Finish the helper in the public API and broadcast the socket event

module/Apps/DelveDiceHUD.mjs

@@ -264,9 +264,40 @@ export class DelveDiceHUD extends HandlebarsApplicationMixin(ApplicationV2) {
 		game.settings.set(`ripcrypt`, `sandsOfFate`, newSands);
 	};
 
+	/**
+	 * A helper method that rolls the dice required for hasty turns while delving
+	 * and adjusts the Sands of Fate accordingly
+	 */
 	static async rollForHaste() {
+		const shouldUpdateSands = game.settings.get(`ripcrypt`, `allowUpdateSandsSocket`);
+		if (shouldUpdateSands && game.users.activeGM == null) {
+			ui.notifications.error(localizer(`RipCrypt.notifs.error.no-active-gm`));
+			return;
+		};
+
 		const roll = new Roll(`1d8xo=1`);
 		await roll.evaluate();
+
+		let delta = 0;
+		if (roll.dice[0].results[0].exploded) {
+			delta = -1;
+			if (roll.dice[0].results[1].result === 1) {
+				delta = -2;
+			};
+		};
+
+		roll.toMessage({ flavor: `Haste Check` });
+
+		// Change the Sands of Fate setting if required
+		if (delta === 0 || !shouldUpdateSands) { return };
+		if (game.user.isActiveGM) {
+			ui.delveDice.sandsOfFateDelta(delta);
+		} else {
+			game.socket.emit(`system.ripcrypt`, {
+				event: `updateSands`,
+				payload: { delta },
+			});
+		};
 	};
 	// #endregion
 };