# GRAVITY SYNC BY VMSTAN #####################
# gs-validate.sh #############################

# For documentation or downloading updates visit https://github.com/vmstan/gravity-sync
# This code is called from the main gravity-sync.sh file and should not execute directly!

## Validate GS Folders
function validate_gs_folders {
	MESSAGE="Validating ${PROGRAM} Folders on $HOSTNAME"
	echo_stat
		if [ ! -d ${LOCAL_FOLDR} ]
		then
			MESSAGE="Unable to Validate ${PROGRAM} Folders on $HOSTNAME"
			echo_fail
			exit_nochange
		fi
	
		if [ ! -d ${LOCAL_FOLDR}/${BACKUP_FOLD} ]
		then
			MESSAGE="Unable to Validate ${PROGRAM} Backup Folder on $HOSTNAME"
			echo_fail
			exit_nochange
		fi
	echo_good
}

## Validate Pi-hole Folders
function validate_ph_folders {
	MESSAGE="Validating Pi-hole Configuration"
	echo_stat
	
		if [ "$PH_IN_TYPE" == "default" ]
		then
			if [ ! -f ${PIHOLE_BIN} ]
			then
				MESSAGE="Unable to Validate that Pi-Hole is Installed"
				echo_fail
				exit_nochange
			fi
		elif [ "$PH_IN_TYPE" == "docker" ]
		then
			FTLCHECK=$(sudo docker container ls | grep 'pihole/pihole')
			if [ "$FTLCHECK" == "" ]
			then
				MESSAGE="Unable to Validate that Pi-Hole is Installed"
				echo_fail
				exit_nochange
			fi
		fi

		if [ ! -d ${PIHOLE_DIR} ]
		then
			MESSAGE="Unable to Validate Pi-Hole Configuration Directory"
			echo_fail
			exit_nochange
		fi
	echo_good
}

## Validate SQLite3
function validate_sqlite3 {
	MESSAGE="Validating SQLITE Installed on $HOSTNAME"
	echo_stat
		if hash sqlite3 2>/dev/null
		then
			# MESSAGE="SQLITE3 Utility Detected"
			echo_good
		else
			MESSAGE="Unable to Validate SQLITE Install on $HOSTNAME"
			echo_warn

			MESSAGE="Installing SQLLITE3 with ${PKG_MANAGER}"
			echo_stat
			
			${PKG_INSTALL} sqllite3 >/dev/null 2>&1
				error_validate
		fi
}

## Validate SSHPASS
function validate_os_sshpass {
	# SSHPASSWORD=''

	# if hash sshpass 2>/dev/null
    # then
	#	MESSAGE="SSHPASS Utility Detected"
	#	echo_warn
	#		if [ -z "$REMOTE_PASS" ]
	#		then
	#			MESSAGE="Using SSH Key-Pair Authentication"
	#			echo_info
	#		else
	#			MESSAGE="Testing Authentication Options"
	#			echo_stat

	#			timeout 5 ssh -p ${SSH_PORT} -i "$HOME/${SSH_PKIF}" -o StrictHostKeyChecking=no ${REMOTE_USER}@${REMOTE_HOST} 'exit' >/dev/null 2>&1
	#			if [ "$?" != "0" ]
	#			then
	#				SSHPASSWORD="sshpass -p ${REMOTE_PASS}"
	#				MESSAGE="Using SSH Password Authentication"
	#				echo_warn
	#			else
	#				MESSAGE="Valid Key-Pair Detected ${NC}(${RED}Password Ignored${NC})"
	#				echo_info
	#			fi
	#		fi
    # else
    #    SSHPASSWORD=''
	#	MESSAGE="Using SSH Key-Pair Authentication"
	#	echo_info
    # fi
	
	MESSAGE="Validating Connection to ${REMOTE_HOST}"
	echo_stat

	CMD_TIMEOUT='5'
	CMD_REQUESTED="exit"
		create_sshcmd
	
}

## Detect Package Manager
function distro_check { 
	if hash apt-get 2>/dev/null
	then
		PKG_MANAGER="apt-get"
		PKG_INSTALL="sudo apt-get --yes --no-install-recommends --quiet install"
	elif hash rpm 2>/dev/null
	then
		if hash dnf 2>/dev/null
		then
			PKG_MANAGER="dnf"
		elif hash yum 2>/dev/null
		then
			PKG_MANAGER="yum"
		else
			MESSAGE="Unable to find OS Package Manager"
			echo_info
			exit_nochange
		fi
		PKG_INSTALL="sudo ${PKG_MANAGER} install -y"
	else
		MESSAGE="Unable to find OS Package Manager"
		echo_info
		exit_nochange
	fi
}

## Dropbear Warning
function dbclient_warning {
	if hash dbclient 2>/dev/null
	then
		if hash ssh 2>/dev/null
		then
			NOEMPTYBASHIF="1"
		else
			MESSAGE="Dropbear support has been deprecated - please convert to OpenSSH"
			echo_warn
		fi
	fi
}