#!/usr/bin/env bash
set -euo pipefail

# build_log4qt.sh - build and install Log4Qt into /usr/local
# Designed to be run inside the Docker build or by a runner that has Qt installed at $QT_ROOT

QT_ROOT=${QT_ROOT:-/opt/Qt/6.8.3/gcc_64}
INSTALL_PREFIX=${INSTALL_PREFIX:-/usr/local}

echo "Building Log4Qt (QT_ROOT=${QT_ROOT})..."

TMPDIR=$(mktemp -d)
trap 'rm -rf "$TMPDIR"' EXIT

cd "$TMPDIR"
if ! git clone --depth 1 https://github.com/MEONMedical/Log4Qt.git ./log4qt; then
  echo "Warning: failed to clone Log4Qt from github. Exiting build." >&2
  exit 0
fi

mkdir -p log4qt/build
cd log4qt/build
cmake -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_CXX_STANDARD=20 \
      -DCMAKE_CXX_EXTENSIONS=OFF \
      -DCMAKE_PREFIX_PATH="${QT_ROOT}" \
      -DCMAKE_INSTALL_PREFIX="${INSTALL_PREFIX}" ..

cmake --build . -- -j$(nproc) || true
cmake --install . || true

# Create minimal CMake config so find_package(Log4Qt) will work
mkdir -p "${INSTALL_PREFIX}/lib/cmake/Log4Qt"
libpath=$((ls "${INSTALL_PREFIX}/lib/libLog4Qt.so"* 2>/dev/null || ls "${INSTALL_PREFIX}/lib/liblog4qt.so"* 2>/dev/null) | head -n1 || true)
if [ -n "$libpath" ]; then
  cat > "${INSTALL_PREFIX}/lib/cmake/Log4Qt/Log4QtConfig.cmake" <<EOF
# Minimal Log4QtConfig.cmake created by build_log4qt.sh
if (NOT TARGET Log4Qt::log4qt)
  add_library(Log4Qt::log4qt UNKNOWN IMPORTED)
  set_target_properties(Log4Qt::log4qt PROPERTIES
    IMPORTED_LOCATION "${libpath}"
    INTERFACE_INCLUDE_DIRECTORIES "${INSTALL_PREFIX}/include"
  )
endif()
set(Log4Qt_FOUND TRUE CACHE INTERNAL "Log4Qt found by package config")
set(Log4Qt_INCLUDE_DIRS "${INSTALL_PREFIX}/include" CACHE INTERNAL "Log4Qt include dir")
set(Log4Qt_LIBRARIES "${libpath}" CACHE INTERNAL "Log4Qt library")
EOF
fi

echo "Log4Qt build script finished."

exit 0