#!/bin/bash
set -e;
export LC_ALL=en_US.UTF-8;
BASEDIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd );

function help(){
cat <<EOM
  Usage: interpolate [command] [options]
  Note: you will need to pipe data in to the import/conflate commands

   help                                                                      output usage information
   search [address_db] [street_db] [lat] [lon] [house_number] [street_name]  search database for specified housenumber + street
   polyline [street_db]                                                      import polyline data in to [street_db]
   oa [address_db] [street_db]                                               conflate oa csv file in to [address_db] using [street_db]
   osm [address_db] [street_db]                                              conflate osm file in to [address_db] using [street_db]
   tiger [address_db] [street_db]                                            conflate tiger address range geojson file in to [address_db] using [street_db]
   vertices [address_db] [street_db]                                         compute fractional house numbers for line vertices
   extract [address_db] [street_db] [lat] [lon] [street_name]                extract street address data for debugging purposes
   server [address_db] [street_db]                                           start a web server

   build                                                                     run the import script
EOM
}

# trap SIGTERM and propogate to child process
_term() {
  echo "Caught SIGTERM signal!"
  kill -TERM "$child" 2>/dev/null
}
trap _term SIGTERM

# cli runner
case "$1" in
'help') help;;
'search') node "$BASEDIR/cmd/search" "$2" "$3" "$4" "$5" "$6" "$7" &;;
'polyline') cat -| node "$BASEDIR/cmd/polyline" "$2" &;;
'oa') cat -| node "$BASEDIR/cmd/oa" "$2" "$3" &;;
'osm') cat -| node "$BASEDIR/cmd/osm" "$2" "$3" &;;
'tiger') cat -| node "$BASEDIR/cmd/tiger" "$2" "$3" &;;
'vertices') node "$BASEDIR/cmd/vertices" "$2" "$3" &;;
'extract') node "$BASEDIR/cmd/extract" "$2" "$3" "$4" "$5" "$6" &;;
'server') node "$BASEDIR/cmd/server" "$2" "$3" &;;
'build')

  # validate all ENV vars are explicitly set
  env_vars=( 'BUILDDIR' 'POLYLINE_FILE' 'OAPATH' 'TIGERPATH' 'PBF2JSON_BIN' 'PBF2JSON_FILE' )
  for var_name in "${env_vars[@]}"; do
    [ -z "${!var_name}" ] && echo "env var $var_name required" && exit 1;
    export "${var_name}"; # export so child scripts can pick them up
  done

  # run polyline importer
  /bin/bash $BASEDIR/script/import.sh &
  child=$!; wait "$child";

  # run openaddresses conflation
  /bin/bash $BASEDIR/script/conflate_oa.sh &
  child=$!; wait "$child";

  # run openstreetmap conflation
  /bin/bash $BASEDIR/script/conflate_osm.sh &
  child=$!; wait "$child";

  # run tiger conflation
  /bin/bash $BASEDIR/script/conflate_tiger.sh &
  child=$!; wait "$child";

  # run vertex interpolation
  /bin/bash $BASEDIR/script/vertices.sh &
  ;;
*)
  help;;
esac

# wait for child process(es) to exit before exiting
child=$!
wait "$child" > /dev/null 2>&1

# build example
# BUILDDIR=/tmp/tempbuild \
# POLYLINE_FILE=/data/polyline/berlin.polylines \
# OAPATH=/data/oa/de \
# PBF2JSON_BIN=/var/www/pelias/pbf2json/build/pbf2json.linux-x64 \
# PBF2JSON_FILE=/data/extract/berlin-latest.osm.pbf \
# ./interpolate build