#
# "scanner-script" ("scanner-vendor-script") package
#
# NOTE: This file must be "sourced" (not executed).
#

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

human_readable_name() {
	echo "scanner script package"
}

package_name() {
	echo "scanner"
}

package_suffix(){
	echo "-script"
}

dependencies() {
	echo "scanner"
}

get_missing_requirements() {
	log_variable FORCENOSANE
	if [ -n "${FORCENOSANE}" ] ; then
		echo "sane"
	fi
	if ! PATH=$PATH:/sbin:/usr/sbin ldconfig -p | grep '\<libsane\.so\>' 1>/dev/null 2>&1 ; then
		echo "sane"
	fi
	log_message ""
}

report_missing_requirements() {
	show_nls_message "**** SANE package is currently not installed on your system. Please install it first to install & use scan driver properly."
}

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

# $1 - output file path

generate_smfp_usermap() {
	local VID="$(get_oem_field 'VID')"
	local PIDS="$(get_oem_field 'PIDS')"
	local FILE="$1"
	> ${FILE}
	# Add usb device lines according to predefined pattern
	for PID in $PIDS ; do
		echo "libusbscanner             0x0003      0x${VID}   0x${PID}    0x0000       0x0000       0x00         0x00            0x00            0x00            0x00               0x00               0x00000000" >> ${FILE}
	done
}

trigger_libusbscanner_hotplug() {
	local VID="$(get_oem_field 'VID')"
	local PIDS="$(get_oem_field 'PIDS')"

	log_message "Triggering libusbscanner hotplug script for connected scanners..."
	for PID in $PIDS ; do
		LINE=$(/sbin/lsusb -d 0x$VID:0x$PID)
		if [ $? = 0 ] ; then
			USB_PATH=$(echo $LINE | awk '{print "/proc/bus/usb/"$2"/"$4};')
			USB_PATH=${USB_PATH%%:}
			log_message "Running: ACTION=\"add\" DEVICE=\"${USB_PATH}\" /etc/hotplug/usb/libusbscanner"
			ACTION="add" DEVICE="${USB_PATH}" /etc/hotplug/usb/libusbscanner
		fi
	done
	return 0
}

restart_udev() {
	if ( cat /etc/issue 2>/dev/null | grep -q "Fedora release 9" ); then
		true
	elif udevadm help >/dev/null 2>&1; then
		udevadm control --reload_rules || udevadm control --reload-rules

		local VID="$(get_oem_field 'VID')"
		local PIDS="$(get_oem_field 'PIDS')"
		# reset /dev/usb/lp*
		local usbresetter="${DIST_DIR}/${ARCH_SUBDIR}/usbresetter"
		if [ -f "$usbresetter" ]; then
			log_message "$usbresetter $VID $PIDS "
			"$usbresetter" $VID $PIDS 2>&1 | log_redirected_output
		fi
		if udevadm trigger --help | grep "\--attr-match" >/dev/null 2>&1 ; then
			for pid in $PIDS ; do
				udevadm trigger --action=add --attr-match=idVendor=$VID --attr-match=idProduct=$pid
				log_message "udevadm trigger --action=add --attr-match=idVendor=$VID --attr-match=idProduct=$pid"
			done
		elif udevadm trigger --help | grep "\--subsystem-match" >/dev/null 2>&1 ; then
			udevadm trigger --action=add --subsystem-match=usb --subsystem-match=usb_device
			log_message "udevadm trigger --action=add --subsystem-match=usb --subsystem-match=usb_device"
		else 
			udevadm trigger --action=add
			log_message "udevadm trigger --action=add"
		fi
	elif udevtrigger --help >/dev/null 2>&1; then
		udevcontrol reload_rules
		udevtrigger
		log_message "udevtrigger"
	elif test -f /etc/init.d/udev ; then
		/etc/init.d/udev restart
		log_message "/etc/init.d/udev restart"
	elif test -f /sbin/start_udev ; then
		/sbin/start_udev
		log_message "/sbin/start_udev"
	else
		return 1
	fi
	return 0
}

restart_hal() {
	local HAL_DEMON_NAME_LIST="hal hald haldaemon"
	for i in $HAL_DEMON_NAME_LIST ; do
		local FULL_NAME="/etc/init.d/$i"
		if [ -f "$FULL_NAME" ]; then
			"$FULL_NAME" restart 2>&1 | log_redirected_output
		fi
	done
}

# $1 - template path
# $2 - output file name
fill_full_template() {

	# teplate files can use tab() function
	# to insert '\t' symbol
	tab2() {
	# $1 - number of tabs inserted
		local amount=$1
		if [ -z "$amount" ] ; then
			amount="1";
		fi
		for i in $(seq 1 $amount) ; do
			echo -n "    "
		done
	}
	tab() {
	# $1 - number of tabs inserted
		local amount=$1
		if [ -z "$amount" ] ; then
			amount="1";
		fi
		for i in $(seq 1 $amount) ; do
			echo -n "    "
		done
	}

	local template="$1"
	local output="$2"

	[ -z "$template" -o -z "$output" ] && return 1

	local tmp_file=$(mktemp -t tmp_file.XXXX)

	local VID="$(get_oem_field "VID")"
	local PIDS="$(get_oem_field "PIDS")"

	while read line; do
		eval echo \"$line\" >> "$tmp_file"
	done < "$template"
	install_p "$tmp_file" "$output"
	rm "$tmp_file"
}


sane_config() {
	echo "/etc/sane.d/smfp-${VENDOR_LC}.conf"
}

find_sane_udev_rule_number() {
	local RULES
	local NUMBER
	local NUM
	local RULE
	local CUT1

	RULES=$(ls /etc/udev/rules.d/*sane*.rules /lib/udev/rules.d/*sane*.rules 2>/dev/null)
	NUMBER=100
	for RULE in ${RULES}
	do
		RULE=$(basename ${RULE})
		CUT1=$(echo ${RULE} | cut -f1 -d'-')
		if [ ${#RULE} -ne ${#CUT1} ]; then
			NUM=$CUT1		
		else
			CUT1=$(echo ${RULE} | cut -f1 -d'_')
			if [ ${#RULE} -ne ${#CUT1} ]; then
				NUM=$CUT1
			fi
		fi
		if [ ${NUMBER} -gt ${NUM} ]; then
			NUMBER=${NUM}
		fi
	done
	RULE_NUMBER=$((NUMBER-1))
}

udev_rules() {
	local RULE_NUMBER
	find_sane_udev_rule_number
	log_variable RULE_NUMBER
	echo "/etc/udev/rules.d/${RULE_NUMBER}-smfp_${VENDOR_LC}.rules"
}

hal_rules() {
	echo "/usr/share/hal/fdi/policy/10osvendor/01_smfp_${VENDOR_LC}.fdi"
}

install_base_files() {
	## packet specific files

	install_p "$DIST_SANE_CONFIG_FILE" $(sane_config)

	fill_full_template "$DIST_UDEV_RULES_FILE_IN" $(udev_rules)
	fill_full_template "$DIST_HAL_RULES_FILE_IN" $(hal_rules)

	mkdir_p "${INSTALL_DIR}/share"
	install_p "${OEM_FILE}" "${INSTALL_DIR}/share/"
}

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

do_install() {
	log_message "installing '${VENDOR_LC}'/'$(package_name)' package"

	local TEMP_LOG_FILE=`mktemp -t temp.log.XXX`
	log_variable TEMP_LOG_FILE

	install_base_files 2>&1 | log_redirected_output

	restart_hal 2>&1 | log_redirected_output

	show_nls_message "**** Restarting udev ..."
	if ! restart_udev >"${TEMP_LOG_FILE}" 2>&1 ; then
		cat "${TEMP_LOG_FILE}" | log_redirected_output
		show_nls_message "**** Failure to restart udev"
	fi

	if [ -f /etc/hotplug/usb/libusbscanner ] ; then
		USERMAP="/etc/hotplug/usb/libsane-smfp-${VENDOR_LC}.usermap"
		log_message "Generating ${USERMAP}..."
		generate_smfp_usermap "${USERMAP}"
		trigger_libusbscanner_hotplug
	fi

	rm -f "${TEMP_LOG_FILE}" 1>/dev/null 2>&1

	return 0
}

do_uninstall() {
	log_message "uninstalling '${VENDOR_LC}'/'$(package_name)' package"

	local TEMP_LOG_FILE=`mktemp -t temp.log.XXX`
	log_variable TEMP_LOG_FILE

	restart_hal 2>&1 | log_redirected_output

	show_nls_message "**** Restarting udev ..."
	if ! restart_udev >"${TEMP_LOG_FILE}" 2>&1 ; then
		cat "${TEMP_LOG_FILE}" | log_redirected_output
		show_nls_message "**** Failure to restart udev"
	fi
	if [ -f /etc/hotplug/usb/libusbscanner ] ; then
		USERMAP="/etc/hotplug/usb/libsane-smfp-${VENDOR_LC}.usermap"
		log_message "Removing ${USERMAP}"
		rm -f "${USERMAP}"
	fi

	rm -f "${TEMP_LOG_FILE}" 1>/dev/null 2>&1

	return 0
}

package_init() {
	# TODO: put here real path
	# now try to find smfp.conf in uld/noarch
	DIST_SANE_CONFIG_FILE="${DIST_DIR}/noarch/etc/smfp.conf"
	DIST_UDEV_RULES_FILE_IN="${DIST_DIR}/noarch/etc/smfp.rules.in"
	DIST_HAL_RULES_FILE_IN="${DIST_DIR}/noarch/etc/smfp.fdi.in"
}