#!/bin/sh

# by signal file from sondemod triggered almanach download daemon
# start in sondemod work dir

ALMFN="e.txt"
SIGFN="getalmanach"
TEMP="/tmp";

while true; do
  if [ -e $SIGFN ] ; then
    DAY=`date -u +%j`
    YEAR=`date -u +%y`
    echo day:$DAY year:$YEAR
    FN=brdc`echo -n $DAY`0.`echo -n $YEAR`n
    PD=$PWD
    cd $TEMP
#    wget http://qz-vision.jaxa.jp/USE/archives/ephemeris//20$YEAR/$FN
#
#    if [ -s $TEMP/$FN ] ; then
#      echo jaxa ok
#    else
      wget https://www.ngs.noaa.gov/cors/rinex/20$YEAR/$DAY/$FN.gz
      if [ -s $TEMP/$FN.gz ] ; then
        echo noaa ok
        gunzip $TEMP/$FN.gz
      fi
#    fi

    cd $PD 

    if [ -s $TEMP/$FN ] ; then
      mv $TEMP/$FN $TEMP/$ALMFN
      rm -f $SIGFN
      if [ -e $SIGFN ] ; then
        echo getalmanach file not deletable
        exit
      fi
      sleep 1800
    else 
      echo download failed
      sleep 300
    fi
  else
    sleep 10
  fi 
done
# if [ -e $TEMP/$ALMFN ] ; then
# FILESIZE=`wc -c /tmp/e.txt | awk '{print $1}'`
# if [ $FILESIZE -lt 500000 ] ; then
# rm $TEMP/$ALMFN
# fi
# fi