#!/bin/ksh

#-----------------------------------
function MBG_Initialize
{ 
    IGCM_debug_PushStack "MBG_Initialize"

# Local function to find namelists parameters
supergrep () {
    grep "^ *$1 *=" $2 | sed -e "s% *\!.*%%"
}

    ##--Variables used by MBG --

    # lrsttr    boolean term for tracer model restart (true or false)
    # nrsttr    control of the time step (0, 1 or 2)
    
    ##--Variables used by PISCES --
 
    PAT_TOP_LRSTTR=$( supergrep ln_rsttr                 ${SUBMIT_DIR}/PARAM/namelist_top )
    PAT_TOP_NRSTTR=$( supergrep nrsttr                   ${SUBMIT_DIR}/PARAM/namelist_top )
    PAT_PIS_LRIVER=$( supergrep ln_river                 ${SUBMIT_DIR}/PARAM/namelist_pisces )

    IGCM_debug_PopStack "MBG_Initialize"
}

#-----------------------------------
function MBG_Update
{
    IGCM_debug_PushStack "MBG_Update"


    ##--Write Frequency Purpose
    Nbfreq=$( echo ${config_MBG_WriteFrequency} | wc -w )
    typeset -Z1 i=1
    while [ $i -le ${Nbfreq} ]; do
       topfrequency=$( echo ${config_MBG_WriteFrequency} | awk -v var="$i" "-F " '{print $var}' )
       topfactor=$( echo ${topfrequency} | sed -e "s/[yYmMdD]//" )
       case ${topfrequency} in
         *Y|*y)
            eval PREFIX_WFT${i}=${config_UserChoices_JobName}_${topfactor}y_${DatesPeriod} ;
            eval R_OUT_MBG_WFT${i}=${R_OUT_MBG_O_Y} ;
            eval WFT${i}=${topfactor}Y ;;
         *M|*m)
            eval PREFIX_WFT${i}=${config_UserChoices_JobName}_${topfactor}m_${DatesPeriod} ;
            eval R_OUT_MBG_WFT${i}=${R_OUT_MBG_O_M} ;
            eval WFT${i}=${topfactor}M ;;
         *D|*d)
            eval PREFIX_WFT${i}=${config_UserChoices_JobName}_${topfactor}d_${DatesPeriod} ;
            eval R_OUT_MBG_WFT${i}=${R_OUT_MBG_O_D} ;
            eval WFT${i}=${topfactor}D ;;
         *)
      esac
       let i=$i+1
    done

    ##-- Restart configuration
    if ( [ "${CumulPeriod}" -eq 1 ] && [ "${config_MBG_Restart}" = "n" ] ) ; then

        #echo "NO RESTART FOR TOP"
        TOP_LRSTTR=.FALSE.
        TOP_NRSTTR=0

        PISCES_LRIVER=.FALSE.

    elif ( [ "${CumulPeriod}" -eq 1 ] && [ "${config_MBG_Restart}" = "y" ] ) ; then

        #echo "RESTART TOP"
        TOP_LRSTTR=.TRUE.
        TOP_NRSTTR=0

        PISCES_LRIVER=.TRUE.

    else

        #echo "RESTART TOP"
        TOP_LRSTTR=.TRUE.
        TOP_NRSTTR=2

        PISCES_LRIVER=.TRUE.

    fi

# on force les sorties PISCES comme les sorties OPA

    sed -e "s%${PAT_TOP_LRSTTR}%          ln_rsttr=${TOP_LRSTTR}%"                   \
        -e "s%${PAT_TOP_NRSTTR}%          nrsttr=${TOP_NRSTTR}%"                   \
        namelist_top > namelist_top.tmp

    IGCM_sys_Mv namelist_top.tmp namelist_top

    sed -e "s%${PAT_PIS_LRIVER}%          ln_river=${PISCES_LRIVER}%"                \
        namelist_pisces > namelist_pisces.tmp

    IGCM_sys_Mv namelist_pisces.tmp namelist_pisces


    IGCM_debug_PopStack "MBG_Update"
}

#-----------------------------------
function MBG_Finalize
{
    IGCM_debug_PushStack "MBG_Finalize"

    echo FINALIZE MBG !!!

    IGCM_debug_PopStack "MBG_Finalize"
}