FROM ubuntu:24.04

# This cannot reference external dirs, unfortunately
ARG HALFLIFE_STEAM_FILES=./Half-Life

# Copy HL data files
RUN mkdir -p /opt/hl && chown ubuntu:ubuntu /opt/hl
COPY --chown=ubuntu:ubuntu ${HALFLIFE_STEAM_FILES}/valve /opt/hl/valve
COPY --chown=ubuntu:ubuntu ${HALFLIFE_STEAM_FILES}/valve_hd /opt/hl/valve_hd

ENV DEBIAN_FRONTEND=noninteractive

# Install generic build dependencies
RUN apt-get update && apt-get install --no-install-recommends --no-install-suggests -y \
    \
    # Build essential utilities
    ca-certificates \
    wget \
    build-essential \
    pkg-config \
    python3 \
    git

# Build FWGS hlsdk game libs
ARG FWGS_HLSDK_REF=ae84bfc0c3598fcff605a7b3bb963abe8ec3e295
RUN mkdir -p /build && chown ubuntu:ubuntu /build
USER ubuntu
RUN cd /build && \
    git version && \
    # git > 2.49: git clone --depth 1 --revision ${FWGS_HLSDK_REF} https://github.com/FWGS/hlsdk-portable && \
    mkdir -p hlsdk-portable && \
    cd hlsdk-portable && \
    git init && \
    git remote add origin https://github.com/FWGS/hlsdk-portable && \
    git fetch --depth 1 origin ${FWGS_HLSDK_REF} && \
    git checkout FETCH_HEAD && \
    ./waf \
        configure -8 -T release \
        build \
        install --destdir=/opt/hl

# Cleanup build files
RUN rm -rf /build/hlsdk-portable

# At this point there's:
# /opt/hl with
#   ./valve
#       {dlls, cl_dlls} with fwgs/hlsdk libs