Refactor codebase

app/routes/auth.py

@@ -1,6 +1,7 @@
 from flask import Blueprint, render_template, request, redirect, url_for, session, flash
 from werkzeug.security import generate_password_hash, check_password_hash
-from app.db import query_one, execute_returning, execute
+from app.db import query_one, execute_returning
+from app.utils import parse_profile_fields
 
 bp = Blueprint("auth", __name__)
 
@@ -10,13 +11,7 @@ def signup():
     if request.method == "POST":
         username = request.form.get("username", "").strip()
         password = request.form.get("password", "")
-        display_name = request.form.get("display_name", "").strip()
-        height_cm = request.form.get("height_cm") or None
-        age = request.form.get("age") or None
-        gender = request.form.get("gender") or None
-        goal_weight_kg = request.form.get("goal_weight_kg") or None
-        starting_weight_kg = request.form.get("starting_weight_kg") or None
-        is_private = request.form.get("is_private") == "on"
+        fields = parse_profile_fields(request.form)
 
         # Validation
         if not username or not password:
@@ -38,7 +33,11 @@ def signup():
         user = execute_returning(
             """INSERT INTO users (username, password_hash, display_name, height_cm, age, gender, goal_weight_kg, starting_weight_kg, is_private)
                VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s) RETURNING id""",
-            (username, password_hash, display_name or username, height_cm, age, gender, goal_weight_kg, starting_weight_kg, is_private),
+            (username, password_hash,
+             fields["display_name"] or username,
+             fields["height_cm"], fields["age"], fields["gender"],
+             fields["goal_weight_kg"], fields["starting_weight_kg"],
+             fields["is_private"]),
         )
 
         session["user_id"] = user["id"]