Allow widget placeholder replacement on primitives

web/scripts/utils.js

@@ -0,0 +1,67 @@
+// Simple date formatter
+const parts = {
+	d: (d) => d.getDate(),
+	M: (d) => d.getMonth() + 1,
+	h: (d) => d.getHours(),
+	m: (d) => d.getMinutes(),
+	s: (d) => d.getSeconds(),
+};
+const format =
+	Object.keys(parts)
+		.map((k) => k + k + "?")
+		.join("|") + "|yyy?y?";
+
+function formatDate(text, date) {
+	return text.replace(new RegExp(format, "g"), function (text) {
+		if (text === "yy") return (date.getFullYear() + "").substring(2);
+		if (text === "yyyy") return date.getFullYear();
+		if (text[0] in parts) {
+			const p = parts[text[0]](date);
+			return (p + "").padStart(text.length, "0");
+		}
+		return text;
+	});
+}
+
+export function applyTextReplacements(app, value) {
+	return value.replace(/%([^%]+)%/g, function (match, text) {
+		const split = text.split(".");
+		if (split.length !== 2) {
+			// Special handling for dates
+			if (split[0].startsWith("date:")) {
+				return formatDate(split[0].substring(5), new Date());
+			}
+
+			if (text !== "width" && text !== "height") {
+				// Dont warn on standard replacements
+				console.warn("Invalid replacement pattern", text);
+			}
+			return match;
+		}
+
+		// Find node with matching S&R property name
+		let nodes = app.graph._nodes.filter((n) => n.properties?.["Node name for S&R"] === split[0]);
+		// If we cant, see if there is a node with that title
+		if (!nodes.length) {
+			nodes = app.graph._nodes.filter((n) => n.title === split[0]);
+		}
+		if (!nodes.length) {
+			console.warn("Unable to find node", split[0]);
+			return match;
+		}
+
+		if (nodes.length > 1) {
+			console.warn("Multiple nodes matched", split[0], "using first match");
+		}
+
+		const node = nodes[0];
+
+		const widget = node.widgets?.find((w) => w.name === split[1]);
+		if (!widget) {
+			console.warn("Unable to find widget", split[1], "on node", split[0], node);
+			return match;
+		}
+
+		return ((widget.value ?? "") + "").replaceAll(/\/|\\/g, "_");
+	});
+}