stuff

apps/web/src/lib/actions/registry.ts

@@ -0,0 +1,53 @@
+import type {
+  TAction,
+  TActionFunc,
+  TActionWithArgs,
+  TActionWithOptionalArgs,
+  TActionArgsMap,
+  TArgOfAction,
+  TInvocationTrigger,
+  TBoundActionList,
+} from "./types";
+
+const boundActions: TBoundActionList = {};
+
+export function bindAction<A extends TAction>(
+  action: A,
+  handler: TActionFunc<A>,
+) {
+  if (boundActions[action]) {
+    boundActions[action]?.push(handler);
+  } else {
+    boundActions[action] = [handler] as any;
+  }
+}
+
+export function unbindAction<A extends TAction>(
+  action: A,
+  handler: TActionFunc<A>,
+) {
+  boundActions[action] = boundActions[action]?.filter(
+    (x) => x !== handler,
+  ) as any;
+
+  if (boundActions[action]?.length === 0) {
+    delete boundActions[action];
+  }
+}
+
+type InvokeActionFunc = {
+  (
+    action: TActionWithOptionalArgs,
+    args?: undefined,
+    trigger?: TInvocationTrigger,
+  ): void;
+  <A extends TActionWithArgs>(action: A, args: TActionArgsMap[A]): void;
+};
+
+export const invokeAction: InvokeActionFunc = <A extends TAction>(
+  action: A,
+  args?: TArgOfAction<A>,
+  trigger?: TInvocationTrigger,
+) => {
+  boundActions[action]?.forEach((handler) => (handler as any)(args, trigger));
+};