FROM librespace/gnuradio:latest

# Build dependencies for gr-lora_sdr (EPFL LoRa SDR OOT module)
# gr-lora_sdr has no apt/pip package — must compile from source
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential cmake git \
    libvolk2-dev libboost-all-dev pybind11-dev \
    && rm -rf /var/lib/apt/lists/*

# Compile gr-lora_sdr (EPFL, chirp spread spectrum decoder)
# https://github.com/tapparelj/gr-lora_sdr
# Pinned to master@862746d (2024-01-xx) — no tagged releases exist
WORKDIR /build
RUN git clone --depth 1 --branch master \
        https://github.com/tapparelj/gr-lora_sdr.git && \
    cd gr-lora_sdr && mkdir build && cd build && \
    cmake -DCMAKE_INSTALL_PREFIX=/usr .. && \
    make -j$(nproc) && make install && \
    ldconfig && \
    rm -rf /build

WORKDIR /flowgraphs

# cmake installs Python bindings to versioned site-packages (3.11) but
# the base image's python3 searches unversioned dist-packages — bridge the gap
ENV PYTHONPATH="/usr/lib/python3.11/site-packages:${PYTHONPATH}"

# XML-RPC port for runtime LoRa parameter control
ENV XMLRPC_PORT=8091
EXPOSE 8091

ENTRYPOINT ["python3"]