# =============================================================================
# Dotcom Arcade
# =============================================================================
# The app serves the UI and API. With the "streaming" profile, a session
# manager also streams games that can't run in a browser (Java, Shockwave,
# Flash Player, Windows games), one container per player.
#
# Usage:
#   1. Copy .env.example to .env and set the required variables
#   2. docker compose up -d --build
#      (or, with IMAGE_PREFIX set to a registry's images:
#      docker compose pull && docker compose up -d)
#   3. For streaming, set STREAMING_API_TOKEN and COMPOSE_PROFILES=streaming in
#      .env, then run `docker compose up -d --build` again
#
# Set PUID/PGID to your host user (`id -u`, `id -g`) so bind-mounted volumes
# get the right ownership.
# =============================================================================

services:
  app:
    build: .
    image: ${IMAGE_PREFIX:-}dotcom-arcade:${IMAGE_TAG:-latest}
    container_name: dotcom-arcade
    restart: unless-stopped
    ports:
      # Serves both the UI and the API (/api, /game-proxy, /game-zip) on one port
      - "${WEB_PORT:-80}:3100"
    volumes:
      # Read-write: the app records downloaded state in flashpoint.sqlite and
      # writes downloaded game data under Data/Games.
      - ${FLASHPOINT_HOST_PATH:?FLASHPOINT_HOST_PATH is required}:/data/flashpoint
      # Holds user.db and the installed Ruffle. Without this mount an in-app
      # Ruffle update is lost the next time the container is recreated.
      - ${DATA_PATH:-./data}:/app/data
      - ${LOGS_PATH:-./logs}:/app/logs
    environment:
      - PUID=${PUID:-1000}
      - PGID=${PGID:-1000}
      - NODE_ENV=production
      - SERVE_FRONTEND=true
      - TZ=${TZ:-UTC}
      - DOMAIN=${DOMAIN:-http://localhost:${WEB_PORT:-80}}
      - LOG_LEVEL=${LOG_LEVEL:-info}
      # File I/O parallelism: images and ZIP reads run on libuv's threadpool,
      # whose default of 4 throttles every filesystem request in the process.
      - UV_THREADPOOL_SIZE=${UV_THREADPOOL_SIZE:-16}
      - JWT_SECRET=${JWT_SECRET:?JWT_SECRET is required}
      - ENABLE_LOCAL_DB_COPY=${ENABLE_LOCAL_DB_COPY:-false}
      - SQLITE_CACHE_SIZE=${SQLITE_CACHE_SIZE:--64000}
      - SQLITE_MMAP_SIZE=${SQLITE_MMAP_SIZE:-268435456}
      - ENABLE_CACHE_PREWARM=${ENABLE_CACHE_PREWARM:-true}
      # Auth & rate limiting
      - JWT_EXPIRES_IN=${JWT_EXPIRES_IN:-1h}
      - BCRYPT_SALT_ROUNDS=${BCRYPT_SALT_ROUNDS:-10}
      - RATE_LIMIT_WINDOW_MS=${RATE_LIMIT_WINDOW_MS:-60000}
      - RATE_LIMIT_MAX_REQUESTS=${RATE_LIMIT_MAX_REQUESTS:-100}
      # Application
      # "Latest release" API URL (GitHub or Gitea) for update checks; off when unset
      - APP_UPDATE_URL=${APP_UPDATE_URL:-}
      - ENABLE_CGI=${ENABLE_CGI:-false}
      # Streamed play for games that can't run in a browser (off unless the token is set)
      - STREAMING_API_URL=${STREAMING_API_URL:-http://session-manager:8080}
      - STREAMING_STREAM_URL=${STREAMING_STREAM_URL:-http://session-manager:8081}
      - STREAMING_API_TOKEN=${STREAMING_API_TOKEN:-}
      # Sign in users named by an authenticating reverse proxy (off unless both are set)
      - TRUSTED_HEADER_USERNAME=${TRUSTED_HEADER_USERNAME:-}
      - TRUSTED_HEADER_EMAIL=${TRUSTED_HEADER_EMAIL:-}
      - TRUSTED_PROXIES=${TRUSTED_PROXIES:-}
      # OpenTelemetry
      - OTEL_ENABLED=${OTEL_ENABLED:-false}
      - OTEL_EXPORTER_OTLP_ENDPOINT=${OTEL_EXPORTER_OTLP_ENDPOINT:-}
      - OTEL_API_KEY=${OTEL_API_KEY:-}
      - OTEL_SERVICE_NAME=${OTEL_SERVICE_NAME:-dotcom-arcade}
      - OTEL_TRACES_ENABLED=${OTEL_TRACES_ENABLED:-true}
      - OTEL_METRICS_ENABLED=${OTEL_METRICS_ENABLED:-true}
      - OTEL_METRICS_EXPORT_INTERVAL=${OTEL_METRICS_EXPORT_INTERVAL:-60000}
      - OTEL_LOG_LEVEL=${OTEL_LOG_LEVEL:-info}
    healthcheck:
      test: ["CMD", "curl", "--fail", "http://localhost:3100/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      # The port opens early and /health reports "starting" until the database
      # copy and cache pre-warm finish, which is minutes on a network share.
      start_period: 300s
    logging:
      driver: json-file
      options:
        max-size: "10m"
        max-file: "3"
    deploy:
      resources:
        limits:
          cpus: "2.0"
          memory: 2G
        reservations:
          cpus: "0.5"
          memory: 512M
    networks:
      - arcade

  # Starts a streamer container per player. The app proxies /stream/ to it, so
  # it publishes no ports.
  session-manager:
    profiles: [streaming]
    build: streaming/session-manager
    image: ${IMAGE_PREFIX:-}dotcom-arcade-session-manager:${IMAGE_TAG:-latest}
    container_name: dotcom-arcade-session-manager
    restart: unless-stopped
    volumes:
      # Starts and removes streamer containers. Docker socket access is
      # effectively root on the host.
      - /var/run/docker.sock:/var/run/docker.sock
      - ${FLASHPOINT_HOST_PATH:?FLASHPOINT_HOST_PATH is required}:/flashpoint:ro
    environment:
      - FLASHPOINT_HOST_PATH
      # The session manager refuses to start without it
      - API_TOKEN=${STREAMING_API_TOKEN:-}
      - STREAMER_IMAGE=${IMAGE_PREFIX:-}dotcom-arcade-streamer:${IMAGE_TAG:-latest}
      - STREAMER_NETWORK=dotcom-arcade-streams
      - MAX_SESSIONS=${MAX_SESSIONS:-4}
      - STREAM_PLATFORMS=${STREAM_PLATFORMS:-Java,Shockwave,Flash}
      - PUID=${PUID:-1000}
      - PGID=${PGID:-1000}
    networks:
      - arcade
      - streams

  # The image the session manager runs per player; built here, never started by compose
  streamer:
    profiles: [streaming]
    build: streaming/streamer
    image: ${IMAGE_PREFIX:-}dotcom-arcade-streamer:${IMAGE_TAG:-latest}
    scale: 0

networks:
  arcade:
    name: dotcom-arcade
  # Streamer containers: reachable only from the session manager, no internet access
  streams:
    name: dotcom-arcade-streams
    internal: true