# Use a recent and stable version of Docker Compose
version: '3.8'

# Define the services (containers) that make up your application
services:
  # The name of our service
  masto-rss:
    # Build the image from the Dockerfile in the current directory (.)
    build: .
    # Give the container a fixed, recognizable name
    container_name: masto-rss-container
    # Ensure the container restarts automatically if it crashes,
    # unless it has been stopped manually.
    restart: unless-stopped
    
    # Mount volumes to make data persistent
    volumes:
      # Mount the 'state' directory on the host to the '/state' directory in the container.
      # This ensures your history is saved across restarts.
      - ./state:/state
      
    # Define all environment variables the script needs
    environment:
      # Ensures that the output of print() is sent directly to the logs
      - PYTHONUNBUFFERED=1
      
      # --- Your Mastodon & RSS Configuration ---
      # Replace the values below with your own details
      - MASTODON_CLIENT_ID=YOUR_CLIENT_ID
      - MASTODON_CLIENT_SECRET=YOUR_CLIENT_SECRET
      - MASTODON_ACCESS_TOKEN=YOUR_ACCESS_TOKEN
      - MASTODON_INSTANCE_URL=https://your-instance.url
      - RSS_FEED_URL=https://your.rss/feed.xml
      
      # --- Optional Settings ---
      # The time in seconds between checks (default: 3600 = 1 hour)
      - CHECK_INTERVAL=3600
      # A list of hashtags, separated by spaces
      - MASTO_RSS_HASHTAGS=news tech python
      # The maximum number of remembered posts (default: 500)
      - MAX_HISTORY_SIZE=500
      # Visibility of the toot: 'public', 'unlisted', 'private', or 'direct'
      - TOOT_VISIBILITY=public

      # --- Customize your toot format here ---
      # Placeholders: {title}, {link}, {hashtags}. Use \n for a new line.
      # Make sure the line is enclosed in single quotes.
      #
      # Example 1: Default format (uncomment to use)
      # - TOOT_TEMPLATE='{title}\n\n{link}\n\n{hashtags}'
      #
      # Example 2: Short, compact format
      - TOOT_TEMPLATE='{title} - {link} {hashtags}'