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

cd "$(dirname "$0")"

linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
cxx=${CXX:-g++}
build_dir=${TMPDIR:-/tmp}/cnc_sim_rs274_objects
python_includes=$(python3.13-config --includes 2>/dev/null || python3-config --includes)

rm -rf "$build_dir"
mkdir -p "$build_dir"

common_flags=(
    -std=c++17
    -DULAPI
    -I "$linuxcnc_root/src"
    -I "$linuxcnc_root/src/emc"
    -I "$linuxcnc_root/src/emc/nml_intf"
    -I "$linuxcnc_root/src/emc/rs274ngc"
    -I "$linuxcnc_root/src/emc/motion"
    -I "$linuxcnc_root/src/emc/pythonplugin"
    -I "$linuxcnc_root/include"
)

sources=()
while IFS=: read -r group path note; do
    case "$group" in
        core)
            sources+=("$path")
            ;;
        ""|\#*|binding|tooldata)
            ;;
        *)
            echo "unknown manifest group: $group" >&2
            exit 1
            ;;
    esac
done < linuxcnc-rs274-source-files.txt

for source in "${sources[@]}"; do
    obj="$build_dir/$(basename "$source" .cc).o"
    # shellcheck disable=SC2086
    "$cxx" "${common_flags[@]}" $python_includes -c "$linuxcnc_root/$source" -o "$obj"
done

echo "linuxcnc rs274 source object build passed (${#sources[@]} objects)"
echo "built objects in $build_dir"