added app state management

src/Bot.ts

@@ -10,6 +10,7 @@ import { SystemMessageManager } from "./SystemMessage.js";
 import { CommandMessageStructure } from "./types/Command.js";
 import { InitOptions } from "./types/Bot.js";
 import { HelpMessageParams } from "./types/HelpMessage.js";
+import { applicationState } from "./global/state.js";
 
 export declare interface Bot {
     on(event: "READY", listener: Function): this;
@@ -134,7 +135,7 @@ export class Bot extends EventEmitter {
                 const helpMsg: Command = new HelpMessage(this.commands, this.messages.help, this.name);
                 this.commands.add(helpMsg);
             }
-            this.commands.freezeList();
+            applicationState.running = true;
             process.stdout.write("Connecting to Discord... ");
             this.client.login(this.token);
             this.client.on("ready", async () => {

src/CommandManager.ts

@@ -3,6 +3,7 @@ import { MissingParameterError } from "./errors.js";
 import { BooleanParameter, InputParameter, NumberParameter, ObjectParameter, StringParameter } from "./Parameter.js";
 import { Command } from "./Command.js";
 import { CommandMessageStructure, PhraseOccurrenceData } from "./types/Command.js";
+import { applicationState } from "./global/state.js";
 
 /**
  * @class Command manager
@@ -66,6 +67,9 @@ export class CommandManager {
      */
     public add(command: Command): boolean {
         try {
+            if (applicationState.running) {
+                throw new Error("Cannot add command while the application is running");
+            }
             if (!(command instanceof Command)) {
                 throw new TypeError("Inavlid argument type");
             }
@@ -206,13 +210,6 @@ export class CommandManager {
         return null;
     }
 
-    public freezeList(): void {
-        if (!Object.isFrozen(this._list)) {
-            Object.freeze(this._list);
-        }
-        return;
-    }
-
     private findPhraseOccurrence(phrase?: string): PhraseOccurrenceData | null {
         let returnValue: PhraseOccurrenceData | null = null;
         this._list.map((c) => {

src/StateManager.ts

@@ -0,0 +1,13 @@
+export class StateManager {
+    private _isRunning: boolean = false;
+
+    get running() {
+        return this._isRunning;
+    }
+
+    set running(bool) {
+        if (!this._isRunning) {
+            this._isRunning = bool;
+        }
+    }
+}

src/global/state.ts

@@ -0,0 +1,3 @@
+import { StateManager } from "../StateManager.js";
+
+export const applicationState = new StateManager();