minor bugfixes for singleusermode, added seiso command and basic item implementation

items need to check the inventory of the user themselves
also !iteminfo and !use commands should be super easy to make
i do wonder if there's a nicer way to create the Item objects

bot/items/index.ts

@@ -0,0 +1,47 @@
+import { EventSubChannelChatMessageEvent } from "@twurple/eventsub-base";
+import { User } from "../user";
+
+export class Item {
+  public readonly name: string;
+  public readonly prettyName: string;
+  public readonly plural: string;
+  public readonly description: string;
+  public readonly aliases: string[];
+  public readonly requiredIntents: string[];
+  public readonly execute: (message: EventSubChannelChatMessageEvent, sender: User) => Promise<void>;
+  /** Creates an item object
+   * @param name - internal name of item
+   * @param prettyName - name of item for presenting to chat
+   * @param plural - plural appendage; example: lootbox(es)
+   * @param description - description of what item does
+   * @param aliases - alternative ways to activate item
+   * @param requiredIntents - required twitch API scopes to use item
+   * @param execution - code that gets executed when item gets used */
+  constructor(name: string, prettyName: string, plural: string, description: string, aliases: string[], requiredIntents: string[], execution: (message: EventSubChannelChatMessageEvent, sender: User) => Promise<void>) {
+    this.name = name;
+    this.prettyName = prettyName;
+    this.plural = plural;
+    this.description = description;
+    this.aliases = aliases;
+    this.requiredIntents = requiredIntents;
+    this.execute = execution;
+  };
+};
+
+import { readdir } from 'node:fs/promises';
+const items = new Map<string, Item>;
+const itemintents: string[] = [];
+
+const files = await readdir(import.meta.dir);
+for (const file of files) {
+  if (!file.endsWith('.ts')) continue;
+  if (file === import.meta.file) continue;
+  const item: Item = await import(import.meta.dir + '/' + file.slice(0, -3)).then(a => a.default);
+  itemintents.push(...item.requiredIntents);
+  for (const alias of item.aliases) {
+    items.set(alias, item); // Since it's not a primitive type the map is filled with references to the item, not the actual object
+  };
+};
+
+export default items;
+export { itemintents };