Updated config manager and app error utils (and main file accordingly), updated express version

src/database/sqlite.js

@@ -1,6 +1,7 @@
 const sqlite = require("better-sqlite3");
 
 class SQLiteDatabase {
+    
     constructor(config) {
         this.config = config;
         this.db = null;
@@ -9,7 +10,7 @@ class SQLiteDatabase {
     async connect() {
         try {
             this.db = new sqlite("./data/sqlite.db");
-            // db.pragma("journal_mode = WAL");
+            // this.db.pragma("journal_mode = WAL");
             console.log("Connected to SQLite");
         } catch (err) {
             console.error("Error connecting to SQLite database: ", err);

src/utils/appError.js

@@ -1,7 +1,8 @@
 class AppError extends Error {
-    constructor(statusCode, status = "", message) {
+    constructor(statusCode, message, status = "", debugMsg = "") {
         super(message);
         this.statusCode = statusCode;
+        this.debugMsg = debugMsg;
         // Get status
         if (status === "") {
             if (statusCode.toString().startsWith("4")) {

src/utils/configManager.js

@@ -1,13 +1,73 @@
+// --- Define constants ---
+
+// Imports
 const fs = require("fs");
 const path = require("path");
+const { version } = require("../../package.json");
+
 
 // Var decalaration
-let config;
 const config_folder = "config";
 const config_file_name = "config.json"
 
-// Load config
-config = JSON.parse(fs.readFileSync(path.join(config_folder, config_file_name)));
+// Global variables
+let config = {};
+
+// --- Default config ---
+
+const defaault_config = {
+
+    "port": 8000,
+
+    "users": {
+        "admin": {
+            "username": "admin",
+            "password": "admin"
+        }
+    },
+    
+    "database": {
+        "type": "sqlite"
+    },
+
+    "auth" : {
+        "JWT_secret": "HGF7654EGBNKJNBJH6754356788GJHGY"
+    }
+}
+
+
+// --- Functions ---
+
+function loadConfig() {
+
+    let user_config;
+
+    // Parse
+    try {
+        // Get user config
+        user_config = JSON.parse(fs.readFileSync(path.resolve(path.join(config_folder, config_file_name))));
+        
+        // Warns
+        if (!user_config.auth || !user_config.auth.jwtSecret) {
+            console.warn("WARNING: No JWT secret provided, using the default one. Please note that using the default secret is a major security risk.")
+        }
+
+        // Merge default and user configs (default values)
+        config = { ...default_config, ...user_config };
+    } 
+    catch (err) {
+        // Error messages
+        console.debug("Error:", err)
+        console.error("Error loading configuration, using the default settings");
+        console.debug("Search path:", path.resolve("./"));
+        console.debug("Config file:", path.resolve(path.join(config_folder, config_file_name)))
+        
+        config = default_config;
+    }
+
+    return config;
+
+}
 
 
 async function getConfig() {
@@ -15,10 +75,14 @@ async function getConfig() {
 }
 
 async function getJWTSecret() {
-    return config.JWT_Secret || process.env.JWT_Secret;
+    return config.auth.JWT_Secret || process.env.JWT_Secret;
 }
 
-// Default values
+async function getVersion() {
+    // Could be done with process.env.npm_package_version
+    // but may not work without without npm
+    return version;
+}
 
 // Exports
-module.exports = { getJWTSecret };
+module.exports = { loadConfig, getConfig, getVersion, getJWTSecret };