# Open Mapping Backend Services
# Deploy to: /opt/apps/open-mapping/ on Netcup RS 8000
#
# Prerequisites:
# 1. Download OSM data: wget https://download.geofabrik.de/europe/germany-latest.osm.pbf
# 2. Pre-process OSRM: docker run -t -v "${PWD}:/data" osrm/osrm-backend osrm-extract -p /opt/car.lua /data/germany-latest.osm.pbf
#    Then: osrm-partition, osrm-customize
# 3. Download vector tiles or generate with OpenMapTiles

version: '3.8'

services:
  # =========================================================================
  # OSRM - Open Source Routing Machine
  # Primary routing engine for fast route calculations
  # =========================================================================
  osrm:
    image: osrm/osrm-backend:v5.27.1
    container_name: open-mapping-osrm
    restart: unless-stopped
    volumes:
      - ./data/osrm:/data:ro
    command: osrm-routed --algorithm mld /data/germany-latest.osrm --max-table-size 10000
    ports:
      - "5000:5000"  # Internal only, accessed via Traefik
    networks:
      - traefik-public
      - open-mapping-internal
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.osrm.rule=Host(`routing.jeffemmett.com`) && PathPrefix(`/osrm`)"
      - "traefik.http.routers.osrm.middlewares=osrm-stripprefix"
      - "traefik.http.middlewares.osrm-stripprefix.stripprefix.prefixes=/osrm"
      - "traefik.http.services.osrm.loadbalancer.server.port=5000"
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5000/health"]
      interval: 30s
      timeout: 10s
      retries: 3

  # =========================================================================
  # Valhalla - Extended Routing Engine
  # For isochrones, transit, and advanced features
  # =========================================================================
  valhalla:
    image: ghcr.io/gis-ops/docker-valhalla/valhalla:latest
    container_name: open-mapping-valhalla
    restart: unless-stopped
    volumes:
      - ./data/valhalla:/custom_files
    environment:
      - tile_urls=https://download.geofabrik.de/europe/germany-latest.osm.pbf
      - use_tiles_ignore_pbf=True
      - build_elevation=True
      - build_admins=True
      - build_time_zones=True
      - force_rebuild=False
    ports:
      - "8002:8002"
    networks:
      - traefik-public
      - open-mapping-internal
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.valhalla.rule=Host(`routing.jeffemmett.com`) && PathPrefix(`/valhalla`)"
      - "traefik.http.routers.valhalla.middlewares=valhalla-stripprefix"
      - "traefik.http.middlewares.valhalla-stripprefix.stripprefix.prefixes=/valhalla"
      - "traefik.http.services.valhalla.loadbalancer.server.port=8002"
    deploy:
      resources:
        limits:
          memory: 8G

  # =========================================================================
  # TileServer GL - Vector Tile Server
  # Serves map tiles for MapLibre GL JS
  # =========================================================================
  tileserver:
    image: maptiler/tileserver-gl:v4.6.5
    container_name: open-mapping-tiles
    restart: unless-stopped
    volumes:
      - ./data/tiles:/data:ro
    ports:
      - "8080:8080"
    networks:
      - traefik-public
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.tiles.rule=Host(`tiles.jeffemmett.com`)"
      - "traefik.http.services.tiles.loadbalancer.server.port=8080"
      # CORS headers for cross-origin tile requests
      - "traefik.http.middlewares.tiles-cors.headers.accesscontrolallowmethods=GET,OPTIONS"
      - "traefik.http.middlewares.tiles-cors.headers.accesscontrolalloworiginlist=*"
      - "traefik.http.middlewares.tiles-cors.headers.accesscontrolmaxage=100"
      - "traefik.http.routers.tiles.middlewares=tiles-cors"
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8080/health"]
      interval: 30s
      timeout: 10s
      retries: 3

  # =========================================================================
  # VROOM - Vehicle Routing Optimization
  # Solves TSP and VRP for multi-stop route optimization
  # =========================================================================
  vroom:
    image: vroomvrp/vroom-docker:v1.14.0
    container_name: open-mapping-vroom
    restart: unless-stopped
    environment:
      - VROOM_ROUTER=osrm
      - OSRM_URL=http://osrm:5000
    ports:
      - "3000:3000"
    networks:
      - traefik-public
      - open-mapping-internal
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.vroom.rule=Host(`routing.jeffemmett.com`) && PathPrefix(`/optimize`)"
      - "traefik.http.routers.vroom.middlewares=vroom-stripprefix"
      - "traefik.http.middlewares.vroom-stripprefix.stripprefix.prefixes=/optimize"
      - "traefik.http.services.vroom.loadbalancer.server.port=3000"
    depends_on:
      - osrm

  # =========================================================================
  # API Gateway (optional)
  # Unified routing API that abstracts backend services
  # =========================================================================
  # api:
  #   build: ./api
  #   container_name: open-mapping-api
  #   restart: unless-stopped
  #   environment:
  #     - OSRM_URL=http://osrm:5000
  #     - VALHALLA_URL=http://valhalla:8002
  #     - VROOM_URL=http://vroom:3000
  #   ports:
  #     - "4000:4000"
  #   networks:
  #     - traefik-public
  #     - open-mapping-internal
  #   labels:
  #     - "traefik.enable=true"
  #     - "traefik.http.routers.mapping-api.rule=Host(`mapping.jeffemmett.com`)"
  #     - "traefik.http.services.mapping-api.loadbalancer.server.port=4000"

networks:
  traefik-public:
    external: true
  open-mapping-internal:
    driver: bridge

# Persistent storage for processed routing data
volumes:
  osrm-data:
  valhalla-data:
  tiles-data: