if [ ! -d "build" ]; then
  mkdir build
fi

OS=Linux
COMPILE=gcc
COMPILEPP=g++
OBJ_POSTFIX=.o
EXE_POSTFIX=
FLAGS=
FLAG_OBJ="-c -o "
FLAG_EXE="-o "
LINK_FLAGS=

if    [ "$2" = "gcc" ]; then
  COMPILE=gcc
  COMPILEPP=g++
elif  [ "$2" = "clang" ]; then
  COMPILE=clang
  COMPILEPP=clang++
elif  [ "$2" = "msvc" ]; then
  COMPILE=cl.exe
  COMPILEPP=cl.exe
  OBJ_POSTFIX=.obj
  FLAG_OBJ="-c -Fo"
  FLAG_EXE="-Fe"
elif  [ "$2" != "" ]; then
  echo "Unknown C compiler"
  exit 1
fi

if [ "$2" != "" ]; then
  if command -v $COMPILE >/dev/null 2>&1; then
    echo "C compiler found"
  else
    echo "C compiler not found"
    exit 1
  fi
fi

case $(uname | tr '[:upper:]' '[:lower:]') in
  *darwin*)
    OS=macOS
    if [ "$2" = "" ]; then
      if    command -v clang >/dev/null 2>&1; then
        echo "C compiler found - Clang"
        COMPILE=clang
        COMPILEPP=clang++
      elif  command -v gcc >/dev/null 2>&1; then
        echo "C compiler found - GCC"
      else
        echo "C compiler not found"
        exit 1
      fi
    fi
    ;;
  *msys*|*cygwin*|*mingw*|*nt*|*win*)
    OS=Windows
    EXE_POSTFIX=.exe
    if [ "$2" = "" ]; then
      if    command -v cl.exe >/dev/null 2>&1; then
        echo "C compiler found - MSVC"
        COMPILE=cl.exe
        COMPILEPP=cl.exe
        OBJ_POSTFIX=.obj
        FLAG_OBJ="-c -Fo"
        FLAG_EXE="-Fe"
      elif  command -v gcc >/dev/null 2>&1; then
        echo "C compiler found - GCC"
      elif  command -v clang >/dev/null 2>&1; then
        echo "C compiler found - Clang"
        COMPILE=clang
        COMPILEPP=clang++
      else
        echo "C compiler not found"
        exit 1
      fi
    fi
    if [ "$COMPILE" = "cl.exe" ]; then
      LINK_FLAGS="shlwapi.lib"
    else
      LINK_FLAGS="-lshlwapi.lib"
    fi
    ;;
  *)
    if [ "$2" = "" ]; then
      if    command -v gcc >/dev/null 2>&1; then
        echo "C compiler found - GCC"
      elif  command -v clang >/dev/null 2>&1; then
        echo "C compiler found - Clang"
        COMPILE=clang
        COMPILEPP=clang++
      else
        echo "C compiler not found"
        exit 1
      fi
    fi
    ;;
esac

if [ "$COMPILE" = "gcc" ] || [ "$COMPILE" = "clang" ]; then
  if    [ "$1" = "release" ]; then
    FLAGS="-O3"
  elif  [ "$COMPILE" = "gcc" ] && [ "$OS" != "Windows" ]; then
    FLAGS="-O0 -fsanitize=undefined,address,leak"
  elif  [ "$OS" != "Windows" ]; then
    FLAGS="-O0 -fsanitize=undefined,address"
  else
    FLAGS="-O0"
  fi
else
  if [ "$1" = "release" ]; then
    FLAGS="-O2"
  else
    FLAGS="-Od"
  fi
fi

echo ""

$COMPILE ${FLAGS} \
  ${FLAG_OBJ}"build/kit${OBJ_POSTFIX}" \
  "source/kit/_static.c"
if [ $? -ne 0 ]; then
  exit 1
fi

$COMPILE ${FLAGS} \
  ${FLAG_OBJ}"build/kit_test${OBJ_POSTFIX}" \
  "source/kit_test/_static.c"
if [ $? -ne 0 ]; then
  exit 1
fi

$COMPILE ${FLAGS} \
  ${FLAG_EXE}"build/kit_test_suite${EXE_POSTFIX}" \
  "build/kit${OBJ_POSTFIX}" \
  "build/kit_test${OBJ_POSTFIX}" \
  "source/tests/_static.c" \
  ${LINK_FLAGS}
if [ $? -ne 0 ]; then
  exit 1
fi

$COMPILE ${FLAGS} \
  ${FLAG_EXE}"build/test_too_many_assertions${EXE_POSTFIX}" \
  "build/kit${OBJ_POSTFIX}" \
  "build/kit_test${OBJ_POSTFIX}" \
  "source/tests/test_too_many_assertions.c" \
  ${LINK_FLAGS}
if [ $? -ne 0 ]; then
  exit 1
fi

$COMPILE ${FLAGS} \
  ${FLAG_EXE}"build/test_too_many_tests${EXE_POSTFIX}" \
  "build/kit${OBJ_POSTFIX}" \
  "build/kit_test${OBJ_POSTFIX}" \
  "source/tests/test_too_many_tests.c" \
  ${LINK_FLAGS}
if [ $? -ne 0 ]; then
  exit 1
fi

$COMPILEPP ${FLAGS} \
  ${FLAG_EXE}"build/test_cpp${EXE_POSTFIX}" \
  "build/kit${OBJ_POSTFIX}" \
  "build/kit_test${OBJ_POSTFIX}" \
  "source/tests/test_cpp.cpp" \
  ${LINK_FLAGS}
if [ $? -ne 0 ]; then
  exit 1
fi

$COMPILEPP ${FLAGS} \
  ${FLAG_EXE}"build/test_signals${EXE_POSTFIX}" \
  "build/kit${OBJ_POSTFIX}" \
  "build/kit_test${OBJ_POSTFIX}" \
  "source/tests/test_signals.cpp" \
  ${LINK_FLAGS}
if [ $? -ne 0 ]; then
  exit 1
fi

echo "Run tests"
echo ""

STATUS=0

./build/kit_test_suite
if [ $? -ne 0 ]; then
  STATUS=1
fi

./build/test_too_many_assertions --quiet
if [ $? -eq 0 ]; then
  echo "too many assertions - OK"
else
  echo "too many assertions - FAILED (code $?)"
  STATUS=1
fi

./build/test_too_many_tests --quiet
if [ $? -eq 0 ]; then
  echo "too many tests      - OK"
else
  echo "too many tests      - FAILED (code $?)"
  STATUS=1
fi

./build/test_cpp --quiet
if [ $? -eq 0 ]; then
  echo "cpp                 - OK"
else
  echo "cpp                 - FAILED (code $?)"
  STATUS=1
fi

./build/test_signals --quiet
if [ $? -eq 0 ]; then
  echo "signals             - OK"
else
  echo "signals             - FAILED (code $?)"
  STATUS=1
fi

exit $STATUS