fix: ensure the Actor instance is initialized while calling its methods (#471)

Adds a warning on a non-initialized Actor on `useState`, `exit`,
`reboot` and `setStatusMessage` method calls.

Author: barjin

packages/apify/src/actor.ts

@@ -534,6 +534,9 @@ export class Actor<Data extends Dictionary = Dictionary> {
         options.exit ??= true;
         options.exitCode ??= EXIT_CODES.SUCCESS;
         options.timeoutSecs ??= 30;
+
+        this._ensureActorInit('exit');
+
         const client = this.config.getStorageClient();
         const events = this.config.getEventManager();
 
@@ -807,6 +810,8 @@ export class Actor<Data extends Dictionary = Dictionary> {
      * @ignore
      */
     async reboot(options: RebootOptions = {}): Promise<void> {
+        this._ensureActorInit('reboot');
+
         if (!this.isAtHome()) {
             log.warning(
                 'Actor.reboot() is only supported when running on the Apify platform.',
@@ -916,6 +921,8 @@ export class Actor<Data extends Dictionary = Dictionary> {
         ow(statusMessage, ow.string);
         ow(isStatusMessageTerminal, ow.optional.boolean);
 
+        this._ensureActorInit('setStatusMessage');
+
         const loggedStatusMessage = `[Status message]: ${statusMessage}`;
 
         switch (level) {
@@ -1523,6 +1530,8 @@ export class Actor<Data extends Dictionary = Dictionary> {
         defaultValue = {} as State,
         options?: UseStateOptions,
     ) {
+        this._ensureActorInit('useState');
+
         const kvStore = await KeyValueStore.open(options?.keyValueStoreName, {
             config: options?.config || Configuration.getGlobalConfig(),
         });