better first time xp

app.js

@@ -1,23 +1,73 @@
+const fs = require('fs');
+if (process.argv[0] == "--first-time") {
+    initialise()
+}
+
 const express = require('express');
 const showdown  = require('showdown')
 const crypto = require('crypto'); // For encrypting passwords
 const { fromUnixTime, format, getUnixTime } = require("date-fns")
-const fs = require('fs');
 
-const users = require('./users.js');
-const posts = require('./posts.js');
-const comments = require('./comments.js');
-const config = require('./config.js');
-let converter = new showdown.Converter({simpleLineBreaks: true, tables: true, strikethrough: true, tasklists: true, encodeEmails: true})
+let users
+let posts
+let comments
+let config
+
+try {
+    users = require('./users.js');
+    posts = require('./posts.js');
+    comments = require('./comments.js');
+    config = require('./config.js');
+}
+catch (error) {
+    console.log("A file is missing!")
+    console.log("Run with --first-time to initialise the program")
+    console.log("Error output:\n", error)
+    process.exit(1)
+}
+let converter = new showdown.Converter({
+    simpleLineBreaks: true, 
+    tables: true, 
+    strikethrough: true, 
+    tasklists: true, 
+    encodeEmails: true
+})
 const app = express();
+
 let footer_div = config.site_wide_footer
 footer_div = replace_format_indicators(footer_div)
 
-
 app.use(express.urlencoded({ extended: true }));
 app.use(express.json());
 app.use(express.static(config.root_path));
 
+function initialise() {
+    try {
+        const users = require("./users.js");
+    }
+    catch (error) {
+        fs.writeFileSync(`${__dirname}/users.js`, `export const users = []`)
+    }
+    try {
+        const posts = require("./posts.js");
+    }
+    catch (error) {
+        fs.writeFileSync(`${__dirname}/posts.js`, `export const posts = []`)
+    }
+    try {
+        const users = require("./comments.js");
+    }
+    catch (error) {
+        fs.writeFileSync(`${__dirname}/comments.js`, `export const comments = []\nexport const counter = 0`)
+    }
+    try {
+        const users = require("./config.js");
+    }
+    catch (error) {
+        fs.copyFile('example-config.js', 'config.js')
+    }
+}
+
 function get_userID(username) {
 	for (let i = 0; i < users.users.length; i++) {
 		if (users.users[i]['username'] == username) {