feat: complete rewrite

cache/snipe-list.cache.ts

@@ -0,0 +1,34 @@
+import fs from 'fs';
+import path from 'path';
+import { logger, SNIPE_LIST_REFRESH_INTERVAL } from '../helpers';
+
+export class SnipeListCache {
+  private snipeList: string[] = [];
+
+  constructor() {
+    setInterval(this.loadSnipeList, SNIPE_LIST_REFRESH_INTERVAL);
+  }
+
+  public init() {
+    this.loadSnipeList();
+  }
+
+  public isInList(mint: string) {
+    return this.snipeList.includes(mint);
+  }
+
+  private loadSnipeList() {
+    logger.trace('Refreshing snipe list...');
+
+    const count = this.snipeList.length;
+    const data = fs.readFileSync(path.join(__dirname, 'snipe-list.txt'), 'utf-8');
+    this.snipeList = data
+      .split('\n')
+      .map((a) => a.trim())
+      .filter((a) => a);
+
+    if (this.snipeList.length != count) {
+      logger.info(`Loaded snipe list: ${this.snipeList.length}`);
+    }
+  }
+}