.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/admin-panel.iml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="Flask">
+    <option name="enabled" value="true" />
+  </component>
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.venv" />
+    </content>
+    <orderEntry type="jdk" jdkName="Python 3.11 (admin-panel)" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+  <component name="TemplatesService">
+    <option name="TEMPLATE_CONFIGURATION" value="Jinja2" />
+    <option name="TEMPLATE_FOLDERS">
+      <list>
+        <option value="$MODULE_DIR$/templates" />
+      </list>
+    </option>
+  </component>
+</module>

.idea/inspectionProfiles/profiles_settings.xml

@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Black">
+    <option name="sdkName" value="Python 3.11 (admin-panel)" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/admin-panel.iml" filepath="$PROJECT_DIR$/.idea/admin-panel.iml" />
+    </modules>
+  </component>
+</project>

Dockerfile

@@ -1,30 +1,18 @@
-# Use an official Python runtime as a base
+FROM python:3.11-slim-buster
-FROM python:3.11-slim-bookworm
 
-# Set working directory
+# Install build dependencies (build-essential provides gcc and other tools)
-WORKDIR /app
+RUN apt-get update && apt-get install -y build-essential
 
-# Install system dependencies
+WORKDIR /rideaware_landing
-RUN apt-get update && apt-get install -y \
-    build-essential \
-    libpq-dev \
-    && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements first to leverage Docker cache
 COPY requirements.txt .
 
-# Install Python dependencies
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy application code
 COPY . .
 
-# Environment variables
+ENV FLASK_APP=server.py
-ENV FLASK_APP=app.py
-ENV FLASK_ENV=production
-ENV ENVIRONMENT=production
 
 EXPOSE 5001
 
-# Use Gunicorn as production server
+CMD ["gunicorn", "--bind", "0.0.0.0:5001", "app:app"]
-CMD ["gunicorn", "--bind", "0.0.0.0:5001", "--workers", "4", "--timeout", "120", "app:app"]

README.md

@@ -1,87 +1,57 @@
 # RideAware Admin Center
 
-This project provides a secure and user-friendly Admin Panel for managing RideAware subscribers and sending update emails. It's designed to work in conjunction with the RideAware landing page application, utilizing a shared database for subscriber management.
+This project provides an Admin Center for managing the RideAware subscriber list. It connects to the same SQLite database (`subscribers.db`) used by the landing page app (running on port 5000) and allows an administrator to:
+
+- View all currently subscribed email addresses.
+- Send overview update emails to all subscribers.
+- Unsubscribe emails via the landing page app.
+
+The Admin Center is protected by a login page, and admin credentials (with a salted/hashed password) are stored in the `admin_users` table within the same database.
 
 ## Features
 
+- **Admin Login:**  
+  Secure login using salted and hashed passwords (via Werkzeug security utilities).
 
-**Secure Admin Authentication:**
+- **Subscriber List:**  
+  View all email addresses currently stored in the `subscribers` table.
 
-* Login protected by username/password authentication using Werkzeug's password hashing.
+- **Email Updates:**  
-* Default admin credentials configurable via environment variables.
+  A form for sending update emails (HTML allowed) to the subscriber list using SMTP.
 
-**Subscriber Management:**
+- **Shared Database:**  
-* View a comprehensive list of all subscribed email addresses.
+  Both the landing page app (port 5000) and Admin Center (port 5001) connect to the same `subscribers.db`.
 
-**Email Marketing:**
+## Setup & Running
-* Compose and send HTML-rich update emails to all subscribers.
-* Supports embedding unsubscribe links in email content for easy opt-out.
-
-**Shared Database:**
-* Utilizes a shared PostgreSQL database with the landing page application for consistent subscriber data.
-
-**Centralized Newsletter Storage:**
-* Storage of newsletter subject and email bodies in the PostgreSQL database
-
-**Logging:**
-* Implemented comprehensive logging throughout the application for better monitoring and debugging.
-
-## Architecture
-
-The Admin Panel is built using Python with the Flask web framework, using the following technologies:
-
-*   **Backend:** Python 3.11+, Flask
-*   **Database:** PostgreSQL
-*   **Template Engine:** Jinja2
-*   **Authentication:** Werkzeug Security
-*   **Email:** SMTP (using `smtplib`)
-*   **Containerization:** Docker
-*   **Configuration:** .env file using `python-dotenv`
-
-## Setup & Deployment
 
 ### Prerequisites
 
-*   Docker (recommended for containerized deployment)
+- Docker (for containerized deployment)
-*   Python 3.11+ (if running locally without Docker)
+- Python 3.11+ (if running locally without Docker)
-*   A PostgreSQL database instance
+- An SMTP account (e.g., Spacemail) for sending emails
-*   An SMTP account (e.g., SendGrid, Mailgun) for sending emails
+- A `.env` file with configuration details
-*   A `.env` file with configuration details
 
 ### .env Configuration
 
-Create a `.env` file in the project root directory with the following environment variables.  Make sure to replace the placeholder values with your actual credentials.
+Create a `.env` file in the project root with the following example variables:
 
 ```env
-# Flask Application
+# SMTP settings (shared with the landing page app)
-SECRET_KEY="YourSecretKeyHere" #Used to sign session cookies
+SMTP_SERVER=<email server>
+SMTP_PORT=<email port>
+SMTP_USER=<email username>
+SMTP_PASSWORD=<email password>
 
-# PostgreSQL Database Configuration
+# Database file
-PG_HOST=localhost
+DATABASE_FILE=subscribers.db
-PG_PORT=5432
-PG_DATABASE=rideaware_db
-PG_USER=rideaware_user
-PG_PASSWORD=rideaware_password
 
 # Admin credentials for the Admin Center
 ADMIN_USERNAME=admin
 ADMIN_PASSWORD="changeme"  # Change this to a secure password
-
+ADMIN_SECRET_KEY="your_super_secret_key"
-# SMTP Email Settings
-SMTP_SERVER=smtp.example.com
-SMTP_PORT=465 #Or another appropriate port
-SMTP_USER=your_email@example.com
-SMTP_PASSWORD=YourEmailPassword
-SENDER_EMAIL=your_email@example.com #Email to send emails from
-BASE_URL="your_site_domain.com" # used for unsubscribe links, example.com not https://
-
-#Used for debugging
-FLASK_DEBUG=1
 ```
 
-### Running with Docker (Recommended)
+### Running with Docker
-
-This is the recommended approach for deploying the RideAware Admin Panel
 
 Building the Docker image:
 ```sh
@@ -93,35 +63,18 @@ Running the container mapping port 5001:
 docker run -p 5001:5001 admin-panel
 ```
 
-The application will be accessible at `http://localhost:5001` or `http://<your_server_ip>:5001`
+The app will be accessible at http://ip-address-here:5001
-
-*Note: When running locally with Docker, ensure the .env file is located at the project root. Alternatively, you can pass the variables in the CLI.*
 
 ### Running locally
-
+Install the dependencies using **requirements.txt**:
-Install Dependencies:
 
 ```sh
 pip install -r requirements.txt
 ```
 
-Set Environment Variables:
-
-Ensure all the environment variables specified in the `.env` configuration section are set in your shell environment. You can source the `.env` file:
-
-
 Then run the admin app:
 ```sh
 python app.py
 ```
 
-The app will be accessible at `http://127.0.0.1:5001`
+The app will be accessible at http://ip-address-here:5001
-
-### Contributing
-
-Contributions to the RideAware Admin Panel are welcome! Please follow these steps:
-
-* Fork the repository.
-* Create a new branch for your feature or bug fix.
-* Make your changes and commit them with descriptive commit messages.
-* Submit a pull request.

app.py

@@ -1,9 +1,7 @@
 import os
+import logging
 import smtplib
 from email.mime.text import MIMEText
-from functools import wraps
-from urllib.parse import urlparse, urljoin
-
 from flask import (
     Flask,
     render_template,
@@ -13,222 +11,135 @@ from flask import (
     flash,
     session,
 )
-from markupsafe import escape
 from dotenv import load_dotenv
 from werkzeug.security import check_password_hash
-
+from functools import wraps  # Import wraps
-from database import (
+from database import get_connection, init_db, get_all_emails, get_admin, create_default_admin
-    get_connection,
-    init_db,
-    get_all_emails,
-    get_admin,
-    create_default_admin,
-)
 
 load_dotenv()
-
 app = Flask(__name__)
 app.secret_key = os.getenv("SECRET_KEY")
-base_url = os.getenv("BASE_URL", "").strip().strip("/")
+base_url = os.getenv("BASE_URL")
 
+# SMTP settings (for sending update emails)
 SMTP_SERVER = os.getenv("SMTP_SERVER")
 SMTP_PORT = int(os.getenv("SMTP_PORT", 465))
 SMTP_USER = os.getenv("SMTP_USER")
 SMTP_PASSWORD = os.getenv("SMTP_PASSWORD")
-SENDER_EMAIL = os.getenv("SENDER_EMAIL", SMTP_USER)
+SENDER_EMAIL = os.getenv("SENDER_EMAIL", SMTP_USER) # Use SENDER_EMAIL
 
+# Logging setup
+logging.basicConfig(
+    level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s"
+)
+logger = logging.getLogger(__name__)
+
+# Initialize the database and create default admin user if necessary.
 init_db()
 create_default_admin()
 
-
+# Decorator for requiring login
 def login_required(f):
-    @wraps(f)
+    @wraps(f)  # Use wraps to preserve function metadata
     def decorated_function(*args, **kwargs):
         if "username" not in session:
-            next_url = request.full_path if request.query_string else request.path
+            return redirect(url_for("login"))
-            return redirect(url_for("login", next=next_url))
         return f(*args, **kwargs)
 
     return decorated_function
 
 
-def get_dashboard_counts():
+def send_update_email(subject, body, email):
-    """Return dict of counts: total subscribers, total newsletters, sent today."""
+    """Sends email, returns True on success, False on failure."""
-    counts = {"total_subscribers": 0, "total_newsletters": 0, "sent_today": 0}
-    try:
-        conn = get_connection()
-        cur = conn.cursor()
-        cur.execute("SELECT COUNT(*) FROM subscribers")
-        counts["total_subscribers"] = cur.fetchone()[0] or 0
-
-        cur.execute("SELECT COUNT(*) FROM newsletters")
-        counts["total_newsletters"] = cur.fetchone()[0] or 0
-
-        cur.execute(
-            """
-            SELECT COUNT(*)
-            FROM newsletters
-            WHERE sent_at::date = CURRENT_DATE
-            """
-        )
-        counts["sent_today"] = cur.fetchone()[0] or 0
-
-        cur.close()
-        conn.close()
-    except Exception:
-        pass
-    return counts
-
-
-def is_safe_url(target: str) -> bool:
-    if not target:
-        return False
-    ref = urlparse(request.host_url)
-    test = urlparse(urljoin(request.host_url, target))
-    return test.scheme in ("http", "https") and ref.netloc == test.netloc
-
-
-def send_update_email(subject: str, body_html: str, email: str) -> bool:
-    """Send a single HTML email with retries."""
-    max_retries = 3
-    retry_count = 0
-
-    unsub_link = ""
-    if base_url:
-        unsub_link = f"https://{base_url}/unsubscribe?email={email}"
-
-    if unsub_link:
-        custom_body = (
-            f"{body_html}"
-            f"<br><br>"
-            f"If you ever wish to unsubscribe, please click "
-            f"<a href='{unsub_link}'>here</a>."
-        )
-    else:
-        custom_body = body_html
-
-    while retry_count < max_retries:
     try:
         server = smtplib.SMTP_SSL(SMTP_SERVER, SMTP_PORT, timeout=10)
-            server.set_debuglevel(0)
+        server.set_debuglevel(False)  # Keep debug level at False for production
         server.login(SMTP_USER, SMTP_PASSWORD)
 
+        unsub_link = f"https://{base_url}/unsubscribe?email={email}"
+        custom_body = (
+            f"{body}<br><br>"
+            f"If you ever wish to unsubscribe, please click <a href='{unsub_link}'>here</a>"
+        )
+
         msg = MIMEText(custom_body, "html", "utf-8")
         msg["Subject"] = subject
-            msg["From"] = SENDER_EMAIL
+        msg["From"] = SENDER_EMAIL  # Use sender email
         msg["To"] = email
 
-            server.sendmail(SENDER_EMAIL, [email], msg.as_string())
+        server.sendmail(SENDER_EMAIL, email, msg.as_string())  # Use sender email
+
         server.quit()
+        logger.info(f"Update email sent to: {email}")
         return True
-        except Exception:
+    except Exception as e:
-            retry_count += 1
+        logger.error(f"Failed to send email to {email}: {e}")
-            if retry_count >= max_retries:
-                break
-            import time
-
-            time.sleep(1.0)
-
         return False
 
 
-def process_send_update_email(subject: str, body_html: str) -> str:
+def process_send_update_email(subject, body):
-    """Send update email to all subscribers and log newsletter content."""
+    """Helper function to send an update email to all subscribers."""
-    try:
     subscribers = get_all_emails()
     if not subscribers:
         return "No subscribers found."
-
-        failures = []
-        for email in subscribers:
-            if not send_update_email(subject, body_html, email):
-                failures.append(email)
-
     try:
+        for email in subscribers:
+            if not send_update_email(subject, body, email):
+                return f"Failed to send to {email}"  # Specific failure message
+
+        # Log newsletter content for audit purposes
         conn = get_connection()
         cursor = conn.cursor()
         cursor.execute(
-                "INSERT INTO newsletters (subject, body) VALUES (%s, %s)",
+            "INSERT INTO newsletters (subject, body) VALUES (%s, %s)", (subject, body)
-                (subject, body_html),
         )
         conn.commit()
         cursor.close()
         conn.close()
-        except Exception:
-            pass
 
-        if failures:
-            return f"Sent with failures: {len(failures)} recipients failed."
         return "Email has been sent to all subscribers."
     except Exception as e:
+        logger.exception("Error processing sending updates")
         return f"Failed to send email: {e}"
 
 
-@app.route("/", methods=["GET"])
+@app.route("/")
 @login_required
 def index():
-    """Dashboard: list subscriber emails and show widgets."""
+    """Displays all subscriber emails"""
-    emails = []
-    try:
     emails = get_all_emails()
-    except Exception:
+    return render_template("admin_index.html", emails=emails)
-        flash("Could not load subscribers right now.", "danger")
-
-    counts = get_dashboard_counts()
-    return render_template("admin_index.html", emails=emails, counts=counts)
-
 
 @app.route("/send_update", methods=["GET", "POST"])
 @login_required
 def send_update():
+    """Display a form to send an update email; process submission on POST."""
     if request.method == "POST":
-        subject = (request.form.get("subject") or "").strip()
+        subject = request.form["subject"]
-        body_html = request.form.get("body") or ""
+        body = request.form["body"]
-
+        result_message = process_send_update_email(subject, body)
-        if not subject or not body_html:
+        flash(result_message)
-            flash("Subject and body are required", "danger")
         return redirect(url_for("send_update"))
-
-        result_message = process_send_update_email(subject, body_html)
-        flash(escape(result_message))
-        return redirect(url_for("send_update"))
-
     return render_template("send_update.html")
 
 
 @app.route("/login", methods=["GET", "POST"])
 def login():
     if request.method == "POST":
-        username = (request.form.get("username") or "").strip()
+        username = request.form.get("username")
-        password = (request.form.get("password") or "").strip()
+        password = request.form.get("password")
-
-        if not username or not password:
-            flash("Username and password are required", "danger")
-            return redirect(url_for("login"))
-
         admin = get_admin(username)
         if admin and check_password_hash(admin[1], password):
             session["username"] = username
-            session.permanent = True
-            app.config["SESSION_COOKIE_HTTPONLY"] = True
-            app.config["SESSION_COOKIE_SECURE"] = True
-            app.config["SESSION_COOKIE_SAMESITE"] = "Lax"
-
-            next_url = request.args.get("next")
-            if next_url and is_safe_url(next_url):
-                flash("Logged in successfully", "success")
-                return redirect(next_url)
-
             flash("Logged in successfully", "success")
             return redirect(url_for("index"))
         else:
             flash("Invalid username or password", "danger")
             return redirect(url_for("login"))
-
     return render_template("login.html")
 
 
-@app.route("/logout", methods=["GET"])
+@app.route("/logout")
 def logout():
     session.pop("username", None)
     flash("Logged out successfully", "success")
@@ -236,9 +147,4 @@ def logout():
 
 
 if __name__ == "__main__":
-    is_prod = os.getenv("ENVIRONMENT", "development").lower() == "production"
+    app.run(port=5001, debug=True)
-    app.config["PREFERRED_URL_SCHEME"] = "https" if is_prod else "http"
-    if is_prod:
-        app.run(host="0.0.0.0", port=5001, debug=False, use_reloader=False)
-    else:
-        app.run(host="0.0.0.0", port=5001, debug=True, use_reloader=True)

database.py

@@ -1,18 +1,23 @@
 import os
+import logging
 import psycopg2
-from psycopg2 import IntegrityError, pool, OperationalError
+from psycopg2 import IntegrityError
 from dotenv import load_dotenv
 from werkzeug.security import generate_password_hash
 
 load_dotenv()
 
-try:
+# Logging setup
-    DB_MIN_CONN = int(os.getenv("DB_MIN_CONN", 1))
+logging.basicConfig(
-    DB_MAX_CONN = int(os.getenv("DB_MAX_CONN", 10))
+    level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s"
+)
+logger = logging.getLogger(__name__)
 
-    conn_pool = pool.ThreadedConnectionPool(
+
-        minconn=DB_MIN_CONN,
+def get_connection():
-        maxconn=DB_MAX_CONN,
+    """Return a new connection to the PostgreSQL database."""
+    try:
+        conn = psycopg2.connect(
             host=os.getenv("PG_HOST"),
             port=os.getenv("PG_PORT"),
             dbname=os.getenv("PG_DATABASE"),
@@ -20,25 +25,20 @@ try:
             password=os.getenv("PG_PASSWORD"),
             connect_timeout=10,
         )
-except OperationalError:
+        return conn
+    except Exception as e:
+        logger.error(f"Database connection error: {e}")
         raise
-except Exception:
-    raise
-
-
-def get_connection():
-    """Get a connection from the connection pool."""
-    return conn_pool.getconn()
 
 
 def init_db():
-    """Initialize database tables with connection pool."""
+    """Initialize the database tables."""
     conn = None
-    cursor = None
     try:
         conn = get_connection()
         cursor = conn.cursor()
 
+        # Create subscribers table (if not exists)
         cursor.execute(
             """
             CREATE TABLE IF NOT EXISTS subscribers (
@@ -48,6 +48,7 @@ def init_db():
         """
         )
 
+        # Create admin_users table (if not exists)
         cursor.execute(
             """
             CREATE TABLE IF NOT EXISTS admin_users (
@@ -58,6 +59,7 @@ def init_db():
         """
         )
 
+        # Newsletter storage
         cursor.execute(
             """
         CREATE TABLE IF NOT EXISTS newsletters (
@@ -70,81 +72,78 @@ def init_db():
         )
 
         conn.commit()
-    except Exception:
+        logger.info("Database initialized successfully.")
+    except Exception as e:
+        logger.error(f"Database initialization error: {e}")
         if conn:
-            conn.rollback()
+            conn.rollback()  # Rollback if there's an error
+
         raise
     finally:
-        if cursor:
-            cursor.close()
         if conn:
-            conn_pool.putconn(conn)
+            cursor.close()
+            conn.close()
 
 
 def get_all_emails():
     """Return a list of all subscriber emails."""
-    conn = None
-    cursor = None
     try:
         conn = get_connection()
         cursor = conn.cursor()
         cursor.execute("SELECT email FROM subscribers")
         results = cursor.fetchall()
-        return [row[0] for row in results]
+        emails = [row[0] for row in results]
-    except Exception:
+        logger.debug(f"Retrieved emails: {emails}")
+        return emails
+    except Exception as e:
+        logger.error(f"Error retrieving emails: {e}")
         return []
     finally:
-        if cursor:
-            cursor.close()
         if conn:
-            conn_pool.putconn(conn)
+            cursor.close()
+            conn.close()
 
 
 def add_email(email):
     """Insert an email into the subscribers table."""
     conn = None
-    cursor = None
     try:
         conn = get_connection()
         cursor = conn.cursor()
         cursor.execute("INSERT INTO subscribers (email) VALUES (%s)", (email,))
         conn.commit()
+        logger.info(f"Email {email} added successfully.")
         return True
     except IntegrityError:
-        if conn:
+        logger.warning(f"Attempted to add duplicate email: {email}")
-            conn.rollback()
         return False
-    except Exception:
+    except Exception as e:
-        if conn:
+        logger.error(f"Error adding email {email}: {e}")
-            conn.rollback()
         return False
     finally:
-        if cursor:
-            cursor.close()
         if conn:
-            conn_pool.putconn(conn)
+            cursor.close()
+            conn.close()
 
 
 def remove_email(email):
     """Remove an email from the subscribers table."""
     conn = None
-    cursor = None
     try:
         conn = get_connection()
         cursor = conn.cursor()
         cursor.execute("DELETE FROM subscribers WHERE email = %s", (email,))
         rowcount = cursor.rowcount
         conn.commit()
+        logger.info(f"Email {email} removed successfully.")
         return rowcount > 0
-    except Exception:
+    except Exception as e:
-        if conn:
+        logger.error(f"Error removing email {email}: {e}")
-            conn.rollback()
         return False
     finally:
-        if cursor:
-            cursor.close()
         if conn:
-            conn_pool.putconn(conn)
+            cursor.close()
+            conn.close()
 
 
 def get_admin(username):
@@ -152,7 +151,6 @@ def get_admin(username):
     Returns a tuple (username, password_hash) if found, otherwise None.
     """
     conn = None
-    cursor = None
     try:
         conn = get_connection()
         cursor = conn.cursor()
@@ -160,14 +158,15 @@ def get_admin(username):
             "SELECT username, password FROM admin_users WHERE username = %s",
             (username,),
         )
-        return cursor.fetchone()
+        result = cursor.fetchone()
-    except Exception:
+        return result  # (username, password_hash)
+    except Exception as e:
+        logger.error(f"Error retrieving admin: {e}")
         return None
     finally:
-        if cursor:
-            cursor.close()
         if conn:
-            conn_pool.putconn(conn)
+            cursor.close()
+            conn.close()
 
 
 def create_default_admin():
@@ -175,60 +174,30 @@ def create_default_admin():
     default_username = os.getenv("ADMIN_USERNAME", "admin")
     default_password = os.getenv("ADMIN_PASSWORD", "changeme")
     hashed_password = generate_password_hash(default_password, method="pbkdf2:sha256")
-
     conn = None
-    cursor = None
     try:
         conn = get_connection()
         cursor = conn.cursor()
 
+        # Check if the admin already exists
         cursor.execute(
             "SELECT id FROM admin_users WHERE username = %s", (default_username,)
         )
-        exists = cursor.fetchone()
+        if cursor.fetchone() is None:
-        if exists is None:
             cursor.execute(
                 "INSERT INTO admin_users (username, password) VALUES (%s, %s)",
                 (default_username, hashed_password),
             )
             conn.commit()
-    except Exception:
+            logger.info("Default admin created successfully")
+        else:
+            logger.info("Default admin already exists")
+    except Exception as e:
+        logger.error(f"Error creating default admin: {e}")
         if conn:
             conn.rollback()
     finally:
-        if cursor:
-            cursor.close()
         if conn:
-            conn_pool.putconn(conn)
+            cursor.close()
+            conn.close()
 
-
-def close_pool():
-    """Close the database connection pool."""
-    try:
-        conn_pool.closeall()
-    except Exception:
-        pass
-
-
-class DatabaseContext:
-    """Optional context manager for manual transactions."""
-    def __init__(self):
-        self.conn = None
-        self.cursor = None
-
-    def __enter__(self):
-        self.conn = get_connection()
-        self.cursor = self.conn.cursor()
-        return self.cursor
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        try:
-            if exc_type:
-                self.conn.rollback()
-            else:
-                self.conn.commit()
-        finally:
-            if self.cursor:
-                self.cursor.close()
-            if self.conn:
-                conn_pool.putconn(self.conn)

requirements.txt

@@ -3,6 +3,3 @@ flask
 python-dotenv
 Werkzeug
 psycopg2-binary
-psycopg2-pool
-python-decouple
-markupsafe

static/css/style.css

@@ -1,306 +1,55 @@
-:root {
-  --primary: #2563eb;
-  --primary-hover: #1d4ed8;
-  --bg: #f5f7fb;
-  --bg-grad-1: #f8fbff;
-  --bg-grad-2: #eef3fb;
-  --surface: #ffffff;
-  --text: #0f172a;
-  --muted: #64748b;
-  --border: #e5e7eb;
-  --ring: rgba(37, 99, 235, 0.25);
-  --radius: 14px;
-  --shadow-1: 0 8px 24px rgba(15, 23, 42, 0.08);
-  --shadow-2: 0 14px 38px rgba(15, 23, 42, 0.12);
-}
-
-*,
-*::before,
-*::after {
-  box-sizing: border-box;
-}
-html, body {
-  margin: 0;
-  padding: 0;
-}
 body {
-  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
+    font-family: Arial, sans-serif;
-  color: var(--text);
-  background: radial-gradient(1000px 650px at 0% 0%, var(--bg-grad-1), transparent 60%),
-              radial-gradient(900px 600px at 100% 0%, var(--bg-grad-2), transparent 55%),
-              var(--bg);
-  min-height: 100vh;
-}
-
-.navbar {
-  position: sticky;
-  top: 0;
-  z-index: 1000;
-  background: rgba(255, 255, 255, 0.8);
-  backdrop-filter: blur(10px);
-  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
-}
-.navbar-content {
-  max-width: 1100px;
-  margin: 0 auto;
-  padding: 14px 20px;
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-}
-.brand {
-  color: var(--text);
-  font-weight: 700;
-  text-decoration: none;
-  letter-spacing: 0.2px;
-}
-.navbar-links a {
-  color: var(--muted);
-  text-decoration: none;
-  margin-left: 14px;
-  padding: 8px 12px;
-  border-radius: 10px;
-  transition: all 0.2s ease;
-}
-.navbar-links a:hover {
-  color: var(--text);
-  background: rgba(15, 23, 42, 0.05);
-}
-.navbar-links .logout {
-  color: #b91c1c;
-}
-.navbar-links .logout:hover {
-  background: rgba(185, 28, 28, 0.08);
-}
-
-.container {
-  max-width: 1100px;
-  margin: 28px auto 48px;
-  padding: 0 20px;
-  padding-bottom: 64px;
-}
-
-.footer {
-  position: fixed;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  z-index: 1000;
-  border-top: 1px solid rgba(15, 23, 42, 0.06);
-  background: rgba(255, 255, 255, 0.92);
-  backdrop-filter: blur(8px);
-}
-
-.footer-inner {
-  max-width: 1100px;
-  margin: 0 auto;
-  padding: 14px 20px;
-  color: var(--muted);
-  font-size: 14px;
-}
-
-.page-header {
-  margin-bottom: 18px;
-  display: flex;
-  align-items: end;
-  justify-content: space-between;
-  gap: 12px;
-  flex-wrap: wrap;
-}
-.page-title {
-  margin: 0 0 4px 0;
-  font-size: 26px;
-  font-weight: 700;
-}
-.page-subtitle {
-  margin: 0;
-  color: var(--muted);
-  font-size: 14px;
-}
-.page-actions {
-  display: flex;
-  gap: 10px;
-}
-
-.card {
-  background: var(--surface);
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  box-shadow: var(--shadow-1);
     padding: 20px;
-}
-.empty-state {
-  text-align: center;
-  color: var(--muted);
-}
-
-.widgets {
-  display: grid;
-  grid-template-columns: repeat(3, minmax(0, 1fr));
-  gap: 16px;
-  margin-bottom: 18px;
-}
-.widget-card {
-  background: linear-gradient(180deg, #fff, #fafcff);
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  box-shadow: var(--shadow-1);
-  padding: 18px;
-}
-.widget-label {
-  color: var(--muted);
-  font-weight: 600;
-  font-size: 13px;
-  margin-bottom: 8px;
-}
-.widget-value {
-  font-size: 28px;
-  font-weight: 800;
-  letter-spacing: 0.3px;
-  color: var(--text);
-}
-
-.table-wrap {
-  overflow: hidden;
-  border-radius: 12px;
-  border: 1px solid var(--border);
-}
-.table {
-  width: 100%;
-  border-collapse: collapse;
-  background: transparent;
-}
-.table thead th {
-  text-align: left;
-  font-weight: 600;
-  color: var(--muted);
-  font-size: 13px;
-  letter-spacing: 0.3px;
-  background: #f9fafb;
-  padding: 12px 14px;
-  border-bottom: 1px solid var(--border);
-}
-.table tbody td {
-  padding: 14px;
-  border-bottom: 1px solid #f1f5f9;
-}
-.table tbody tr:hover td {
-  background: #f9fbff;
-  transition: background 0.15s ease;
-}
-
-.form {
-  display: grid;
-  gap: 16px;
-}
-.form-group {
-  display: grid;
-  gap: 8px;
-}
-.form-group label {
-  font-weight: 600;
-  color: #334155;
-  font-size: 14px;
-}
-.form-group input,
-.form-group textarea {
-  width: 100%;
-  color: var(--text);
-  background: #ffffff;
-  border: 1px solid var(--border);
-  border-radius: 12px;
-  padding: 12px 14px;
-  font-size: 15px;
-  transition: box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
-}
-.form-group textarea {
-  resize: vertical;
-  min-height: 160px;
-}
-.form-group input:focus,
-.form-group textarea:focus {
-  outline: none;
-  border-color: #a7c2ff;
-  box-shadow: 0 0 0 4px var(--ring);
-  background: #ffffff;
-}
-.form-actions {
-  display: flex;
-  gap: 10px;
-  justify-content: flex-end;
-}
-
-.button {
-  appearance: none;
-  border: 1px solid var(--border);
-  background: #ffffff;
-  color: var(--text);
-  border-radius: 12px;
-  padding: 10px 14px;
-  cursor: pointer;
-  font-weight: 600;
-  transition: transform 0.05s ease, background 0.2s ease, border 0.2s ease;
-}
-.button:hover {
-  background: #f5f7fb;
-}
-.button:active {
-  transform: translateY(1px);
-}
-.button-primary {
-  color: #ffffff;
-  background: linear-gradient(180deg, #3b82f6, var(--primary));
-  border-color: rgba(37, 99, 235, 0.4);
-}
-.button-primary:hover {
-  background: linear-gradient(180deg, #2f74ed, var(--primary-hover));
-}
-.button-secondary {
-  background: #ffffff;
-}
-
-.flash-stack {
-  display: grid;
-  gap: 10px;
-  margin-bottom: 18px;
-}
-.flash {
-  border-radius: 12px;
-  padding: 12px 14px;
-  font-weight: 600;
-  border: 1px solid var(--border);
-  background: #ffffff;
-}
-.flash-success {
-  border-color: #a7f3d0;
-  background: #ecfdf5;
-  color: #065f46;
-}
-.flash-danger,
-.flash-error {
-  border-color: #fecaca;
-  background: #fef2f2;
-  color: #991b1b;
-}
-.flash-warning {
-  border-color: #fde68a;
-  background: #fffbeb;
-  color: #92400e;
-}
-
-.auth-wrapper {
-  display: grid;
-  place-items: center;
-  min-height: calc(100vh - 120px);
-  padding-top: 40px;
-}
-.auth-card {
-  max-width: 420px;
-  width: 100%;
-}
-
-@media (max-width: 900px) {
-  .widgets {
-    grid-template-columns: 1fr;
   }
-}
+  
+  table {
+    border-collapse: collapse;
+    width: 100%;
+  }
+  
+  th,
+  td {
+    border: 1px solid #ddd;
+    padding: 8px;
+    text-align: left;
+  }
+  
+  th {
+    background-color: #f2f2f2;
+  }
+  
+  a {
+    margin-right: 10px;
+  }
+  
+  form {
+    max-width: 600px;
+    margin: 0 auto;
+  }
+  
+  label {
+    display: block;
+    margin-top: 15px;
+  }
+  
+  input[type="text"],
+  input[type="password"],
+  textarea {
+    width: 100%;
+    padding: 8px;
+  }
+  
+  button {
+    margin-top: 15px;
+    padding: 10px 20px;
+  }
+  
+  .flash {
+    background-color: #f8d7da;
+    color: #721c24;
+    padding: 10px;
+    margin-bottom: 10px;
+    text-align: center;
+  }
+  

templates/admin_index.html

@@ -1,35 +1,29 @@
-{% extends "base.html" %}
+<!DOCTYPE html>
-{% block title %}Dashboard{% endblock %}
+<html lang="en">
-{% block content %}
+<head>
-  <div class="page-header">
+    <meta charset="UTF-8">
-    <div>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-      <h1 class="page-title">Dashboard</h1>
+    <title>Admin Center - Subscribers</title>
-      <p class="page-subtitle">Quick overview of your mailing activity</p>
+    <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
-    </div>
+</head>
-    <div class="page-actions">
+<body>
-      <a href="{{ url_for('send_update') }}" class="button button-primary">Send Update</a>
-    </div>
-  </div>
 
-  <section class="widgets">
+    <h1>Subscribers</h1>
-    <div class="widget-card">
+    <p>
-      <div class="widget-label">Total Subscribers</div>
+      <a href="{{ url_for('send_update') }}">Send Update Email</a>|
-      <div class="widget-value">{{ counts.total_subscribers }}</div>
+      <a href="{{ url_for('logout') }}">Logout</a>
-    </div>
+    </p>
-    <div class="widget-card">
+
-      <div class="widget-label">Newsletters Sent</div>
+    {% with messages = get_flashed_messages(with_categories=true) %}
-      <div class="widget-value">{{ counts.total_newsletters }}</div>
+      {% if messages %}
-    </div>
+        {% for category, message in messages %}
-    <div class="widget-card">
+          <div class="flash">{{ message }}</div>
-      <div class="widget-label">Sent Today</div>
+        {% endfor %}
-      <div class="widget-value">{{ counts.sent_today }}</div>
+      {% endif %}
-    </div>
+    {% endwith %}
-  </section>
 
     {% if emails %}
-    <div class="card">
+        <table>
-      <div class="table-wrap">
-        <table class="table">
             <thead>
                 <tr>
                     <th>Email Address</th>
@@ -43,11 +37,8 @@
                 {% endfor %}
             </tbody>
         </table>
-      </div>
-    </div>
     {% else %}
-    <div class="card empty-state">
         <p>No subscribers found.</p>
-    </div>
     {% endif %}
-{% endblock %}
+</body>
+</html>

templates/base.html

@@ -1,58 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-  <meta charset="UTF-8" />
-  <meta
-    name="viewport"
-    content="width=device-width, initial-scale=1.0, viewport-fit=cover"
-  />
-  <title>{% block title %}Admin{% endblock %}</title>
-  <link
-    rel="stylesheet"
-    href="{{ url_for('static', filename='css/style.css') }}"
-  />
-  <link
-    rel="preconnect"
-    href="https://fonts.googleapis.com"
-    crossorigin
-  />
-  <link
-    href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap"
-    rel="stylesheet"
-  />
-</head>
-<body>
-  <header class="navbar">
-    <div class="navbar-content">
-      <a class="brand" href="{{ url_for('index') }}">Admin Panel</a>
-      <nav class="navbar-links">
-        {% if session.get('username') %}
-        <a href="{{ url_for('index') }}">Dashboard</a>
-        <a href="{{ url_for('send_update') }}">Send Update</a>
-        <a href="{{ url_for('logout') }}" class="logout">Logout</a>
-        {% endif %}
-      </nav>
-    </div>
-  </header>
-
-  <main class="container">
-    {% with messages = get_flashed_messages(with_categories=true) %}
-      {% if messages %}
-        <div class="flash-stack">
-          {% for category, message in messages %}
-            <div class="flash flash-{{ category|lower }}">{{ message }}</div>
-          {% endfor %}
-        </div>
-      {% endif %}
-    {% endwith %}
-
-    {% block content %}{% endblock %}
-  </main>
-
-  <footer class="footer">
-    <div class="footer-inner">
-      <span>&copy; {{ 2025 }} Admin Panel</span>
-    </div>
-  </footer>
-</body>
-</html>

templates/login.html

@@ -1,34 +1,29 @@
-{% extends "base.html" %}
+<!DOCTYPE html>
-{% block title %}Admin Login{% endblock %}
+<html lang="en">
-{% block content %}
-  <section class="auth-wrapper">
-    <div class="card auth-card">
-      <h1 class="page-title">Welcome back</h1>
-      <p class="page-subtitle">Sign in to manage your subscribers</p>
 
-      <form action="{{ url_for('login') }}" method="POST" class="form">
+<head>
-        <div class="form-group">
+  <meta charset="UTF-8">
-          <label for="username">Username</label>
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-          <input
+  <title>Admin Login</title>
-            type="text"
+  <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
-            name="username"
+</head>
-            id="username"
+
-            autocomplete="username"
+<body>
-            required
+  <h1>Admin Login</h1>
-          />
+  {% with messages = get_flashed_messages(with_categories=true) %}
-        </div>
+  {% if messages %}
-        <div class="form-group">
+  {% for category, message in messages %}
-          <label for="password">Password</label>
+  <div class="flash">{{ message }}</div>
-          <input
+  {% endfor %}
-            type="password"
+  {% endif %}
-            name="password"
+  {% endwith %}
-            id="password"
+  <form action="{{ url_for('login') }}" method="POST">
-            autocomplete="current-password"
+    <label for="username">Username:</label>
-            required
+    <input type="text" name="username" required />
-          />
+    <label for="password">Password:</label>
-        </div>
+    <input type="password" name="password" required />
-        <button type="submit" class="button button-primary">Login</button>
+    <button type="submit">Login</button>
   </form>
-    </div>
+</body>
-  </section>
+
-{% endblock %}
+</html>

templates/send_update.html

@@ -1,32 +1,37 @@
-{% extends "base.html" %}
+<!DOCTYPE html>
-{% block title %}Send Update{% endblock %}
+<html lang="en">
-{% block content %}
-  <div class="page-header">
-    <div>
-      <h1 class="page-title">Send Update</h1>
-      <p class="page-subtitle">Send an email update to all subscribers</p>
-    </div>
-    <div class="page-actions">
-      <a href="{{ url_for('index') }}" class="button button-secondary">Dashboard</a>
-    </div>
-  </div>
 
-  <div class="card">
+<head>
-    <form action="{{ url_for('send_update') }}" method="POST" class="form">
+  <meta charset="UTF-8">
-      <div class="form-group">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-        <label for="subject">Subject</label>
+  <title>Admin Center - Send Update</title>
-        <input type="text" name="subject" id="subject" required />
+  <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
-      </div>
+</head>
 
-      <div class="form-group">
+<body>
-        <label for="body">Body (HTML allowed)</label>
+  <h1>Send Update Email</h1>
-        <textarea name="body" id="body" rows="12" required
+  <p>
-          placeholder="<h1>Title</h1><p>Your content...</p>"></textarea>
+    <a href="{{ url_for('index') }}">Back to Subscribers List</a> |
-      </div>
+    <a href="{{ url_for('logout') }}">Logout</a>
+  </p>
+  {% with messages = get_flashed_messages() %}
+    {% if messages %}
+      {% for message in messages %}
+        <div class="flash">{{ message }}</div>
+      {% endfor %}
+    {% endif %}
+  {% endwith %}
 
-      <div class="form-actions">
+  <form action="{{ url_for('send_update') }}" method="POST">
-        <button type="submit" class="button button-primary">Send Update</button>
+    <label for="subject">Subject:</label>
-      </div>
+    <input type="text" name="subject" required>
+
+    <label for="body">Body (HTML allowed):</label>
+    <textarea name="body" rows="10" required></textarea>
+
+    <button type="submit">Send Update</button>
   </form>
-  </div>
+
-{% endblock %}
+</body>
+
+</html>