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

cd "$(dirname "$0")"

linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
manifest=${1:-linuxcnc-rs274-wasm-source-files.txt}

if [[ ! -f "$manifest" ]]; then
    echo "missing manifest: $manifest" >&2
    exit 1
fi

if [[ ! -d "$linuxcnc_root" ]]; then
    echo "missing LinuxCNC root: $linuxcnc_root" >&2
    exit 1
fi

python_blockers=()
dlopen_blockers=()
tooldata_blockers=()
shimmed_tooldata_users=()
native_backend_blockers=()
native_fs_blockers=()

while IFS=: read -r group path note; do
    [[ -z "$group" || "$group" == \#* ]] && continue
    case "$group" in
        core)
            continue
            ;;
        blocked)
            ;;
        *)
            echo "unknown manifest group: $group" >&2
            exit 1
            ;;
    esac

    full_path="$linuxcnc_root/$path"
    if [[ ! -f "$full_path" ]]; then
        echo "missing manifest source: $path" >&2
        exit 1
    fi

    if [[ "$path" == src/emc/tooldata/* ]]; then
        tooldata_blockers+=("$path")
    fi

    if [[ "$path" == "src/emc/tooldata/tooldata_mmap.cc" ]]; then
        native_backend_blockers+=("$path")
    fi

    if grep -Eq 'Python\.h|boost/python|pythonplugin|PyObject|PyInit_' "$full_path"; then
        python_blockers+=("$path")
    fi

    if grep -Eq 'dlopen|dlsym|RTLD_' "$full_path"; then
        dlopen_blockers+=("$path")
    fi

    if grep -Eq 'mkstemp|mkstemps|dirent\.h|opendir|readdir|unistd\.h' "$full_path"; then
        native_fs_blockers+=("$path")
    fi

    if [[ "$path" != src/emc/tooldata/* ]] && grep -Eq 'tooldata/tooldata.hh|tooldata_' "$full_path"; then
        shimmed_tooldata_users+=("$path")
    fi
done < "$manifest"

print_group() {
    local title=$1
    shift
    echo "[$title]"
    if [[ $# -eq 0 ]]; then
        echo "(none)"
    else
        printf '%s\n' "$@" | LC_ALL=C sort -u
    fi
    echo
}

print_group "python" "${python_blockers[@]}"
print_group "dlopen" "${dlopen_blockers[@]}"
print_group "tooldata" "${tooldata_blockers[@]}"
print_group "tooldata-users" "${shimmed_tooldata_users[@]}"
print_group "native-backend" "${native_backend_blockers[@]}"
print_group "native-fs" "${native_fs_blockers[@]}"