#!/bin/sh
set -e

BUILDDIR="$(readlink -f "$(dirname "$0")")/../../build"
if [ -z "$AUTOPKGTEST_TMP" ]; then
   if [ -f "${BUILDDIR}/apt-pkg/apt-pkg.pc" ]; then
      if [ -n "$PKG_CONFIG_PATH" ]; then
	 PKG_CONFIG_PATH="${BUILDDIR}/apt-pkg:${PKG_CONFIG_PATH}"
      else
	 PKG_CONFIG_PATH="${BUILDDIR}/apt-pkg"
      fi
      export PKG_CONFIG_PATH
      echo 'Using PKG_CONFIG_PATH:' "$PKG_CONFIG_PATH"
   fi
fi

INCDIR="$(pkg-config --variable=includedir apt-pkg)"
if [ -z "$AUTOPKGTEST_TMP" ]; then
   if [ -d "${BUILDDIR}/include/apt-pkg" ]; then
      INCDIR="${BUILDDIR}/include"
      CPPFLAGS="${CPPFLAGS} -I${INCDIR}"
   fi
fi
echo 'Using include dir:' "$INCDIR"

if [ -z "$AUTOPKGTEST_TMP" ]; then
   WORKDIR=''
   cleanup() {
      if [ -n "$WORKDIR" ]; then cd /; rm -rf -- "$WORKDIR"; fi
      WORKDIR=''
   }
   trap 'cleanup' 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
   WORKDIR="$(mktemp -d)"
   cd "$WORKDIR"
else
   cd "$AUTOPKGTEST_TMP"
fi

find "${INCDIR}/apt-pkg" -name '*.h' -type f \
   ! -name 'debsrcrecords.h' \
   ! -name 'header-is-private.h' ! -name 'cachefilter-patterns.h' ! -name 'tagfile-keys.h' \
   -printf '#include <apt-pkg/%f>\n' > pkgconfigtest.cc
cat >>pkgconfigtest.cc <<EOF
#include <cstdio>

int main()
{
    printf("APT Version: %s\n", pkgVersion);
    return 0;
}
EOF

FAILURE_COUNT=0
runwithstatus() {
   echo -n "${1}: "
   local OKAY="$2"
   local FAIL="$3"
   shift 3
   if "$@"; then
      if [ -n "$OKAY" ]; then echo "$OKAY"; fi
   else
      FAILURE_COUNT=$(($FAILURE_COUNT + 1))
      if [ -n "$FAIL" ]; then echo "$FAIL"; fi
   fi
}

runcompilerwithstandard() {
   local COMPILER="$1"
   shift
   if ! command -v "$COMPILER" >/dev/null; then
      echo "SKIP testing with compiler $COMPILER as it is not available!"
      return
   fi
   for CPPSTD in "$@"; do
      runwithstatus "build $COMPILER ${CPPSTD:-default}" 'OK' '' "$COMPILER" -Wall -Wextra ${CPPFLAGS} ${CPPSTD} -o pkgconfigtest pkgconfigtest.cc `pkg-config --cflags --libs apt-pkg`
      if [ -x pkgconfigtest ]; then
	 runwithstatus "run $COMPILER ${CPPSTD:-default}" '' 'FAILED' ./pkgconfigtest
	 rm pkgconfigtest
      fi
   done
}
runcompilerwithstandard 'g++' '-std=c++23' '-std=c++20' '-std=c++17' ''

exit $FAILURE_COUNT