FROM ubuntu:22.04

ENV DEBIAN_FRONTEND=noninteractive

RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        build-essential cmake zlib1g-dev libmbedtls-dev libssl-dev pkg-config ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Ensure /bin/sh supports bash-style options used by test scripts
RUN ln -sf /bin/bash /bin/sh

# Build from source inside the image
WORKDIR /usr/src/libevent

# Copy the source into the image
COPY . .

# Configure and build the project from source, and install it
RUN cmake -S . -B build -DCMAKE_BUILD_TYPE=Release \
    && cmake --build build -- -j$(nproc) \
    && cmake --install build

# Update the shared library cache for installed in /usr/local
RUN ldconfig

ENV PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH
ENV LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

# Default to an interactive shell so the container remains usable
CMD ["/bin/bash"]