#! /bin/zsh

# We use zsh here to support floats (not supported in bash)

# This script produces the .dsfs files for the runs from `build_LiebLin_catalogue_k_range`
# runs which achieved the required sumrule saturation.

if [[ $# -ne 5 ]]; then
    echo "Arguments needed: whichDSF, kBT, target_sumrule, nkmax (max momentum in units of kF/4), width."
    exit 1
fi

if [[ $1 != 'd' && $1 != 'g' && $1 != 'o' ]]; then
    echo "Only the d, g and o scanning options are implemented."
    exit 1
fi

if [[ $2 -lt 0 ]]; then
    echo "Temperature kBT must be > 0."
    exit 1
fi

if [[ $3 -lt 0 || $3 -gt 1 ]]; then
    echo "Requirement: 0 < target_sumrule < 1."
    exit 1
fi

if [[ $4 -lt 0 ]]; then
    echo "nkmax must be > 0."
    exit 1
fi

if [[ $5 -lt 0 ]]; then
    echo "width must be > 0."
    exit 1
fi

whichDSF=$1
kBT=$2
target_sumrule=$3
nkmax=$4
width=$5

correlator='rho-rho'
if [[ $whichDSF == 'o' ]]; then
    correlator='psidag-psi'
elif [[ $whichDSF == 'g' ]]; then
    correlator='psi-psidag'
fi

clist=(1024 512 256 128 64 32 16 8 4 2 1 0.5 0.25 0.125 0.0625 0.03125 0.015625)

basedir="$(pwd)"

ommin=0
ommax=$(($nkmax*($nkmax - 8))) # use lower branch of 1ph continuum
Nom=1000

for c in $clist
do
    echo 'Starting computation of DSFs for c =' $c
    dir='Lieb-Liniger/'$correlator'/T_'$kBT'/c_fixed/c_'$c'/k_range/k_0_to_'${(l:2::0:)nkmax}'kFo4/sr_'$target_sumrule'/store/data'
    cd $dir
    for datadir in *
    do
	cd $datadir
	N=${datadir#"N_"}
	iKmax=$(($nkmax * $N/8))
	Smoothen_LiebLin_DSF_Scaled $whichDSF $c $N $N 0 $iKmax $kBT 0 $ommin $ommax $Nom $width
	cd ..
    done
    cd $basedir
    echo ' Successfully computed DSFs for c =' $c
done