# $Id$
#
#!/bin/ksh
#-----------------------------------------------------------------
function ATM_Initialize
{
    IGCM_debug_PushStack "ATM_Initialize"

    RESOL_ATM=${RESOL}

    [ -f ${SUBMIT_DIR}/../.resol ] && eval $(grep RESOL_ATM_3D ${SUBMIT_DIR}/../.resol) || RESOL_ATM_3D=96x95x19
    RESOL_ATM_Z=$( echo $RESOL_ATM_3D | awk "-Fx" '{print $3}' )

    ##- Create_etat0_limit version
    IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/COMP/lmdz.card UserChoices CREATE
    CREATE=${lmdz_UserChoices_CREATE}
    echo create_etat0_limit version : ${CREATE}

    ##- Parameter files directory
    IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/COMP/lmdz.card UserChoices PARAM
    PARAM=${lmdz_UserChoices_PARAM}
    echo Parameter files directory : ${PARAM}

    ##- Default number of processor for lmdz
    NUM_PROC_ATM=1
    if [ X"${BATCH_NUM_PROC_TOT}" != X ] ; then
	NUM_PROC_ATM=${BATCH_NUM_PROC_TOT}
    fi
 
    ##--Frequency purpose ....
    ##--  Initialisation  ....
    OK_instan=n
    OK_journe=n
    OK_mensuel=n
    ok_hf=n

    case ${config_UserChoices_PeriodLength} in
	1Y|1y|1M|1m) OK_mensuel=y ;;
	5D|5d|1D|1d) OK_journe=y ;;
    esac

    for frequency in ${config_ATM_WriteFrequency} ; do
	case ${frequency} in
	    5D|5d|1D|1d) OK_journe=y ;;
	esac
	case ${frequency} in
	    HF|hf) ok_hf=y ;;
	esac
    done

    ##--Variables used by LMDZ in gcm.def --
    PAT_iphysiq=$(  grep -v ^# ${SUBMIT_DIR}/${PARAM}/gcm.def_${RESOL_ATM_3D} | grep iphysiq  )
    PAT_iperiod=$(  grep -v ^# ${SUBMIT_DIR}/${PARAM}/gcm.def_${RESOL_ATM_3D} | grep iperiod  )

    ## Read LMDZ_adjust option in ${compname}.card --> put adjust=y and save Bands_*.dat in ${SUBMIT_DIR}/${PARAM}
    IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/COMP/${compname}.card UserChoices LMDZ_adjust
    eval LMDZ_adjust=\${${compname}_UserChoices_LMDZ_adjust} > /dev/null 2>&1

    ##-- This could be define in lmdz.card, inside section [UserChoices]
    ##-- Otherwise we get the value in *.def
    iperiod=$( echo ${PAT_iperiod} | awk -F= '{print $2}' )
    iphysiq=$( echo ${PAT_iphysiq} | awk -F= '{print $2}' )
    # day_step : number of steps per day (multiple of iperiod and iphysiq)
    (( day_step = 48 * iphysiq ))
    
    IGCM_debug_PopStack "ATM_Initialize"
}

#-----------------------------------------------------------------
function ATM_Update
{
    IGCM_debug_PushStack "ATM_Update"

    ##-- Remise ou non a zero de la date initiale de LMDZ pour le fichier run.def
    if [ ${CumulPeriod} -eq 1 ] ; then
	RAZ_DATE=1
    else
	RAZ_DATE=0
    fi

    ## Mise en forme du fichier physiq.def
    sed -e "s/_ok_instan_/${OK_instan}/"              \
	-e "s/_ok_journe_/${OK_journe}/"              \
	-e "s/_ok_mensuel_/${OK_mensuel}/"            \
	-e "s/_ok_hf_/${OK_hf}/"                      \
	physiq.def > physiq.def.tmp
    IGCM_sys_Mv physiq.def.tmp physiq.def

    ## Mise en forme du fichier gcm.def
    sed -e "s/_day_step_/${day_step}/"                \
	-e "s/${PAT_iperiod}/iperiod=${iperiod}/"     \
	-e "s/${PAT_iphysiq}/iphysiq=${iphysiq}/"     \
	gcm.def > gcm.def.tmp
    IGCM_sys_Mv gcm.def.tmp gcm.def

    ## Mise en forme du fichier run.def
    sed -e "s/_dayref_/${InitDay}/"                    \
	-e "s/_anneeref_/${InitYear}/"                 \
	-e "s/_nday_/${PeriodLengthInDays}/"           \
	-e "s/_raz_date_/${RAZ_DATE}/"                 \
	-e "s/_adjust_/${LMDZ_adjust}/"                \
	run.def > run.def.tmp
    IGCM_sys_Mv run.def.tmp run.def

    IGCM_debug_PopStack "ATM_Update"
}

#-----------------------------------
function ATM_Finalize
{
    IGCM_debug_PushStack "ATM_Finalize"

    [ ${LMDZ_adjust} = y ] && IGCM_sys_Cp Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat ${SUBMIT_DIR}/${PARAM}

    echo FINALIZE ATM !

    IGCM_debug_PopStack "ATM_Finalize"
}