#! /bin/sh
#+
#
# .. _refdataget.sh:
#
# =============
# refdataget.sh
# =============
#
# ----------------------
# get all reference data
# ----------------------
#
# SYNOPSIS
# ========
#
# ``refdataget.sh``
#
# DESCRIPTION
# ===========
#
# Put in ${IRCAAM_ID} all the reference data files
#
# This includes :
#
# - ARPEGE data
#   4 parameters (rlut_d zg_d pr_d) in 5 simulations experiences
#   (CtIV CtCl AfNQIVIV AsNQIVIV TrNQIVIV) between 1971 and 2000.
#
#   You will need password from authorized people to access to ARPEGE
#   simulation files.
#
# - OLR observation between 1974 and now.
#
# If one of these files already exists (same name), it won't be download again
# to avoid big transfert.
#
# It might be usefull to check revision of original data ...
#
# EXAMPLES
# ========
#
# If you are working on LOCEAN machine and you don't have any reference data,
# you just have to run this tool ::
#
#  $ refdataget.sh
#
# And look at log file with ::
#
#  $ tlogd.sh refdataget
#
# and of course on files in ${IRCAAM_ID}.
#
# CAUTIONS
# ========
#
# how to know if there is enough place before ?
#
# SEE ALSO
# ========
#
# :ref:`ircaam_profile.sh`
#
# TODO
# ====
#
# ++ les fichiers de benjamin
#
# ++ la carte du monde
#
# ++ pb avec la saisie du mot de passe
#
# ++ et si je travaille sur une machine climserv ?
#
# ++ ajouter des options par dataset
#
# ++ unset
#
# EVOLUTIONS
# ==========
#
# $Id$
#
# - fplod 2009-01-08T10:40:55Z aedon.locean-ipsl.upmc.fr (Darwin)
#
#   * creation from varamma_ws/src/paper01_pre.sh
#
#-
system=$(uname)
case "${system}" in
   AIX|IRIX64)
      echo " www : no specific posix checking"
   ;;
   *)
      set -o posix
   ;;
esac
unset system
#
LANG=POSIX
#
command=$(basename ${0})
log_date=$(date -u +"%Y%m%dT%H%M%SZ")
#
usage=" Usage : ${command}"
#
hostname=$(hostname)
#
set -u
#
# check for ${IRCAAM_LOG} definition
if [ "${IRCAAM_LOG}" = "" ]
then
   echo " eee : \${IRCAAM_LOG} not defined"
   exit 1
fi
#
# check for ${IRCAAM_LOG} existence
if [ ! -d ${IRCAAM_LOG} ]
then
   echo " eee : ${IRCAAM_LOG} not found"
   exit 1
fi
#
# check for permission access on IRCAAM_LOG
if [ ! -x ${IRCAAM_LOG} ]
then
   echo " eee : ${IRCAAM_LOG} not reachable"
   exit 1
fi
#
# check for write permission on IRCAAM_LOG
if [ ! -w ${IRCAAM_LOG} ]
then
   echo " eee : ${IRCAAM_LOG} not writable"
   exit 1
fi
#
log=${IRCAAM_LOG}/$(basename ${0} .sh).log.${log_date}
echo "[Context]" 1>> ${log}
echo "command=${command}" 1>> ${log}
echo "hostname=${hostname}" 1>> ${log}
echo "runtime=${log_date}" 1>> ${log}
#
# check for write permission on IRCAAM_ID
if [ ! -w ${IRCAAM_ID} ]
then
   echo " eee : ${IRCAAM_ID} not writable"
   exit 1
fi

# ARPEGE
list_param="rlut_d zg_d pr_d"
list_simu="CtIV CtCl AfNQIVIV AsNQIVIV TrNQIVIV"
year_min=1971
year_max=2000
dirrefb="http://www.cnrm.meteo.fr/dods-ensembles/Datasets/IRCAAM/"
#
read -s -p "enter ircaam-dods password : " dods_passwd
#
for simu in ${list_simu}
do
   case ${simu} in
      CtIV|CtCl|AfNQIVIV)
         dirref="${dirrefb}/Sim/"
      ;;
      AsNQIVIV)
         dirref="${dirrefb}/Sim_As/"
      ;;
      TrNQIVIV)
         dirref="${dirrefb}/Sim_Tr/"
      ;;
      *)
         echo "eee : wrong \${simu}"
         exit 1
      ;;
   esac
   dirref="${dirref}/${simu}/"
   for param in ${list_param}
   do
      year_i=${year_min}
      while [ ${year_i} -le ${year_max} ]
      do
         year_c=$(printf "%4.4d" ${year_i}')
         fileref=${param}.${simu}.${year_c}06-09.nc
         if  [ -f ${IRCAAM_ID}/${fileref} ]
         then
            echo "iii : ${IRCAAM_ID}/${fileref} exist" ${log} 2>&1
            echo "iii : nothing done" >> ${log} 2>&1
         else
            wget --no-verbose --user=ircaam-dods --password=${dods_passwd} \
               -P ${IRCAAM_ID} \
               ${dirref}/${fileref} >> ${log} 2>&1
            # ++ ok ?
            # ++ si climserv faire ln -s ${dirref}/${fileref} ${IRCAAM_ID}/
         fi
         year_i=$(( ${year_i} + 1 ))
      done
      unset year_i
   done
   unset param
done
# OLR
fileref=olr.day.mean.nc
dirref=ftp://ftp.climserv.ipsl.polytechnique.fr/noaa-olr/
if  [ -f ${IRCAAM_ID}/${fileref} ]
then
   echo "iii : ${IRCAAM_ID}/${fileref} exist"  >> ${log} 2>&1
   echo "iii : nothing done" >> ${log} 2>&1
else
   wget --no-verbose -P ${IRCAAM_ID} ${dirref}/${fileref} >> ${log}
   # ++ ok ?
fi
unset fileref
unset dirref
#
# end
set
exit 0