initial - tempbans & mutes

backend/src/utils/timers.ts

@@ -0,0 +1,40 @@
+import { Snowflake } from "discord-api-types";
+
+type TimerCallback = (key: string, expiry: number) => void;
+
+type TimerOptions = {
+  key: Snowflake;
+  guildId?: Snowflake;
+  expiry: number;
+  plugin?: string;
+  callback: TimerCallback;
+};
+
+export class ExpiringTimer {
+  done: boolean = false;
+  options: TimerOptions;
+  timeout?: NodeJS.Timeout;
+  data?: any; // idk how to make this take generic <T> typings data
+  isValid() {
+    return !this.done;
+  }
+  private execute() {
+    if (!this.isValid()) return;
+    this.options.callback(this.options.key, this.options.expiry);
+    this.done = true;
+  }
+  init() {
+    if (this.timeout) this.clear();
+    this.timeout = setTimeout(() => this.execute(), this.options.expiry);
+  }
+  clear() {
+    if (this.timeout) {
+      clearTimeout(this.timeout);
+      this.timeout = undefined;
+    }
+  }
+  constructor(options: TimerOptions) {
+    this.options = options;
+    this.init();
+  }
+}