#!/bin/sh

#
# This script is designed to quickly create lots of files in underlying
# test-* directories, do lots of other magic stuff and exit cleanly.
#

set -e

if [ "x$1" = "x" ]; then
	echo "Usage: $0 <check-NN.c>"
	exit
fi

srcdir="${srcdir:-.}"
abs_top_srcdir="${abs_top_srcdir:-$(pwd)/../../}"
abs_top_builddir="${abs_top_builddir:-$(pwd)/../../}"

if echo "$*" | grep -q -- -- ; then
    TEST_DRIVER=$(echo "$*"  | sed -e 's/ -- .*/--/g')
    source_full=$(echo "$*"  | sed -e 's/.* //g')
else
    TEST_DRIVER=""
    source_full="$1"
fi

# Compute the .asn1 spec name by the given file name.
source_short=$(echo "$source_full" | sed -e 's/.*\///')
testno=$(echo "$source_short" | cut -f2 -d'-' | cut -f1 -d'.')

args=$(echo "$source_short" | sed -e 's/\.c[c]*$//')

OFS=$IFS
IFS="."
set $args
shift
IFS=$OFS
AFLAGS="$*"

# Assume the test fails. Will be removed when it passes well.
testdir=test-${args}
if [ -f "${testdir}-FAILED" ]; then
    rm -rf "${testdir}"
fi
touch "${testdir}-FAILED"

mkdir -p "${testdir}"
ln -fns "../${source_full}" "${testdir}"

asn_module=$(echo "${abs_top_srcdir}/tests/${testno}"-*.asn1)

# Create a Makefile for the project.
cat > "$testdir/Makefile" <<EOM
# This file is autogenerated by ../$0

COMMON_FLAGS= -I.
CFLAGS = \${COMMON_FLAGS} ${CFLAGS:-} -g -O0
CPPFLAGS = -DSRCDIR=../${srcdir}
CXXFLAGS = \${COMMON_FLAGS} ${CXXFLAGS}

CC ?= ${CC}

all: check-executable
check-executable: compiled-module *.c*
	@rm -f *.core
	\$(CC) \$(CPPFLAGS) \$(CFLAGS) -o check-executable *.c* -lm

# Compile the corresponding .asn1 spec.
compiled-module: ${asn_module} ${abs_top_builddir}/asn1c/asn1c
	${abs_top_builddir}/asn1c/asn1c		\\
		-S ${abs_top_srcdir}/skeletons	\\
		-Wdebug-compiler		\\
		${AFLAGS} ${asn_module}
	rm -f converter-sample.c
	@touch compiled-module

check-succeeded: check-executable
	@rm -f check-succeeded
	./check-executable
	@touch check-succeeded

check: check-succeeded

clean:
	@rm -f *.o check-executable
EOM

# Perform building and checking
${TEST_DRIVER} make -C "$testdir" check

# Make sure the test is not marked as failed any longer.
rm -f "${testdir}-FAILED"