translator = Zotero.loadTranslator("import");
@@ -96,13 +102,89 @@ function scrape(doc, _url) {
 				item.url = erURL;
 			}
 
+			if (schemaOrg) {
+				enrichItemWithSchemaOrgItemType(item, schemaOrg);
+			}
+
 			item.complete();
 		});
 
 		translator.translate();
 	});
 }
 
+/**
+ * Enriches the Zotero item with item type found in the Schema.org data.
+ *
+ * @param {Z.Item} item The Zotero item
+ * @param {Object} schemaOrg The parsed Schema.org data
+ */
+function enrichItemWithSchemaOrgItemType(item, schemaOrg) {
+	if (!schemaOrg.hasOwnProperty("@type")) {
+		return;
+	}
+
+	const schemaOrgType = schemaOrg["@type"];
+
+	if (!schemaOrgType) {
+		return;
+	}
+
+	/**
+	 * @type {Map<string, keyof Z.ItemTypes>}
+	 */
+	const schemaOrgType2ZoteroType = new Map([
+		["Thing", "document"],
+		["CreativeWork", "document"],
+		["Article", "journalArticle"],
+		["ScholarlyArticle", "journalArticle"],
+		["Report", "report"],
+		["Thesis", "thesis"],
+		["Manuscript", "manuscript"],
+		["Dataset", "dataset"],
+	]);
+
+	if (schemaOrgType2ZoteroType.has(schemaOrgType)) {
+		item.itemType = schemaOrgType2ZoteroType.get(schemaOrgType);
+	}
+}
+
+/**
+ * Obtains the parsed Schema.org data from the page.
+ *
+ * @param {Document} doc The page document
+ * @returns {Object | null} The schema.org JSON-LD object
+ */
+function getSchemaOrg(doc) {
+	const schemaOrgElement = doc.getElementById("detailed-schema-org");
+
+	if (schemaOrgElement === null) {
+		return;
+	}
+
+	let schemaOrg;
+
+	try {
+		schemaOrg = JSON.parse(schemaOrgElement.innerHTML);
+	} catch (error) {
+		return;
+	}
+
+	if (typeof schemaOrg !== "object") {
+		return;
+	}
+
+	if (!schemaOrg.hasOwnProperty("@context")) {
+		return;
+	}
+
+	if (schemaOrg["@context"] !== "https://schema.org") {
+		return;
+	}
+
+	return schemaOrg;
+}
+
 /** BEGIN TEST CASES **/
 var testCases = [
 	{