Refactor login flow to use auth blueprint

Moved login route and logic from app.py to application/auth/routes.py under the 'auth' blueprint. Updated all references to the login route to use 'auth.login'. Added a dedicated login.html template under application/auth/templates. Adjusted login_required utility and default_return logic for consistency.

app.py

@@ -1,17 +1,13 @@
 from flask import (
-    render_template,
     redirect,
     url_for,
-    request,
     send_from_directory,
 )
 from flask_login import (
     login_required,
     logout_user,
-    login_user,
     current_user,
 )
-from forms import LoginForm
 from models import User
 from application import db, app, login_manager
 from application.admin.routes import admin_bp
@@ -23,7 +19,7 @@ from typing import Optional
 # Config
 app.config["SECRET_KEY"] = "Stef123"
 
-login_manager.login_view = "login"  # type: ignore
+login_manager.login_view = "auth.login"  # type: ignore
 
 
 @login_manager.user_loader  # type: ignore
@@ -51,7 +47,7 @@ def default_return(next_page: Optional[str] = None):
 @app.route("/")
 @login_required
 def index():
-    return redirect(url_for("login"))
+    return redirect(url_for("auth.login"))
 
 
 @app.route("/favicon.ico")
@@ -59,25 +55,6 @@ def favicon():
     return send_from_directory("static", "favicon.ico")
 
 
-@app.route("/login", methods=["GET", "POST"])
-def login():
-    if current_user.is_authenticated:
-        return default_return()
-
-    form = LoginForm()
-    if form.validate_on_submit():
-        user = User.query.filter_by(username=form.username.data).first()
-        if user and user.check_password(password=form.password.data):
-            # User found and password correct
-            next_page = request.args.get("next")  # Get next page if given
-            login_user(user)  # Log in the user
-            return default_return(next_page=next_page)
-        else:
-            pass
-            # invalid user
-    return render_template("login.html", form=form)
-
-
 @app.route("/logout")
 @login_required
 def logout():

application/add_meal/routes.py

@@ -28,7 +28,7 @@ bp = Blueprint(
 @bp.before_request
 def login_required():
     if not current_user.is_authenticated:
-        return redirect(url_for("login"))
+        return redirect(url_for("auth.login"))
 
 
 @bp.route("/select_meal/<int:meal_type>", methods=["GET"])

application/auth/routes.py

@@ -1,13 +1,30 @@
-from flask import (
-    Blueprint,
-)
-from application.utils import login_required
+from flask import Blueprint, request, render_template
+from flask_login import current_user, login_user
+from forms import LoginForm
+from models import User
+from application.utils import default_return
 
 bp = Blueprint(
-    "user",
+    "auth",
     __name__,
     template_folder="templates",
 )
 
 
-bp.before_request(login_required)
+@bp.route("/login", methods=["GET", "POST"])
+def login():
+    if current_user.is_authenticated:
+        return default_return()
+
+    form = LoginForm()
+    if form.validate_on_submit():
+        user = User.query.filter_by(username=form.username.data).first()
+        if user and user.check_password(password=form.password.data):
+            # User found and password correct
+            next_page = request.args.get("next")  # Get next page if given
+            login_user(user)  # Log in the user
+            return default_return(next_page=next_page)
+        else:
+            pass
+            # invalid user
+    return render_template("login.html", form=form)

application/auth/templates/login.html

@@ -0,0 +1,36 @@
+{% extends "base.html" %}
+
+{% block content %}
+<div class="container d-flex justify-content-center align-items-center">
+    <div class="card shadow-sm p-4" style="width: 100%; max-width: 400px;">
+        <h3 class="mb-4 text-center">Login</h3>
+        <form method="post" novalidate>
+            {{ form.hidden_tag() }}
+
+            <div class="mb-3">
+                {{ form.username.label(class="form-label") }}
+                {{ form.username(class="form-control", placeholder="Enter username") }}
+                {% if form.username.errors %}
+                <div class="text-danger small">
+                    {{ form.username.errors[0] }}
+                </div>
+                {% endif %}
+            </div>
+
+            <div class="mb-3">
+                {{ form.password.label(class="form-label") }}
+                {{ form.password(class="form-control", placeholder="Enter password") }}
+                {% if form.password.errors %}
+                <div class="text-danger small">
+                    {{ form.password.errors[0] }}
+                </div>
+                {% endif %}
+            </div>
+
+            <div class="d-grid">
+                {{ form.submit(class="btn btn-primary btn-lg") }}
+            </div>
+        </form>
+    </div>
+</div>
+{% endblock%}

application/utils.py

@@ -1,11 +1,21 @@
 from flask_login import current_user
 from flask import redirect, url_for, flash
+from typing import Optional
 
 
 def login_required():
     if not current_user.is_authenticated:
         return redirect(url_for("auth.login"))
-    if current_user.must_change_password:
+        # if current_user.must_change_password:
         flash("You have to change your password")
         return redirect(url_for("auth.change_password"))
     return
+
+
+def default_return(next_page: Optional[str] = None):
+    return redirect(url_for("user.daily_log"))
+    if next_page:
+        return redirect(next_page)
+    if current_user.is_admin:
+        return redirect(url_for("admin.food_items"))
+    return redirect(url_for("dashboard"))

forms.py

@@ -11,7 +11,7 @@ from wtforms.validators import DataRequired, InputRequired, Optional
 class LoginForm(FlaskForm):
     username = StringField("Username", validators=[DataRequired()])
     password = PasswordField("Password", validators=[DataRequired()])
-    submit = SubmitField("Login")
+    submit = SubmitField("auth.login")
 
 
 class FoodItemForm(FlaskForm):