#!/bin/ksh
#-----------------------------------------------------------------
function LMDZ_sed
{
    IGCM_debug_PushStack "LMDZ_sed"

    sed -e "s/^${2}\ *=.*/${2}= ${3}/" ${1} > ${1}.tmp
    RET=$?
    echo "LMDZ_sed : ${1} ${2} ${3}"
    \mv ${1}.tmp ${1}

    IGCM_debug_PopStack "LMDZ_sed"
    return $RET
}

function ATM_Initialize
{
    IGCM_debug_PushStack "ATM_Initialize"

    RESOL_ATM=$( echo $RESOL | awk "-Fx" '{print $2}' | awk "-F-" '{print $1}')

    [ -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}' )

    ##-- Calendar type for LMDZ
    case ${config_UserChoices_CalendarType} in
        leap|gregorian)
            CalendarTypeForLmdz=earth_366d;;
        noleap)
            CalendarTypeForLmdz=earth_365d;;
        360d)
            CalendarTypeForLmdz=earth_360d;;
        *)
            CalendarTypeForLmdz=earth_360d
    esac

    ##--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
		OK_instan=y
		;;
	esac
    done

    ## Read LMDZ_NbPeriod_adjust option in lmdz.card 
    IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/COMP/lmdz.card UserChoices LMDZ_NbPeriod_adjust
    LMDZ_NbPeriod_adjust=${lmdz_UserChoices_LMDZ_NbPeriod_adjust}

    if [ ${LMDZ_NbPeriod_adjust} -eq 0 ] ; then
        IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/COMP/lmdz.card UserChoices LMDZ_Bands_file_name
        LMDZ_Bands_file_name=${lmdz_UserChoices_LMDZ_Bands_file_name}
    fi

    ##  Read LMDZ_Freq_aero and LMDZ_Length_aero in lmdz.card
    LMDZ_Freq_aero=${lmdz_UserChoices_LMDZ_Freq_aero}
    LMDZ_Length_aero=${lmdz_UserChoices_LMDZ_Length_aero}

    ##  Read LMDZ_COSP_monthly  LMDZ_COSP_daily and LMDZ_COSP_hf in lmdz.card
    LMDZ_COSP_OK=${lmdz_UserChoices_LMDZ_COSP_OK}
    LMDZ_COSP_monthly=${lmdz_UserChoices_LMDZ_COSP_monthly}
    LMDZ_COSP_daily=${lmdz_UserChoices_LMDZ_COSP_daily}
    LMDZ_COSP_hf=${lmdz_UserChoices_LMDZ_COSP_hf}

    ##  Read LMDZ_NMC_monthly  LMDZ_NMC_daily and LMDZ_NMC_hf in lmdz.card
    LMDZ_NMC_monthly=${lmdz_UserChoices_LMDZ_NMC_monthly}
    LMDZ_NMC_daily=${lmdz_UserChoices_LMDZ_NMC_daily}
    LMDZ_NMC_hf=${lmdz_UserChoices_LMDZ_NMC_hf}

    IGCM_debug_PopStack "ATM_Initialize"
}

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

    case ${config_UserChoices_PeriodLength} in
        *Y|*y) 
               LMDZ_ecrit_mth=30. 
               LMDZ_ecrit_ISCCP=30.
               LMDZ_periodav=30.
               if [ "${config_UserChoices_CalendarType}" != "360d" ] ; then
                  echo Change calendartype in config.card. PeriodLength=1Y allowed only for CalendarType=360d 
                  exit
               fi
               ;;
        *)
               LMDZ_ecrit_mth=${PeriodLengthInDays}.
               LMDZ_ecrit_ISCCP=${PeriodLengthInDays}.
               LMDZ_periodav=${PeriodLengthInDays}.
               ;;
    esac

    ##-- 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

    ## To have more variables in output files for aerosols. Parameters are set in lmdz.card
    #if [ ${CumulPeriod}%${LMDZ_Freq_aero} -le ${LMDZ_Length_aero} ]; then
    #   if [ ${CumulPeriod}%${LMDZ_Freq_aero} -ne 0 ]; then 
    #      lev_histmth=4
    #   else
    #      lev_histmth=2    
    #   fi
    #else
    #   lev_histmth=2
    #fi    

    ## algo : For CumulPeriod=1 ; 
    ##        IF NbPeriod_Adjust = 0, Get Bands file directly from server, store it with _0 suffix
    ##        ELSE LMDZ_adjust=y ; save Bands file on file server ;
    ##        For CumulPeriod=2 to LMDZ_NbPeriod_adjust ; Get Bands file from server (CumulPeriod-1) ; LMDZ_adjust=y ; save Bands file on file server ;
    ##        For CumulPeriod > LMDZ_NbPeriod_adjust ; LMDZ_adjust=n ; Get Bands file from server (CumulPeriod=LMDZ_NbPeriod_adjust 0 to force it) ; Use Bands ;

    if [ ${CumulPeriod} -eq 1 ] ; then
        if [ ${LMDZ_NbPeriod_adjust} -eq 0 ] ; then
            IGCM_sys_Get ${LMDZ_Bands_file_name} Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat ; IGCM_sys_Chmod u+w Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat
            IGCM_sys_Put_Out Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat ${R_OUT_ATM_D}/${config_UserChoices_JobName}_Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat_0
            IGCM_debug_Print 1 "Bands file forced to ${LMDZ_Bands_file_name} and stored in ${config_UserChoices_JobName}_Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat_0"
        fi
    fi

    LMDZ_adjust=n
    [ ${CumulPeriod} -le ${LMDZ_NbPeriod_adjust} ] && LMDZ_adjust=y

    RefPeriod=${LMDZ_NbPeriod_adjust} #0 to use a Bands file from Restart
    [ ${CumulPeriod} -le ${LMDZ_NbPeriod_adjust} ] && (( RefPeriod = ${CumulPeriod} - 1 )) 

    [ ${CumulPeriod} -gt 1 ] && ( IGCM_sys_Get ${R_OUT_ATM_D}/${config_UserChoices_JobName}_Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat_${RefPeriod} Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat ; IGCM_sys_Chmod u+w Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat )

    ##-- GHG forcing for the current year
    IPCC_SOLAR=`grep Annee_${year} SOLAR_1765_2500.txt | awk -F= '{print $2}'`
    IPCC_CO2=`grep Annee_${year} CO2_1765_2500.txt | awk -F= '{print $2}'`
    IPCC_CH4=`grep Annee_${year} CH4_1765_2500.txt | awk -F= '{print $2}'`
    IPCC_N2O=`grep Annee_${year} N2O_1765_2500.txt | awk -F= '{print $2}'`
    IPCC_CFC11=`grep Annee_${year} CFC11_1765_2500.txt | awk -F= '{print $2}'`
    IPCC_CFC12=`grep Annee_${year} CFC12_1765_2500.txt | awk -F= '{print $2}'`

    ## physiq.def parameters modified from initial physiq_L${RESOL_ATM_Z}
    LMDZ_sed physiq.def OK_instan   ${OK_instan}
    LMDZ_sed physiq.def OK_journe   ${OK_journe}
    LMDZ_sed physiq.def OK_mensuel  ${OK_mensuel}
    #LMDZ_sed physiq.def lev_histmth ${lev_histmth}
    LMDZ_sed physiq.def ok_hf       ${ok_hf}
    LMDZ_sed physiq.def ecrit_mth   ${LMDZ_ecrit_mth}
    LMDZ_sed physiq.def ecrit_ISCCP ${LMDZ_ecrit_ISCCP}
    LMDZ_sed physiq.def ok_cosp     ${LMDZ_COSP_OK}
    LMDZ_sed physiq.def ok_mensuelCOSP  ${LMDZ_COSP_monthly}
    LMDZ_sed physiq.def ok_journeCOSP   ${LMDZ_COSP_daily}
    LMDZ_sed physiq.def ok_hfCOSP   ${LMDZ_COSP_hf}
    LMDZ_sed physiq.def ok_histNMC  "${LMDZ_NMC_monthly}, ${LMDZ_NMC_daily}, ${LMDZ_NMC_hf}"
    LMDZ_sed physiq.def solaire     ${IPCC_SOLAR}
    LMDZ_sed physiq.def co2_ppm     ${IPCC_CO2}
    LMDZ_sed physiq.def CH4_ppb     ${IPCC_CH4}
    LMDZ_sed physiq.def N2O_ppb     ${IPCC_N2O}
    LMDZ_sed physiq.def CFC11_ppt   ${IPCC_CFC11}
    LMDZ_sed physiq.def CFC12_ppt   ${IPCC_CFC12}

    ## gcm.def parameters : no change since gcm.def_${RESOL_ATM_3D} is used and already modified

    ## run.def parameters
    LMDZ_sed run.def dayref   ${InitDay}
    LMDZ_sed run.def anneeref ${InitYear}
    LMDZ_sed run.def calend   ${CalendarTypeForLmdz}
    LMDZ_sed run.def nday     ${PeriodLengthInDays}
    LMDZ_sed run.def raz_date ${RAZ_DATE}
    LMDZ_sed run.def periodav ${LMDZ_periodav}
    LMDZ_sed run.def adjust   ${LMDZ_adjust}

    ## Read ByPass_hgardfou_teta option in lmdz.card --> divide teta* by 2 if [ $ByPass_hgardfou_teta = 1 ]
    IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/COMP/lmdz.card UserChoices ByPass_hgardfou_teta
    ByPass_hgardfou_teta=${lmdz_UserChoices_ByPass_hgardfou_teta}
    if [ ${ByPass_hgardfou_teta} = y ] ; then
	awk '{ if ($0 ~ /^teta.*=/) {split($0,a,"=") ; print a[1]"="a[2]/2"."} else print $0}' gcm.def > gcm.def.tmp
	IGCM_sys_Mv gcm.def.tmp gcm.def
	echo
	IGCM_debug_Print 1 "ByPass_hgardfou_teta : ^teta*/2 in gcm.def"
	echo
	cat gcm.def
	ByPass_hgardfou_teta=n
	IGCM_card_WriteOption ${SUBMIT_DIR}/COMP/lmdz.card UserChoices ByPass_hgardfou_teta "${ByPass_hgardfou_teta}"
    fi

    ## Read ByPass_hgardfou_mats option in lmdz.card --> purmats=y 2 if [ $ByPass_hgardfou_mats = 1 ]
    IGCM_card_DefineVariableFromOption ${SUBMIT_DIR}/COMP/lmdz.card UserChoices ByPass_hgardfou_mats
    ByPass_hgardfou_mats=${lmdz_UserChoices_ByPass_hgardfou_mats}
    if [ ${ByPass_hgardfou_mats} = y ] ; then
	sed -e "s/^purmats=.*/purmats=y/" gcm.def > gcm.def.tmp
        IGCM_sys_Mv gcm.def.tmp gcm.def
        echo
        IGCM_debug_Print 1 "ByPass_hgardfou_mats : purmats=y in gcm.def"
        echo
        cat gcm.def
        ByPass_hgardfou_mats=n
        IGCM_card_WriteOption ${SUBMIT_DIR}/COMP/lmdz.card UserChoices ByPass_hgardfou_mats "${ByPass_hgardfou_mats}"
    fi

    if ( ${FirstInitialize} ) ; then

	if ( [ "${config_Restarts_OverRule}" = "n" ] && [ "${config_ATM_Restart}" = "n" ] ); then
	    if [ ${DRYRUN} -le 2 ] ; then
                ##-- suppression of ozone file construction --
                cp physiq.def physiq.def.save
                LMDZ_sed physiq.def read_climoz 0
		IGCM_sys_Cp ${R_EXE}/create_etat0_limit.e ${RUN_DIR}/.
		if [ ${DRYRUN} -le 1 ] ; then
		    ${HOST_MPIRUN_COMMAND} -np 1 ./create_etat0_limit.e
                    IGCM_sys_Put_Out start.nc    ${R_OUT_ATM_R}/${config_UserChoices_JobName}_${PeriodDateBegin}_start.nc
                    IGCM_sys_Put_Out startphy.nc ${R_OUT_ATM_R}/${config_UserChoices_JobName}_${PeriodDateBegin}_startphy.nc
		fi
                IGCM_sys_Mv physiq.def.save physiq.def
	    else
		echo "EXECUTION of ${HOST_MPIRUN_COMMAND} -np 1 ./create_etat0_limit.e simulated"
		echo "EXECUTION of ${HOST_MPIRUN_COMMAND} -np 1 ./create_etat0_limit.e simulated for DRYRUN = " $DRYRUN >> stack
	    fi
	fi

    fi

    IGCM_debug_PopStack "ATM_Update"
}

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

    [ ${CumulPeriod} -le ${LMDZ_NbPeriod_adjust} ] && IGCM_sys_Put_Out Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat ${R_OUT_ATM_D}/${config_UserChoices_JobName}_Bands_${RESOL_ATM_3D}_${NUM_PROC_ATM}prc.dat_${CumulPeriod}

    echo FINALIZE ATM !

    IGCM_debug_PopStack "ATM_Finalize"
}