#!/bin/ksh
#**************************************************************
# Author: Martial Mancip
# Contact: Martial.Mancip__at__ipsl.jussieu.fr
# $Revision::                                          $ Revision of last commit
# $Author::                                            $ Author of last commit
# $Date::                                              $ Date of last commit
# IPSL (2006)
#  This software is governed by the CeCILL licence see libIGCM/libIGCM_CeCILL.LIC
#
#**************************************************************
# ID of your genci project. Curie only : post-processing jobs need it to run properly
#-Q- curie export BRIDGE_MSUB_PROJECT=::default_project:: 
#-Q- irene export BRIDGE_MSUB_PROJECT=::default_project:: 

#set -eu
#set -vx

libIGCM=::modipsl::/libIGCM

#D- Task type DO NOT CHANGE (computing, post-processing or checking)
TaskType=post-processing

#D--------------------------------------------------------------------==
#D-                   -1. User modification place
#D--------------------------------------------------------------------==

#D- Increased verbosity (1, 2, 3)
Verbosity=3

#D- Low level debug : to bypass lib test checks and stack construction
#D- Default=true
DEBUG_debug=false

#D--------------------------------------------------------------------==

echo "clean latest PackPeriod script :"
echo "Script used to clean a Pack Period from the IGCM_OUT directory !"
echo "This script will erase files !!! Be careful and read all informations !"
echo "----"
echo "It must be called in Experience directory (so-called SUBMIT_DIR)."
echo "----"

#D--------------------------------------------------------------------==

. ${libIGCM}/libIGCM_debug/libIGCM_debug.ksh
. ${libIGCM}/libIGCM_card/libIGCM_card.ksh
. ${libIGCM}/libIGCM_date/libIGCM_date.ksh
#-------
SUBMIT_DIR=$( pwd )
. ${libIGCM}/libIGCM_sys/libIGCM_sys.ksh
. ${libIGCM}/libIGCM_config/libIGCM_config.ksh
#-------
( ${DEBUG_debug} ) && IGCM_debug_Check
( ${DEBUG_debug} ) && IGCM_card_Check
( ${DEBUG_debug} ) && IGCM_date_Check

#==================================
# First of all
#
# Read libIGCM compatibility version in config.card
# Read UserChoices section
# Read Ensemble section
# Read Post section
# Define all netcdf output directories
#==================================
IGCM_config_CommonConfiguration ${SUBMIT_DIR}/config.card

#==================================
# Define default value to keep compatibility with previous card: means before changes due to TGCC
if [ X${PackDefault} = Xtrue ] ; then
  [ X${config_Post_PackFrequency} = X ] && config_Post_PackFrequency=${config_Post_RebuildFrequency}
else
  config_Post_PackFrequency=NONE
fi

#==================================
# Is the pack active
if ( [ ! X${config_Post_PackFrequency} = X${NULL_STR} ] && \
     [ ! X${config_Post_PackFrequency} = XNONE ] ) ; then
  Pack=true
fi

IGCM_sys_TestDirArchive ${R_SAVE}
[ $? != 0 ] && IGCM_debug_Exit "IGCM_sys_TestDirArchive"

if [ ! -f ${SUBMIT_DIR}/run.card ]; then
    echo "You seem NOT to have a run.card in this directory !!"
    echo "This script will fail because it doesn't know what to do without run.card available."
    exit 1
fi

#===================================#
#        Read updated run.card      #
#===================================#
IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/run.card Configuration PeriodState
IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/run.card Configuration PeriodDateBegin
IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/run.card Configuration PeriodDateEnd
IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/run.card Configuration CumulPeriod
if [ X${run_Configuration_CumulPeriod} == X ] ; then
  ${run_Configuration_CumulPeriod} = 0
fi

PreviousPeriodDateBegin=$( IGCM_date_ConvertFormatToGregorian ${run_Configuration_PeriodDateBegin} )
PreviousPeriodDateEnd=$( IGCM_date_ConvertFormatToGregorian ${run_Configuration_PeriodDateEnd} )

IGCM_date_GetYearMonth ${PreviousPeriodDateEnd} PreviousPeriodYear PreviousPeriodMonth

if [ $# == 1 ] ; then
  if [ ${#1} != 4 ] ; then
    echo "You must give a year (SSAA) as argument."
    exit 1
  fi
  ReferenceYear=$1
else
  ReferenceYear=${PreviousPeriodYear}
fi
RemovedPeriods=0

# Colors
Red="\033[1;31m"
Green="\033[1;32m"
NoColor="\033[0m"

while [ ${PreviousPeriodYear} -ge ${ReferenceYear} ] ; do

  PeriodDateEnd=${PreviousPeriodDateEnd}
  PeriodDateBegin=${PreviousPeriodDateBegin}
  PeriodYear=${PreviousPeriodYear}
  PeriodMonth=${PreviousPeriodMonth}

  echo "Search files with ${PeriodDateEnd} in ${R_SAVE}"
  unset ListFiles
  set +A ListFiles -- $( IGCM_sys_RshArchive "find ${R_SAVE} -name \"*${PeriodDateEnd}*\" " )
  CountListFiles=${#ListFiles[@]}

  if [ X${Pack} = Xtrue ] ; then
    echo "Search files with ${PeriodDateEnd} in ${R_BUFR}"
    unset ListFilesBuf
    set +A ListFilesBuf -- $( IGCM_sys_RshMaster "find ${R_BUFR} -name \"*${PeriodDateEnd}*\" " )
    CountListFilesBuf=${#ListFilesBuf[@]}
  else
    CountListFilesBuf=0
  fi

  # If exist, erase REBUILD DIR
  CountRebuildDir=0
  if [ X${config_Post_RebuildFrequency} != X ] ; then
    echo "Search directories with ${PeriodDateBegin} in REBUILD_DIR"
    unset RebuildDir
    set +A RebuildDir -- $( find ${REBUILD_DIR} -type d -name  "*${PeriodDateBegin}*" )
    CountRebuildDir=${#RebuildDir[@]}
  fi


  if ( [ ${CountListFiles} -gt 0 ] || [ ${CountListFilesBuf} -gt 0 ] ) ; then
    IGCM_debug_Print 1 "Number of files to be erased from ${R_SAVE} : ${CountListFiles}."
    for file in ${ListFiles[@]} ; do
      IGCM_debug_Print 2 -e "${Red} ${file}${NoColor}"
    done
    if [ X${Pack} = Xtrue ] ; then
      IGCM_debug_Print 1 "Number of files to be erased from ${R_BUFR} : ${CountListFilesBuf}."
      for file in ${ListFilesBuf[@]} ; do
        IGCM_debug_Print 2 -e "${Red} ${file}${NoColor}"
      done
    fi

    echo -e "${Green}Do you REALLY want to erase all those files ?"
    echo -n -e " Your answer (y/n) : ${NoColor}"

    read reponse
    case ${reponse} in
      oui|OUI|o|y|yes|YES)
        echo "OK. It will be erased."
        IGCM_sys_RshArchive "find ${R_SAVE} -name \"*${PeriodDateEnd}*\" -exec rm -f '{}' \;"
        if [ X${Pack} = Xtrue ] ; then
          IGCM_sys_RshMaster  "find ${R_BUFR} -name \"*${PeriodDateEnd}*\" -exec rm -f '{}' \;"
        fi
        echo "done."
        ;;
      non|NON|n|no|NO)
        echo "Nothing to do !"
        ;;
    esac
  fi

  if [ ${CountRebuildDir} -gt 0 ] ; then
    IGCM_debug_Print 1 "Number of REBUILD Dirs to be erased : ${CountRebuildDir}."
    for Dir in ${RebuildDir[@]} ; do
      IGCM_debug_Print 2 -e "${Red} ${Dir}${NoColor}"
    done

    echo -e "${Green}Do you REALLY want to erase all those Directories ?"
    echo -n -e " Your answer (y/n) : ${NoColor}"

    read reponse
    case ${reponse} in

      oui|OUI|o|y|yes|YES)
        echo "OK. It will be erased."        
        find ${REBUILD_DIR} -type d -name "*${PeriodDateBegin}*" -exec rm -Rf '{}' \;
        echo "done."
        ;;
      non|NON|n|no|NO)
        echo "Nothing to do !"
        ;;
    esac
  fi

  (( RemovedPeriods = ${RemovedPeriods} + 1 ))

  # Get previous period begin and end dates
  PreviousPeriodDateEnd=$( IGCM_date_AddDaysToGregorianDate ${PeriodDateBegin} -1 )
  Length=$( IGCM_date_DaysInPreviousPeriod ${PreviousPeriodDateEnd} ${config_UserChoices_PeriodLength} )
  echo "PreviousPeriodDateEnd, Length : $Length $PreviousPeriodDateEnd"
  PreviousPeriodDateBegin=$( IGCM_date_AddDaysToGregorianDate ${PreviousPeriodDateEnd} -$(( Length - 1 )) )
  echo "PreviousPeriodDateBegin PreviousPeriodDateEnd :" $PreviousPeriodDateBegin $PreviousPeriodDateEnd
  IGCM_date_GetYearMonth ${PreviousPeriodDateEnd} PreviousPeriodYear PreviousPeriodMonth

done

if [ ${RemovedPeriods} == 0 ] ; then
  echo "Nothing done, exit"
  exit 0
fi

IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/run.card Configuration PeriodState
if ( [ ${run_Configuration_PeriodState} != "Running" ] && \
     [ ${run_Configuration_PeriodState} != "Continue" ] ) ; then

  (( NewCumulPeriod = ${run_Configuration_CumulPeriod} - ${RemovedPeriods} + 1 ))

  if [ ${NewCumulPeriod} -le 1 ] ; then
    RemoveRunCard=true
  else
    RemoveRunCard=false
  fi

  Suffix=$( printf '%06i' ${NewCumulPeriod} )

  printf "${Green}Your run.card and Job_${config_UserChoices_JobName} will now be updated\n"
  printf " - PeriodState = OnQueue ;\n"
  printf " - PeriodDateBegin, PeriodDateEnd and CumulPeriod ;\n"
  printf "   %-10s       %-10s          %6i\n" \
         $( IGCM_date_HumanDigit ${PeriodDateBegin} ) \
         $( IGCM_date_HumanDigit ${PeriodDateEnd} ) \
         ${NewCumulPeriod}
  printf " - ScriptOutput = %s" \
         "Script_Output_${config_UserChoices_JobName}.${Suffix}"
  printf " Are you OK ? (y/n) ${NoColor}"

  read reponse
  case ${reponse} in
    oui|OUI|o|y|yes|YES)
      if ( ${RemoveRunCard} ) ; then
        echo "CumulPeriod=1 so we erase run.card to start properly."
        IGCM_sys_Rm ${SUBMIT_DIR}/run.card
      else
        # Update run.card
        cp ${SUBMIT_DIR}/run.card ${SUBMIT_DIR}/run.card.old
        IGCM_card_WriteOption ${SUBMIT_DIR}/run.card Configuration PeriodState "OnQueue"
        IGCM_card_WriteOption ${SUBMIT_DIR}/run.card Configuration CumulPeriod ${NewCumulPeriod}
        IGCM_card_WriteOption ${SUBMIT_DIR}/run.card Configuration PeriodDateBegin \
                              $( IGCM_date_HumanDigit ${PeriodDateBegin} )
        IGCM_card_WriteOption ${SUBMIT_DIR}/run.card Configuration PeriodDateEnd \
                              $( IGCM_date_HumanDigit ${PeriodDateEnd} )
        # Update job
        cp Job_${config_UserChoices_JobName} Job_${config_UserChoices_JobName}.old
        sed -e "s/\(#.*Script_Output_${config_UserChoices_JobName}\.\)\([0-9]*\)\(.*\)/\1${Suffix}\3/" \
            Job_${config_UserChoices_JobName} > Job_${config_UserChoices_JobName}.tmp
        mv Job_${config_UserChoices_JobName}.tmp Job_${config_UserChoices_JobName}
      fi
      echo "OK. Now you can submit the Job : ${SUBMIT_DIR}/Job_${config_UserChoices_JobName}."
      ;;
    non|NON|n|no|NO)
      echo "Nothing to do !"
      ;;
  esac

  IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/run.card PostProcessing TimeSeriesCompleted
  if [ ! X${run_PostProcessing_TimeSeriesCompleted} = X ] ; then

    printf "${Green}TimeSeriesCompleted in run.card : ${run_PostProcessing_TimeSeriesCompleted}. Do we need to initialize it? (y/n) ${NoColor}"
    
    read reponse
    case ${reponse} in
    oui|OUI|o|y|yes|YES)
      #Update run.card 
      cp ${SUBMIT_DIR}/run.card ${SUBMIT_DIR}/run.card.old
      IGCM_card_WriteOption ${SUBMIT_DIR}/run.card PostProcessing TimeSeriesCompleted ""
      ;;
    *)
      echo "Nothing to do !"
      ;;
    esac
  fi

else
  echo "You can submit the Job : ${SUBMIT_DIR}/Job_${config_UserChoices_JobName}."
fi

exit 0