#!/bin/sh

# TODO: port to node, if you really need it

ENV='development';
BASEDIR=`cd $(dirname $0)/../; pwd`

if test -z "$1"; then
  echo "Usage: $0 [--env <environment>] <username> [<tablename>|~<token>]" >&2
  echo " environment defaults to 'development'"
  exit 1
fi

username=""
token=""

while test -n "$1"; do
  if test "$1" = "--env"; then
    shift; ENV="$1"; shift
  elif test -z "$username"; then
    username="$1"; shift
  elif test -z "$token"; then
    token="$1"; shift
  else
    echo "Unused option $1" >&2
    shift
  fi
done

echo "Using environment '${ENV}'"

CONFIG="${BASEDIR}/config/environments/${ENV}.js"
REDIS_PORT=`node -e "console.log(require('${CONFIG}').redis.port)"`
if test $? -ne 0; then
  exit 1
fi


dbname=`redis-cli -p ${REDIS_PORT} -n 5 hget "rails:users:${username}" "database_name"`
if test $? -ne 0; then
  exit 1
fi
if test -z "${dbname}"; then
  echo "Username ${username} unknown by redis on port ${REDIS_PORT} (try CARTODB/script/restore_redis?)" >&2
  exit 1
fi
echo "Database name for user ${username}: ${dbname}" # only if verbose?
if test -n "$token"; then
  rec=`redis-cli get "map_style|${dbname}|${token}"`
  if test -z "${rec}"; then
    echo "${token}: no such map style known by redis on port ${REDIS_PORT}" >&2
    exit 1
  fi
  #echo "${rec}" 
  escrec=`echo "${rec}" | sed -e 's/\\\\/\\\\\\\\/g'`
  #echo "${escrec}" 
  node <<EOF
var x=JSON.parse('${escrec}');
console.log('style: ' + x.style);
console.log('version: ' + x.version);

global.environment = require('${CONFIG}');
var serverOptions = require('${BASEDIR}/lib/cartodb/server_options'); // _after_ setting global.environment
var grainstore = require('${BASEDIR}/node_modules/windshaft/node_modules/grainstore/lib/grainstore');
var mml_store = new grainstore.MMLStore(serverOptions.redis, serverOptions.grainstore);
var builderconfig = {dbname:'${dbname}'};
if ( '${token}'.match(/^~/) ) {
  builderconfig.token = '${token}'.substring(1);
} else {
  builderconfig.table = '${token}';
}
var mml_builder = mml_store.mml_builder(builderconfig,
      function(err, payload) {
        if ( err ) throw err;
        mml_builder.toXML(function(err, xml) {
        if ( err ) throw err;
          console.log('- XML - ');
          console.log(xml);
        });
      });
EOF
  #echo "${rec}" | sed -e 's/\\n/\n/g' -e 's/\\//g'
else
  redis-cli keys "map_style|${dbname}|*"
fi