#!/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

tar -xzf "$TESTDATA/flatdata.tar.gz" || { echo "ERROR: Could not extract data test files" ; exit 1; } >&2

banner="create 5% recovery files"
dashes=`echo "$banner" | sed s/./-/g`

echo $dashes
echo $banner
echo $dashes

$PARBINARY c testdata.par2 *.data || { echo "ERROR: creating repair files using PAR 2.0 failed" ; exit 1; } >&2

banner="repair files where 1 byte got removed at the beginning of a file"
dashes=`echo "$banner" | sed s/./-/g`

echo $dashes
echo $banner
echo $dashes

mv test-1.data test-1.data-correct
tail -c 177173 test-1.data-correct > test-1.data

$PARBINARY r testdata.par2 || { echo "ERROR: repair files using PAR 2.0 failed" ; exit 1; } >&2

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

exit 0
