add prefix

fonctions/initDB.js

@@ -0,0 +1,52 @@
+const sqlite3 = require('sqlite3').verbose();
+require('dotenv').config();
+
+module.exports = function initDB() {
+  let db = new sqlite3.Database('db.db', sqlite3.OPEN_READWRITE | sqlite3.OPEN_CREATE, (err) => {
+    if (err) {
+      console.error(err.message);
+    }
+    console.log('Connected to the db.db database.');
+  });
+
+  db.run(`PRAGMA foreign_keys = ON;`, (err) => {
+    if (err) {
+      console.error(err.message);
+    }
+    console.log('Foreign key constraint enabled');
+  });
+
+
+  db.run(`CREATE TABLE IF NOT EXISTS prefix(
+          prefix TEXT NOT NULL DEFAULT '${process.env.DEFAULT_PREFIX}',
+          serverID TEXT NOT NULL UNIQUE
+  )`, (err) => {
+    if (err) {
+      console.error(err.message);
+    }
+    console.log('Created prefix table');
+  });
+
+  db.run(`CREATE TABLE IF NOT EXISTS users(
+    serverID TEXT NOT NULL,
+    userID TEXT NOT NULL,
+    coins INTEGER NOT NULL DEFAULT 0,
+    bank INTEGER NOT NULL DEFAULT 0,
+    xp INTEGER NOT NULL DEFAULT 0,
+    levels INTEGER NOT NULL DEFAULT 0,
+    messages INTEGER NOT NULL DEFAULT 0
+  )`, (err) => {
+    if (err) {
+      console.error(err.message);
+    }
+    console.log('Created users table');
+  });
+  
+
+  db.close((err) => {
+    if (err) {
+      console.error(err.message);
+    }
+    console.log('Close the database connection.');
+  });
+};