Reduce Community lint type-safety warnings

src/common/obsidianSettings.ts

@@ -0,0 +1,27 @@
+import type { App } from "@/deps.ts";
+
+function getSettingsManager(app: App): Record<string, unknown> {
+    const manager: unknown = Reflect.get(app, "setting");
+    if (typeof manager !== "object" || manager === null) {
+        throw new TypeError("Obsidian does not expose the settings manager");
+    }
+    return manager as Record<string, unknown>;
+}
+
+function invokeSettingsMethod(app: App, methodName: string, args: unknown[] = []): void {
+    const manager = getSettingsManager(app);
+    const method = manager[methodName];
+    if (typeof method !== "function") {
+        throw new TypeError(`Obsidian does not expose settings.${methodName}`);
+    }
+    Reflect.apply(method, manager, args);
+}
+
+export function openObsidianSettings(app: App, tabId: string): void {
+    invokeSettingsMethod(app, "open");
+    invokeSettingsMethod(app, "openTabById", [tabId]);
+}
+
+export function closeObsidianSettings(app: App): void {
+    invokeSettingsMethod(app, "close");
+}