#!/bin/sh
# script to poll metaserver periodically and record data

# path to installation
prefix=/home/james/upstream/vanilla/Vanilla
# TODO: make a way for scripts to learn prefix from configure

# path to internal binaries
libdir=${prefix}

# path to local state data
localstatedir=${prefix}/tools

# path to cache of metaserver information
tree=${localstatedir}/metadb
mkdir -p ${tree}

# timestamp for this query
ts=`date +%s`

# query metaserver and make output safe, pipe to subshell
${libdir}/tools/metaget | \
tr --delete '\\\"' | \
(
    # read the version and server count header
    IFS=, read -r version count
    tp=0
    tq=0

    # read each server line and store in cache
    while IFS=, read -r host port status age players queue type; do
      tag=`echo "$host:$port"|md5sum`
      tag=${tag/  -/}
      dir=$tree/$tag
      mkdir -p $dir
      echo "$host" > $dir/host
      echo "$port" > $dir/port
      echo "$status" > $dir/status
      echo "$age" > $dir/age
      echo "$players" > $dir/players
      echo "$queue" > $dir/queue
      echo "$type" > $dir/type
      
      echo "$ts $status $age $players $queue">> $dir/log
      let "tp += players"
      let "tq += queue"
    done
    echo "$ts $count $tp $tq" >> $tree/log
)