Add functionality to create transactions

- Transactions work against the account balance
- Needs helper functions for users
- Needs more testing

controllers/transactionController.js

@@ -0,0 +1,35 @@
+// Controller for managing transactions
+
+const { DebugBuilder } = require("../utilities/debugBuilder");
+const log = new DebugBuilder("server", "transactionController");
+
+const { TransactionStorage } = require("../libStorage");
+const transactionStorage = new TransactionStorage();
+
+const { BaseTransaction } = require("../utilities/recordHelper");
+const { withdrawBalance } = require("./accountController");
+
+exports.createTransaction = async (_provider_transaction_id, _account_id, _discord_tokens_used, _provider_tokens_used, _provider_id, callback) => {
+    if (!_provider_transaction_id && !_account_id && !_discord_tokens_used && !_provider_id) return callback(new Error("Invalid vars when creating transaction", {vars: [_provider_transaction_id, _account_id, _discord_tokens_used, _provider_id, callback]}))
+
+    const newTransaction = new BaseTransaction(_provider_transaction_id, _account_id, _discord_tokens_used, _provider_tokens_used, _provider_id, callback);
+    log.DEBUG("New Transaction Object: ", newTransaction);
+    withdrawBalance(newTransaction.discord_tokens_used, newTransaction.account_id, (err, withdrawResult) => {    
+        if (err) return callback(err, undefined);
+        
+        if (withdrawResult){
+            log.DEBUG("New withdraw result: ", withdrawResult);            
+            transactionStorage.createTransaction(newTransaction, async (err, transactionResult) =>{
+                if (err) return callback(err, undefined);
+                
+                if(transactionResult){
+                    log.DEBUG("New transaction result: ", transactionResult);
+                    return callback(undefined, transactionResult);
+                }                
+            })            
+        }
+        else {
+            return callback(undefined, undefined);
+        }   
+    });
+}