Function createHandler

apps/zui/src/core/handlers.ts:33–51

(
  messageOrHandler: K | Handler<Args, Ret>,
  handler?: Handler<Args, Ret>
)

) => Ret

export function createHandler<K extends HandlerName, Args extends any[], Ret>(
  messageOrHandler: K | Handler<Args, Ret>,
  handler?: Handler<Args, Ret>
) {
  const message = isString(messageOrHandler) ? messageOrHandler : null
  const handleIt = isFunction(messageOrHandler) ? messageOrHandler : handler

  function run(...args: Args) {
    return handleIt(context, ...args)
  }

  if (message) {
    global.zui?.on(message, (_event, ...args: Args) => {
      run(...args)
    })
  }

  return run
}