#!/bin/bash

LC_ALL=en_US.UTF-8 # make sure numbers are properly formatted

statfile="statistics.txt"

>$statfile

formath="%-30s %10s %10s %10s %10s\n"
formatr="%-30s %10.2f %10d %10d %10d\n"

# Header row. Using gawk for correct UTF-8 spacing
gawk "BEGIN {printf \"$formath\", \"Πρόβλημα\", \"Επιτυχία\", \"Υποβολές\", \"Σωστές\", \"Λάθος\"}" >> $statfile

#for x in scores-e* scores-[^e]*
for x in scores-*
do
    chmod ugo+r $x
    allquestions=`cat $x|wc -l`
    correct=`cat $x|grep OK|wc -l`
    percentage=`awk "BEGIN {printf \"%6.2f\", ${correct}/${allquestions}*100.}"`
    error=`cat $x|grep ERROR|wc -l`
    probname=`echo $x|sed 's/scores-//'`
    printf "$formatr" \
        "$probname" "$percentage" "$allquestions" "$correct" "$error" >> $statfile
done

echo >> $statfile
export LC_ALL=el_GR.UTF-8 # for date formatting
echo -n "Τελευταία ενημέρωση " >> $statfile
date >> $statfile

chmod ugo+r $statfile