import log4js from "logger";

const logger = log4js.getLogger("SCHEDULER");

export type TaskHandler = (
  payload?: Record<string, unknown>
) => Promise<{ success: boolean; message: string }>;

const registry = new Map<string, TaskHandler>();

export function registerTask(name: string, handler: TaskHandler): void {
  if (registry.has(name)) {
    logger.warn("Task '%s' is already registered, overwriting", name);
  }
  registry.set(name, handler);
  logger.info("Registered task: %s", name);
}

export function hasTask(name: string): boolean {
  return registry.has(name);
}

export function listRegisteredTasks(): string[] {
  return Array.from(registry.keys());
}

export function getTaskHandler(name: string): TaskHandler | undefined {
  return registry.get(name);
}