#!/bin/bash

# a script to grab translation statistics from po files and send them to Zabbix

# po files are expected to be found in
#  $polocation/<language>/LC_MESSAGES/<domain>.po
# project must be passed as the first positional parameter and is appended to
#  polocation
# domain can be passed as the second positional parameter. default domain is
#  "frontend"

# item key syntax: gettext.strings[language,type,domain]
# item key example: gettext.strings[uk,translated,frontend]

# expects "msgfmt --statistics" output to be in the format:
# 439 translated messages, 75 fuzzy translations, 376 untranslated messages
# if any type is missing, 0 is sent for that type instead

# lots of possibilities to extend, including dynamic project

polocation=/srv/www/htdocs/pootle/po
project=$1
domain=${2:-frontend}
zsender=/usr/local/bin/zabbix_sender
zserver=127.0.0.1
zhost="Zabbix.org"
zkey=gettext.strings

[[ -x $zsender ]] || {
	echo "zabbix_sender not found at $zsender"
	exit 1
}

# unfortunately, msgfmt outputs statistics to stderr, so we can't capture errors
#  separately

svn up "$polocation/$project"

for langdir in $(find "$polocation/$project" -maxdepth 1 -mindepth 1 -type d\
 ! -wholename '*/.svn*'); do
	statline=$(msgfmt --statistics -o /dev/null\
 $langdir/LC_MESSAGES/$domain.po 2>&1)
	for type in translated fuzzy untranslated; do
		# a bit of an ugly hack with prepending a space to get different
		#  types correctly
		amount=$(echo " $statline" | sed -n "s/.* \([0-9]\+\)\
 ${type}.*/\1/p")
		key="$zkey[$(basename $langdir),$type,$domain]"

# normal version
		sender_output=$($zsender -z $zserver -s "$zhost" -k $key -o ${amount:-0} -vv 2>&1)

# historic version - we expect to have timestamp passed as the third parameter
# ! disable svn up above
#sender_output=$(echo "\"$zhost\" $key $3 ${amount:-0}" | $zsender -z $zserver -i - -T -vv 2>&1)

#		echo "$sender_output"
		[[ "$sender_output" =~ "Sending failed"|"Failed "[1-9] ]] && {
			# if sending fails for any reason (including missing
			#  items), we try to transmit the error to the Zabbix
			#  server
			$zsender -z $zserver -s "$zhost" -k gettext.errors\
 -o "$(echo -e "Language directory: $langdir\nmsgfmt output:\
 $statline\nType: $type\nExtracted amount: ${amount:-0}\nKey: $key\nZabbix sender output:\n")$sender_output" -vv >> /tmp/zabbix.gettext.errors 2>&1
		# newline before sender output doesn't seem to be properly transmitted
		}
	done
#	exit
done