Refactor: routes: Modularize routes into blueprints

interbend/routes/transaction_routes.py

@@ -0,0 +1,57 @@
+from flask import Blueprint
+from interbend.db import db, get_user
+from interbend.auth import *
+import mysql.connector
+
+transactions_bp = Blueprint('transactions_bp', __name__)
+
+@transactions_bp.route('/balance', methods=['GET'])
+def get_balance():
+    bid = request.args.get('bid')
+    user = get_user(bid)
+    if not user:
+        return jsonify({"error": "User not found."}), 404
+    return jsonify({"balance": user["balance"]})
+
+@transactions_bp.route('/transfer', methods=['POST'])
+@jwt_required
+def transfer():
+    # Ignore warning because its dynamically added via jwt required.
+    user_bid = request.bid
+    data = request.get_json()
+    fbid = data.get('from')
+    tbid = data.get('to')
+    amount = data.get('amount')
+    if not tbid or not amount:
+        return jsonify({"error": "To and amount are required"}), 400
+    if not fbid:
+        fbid = user_bid
+    if fbid != user_bid:
+        return jsonify({"error": "Unauthorized transfer from another account"}), 401
+    try:
+        amount = float(amount)
+        if amount <= 0:
+            raise ValueError
+    except ValueError:
+        return jsonify({"error": "Invalid amount","message":"Try to request Money instead"}), 400
+    sender = get_user(fbid)
+    receiver = get_user(tbid)
+    if not sender or not receiver:
+        return jsonify({"error":"User not found"}), 404
+    if sender["balance"] < amount:
+        return jsonify({"error": "Insufficient funds"}), 400
+    try:
+        db.start_transaction()
+        with db.cursor(dictionary=True) as cur:
+            cur.execute("UPDATE users SET balance = balance - %s WHERE bid = %s", (amount, fbid))
+            cur.execute("UPDATE users SET balance = balance + %s WHERE bid = %s", (amount, tbid))
+        db.commit()
+        return jsonify({"message": "Transfer successful"}), 200
+    except mysql.connector.Error as err:
+        db.rollback()
+        print(f"Transactional Error: {err}")
+        return jsonify({"error": "A database error occurred during the transfer."}), 500
+
+@transactions_bp.route('/collect', methods=['POST'])
+def collect_salary():
+    return jsonify({"message":"no implementation"}), 501