/**
 * Store — centralized file I/O for JSON data.
 * Replaces scattered fs.readFileSync/writeFileSync calls.
 *
 * Usage:
 *   import { Store } from "@systems/store";
 *
 *   const data = Store.read<MyType>("path/to/file.json");
 *   Store.write("path/to/file.json", data);
 *   const data = Store.readOrDefault<MyType>("path/to/file.json", {});
 */

 import fs from "fs";

 export const Store = {
   /**
    * Read and parse a JSON file.
    * Returns null if file doesn't exist or can't be parsed.
    */
   read<T>(filePath: string): T | null {
     try {
       return JSON.parse(fs.readFileSync(filePath, "utf8")) as T;
     } catch {
       return null;
     }
   },
 
   /**
    * Read and parse a JSON file, returning a default value on failure.
    */
   readOrDefault<T>(filePath: string, defaultValue: T): T {
     return Store.read<T>(filePath) ?? defaultValue;
   },
 
   /**
    * Serialize and write data to a JSON file.
    */
   write<T>(filePath: string, data: T): void {
     fs.writeFileSync(filePath, JSON.stringify(data, null, 2));
   },
 
   /**
    * Check if a file exists.
    */
   exists(filePath: string): boolean {
     return fs.existsSync(filePath);
   },
 
   /**
    * Delete a file if it exists.
    */
   delete(filePath: string): void {
     if (fs.existsSync(filePath)) fs.unlinkSync(filePath);
   },
 };