#!/bin/sh

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
    echo $pair | grep -q '^ZAF\_' || continue
    option=$(echo $pair|cut -d '=' -f 1)
    value=$(echo $pair|cut -d '=' -f 2-)
    eval "${option}='$value'"
done

[ -z "$ZAF_TMP_BASE" ] && ZAF_TMP_BASE=/tmp/zaf
ZAF_TMP_DIR="${ZAF_TMP_BASE}-${USER}"
[ -z "$ZAF_DEBUG" ] && ZAF_DEBUG=1
export ZAF_DEBUG

# If debug is on, do not remove tmp dir 
if [ "$ZAF_DEBUG" -le 3 ]; then
	trap "rm -rif ${ZAF_TMP_DIR}" EXIT
fi

! [ -d "${ZAF_TMP_DIR}" ] && mkdir "${ZAF_TMP_DIR}"

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

zaf_shift(){
	local s

	if echo $1 |grep -q "="; then
		if echo $2 |grep -q "="; then
			if echo $3 |grep -q "="; then
				s=3
			else
				s=2
			fi
		else
			s=1
		fi
	else
		s=0
	fi
	echo $s
}

case $1 in

check-agent-config)
	zaf_check_agent_config
	;;

update)
	zaf_wrn "Updating repository ${ZAF_REPO_GITURL}..."
	zaf_update_repo
	;;

show)
	shift;
	shift $(zaf_shift "$@")
	if [ -z "$1" ]; then
		zaf_list_plugins | while read plugin; do
			zaf_plugin_info $ZAF_PLUGINS_DIR/$plugin/control.zaf
		done
	else
		if zaf_list_plugins | grep -q "^$1"; then
			[ -f $ZAF_PLUGINS_DIR/$1/control.zaf ] && 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
	fi
	;;

plugins)
	zaf_list_plugins
	;;

items)
	shift
	shift $(zaf_shift "$@")
	if [ -z "$1" ]; then
		zaf_list_items
	else
		zaf_list_plugin_items "$1"
	fi
	;;

test)
	shift
	shift $(zaf_shift "$@")
	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); do 
			echo $i: $(zaf_test_item $i)
		done
	done
	;;
get)
	shift
	shift $(zaf_shift "$@")
	if echo $1|grep -q '\.'; 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); do 
			echo $i: $(zaf_get_item $i)
		done
	done
	;;
install)
	shift
	shift $(zaf_shift "$@")
	[ -z "$1" ] && echo "$0 install plugin [plugin]..."
	for p in $@; do
		if zaf_is_plugin "$p"; then
			zaf_wrn "Plugin $p already installed. Skipping installation."
			continue
		fi
		zaf_install_plugin "$p"
		installed=1
	done
	[ -n "$installed" ] && zaf_is_root && zaf_restart_agent
	;;

reinstall)
	shift
	shift $(zaf_shift "$@")
	[ -z "$1" ] && echo "$0 reinstall plugin [plugin]..."
	for p in $@; do
		if zaf_is_plugin "$p"; then
			zaf_remove_plugin "$(basename $p)"
			reinstalled=1
		fi
		zaf_install_plugin "$p"
		reinstalled=1
	done
	[ -n "$reinstalled" ] && zaf_is_root && zaf_restart_agent
	;;

remove)
	shift
	shift $(zaf_shift "$@")
	[ -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
	;;

self-upgrade)
	shift
	shift $(zaf_shift "$@")
	[ -z "$1" ] && auto=auto
	zaf_os_specific zaf_check_deps zaf && zaf_err "Zaf is installed as system package. Cannot self-upgrade."
	rm -rf /tmp/zaf-installer && mkdir /tmp/zaf-installer
	if ! which curl >/dev/null;
	then
		zaf_err "Curl not found. Cannot continue. Please install it."
	fi
	zaf_fetch_url $ZAF_RAW_URL/$ZAF_VERSION/install.sh | exec sh -s $auto "$@"
	exit
	;;
	
self-remove)
	shift
	shift $(zaf_shift "$@")
	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
      ;;

*)
	echo "$0 Version ${ZAF_VERSION}. Please use some of this commands:"
	echo "$0 Cmd [ZAF_OPTION=value] ..."
	echo "Commands:"
	echo "$0 update			To update repo" 
	echo "$0 plugins		To list installed plugins"
	echo "$0 show [plugin]		To show installed plugins or plugin info"
	echo "$0 items [plugin]		To list all suported items [for plugin]"
	echo "$0 test [plugin[.item]]	To test [all] suported items by zabbix_agentd [for plugin]"
	echo "$0 get [plugin[.item]]	To test [all] suported items by zabbix_get [for plugin]"
	echo "$0 install plugin		To install plugin"
	echo "$0 remove plugin		To remove plugin" 
	echo "$0 self-upgrade		To self-upgrade zaf"
	echo "$0 self-remove		To self-remove zaf and its config"
	echo
	;;

esac