#!/bin/bash

# This script makes a report of any language files that have been modified via the online GTI, 
# and sends off an email containing this report if any have been modified.
# Although it works in local GS2 installations as well, this file needs to live in the top-level 
# of the GTI greenstone installation on nzdl. It's called by the cronjobs running on nzdl.

GREENSTONE_EMAIL=greenstone_team@cs.waikato.ac.nz

# get rid of any old reports
report=translation_status_report.txt
if test -f $report; then 
    rm -f $report
fi

filelisting=("macros/*.dm" "perllib/strings*.properties" "gli/classes/dictionary*.properties" "gli/help/" "gsinstaller/LanguagePack*.properties" "greenstone3/*.properties" "gs3-collection-configs/*.properties" "greenstoneorg/website/classes/Gsc*.properties")

date=`date +"%d-%m-%y"`
echo "Translation status report for date: $date" >> $report
echo "Checked in ${filelisting[@]}" >> $report
echo "---------------------------------------------" >> $report

# store backup of Internal Field Separator value, then set IFS to newline for splitting on newline
IFS_BAK=$IFS
#    IFS='\n' # splits on all whitespace
IFS='
'

num_modified=0
num_added=0

# in the lines returned from the diff, test for archives or newline
# http://stackoverflow.com/questions/229551/string-contains-in-bash
# http://stackoverflow.com/questions/10515964/counter-increment-in-bash-loop-not-working
for file in ${filelisting[@]}; do
    if [[ "$file" != *"zz"* && "$file" != *"test"* ]]; then
	status=`svn status $file`
	# "LINE: $file - status: $status"
	# if the file's svn status is modified, write the filename out to the report
	if [[ "$status" == *"M "* ]]; then
	    #echo "$file has been modified: $status"
	    echo $status >> $report #echo $file >> $report
	    ((num_modified++))
	fi
    fi
done


if [[ $num_modified == 0 ]]; then
    echo "No files modified" >> $report
else
    echo "" >> $report
    echo "The above $num_modified files were modified." >> $report
fi

echo "---------------------------------------------" >> $report

# repeat, this time looking for any newly added files
for file in ${filelisting[@]}; do
    if [[ "$file" != *"zz"* && "$file" != *"test"* ]]; then
	status=`svn status $file`
	if [[ "$status" == *"? "* ]]; then
	    #echo "$file has been added: $status"
	    echo $status >> $report
	    ((num_added++))
	fi
    fi
done

if [[ $num_added == 0 ]]; then
    echo "No files added" >> $report
else
    echo "" >> $report
    echo "The above $num_added files were added." >> $report
fi

echo "---------------------------------------------" >> $report

# restore IFS
IFS=$IFS_BAK
IFS_BAK=



# if no files are modified, we don't send email, otherwise we do
if [[ $num_modified != 0 || $num_added != 0 ]]; then
#  echo "Files were modified or added. Sending email..."  
    cat $report | mail -s 'GTI: '$num_modified/$num_added' language file(s) on gti (nzdl) have been updated/added' $GREENSTONE_EMAIL
    echo "Sent mail of report: $report"
else
    echo "No files modified. Not sending mail."
fi