# Multi-stage Dockerfile to build tmux from source on Debian oldstable-slim
# Stage 1: build
FROM debian:oldstable-slim AS builder
LABEL maintainer="BuildAgent"
ENV DEBIAN_FRONTEND=noninteractive

# Install build dependencies (Autotools, libevent, ncurses, yacc/bison, etc.)
RUN apt-get update -y \
 && apt-get install -y --no-install-recommends \
    build-essential \
    autoconf \
    automake \
    pkg-config \
    libevent-dev \
    libncurses-dev \
    bison \
    flex \
 && rm -rf /var/lib/apt/lists/*

# Copy source and build
WORKDIR /src
COPY . .

# Ensure autogen.sh is executable
RUN chmod +x autogen.sh

RUN sh autogen.sh \
 && ./configure \
 && make -j$(nproc) \
 && make install

# Stage 2: runtime image
FROM debian:oldstable-slim
LABEL maintainer="BuildAgent"
ENV DEBIAN_FRONTEND=noninteractive

# Install runtime dependencies (ncurses libraries). Libevent will be provided from /usr/local
RUN apt-get update -y \
 && apt-get install -y --no-install-recommends \
    libncurses5 \
    libtinfo5 \
 && rm -rf /var/lib/apt/lists/*

# Copy installed files from builder
COPY --from=builder /usr/local /usr/local

# Ensure the dynamic linker can find /usr/local/lib
ENV LD_LIBRARY_PATH=/usr/local/lib:${LD_LIBRARY_PATH}

# Default command: run tmux
CMD ["tmux"]