# Define the services (containers) for your application
services:
  # The name of our service
  time-tracker-app:
    # Build the Docker image from the Dockerfile in the current directory (.)
    build: .
    # Name the container for easier management
    container_name: time-tracker
    # Restart policy: always restart the container if it stops.
    # This is useful for production environments to ensure the app is always running.
    restart: always
    # Keep the container running by allocating a pseudo-TTY
    tty: true
    # Port mapping: map port 3000 on the host machine to port 3000 in the container.
    # This allows you to access the application via http://<your-server-ip>:3000
    ports:
      - "3004:3000"
    # Volume mapping: persist the database file.
    # This creates a 'data' folder in your project directory on the host machine
    # and links it to the /usr/src/app/data directory inside the container.
    # The timetracker.db will be stored here, ensuring data is not lost.
    volumes:
      - ./data:/usr/src/app/data
    # Environment file: tells Docker Compose to use the .env file in the
    # current directory to set environment variables inside the container.
    env_file:
      - .env
    network_mode: bridge