codebase overhaul (#697)

1 files changed, 61 insertions, 0 deletions

diff --git a/apps/web/src/lib/actions/registry.ts b/apps/web/src/lib/actions/registry.ts
new file mode 100644
index 00000000..b9c84529
--- /dev/null
+++ b/apps/web/src/lib/actions/registry.ts
@@ -0,0 +1,61 @@
+import type {
+	TAction,
+	TActionFunc,
+	TActionWithArgs,
+	TActionWithOptionalArgs,
+	TActionArgsMap,
+	TArgOfAction,
+	TInvocationTrigger,
+} from "./types";
+
+type ActionHandler = (arg: unknown, trigger?: TInvocationTrigger) => void;
+const boundActions: Partial<Record<TAction, ActionHandler[]>> = {};
+
+export function bindAction<A extends TAction>(
+	action: A,
+	handler: TActionFunc<A>,
+) {
+	const handlers = boundActions[action];
+	const typedHandler = handler as ActionHandler;
+	if (handlers) {
+		handlers.push(typedHandler);
+	} else {
+		boundActions[action] = [typedHandler];
+	}
+}
+
+export function unbindAction<A extends TAction>(
+	action: A,
+	handler: TActionFunc<A>,
+) {
+	const handlers = boundActions[action];
+	if (!handlers) return;
+
+	const typedHandler = handler as ActionHandler;
+	boundActions[action] = handlers.filter((h) => h !== typedHandler);
+
+	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],
+		trigger?: TInvocationTrigger,
+	): void;
+};
+
+export const invokeAction: InvokeActionFunc = <A extends TAction>(
+	action: A,
+	args?: TArgOfAction<A>,
+	trigger?: TInvocationTrigger,
+) => {
+	boundActions[action]?.forEach((handler) => handler(args, trigger));
+};