#!/bin/sh

execdir="$PWD"

# valgrind tests memory usage.
# wine allow for windows testing on linux
if [ -n "${PARVALGRINDOPTS+set}" ]
then
    PARBINARY="valgrind $PARVALGRINDOPTS $execdir/par2"
elif [ "`which wine`" != "" ] && [ -f "$execdir/par2.exe" ]
then
    PARBINARY="wine $execdir/par2.exe"
else
    PARBINARY="$execdir/par2"
fi


if [ -z "$srcdir" ] || [ "." = "$srcdir" ]; then
  srcdir="$PWD"
  TESTDATA="$srcdir/tests"
else
  srcdir="$PWD/$srcdir"
  TESTDATA="$srcdir/tests"
fi

TESTROOT="$PWD"

testname=$(basename $0)
rm -f "$testname.log"
rm -rf "run$testname"

mkdir "run$testname" && cd "run$testname" || { echo "ERROR: Could not change to test directory" ; exit 1; } >&2

banner="generate datafile with 2000 random bytes"
dashes=`echo "$banner" | sed s/./-/g`

echo $dashes
echo $banner
echo $dashes

dd bs=1000 count=2 if=/dev/urandom of=myfile.dat

banner="Creating PAR 2.0 recovery data"
dashes=`echo "$banner" | sed s/./-/g`

echo $dashes
echo $banner
echo $dashes

$PARBINARY c -s1000 -c0 recovery myfile.dat || { echo "ERROR: Creating PAR 2.0 data failed" ; exit 1; } >&2

banner="split files"
dashes=`echo "$banner" | sed s/./-/g`

echo $dashes
echo $banner
echo $dashes

dd bs=1000 count=1 if=myfile.dat of=myfile.dat.001
dd bs=1000 count=1 skip=1 if=myfile.dat of=myfile.dat.002

rm myfile.dat

banner="Repairing using PAR 2.0 data"
dashes=`echo "$banner" | sed s/./-/g`

echo $dashes
echo $banner
echo $dashes

$PARBINARY r recovery.par2 ./* || { echo "ERROR: PAR 2.0 repair failed" ; exit 1; } >&2

cd "$TESTROOT"
rm -rf "run$testname"

exit 0
