Move parser out to on demand (maybe move to on-startup, or on schedule, later)

src/app/services/register.service.ts

@@ -0,0 +1,20 @@
+
+import { promises as fs } from 'fs';
+import path from 'path';
+import { Register } from '@/utils/parser';
+import { parseNextReg } from '@/utils/parser';
+
+let registers: Register[] = [];
+
+/**
+ * Gets the registers from the in-memory cache, or loads them from the file if not already loaded.
+ * @returns A promise that resolves to an array of Register objects.
+ */
+export async function getRegisters(): Promise<Register[]> {
+  if (registers.length === 0) {
+    const filePath = path.join(process.cwd(), 'data', 'nextreg.txt');
+    const fileContent = await fs.readFile(filePath, 'utf8');
+    registers = await parseNextReg(fileContent);
+  }
+  return registers;
+}