#!/bin/sh

if [ -z "$secondstage" ]; then
ZAF_CFG_FILE="/etc/zaf.conf"
	if [ -f $ZAF_CFG_FILE ]; then
		. $ZAF_CFG_FILE
	else
		echo "Missing config file $ZAF_CFG_FILE! Exiting."
		exit 2
	fi

	# Read options as config for ZAF
	for pair in "$@"; do
			if echo $pair | grep -qE '^ZAF\_(.*)='; then
				option=$(echo $pair|cut -d '=' -f 1)
				value=$(echo $pair|cut -d '=' -f 2-)
				eval "${option}='$value'"
			export secondstage=1
			else
			params="$params $pair"
			fi
	done
	export $(set |grep ^ZAF_ | cut -d '=' -f 1)
	# If some variables in cmd were stripped, rerun only with right arguments and exported variables
	[ -n "$secondstage" ] && exec $0 $params
fi

export ZAF_BIN=$(realpath $0)

if [ -n "$ZAF_PROXY" ]; then
	export ALL_PROXY="$ZAF_PROXY"
	export http_proxy="$ZAF_PROXY"
	export https_proxy="$ZAF_PROXY"
fi

if [ -f ./lib/zaf.lib.sh ]; then
. ./lib/zaf.lib.sh
. ./lib/plugin.lib.sh
. ./lib/os.lib.sh
. ./lib/ctrl.lib.sh
. ./lib/cache.lib.sh
. ./lib/zbxapi.lib.sh
[ -f ./lib/zaf.${ZAF_OS}.sh ] && . ./lib/zaf.${ZAF_OS}.sh
else 
. ${ZAF_LIB_DIR}/zaf.lib.sh
. ${ZAF_LIB_DIR}/plugin.lib.sh
. ${ZAF_LIB_DIR}/os.lib.sh
. ${ZAF_LIB_DIR}/ctrl.lib.sh
. ${ZAF_LIB_DIR}/cache.lib.sh
. ${ZAF_LIB_DIR}/zbxapi.lib.sh
[ -f ${ZAF_LIB_DIR}/zaf.${ZAF_OS}.sh ] && . ${ZAF_LIB_DIR}/zaf.${ZAF_OS}.sh
fi

zaf_debug_init stderr
zaf_tmp_init
zaf_cache_init

case $1 in

cache-clean)
	zaf_cache_clean
	;;
cache-list)
	zaf_cache_list
	;;
cache-test1)
	for i in test1 test2 test3; do
		echo "To cache:"
		echo "$i" | zaf_tocache_stdin "test" 10
	done
	;;
cache-test2)
	for i in test1 test2 test3; do
		echo "From cache:"
		zaf_fromcache "test"
	done
	;;

version)
	echo "$ZAF_VERSION<git $ZAF_GITBRANCH>"
	[ $ZAF_DEBUG -gt 1 ] && set |grep -E ^ZAF_ 
	;;


###### Agent related commands
userparms)
	for plugin in $(zaf_list_plugins); do
		plugindir=$ZAF_PLUGINS_DIR/$plugin
		control=$plugindir/control.zaf
		zaf_ctrl_generate_items_cfg "${control}" "${plugin}" "noscripts" \
		 | zaf_far '{PLUGINDIR}' "${plugindir}"
	done
	;;
agent-config)
	[ -n "$2" ] && force=yes
	for p in $(zaf_list_plugins); do
		if [ -f "$ZAF_PLUGINS_DIR/$p/postinst.need" ]; then
			zaf_wrn "Calling postinstalation of plugin $p"
			zaf_postinstall_plugin $p && rm -f "$ZAF_PLUGINS_DIR/$p/postinst.need"
			force=yes
		fi
	done
	zaf_wrn "Generating config files in $ZAF_AGENT_CONFIGD ..."
	for plugin in $(zaf_list_plugins); do
		plugindir=$ZAF_PLUGINS_DIR/$plugin
		control=$plugindir/control.zaf
		if ! [ -f "${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf" ] || [ "$control" -nt "${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf" ] || [ -n "$force" ]; then
			zaf_dbg "Generating ${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf"
			zaf_ctrl_generate_items_cfg "${control}" "${plugin}" \
			 | zaf_far '{PLUGINDIR}' "${plugindir}" >${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf
		fi
	done
	;;
server-config)
	zaf_wrn "Not implemented yet"
	;;

###### Plugins related commands
update)
	zaf_wrn "Updating repository ${ZAF_REPO_GITURL}..."
	zaf_update_repo
	;;
upgrade)
	ZAF_DEBUG=$ZAF_DEBUG $0 reinstall $(zaf_list_plugins)
	;;
show)
	shift;
	if [ -z "$1" ]; then
		zaf_list_plugins | while read plugin; do
			zaf_plugin_info $ZAF_PLUGINS_DIR/$plugin/control.zaf
		done
	else
		if echo $1 | grep -vq "\."; then
			if zaf_list_plugins | grep -q "^$1"; then
				zaf_is_plugin $1 && zaf_plugin_info $ZAF_PLUGINS_DIR/$1/control.zaf || zaf_err "Plugin $1 not installed."
			else
				if echo $1 |grep -q ^http; then
					zaf_prepare_plugin "$1" "$ZAF_TMP_DIR/plugin"
					zaf_plugin_info "$ZAF_TMP_DIR/plugin/control.zaf"
				else
					zaf_err "Plugin $1 not installed."
				fi
			fi
		else
			zaf_item_info "$1"
		fi
	fi
	;;
plugins)
	zaf_list_plugins
	;;
items)
	shift
	if [ -z "$1" ]; then
		zaf_list_items
	else
		zaf_list_plugin_items "$1"
	fi
	;;
test)
	[ "$USER" != "zabbix" ] && zaf_wrn "You are not zabbix user. Test will be run with your privileges and sudo access!"
	shift
	if echo $1|grep -q '\.'; then
		zaf_test_item "$1"
		exit
	fi
	if [ -n "$1" ]; then
		plugins="$@"
	else
		plugins="$(zaf_list_plugins)"
	fi
	for p in $plugins; do
		! zaf_is_plugin $p && zaf_err "Unknown plugin $p"
		for i in $(zaf_list_plugin_items $p test); do 
			zaf_test_item $i
			echo
		done
	done
	;;
itemsh)
	shift
	if zaf_is_item "$1"; then
		plugin=$(zaf_get_plugin_name "$1")
		item=$(zaf_get_item_name "$1")
		params=$(zaf_get_item_params "$1")
		params2=$(zaf_paramstosh "[$params]")
		script=$(zaf_ctrl_generate_items_cfg "${ZAF_PLUGINS_DIR}/${plugin}/control.zaf" "${plugin}" "" "sh -i #"| grep "UserParameter=$plugin.$item" | cut -d ',' -f 2-)
		exec sh -c "$script" dummy $params2
	else
		zaf_err "No such plugin/item $1"
	fi
	;;
run)
	shift
	if zaf_is_item "$1"; then
		plugin=$(zaf_get_plugin_name "$1")
		item=$(zaf_get_item_name "$1")
		params=$(zaf_get_item_params "$1")
		params2=$(zaf_paramstosh "[$params]")
		script=$(zaf_ctrl_generate_items_cfg "${ZAF_PLUGINS_DIR}/${plugin}/control.zaf" "${plugin}" | grep "UserParameter=$plugin.$item" | cut -d ',' -f 2-)
		exec sh -c "$script" dummy $params2
	else
		zaf_err "No such plugin/item $1"
	fi
	;;
get)
	shift
	if zaf_is_item "$1"; then
		zaf_get_item "$1"
		exit
	fi
	if [ -n "$1" ]; then
		plugins="$@"
	else
		plugins="$(zaf_list_plugins)"
	fi
	for p in $plugins; do
		for i in $(zaf_list_plugin_items $p test); do 
			echo $i: $(zaf_get_item $i)
			echo
		done
	done
	;;
send)
	shift
	if [ -z "$1" ]; then
		# No parameters - pipe to zabbix_sender
		zaf_dbg "Waiting for data on stdin (host item value) per line"
		zscmd="zabbix_sender -z '$ZAF_ZBXSRV_HOST' -p '$ZAF_ZBXSRV_PORT' -i -"
		zaf_dbg $zscmd
		eval $zscmd
		exit
	else
		if [ -n "$2" ]; then
			# Hostname as parameter - rerun with right hostname set
			exec $0 send "$2" "$3" ZAF_HOSTNAME="$1"
		else
			if echo "$1" | grep -q ':'; then
				# Hostname:item - rerun with right hostname set
				exec $0 send "$(echo $1 |cut -d ':' -f 2-)" "$3" ZAF_HOSTNAME="$(echo $1 |cut -d ':' -f 1)"
			fi
			if zaf_is_item "$1"; then
				# Item supported by zaf
				plugin=$(zaf_get_plugin_name "$1")
				item=$(zaf_get_item_name "$1")
				zscmd="zabbix_sender -z '$ZAF_ZBXSRV_HOST' -p '$ZAF_ZBXSRV_PORT' -s '$(zaf_hostname)' -k '$plugin.$item' -o '$(zaf_run_item $1)'"
				zaf_dbg $zscmd
				eval $zscmd
				exit
			else
				if echo $1 | grep -q '='; then
					item=$(echo $1 | cut -d '=' -f 1)
					value=$(echo $1 | cut -d '=' -f 2-)
				else
					item=$1
					zaf_dbg "Waiting for value of $(zaf_hostname):$1 on stdin"
					value=$(cat)
				fi
				zscmd="zabbix_sender -z '$ZAF_ZBXSRV_HOST' -p '$ZAF_ZBXSRV_PORT' -s '$(zaf_hostname)' -k '$item' -o '$value'"
				zaf_dbg $zscmd
				eval $zscmd
				exit
			fi			
		fi
	fi
	;;
register)
	shift
	if [ -z "$1" ]; then
		hostname=$(zaf_hostname)
	else
		hostname="$1"
		if [ -z "$2" ]; then
			metadata="ZAF"
		else
			metadata="$2"
		fi

	fi
	zaf_register "$hostname" "$metadata"
	exit;
	;;
precache)
	shift
	for i in $*; do
		if zaf_is_plugin $i; then
			for j in $(zaf_list_plugin_items $i precache); do
				item=$(echo $j | cut -d '[' -f 1)
				params=$(echo $j | cut -d '[' -f 2 | cut -d ']' -f 1 | tr ',' ' ')
				zaf_precache_item $params >/dev/null
			done
		else
			item=$(echo $i | cut -d '[' -f 1)
			params=$(echo $i | cut -d '[' -f 2 | cut -d ']' -f 1 | tr ',' ' ')
			zaf_precache_item $params >/dev/null
		fi
	done
	;;
install)
	shift
	[ -z "$1" ] && echo "$0 install plugin [plugin]..."
	for p in $@; do
		if zaf_is_plugin "$(basename $p)"; then
			zaf_wrn "Plugin $(basename $p) already installed. Skipping installation."
			continue
		fi
		zaf_install_plugin "$p"
		installed=1
	done
	[ -n "$installed" ] && zaf_is_root && zaf_restart_agent
	;;
reinstall)
	shift
	[ -z "$1" ] && echo "$0 reinstall plugin [plugin]..."
	for p in $@; do
		if zaf_is_plugin "$p"; then
			params=$(zaf_get_plugin_parameters $p)
			for param in $params; do 
				eval export ZAF_${p}_${param}=$(zaf_get_plugin_parameter "${ZAF_PLUGINS_DIR}/${p}" $param)
				zaf_dbg "Saving ZAF_${p}_${param}"
			done
			zaf_remove_plugin "$p"
			reinstalled=1
		fi
		zaf_install_plugin "$p"
		reinstalled=1
	done
	[ -n "$reinstalled" ] && zaf_is_root && zaf_restart_agent
	;;
remove|uninstall)
	shift
	[ -z "$1" ] && echo "$0 remove plugin [plugin]..."
	for p in $@; do
		if zaf_is_plugin "$p"; then
			zaf_remove_plugin "$p"
			removed=1
		fi
	done
	[ -n "$removed" ] && zaf_is_root && zaf_restart_agent
	;;
plugin-set)
	plugin="$2"
	param="$3"
	value="$4"
	if [ -z "$plugin" ] || [ -z "$param" ]; then
		zaf_err "$0 plugin-set plugin parameter value"
	else
		if zaf_is_plugin "$plugin"; then
			plugindir="${ZAF_PLUGINS_DIR}/${plugin}"
			zaf_set_plugin_parameter "$plugindir" "$param" "$value"
		else
			zaf_err "Plugin $plugin is not installed."
		fi
	fi 
	;;

###### Zaf related commands
self-upgrade)
	shift
	[ -z "$1" ] && auto=auto
	zaf_os_specific zaf_check_deps zaf && zaf_err "Zaf is installed as system package. Cannot self-upgrade."
	if ! zaf_which curl >/dev/null;
	then
		zaf_err "Curl not found. Cannot continue. Please install it."
	fi
	zaf_fetch_url $ZAF_RAW_URL/$ZAF_GITBRANCH/install.sh | exec sh -s $auto "$@"
	exit
	;;
self-remove)
	shift
	zaf_os_specific zaf_check_deps zaf && zaf_err "Zaf is installed as system package. Cannot self-remove."
	. /etc/zaf.conf
	if [ "$1" = "force" ]; then
		rm -rf /etc/zaf.conf ${ZAF_PLUGINS_DIR} ${ZAF_REPO_DIR} ${ZAF_LIB_DIR} \
		 ${ZAF_BIN_DIR}/zaf ${ZAF_AGENT_CONFIGD}/zaf_*
	else
		echo "This will remove zaf from this computer and erase all configuration."
		echo "This command will be executed:"
		echo "rm -rf /etc/zaf.conf ${ZAF_PLUGINS_DIR} ${ZAF_REPO_DIR} ${ZAF_LIB_DIR} \
		${ZAF_BIN_DIR}/zaf ${ZAF_AGENT_CONFIGD}/zaf_*"
		echo 
		echo "To continue, please do $0 self-remove force"
	fi
	;;

###### API related commands
api)
	zaf_zbxapi_login
	case $2 in
	get-*-id)
		obj=$(echo $2|cut -d '-' -f 2)
		[ -z "$3" ] && zaf_err "$0 $1 $2 <$obj>"
		eval zaf_zbxapi_get${obj}id "$3"
		;;
	get-byid-*|get-id-*)
		obj=$(echo $2|cut -d '-' -f 3)
		[ -z "$3" ] && zaf_err "$0 $1 $2 <id>"
		eval zaf_zbxapi_get${obj} "$3" "$4"
		;;
	get-host-ids)
		if [ -n "$3" ]; then
			gid=$(zaf_zbxapi_gethostgroupid "$3") || exit 1
			zaf_dbg "Selecting all hosts in group $3($gid)"
			zaf_zbxapi_gethostsingroup $gid
		else
			zaf_dbg "Selecting all hosts in system"
			zaf_zbxapi_gethostids
		fi
		;;
	get-inventory)
		[ -z "$3" ] && zaf_err "$0 $1 field [host]. If host unspecified, use hostname"
		if [ -z "$4" ]; then
			host=$(hostname)
		else
			host="$4"
		fi
		zaf_zbxapi_gethostinventory $host $3
		;;
	get-template-ids)
		if [ -n "$3" ]; then
			gid=$(zaf_zbxapi_gethostgroupid "$3") || exit 1
			zaf_dbg "Selecting all templates in group $3($gid)"
			zaf_zbxapi_gettemplatesingroup $gid
		else
			zaf_dbg "Selecting all templates in system"
			zaf_zbxapi_gettemplateids
		fi
		;;
	get-map-ids)
		zaf_zbxapi_getmapid
		;;
	export-hosts)
		shift; shift
		[ -z "$1" ] && zaf_err "$0 api export-hosts dir [hostgroup]"
		dir="$1"
		shift
		if [ -n "$1" ]; then
			gid=$(zaf_zbxapi_gethostgroupid "$1") || exit 1
			shift
			hosts=$(zaf_zbxapi_gethostsingroup $gid)
		else
			hosts=$(zaf_zbxapi_gethostids)
		fi
		zaf_wrn "Will backup this hosts: $hosts"
		zaf_wrn "Output dir: $dir"
		for h in $hosts; do
			if zaf_bglimit 5; then
				(
				hn=$(zaf_zbxapi_gethost $h name)
				zaf_wrn "Exporting host $hn($h)..."
				zaf_zbxapi_export_host $h >"$dir/$hn.xml"
				) &
			else
				hn=$(zaf_zbxapi_gethost $h name)
				zaf_wrn "Exporting host $hn($h)..."
				zaf_zbxapi_export_host $h >"$dir/$hn.xml"
			fi
		done
		wait
		;;
	export-host)
		shift; shift
		hostid=$(zaf_zbxapi_gethostid "$1") || exit 1
		zaf_wrn "Exporting host $3($hostid)..."
		zaf_zbxapi_export_host $hostid
		;;
	export-template)
		shift; shift
		templateid=$(zaf_zbxapi_gettemplateid "$1") || exit 1
		zaf_wrn "Exporting template $3($hostid)..."
		zaf_zbxapi_export_template $templateid
		;;
	export-templates)
		shift; shift
		[ -z "$1" ] && zaf_err "$0 api export-templates dir"
		dir="$1"
		templates=$(zaf_zbxapi_gettemplateids)
		zaf_wrn "Will backup this templates: $templates"
		zaf_wrn "Output dir: $dir"
		for t in $templates; do
			if zaf_bglimit 5; then
				(
				tn=$(zaf_zbxapi_gettemplate $t name)
				zaf_wrn "Exporting template $tn($t)..."
				zaf_zbxapi_export_template $t >"$dir/$tn.xml"
				) &
			else
				tn=$(zaf_zbxapi_gettemplate $t name)
				zaf_wrn "Exporting template $tn($t)..."
				zaf_zbxapi_export_template $t >"$dir/$tn.xml"
			fi
		done
		wait
		;;
	import-template)
		shift; shift
		if zaf_is_plugin $1; then
			if [ -f "$ZAF_PLUGINS_DIR/$1/template.xml" ]; then
				template="$ZAF_PLUGINS_DIR/$1/template.xml"
				zaf_wrn "Importing template $template"
				zaf_zbxapi_import_config $template || zaf_err "Error importing template"
			else
				url="$(zaf_plugin_option $1 Template)"
				if [ -n "$url" ]; then
					zaf_fetch_url $url | zaf_zbxapi_import_config || zaf_err "Error importing template"
				else
					url="$(zaf_plugin_option $1 Url)"
					zaf_fetch_url $url/template.xml | zaf_zbxapi_import_config || zaf_err "Error importing template"
				fi
			fi
		else
			if [ -f $1 ]; then
				zaf_wrn "Importing template $1"
				zaf_zbxapi_import_config $1 || zaf_err "Error importing template"
			else
				zaf_err "Unknown plugin $1!"
			fi
		fi
		;;
	*)
		echo "$0 api command [parameters]"
		for i in host template map; do
			zaf_hlp "get-${i}-id $i" "Get $i id"
			zaf_hlp "get-byid-${i} id [property]" "Get $i property from id. Leave empty property for JSON" 
		done
		zaf_hlp "get-inventory host [fields]"	"Get inventory fields [or all fields]"
		zaf_hlp "get-host-ids [hg]" "Get all hostids or hostids in group hg"
		zaf_hlp "get-template-ids [hg]" "Get all templateids or templateids in group hg"
		zaf_hlp "get-map-ids" "Get all mapids"
		zaf_hlp "export-hosts dir [hg]"	"Backup all hosts [in group hg] (get their config from zabbix and save to dir/hostname.xml)" 
		zaf_hlp "export-host host" "Backup host (get config from zabbix to stdout)"
		zaf_hlp "import-template {plugin|file}"	"Import template for plugin or from file"
		zaf_hlp "export-template name"	"Export template to stdout"
		zaf_hlp "export-templates dir"	"Export all template to dir"
		echo
		[ -n "$2" ] && zaf_err "Bad API command '$2'!"
		;;
	esac
	;;

*)
	if zaf_is_plugin "$1"; then
		if [ -z "$2" ]; then
			zaf_list_plugin_commands "$1"
		else
			zaf_plugin_run_command "$@"
		fi
		exit
	fi
	echo "$0 Version ${ZAF_VERSION}. Please use some of this commands:"
	echo "$0 Cmd [ZAF_OPTION=value] [ZAF_CTRL_Option=value] [ZAF_CTRLI_Item_Option=value] ..."
	echo "Plugin manipulation commands:"
	zaf_hlp "$0 update" "To update repo (not plugins, similar to apt-get update)"
	zaf_hlp "$0 upgrade" "To upgrade installed plugins from repo" 
	zaf_hlp "$0 install plugin" "To install plugin"
	zaf_hlp "$0 remove plugin" "To remove plugin" 
	echo
	echo "Plugin info commands:"
	zaf_hlp "$0 plugins" "To list installed plugins"
	zaf_hlp "$0 show [plugin]"	"To show installed plugins or plugin info"
	zaf_hlp "$0 items [plugin]" "To list all suported items [for plugin]"
	echo
	echo "Plugin diagnostic commands:"
	zaf_hlp "$0 test [plugin[.item]]" "To test [all] suported items by zabbix_agentd [for plugin]"
	zaf_hlp "$0 get [plugin[.item]]" "To test [all] suported items by zabbix_get [for plugin]"
	zaf_hlp "$0 run [plugin[.item]]" "To test [all] suported items by directly runing command [for plugin]"
	zaf_hlp "$0 precache [plugin[.item]]" "To precache [all] suported items"
	zaf_hlp "$0 itemsh plugin.item" "To spawn interactive shell in item context (same as UserParameter)."
	echo
	echo "Zabbix API commands:"
	zaf_hlp "$0 api" "To zabbix API functions. See $0 api for more info."
	echo
	echo "Zabbix trapper commands:"
	zaf_hlp "$0 send plugin.item" "To send result of agent param directly to Zabbix server by zabbix_server."
	zaf_hlp "$0 send item" "To send value for any item from stdin."
	zaf_hlp "$0 send host:item" "To send value for any host:item from stdin."
	echo "Zabbix agent registration:"
	zaf_hlp "$0 register [hostname] [metadata]" "To register hostname on Zabbix server (autoregistration)."
	echo
	echo "Agent config info commands:"
	zaf_hlp "$0 userparms" "See userparms generated from zaf on stdout"
	zaf_hlp "$0 agent-config [force]" "Reconfigure zabbix userparms in $ZAF_AGENT_CONFIGD"
	echo
	echo "Zaf related commands:"
	zaf_hlp "$0 self-upgrade" "To self-upgrade zaf"
	zaf_hlp "$0 self-remove" "To self-remove zaf and its config"
	zaf_hlp "$0 cache-clean" "To remove all entries from cache"
	zaf_hlp "$0 cache-list" "To show all entries in cache"
	echo
	[ -n "$1" ] && zaf_err "Bad command '$1'!"
	;;

esac