#!/bin/sh
#
# sanity_check -- general sanity checker for the source and translations
#

# This had better take us to the top-level source directory.
# Otherwise, confusion will ensue.

#Detect location of this script use it to cd to top-level
FULL_PATH=`dirname $(readlink -f $0)`
cd $FULL_PATH/..
if [ ! -d data -o ! -d images ]
then
	echo "sanity_check: " \
		"this tool must be run from the Wesnoth utils directory."
	exit 1
fi
problems=no

# First sanity check:

echo "Checking POTFILES correctness..."

potfiles="po/wesnoth/POTFILES.in po/wesnoth-lib/POTFILES.in po/wesnoth-editor/POTFILES.in"

# Gather the list of sources
find src -name '*.cpp' -print | sort >/tmp/sschk$$_sources
# See what's in the POTFILES
sort -u $potfiles >/tmp/sschk$$_potmembers
# Figure out which sources are not listed but should be
missing=`comm -23 /tmp/sschk$$_sources /tmp/sschk$$_potmembers | tr '\012' ' '`
if [ "$missing" ]
then
	echo "  Missing from the POTFILE.in files: $missing"
	problems=missing
else
	echo "  All .cpp files have POTFILE.in entries."
fi

# Find invalid potfile entries
for file in $potfiles
do
	sort -u $file >/tmp/sschk$$_uniq
	invalid=`comm -23 /tmp/sschk$$_uniq /tmp/sschk$$_sources | tr '\012' ' '`
	if [ "$invalid" ]
	then
		echo "  Invalid $file entries: $invalid"
		problems=invalid
	else
		echo "  All $file entries are valid."
	fi
done

# Check for duplicates within the individual POT files
for file in $potfiles
do
	sort $file >/tmp/sschk$$_sorted
	sort -u $file >/tmp/sschk$$_uniq
	duplicates=`comm -23 /tmp/sschk$$_sorted /tmp/sschk$$_uniq | tr '\012' ' '`
	if [ $duplicates ]
	then
		echo "  Duplicates within $file: $duplicates"
		problems=within
	fi
done

# Check for duplication across POT files
for afile in $potfiles
do
	for bfile in $potfiles
	do
		# The newer-than test is a klugy way to select
		# only one of each two file pairs that are the
		# same symmetrical set.  This will give duplicate
		# messages if the files were created in the same second.
		if [ $afile != $bfile -a $afile -nt $bfile ]
		then
			sort -u $afile >/tmp/sschk$$_afile
			sort -u $bfile >/tmp/sschk$$_bfile
			duplicates=`comm -12 /tmp/sschk$$_afile /tmp/sschk$$_bfile | tr '\012' ' '`
			if [ $duplicates ]
			then
				echo "  Duplicated between $afile and $bfile: $duplicates"
				problems=across
			fi
		fi
	done
done

if  [ $problems != within -a $problems != across ]
then
	echo "  No duplicates."
fi

# More sanity checks can go here...

# Cleanup
if [ $problems = 'no' ]
then
	echo "All sanity checks passed."
fi

rm /tmp/sschk$$_*