#!/bin/bash


############################################
ACTION="$1"
PKG="$2"

USERHOME=$(getent passwd $USER | cut -f6 -d ':')
CLIENT_N4D_VARS="/var/lib/n4d/variables-dir/REMOTE_VARIABLES_SERVER"
CLIENT_BASE_DIR="/JClic/projects"
CLIENT_JCLIC_DIR="/JClic"
SERVER_BASE_DIR="/net/server-sync/share/jclic-aula/jclic_uploads"
SERVER_N4D_VARS="/var/lib/n4d/variables-dir/LDAP_BASE_DN"
TEUMESTRE="elteumestre_JClic_Infantil_Primaria_17"

IMAGENES_EL_TEU="http://www.lliurex.net/recursos/"
PACK_EL_TEU="elteumestre_JClic_Infantil_Primaria_17.zip"
DESTDOWNLOAD="/var/cache/epi-downloads"

TDESKTOP=0
TSERVER=1
TCLIENT=2

###########################################


lliurex-version -t client

if [ "$?" == 0 ];then
	TYPE=$TCLIENT

else
	lliurex-version -t desktop	

	if [ "$?" == 0 ];then
		TYPE=$TDESKTOP
	else
		TYPE=$TSERVER
	fi	
fi	


if [ $TYPE == $TSERVER ];then
	INSTALL_DIR=$SERVER_BASE_DIR
else	
	INSTALL_DIR=$USERHOME$CLIENT_BASE_DIR
fi	

PATH_INSTALLED=$INSTALL_DIR/$TEUMESTRE

case $ACTION in

	getStatus)
		case $PKG in
			elteumestre_JClic)
				
				if [ -d ${PATH_INSTALLED} ]; then
					echo 0
				else
					echo 1
				fi
			;;
		esac						
				
	;;


	preInstall)

		echo "Checking downloaded file..."
		
		LANGUAGE=en wget --spider -o /tmp/jclic_length.log "$IMAGENES_EL_TEU""$PACK_EL_TEU"
		LENGTH_ORIG=$( cat /tmp/jclic_length.log | grep Length | awk '{print $2}' )
		LENGTH_DOWNLOAD=$( ls -l $DESTDOWNLOAD/$PACK_EL_TEU 2>/dev/null  | awk '{print $5}' )

		if [ "$LENGTH_ORIG" != "$LENGTH_DOWNLOAD" ]; then

			echo "Downloaded file is not valid"
			exit 1

		fi	
		
	;;
	
	installPackage)

	
		echo "Checking downloaded file extension..."

		EXT=$( ls $DESTDOWNLOAD/$PACK_EL_TEU | rev | cut -d "." -f 1 | rev )	

		if [ "$EXT" != "zip" ] && [ "$EXT" != "gz" ]; then
			echo "Downloaded file extension is not correct. Jclic needs zip or tar extension and file downloaded has $EXT extension"
			exit 1
		
		else
			if [ ! -d "$INSTALL_DIR" ]; then
				echo "Creating directory for install JClic biblio..."
				mkdir -p "$INSTALL_DIR"
			else
				if [ -d "$PATH_INSTALLED" ]; then
					echo "Jclic biblio already exists. It is deleted to reinstall..."	
					rm -R $PATH_INSTALLED
				fi	
		
			fi

			echo "Uncompresing JClic biblio..."
			case $EXT in

				"zip")
					
					unzip $DESTDOWNLOAD/$PACK_EL_TEU -d "$INSTALL_DIR" 

					# Error code 2 is generic error, processing may have completed successfully
					result=$?
					if [ "$result" != 0 ];then
						if  [ "$result" != 2 ];then
							echo "Jclic biblio cannot be installed in your system, because the uncompressing fail"
							exit 1
						fi	
							
					fi
					

					if [ -d "$PATH_INSTALLED" ]; then
						chmod -R 755 $INSTALL_DIR
						if [ $TYPE != 1 ];then
							USER_GR=$(id -g -n ${USER})
							chown -R ${USER}:${USER_GR} $USERHOME/$CLIENT_JCLIC_DIR
						fi	
					else
						echo "Jclic biblio cannot be installed in your system, because the uncompressing fail"
						exit 1
					fi		

				;;

				"gz")
					tar -xvf $DESTDOWNLOAD/$PACK_EL_TEU -C "$INSTALL_DIR"
					
					if [ "$?" != 0 ];then
						echo "Jclic biblio cannot be installed in your system, because the uncompressing fail"
						exit 1
					fi

					
					if [ -d "$PATH_INSTALLED" ]; then
						chmod -R 755 $INSTALL_DIR
						if [ $TYPE != 1 ];then
							USER_GR=$(id -g -n ${USER})
							chown -R ${USER}:${USER_GR} $USERHOME/$CLIENT_JCLIC_DIR
						fi	
					else
						echo "Jclic biblio cannot be installed in your system, because the uncompressing fail"
						exit 1
					fi		
				;;

			esac
			
		fi
	;;	

	remove)


		if [ -d "$PATH_INSTALLED" ]; then
			echo "Removing Jclic biblio..."	
			rm -R $PATH_INSTALLED
		fi	
		
		if [ "$?" != 0 ];then
			echo "Unable to remove Jclic biblio..."
			exit 1
		fi

	;;			
esac

exit 0