#!/bin/bash
FOLDER='planet_EMC1.1.0'
ARCHIVE='planet_EMC1.1.0.tgz'

LOCAL=$('pwd')

isknown()
{
    zb='0B'
    read command
    whereis $command > ./tmp
    du -sh ./tmp > ./tmp2
    while read line
    do
      str=$line
    done < "./tmp2"
    if echo "$str" | grep -q "$zb" ; then
	echo false
    else
	echo true
    fi
}

minimum_version=2
# Since Chet Ramey is constantly adding features to Bash,
# you may set $minimum_version to 2.XX, 3.XX, or whatever is appropriate.
E_BAD_VERSION=80

if [ "$BASH_VERSION" \< "$minimum_version" ]
then
  echo "This script works only with Bash, version $minimum or greater."
  echo "Upgrade strongly recommended."
  exit $E_BAD_VERSION
fi

i_f77=$( isknown <<EOF
f77
EOF )
i_g77=$( isknown <<EOF
g77
EOF )
i_pgf77=$( isknown <<EOF
pgf77
EOF )
i_pgf90=$( isknown <<EOF
pgf90
EOF )
i_f95=$( isknown <<EOF
f95
EOF )
i_ifort=$( isknown <<EOF
ifort
EOF )

rm -f ./tmp
rm -f ./tmp2

if [[ ($i_f77 == "false" ) && ( $i_g77 == "false" ) && ( $i_pgf77 == "false" ) && ( $i_pgf90 == "false" ) && ( $i_f95 == "false" ) && ( $i_ifort == "false" ) ]]
then
	echo "No fortran compiler was found"
	exit 0
elif [[ $i_f77 == "true" ]]
then
	echo "Fortran compiler found: f77"
elif [[ $i_g77 == "true" ]]
then
	echo "Fortran compiler found: g77"
elif [[ $i_pgf77 == "true" ]]
then
	echo "Fortran compiler found: pgf77"
elif [[ $i_pgf90 == "true" ]]
then
	echo "Fortran compiler found: pgf90"
elif [[ $i_f95 == "true" ]]
then
	echo "Fortran compiler found: f95"
elif [[ $i_ifort == "true" ]]
then
	echo "Fortran compiler found: ifort"
fi

if [ -e $FOLDER ]
then
	echo "Directory already exists:"
	echo $FOLDER
	echo "Please erase it and try again"
	exit 0
else
	if [ ! -f $ARCHIVE ]
	then
		echo "$ARCHIVE does not exists in the current directory"
		echo "installation failed"
		exit 0
	else
		echo "+ Uncompressing file $ARCHIVE..."
		tar -zxvf ${ARCHIVE} > /dev/null
		echo "...done"
		echo "The archive was extracted in: ./"$FOLDER
		cd $FOLDER/data

		echo ""
		echo "+ Compiling program make_cloud_data.exe"
		if [[ $i_f77 == "true" ]]
		then
			./f0_f77
		elif [[ $i_g77 == "true" ]]
		then
			./f0_g77
		elif [[ $i_pgf77 == "true" ]]
		then
			./f0_pgf77
		elif [[ $i_pgf90 == "true" ]]
		then
			./f0_pgf90
		elif [[ $i_f95 == "true" ]]
		then
			./f0_f95
		elif [[ $i_ifort == "true" ]]
		then
			./f0_ifort
		fi

		if [ ! -f make_cloud_data.exe ]
		then
			echo 'Error: make_cloud_data.exe could not be compiled'
		else
			echo ""
			echo "+ Running program make_cloud_data.exe"
			./make_cloud_data.exe
		fi


		echo ""
		echo "+ Compiling program make_grid.exe"
		if [[ $i_f77 == "true" ]]
		then
			./f1_f77
		elif [[ $i_g77 == "true" ]]
		then
			./f1_g77
		elif [[ $i_pgf77 == "true" ]]
		then
			./f1_pgf77
		elif [[ $i_pgf90 == "true" ]]
		then
			./f1_pgf90
		elif [[ $i_f95 == "true" ]]
		then
			./f1_f95
		elif [[ $i_ifort == "true" ]]
		then
			./f1_ifort
		fi

		if [ ! -f make_grid.exe ]
		then
			echo 'Error: make_grid.exe could not be compiled'
		else
			echo ""
			echo "+ Running program make_grid.exe"
			./make_grid.exe
		fi


		echo ""
		echo "+ linking files"
		cd ..
		cd $LOCAL
		rm -f ${ARCHIVE}
		rm -f install_planet_EMC.bash
	fi
fi

echo ""
echo "Use documentation file ./$FOLDER/Doc/manual.pdf if needed"

exit 0