#!/bin/sh
set -e

REGION="${OSRM_REGION:-connecticut-latest}"
PBF="/data/${REGION}.osm.pbf"
OSRM="/data/${REGION}.osrm"
PROFILE="${OSRM_PROFILE:-/opt/car.lua}"

# The PBF is downloaded by the osrm-download service before this container starts.
if [ ! -f "$PBF" ]; then
    echo "[osrm] ERROR: $PBF not found. The osrm-download service should have fetched it."
    exit 1
fi

# Preprocess if .osrm files are missing
if [ ! -f "$OSRM" ]; then
    echo "[osrm] Extracting road network (this takes a few minutes)..."
    osrm-extract -p "$PROFILE" "$PBF"
    echo "[osrm] Partitioning..."
    osrm-partition "$OSRM"
    echo "[osrm] Customizing..."
    osrm-customize "$OSRM"
    echo "[osrm] Preprocessing complete."
fi

echo "[osrm] Starting routing engine..."
exec osrm-routed --algorithm mld "$OSRM"