#===============================================================================
# Garry's Mod PropHunt Server - Docker Image
# Repository: https://git.vish.gg/Vish/gmod-prophunt-server
#===============================================================================

FROM debian:bookworm-slim

LABEL maintainer="Vish <dvish92@gmail.com>"
LABEL description="Garry's Mod PropHunt Dedicated Server"
LABEL version="1.0"

# Environment variables
ENV DEBIAN_FRONTEND=noninteractive \
    GMOD_INSTALL_DIR=/home/gmod \
    SERVER_DIR=/home/gmod/serverfiles \
    STEAMCMD_DIR=/home/gmod/steamcmd \
    SRCDS_TOKEN="" \
    SERVER_NAME="PropHunt Server" \
    RCON_PASSWORD="changeme" \
    MAX_PLAYERS="24" \
    MAP="gm_construct" \
    PORT="27015" \
    GAMEMODE="prop_hunt" \
    WORKSHOP_COLLECTION="" \
    TICKRATE="66" \
    TZ="America/Los_Angeles"

# Install dependencies
RUN dpkg --add-architecture i386 && \
    apt-get update && \
    apt-get install -y --no-install-recommends \
        ca-certificates \
        curl \
        wget \
        tar \
        unzip \
        lib32gcc-s1 \
        lib32stdc++6 \
        libsdl2-2.0-0:i386 \
        locales \
        tzdata && \
    sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
    locale-gen && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

ENV LANG=en_US.UTF-8 \
    LANGUAGE=en_US:en \
    LC_ALL=en_US.UTF-8

# Create user and directories
RUN useradd -m -s /bin/bash gmod && \
    mkdir -p ${SERVER_DIR} ${STEAMCMD_DIR} && \
    chown -R gmod:gmod /home/gmod

# Switch to gmod user
USER gmod
WORKDIR /home/gmod

# Install SteamCMD
RUN cd ${STEAMCMD_DIR} && \
    curl -sqL "https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz" | tar zxvf -

# Install Garry's Mod server
RUN cd ${STEAMCMD_DIR} && \
    ./steamcmd.sh +force_install_dir ${SERVER_DIR} \
        +login anonymous \
        +app_update 4020 validate \
        +quit

# Install MetaMod:Source
RUN cd /tmp && \
    METAMOD_VER=$(curl -s "https://mms.alliedmods.net/mmsdrop/1.11/" | grep -oP 'mmsource-[\d.]+-git\d+-linux\.tar\.gz' | tail -1) && \
    wget -q "https://mms.alliedmods.net/mmsdrop/1.11/${METAMOD_VER}" -O metamod.tar.gz && \
    tar -xzf metamod.tar.gz -C ${SERVER_DIR}/garrysmod/ && \
    rm metamod.tar.gz

# Install SourceMod
RUN cd /tmp && \
    SOURCEMOD_VER=$(curl -s "https://sm.alliedmods.net/smdrop/1.11/" | grep -oP 'sourcemod-[\d.]+-git\d+-linux\.tar\.gz' | tail -1) && \
    wget -q "https://sm.alliedmods.net/smdrop/1.11/${SOURCEMOD_VER}" -O sourcemod.tar.gz && \
    tar -xzf sourcemod.tar.gz -C ${SERVER_DIR}/garrysmod/ && \
    rm sourcemod.tar.gz

# Install ULib and ULX
RUN cd /tmp && \
    wget -q "https://github.com/TeamUlysses/ulib/archive/refs/heads/master.zip" -O ulib.zip && \
    unzip -q ulib.zip -d ${SERVER_DIR}/garrysmod/addons/ && \
    mv ${SERVER_DIR}/garrysmod/addons/ulib-master ${SERVER_DIR}/garrysmod/addons/ulib && \
    rm ulib.zip && \
    wget -q "https://github.com/TeamUlysses/ulx/archive/refs/heads/master.zip" -O ulx.zip && \
    unzip -q ulx.zip -d ${SERVER_DIR}/garrysmod/addons/ && \
    mv ${SERVER_DIR}/garrysmod/addons/ulx-master ${SERVER_DIR}/garrysmod/addons/ulx && \
    rm ulx.zip

# Copy configuration files
COPY --chown=gmod:gmod cfg/ ${SERVER_DIR}/garrysmod/cfg/
COPY --chown=gmod:gmod scripts/docker-entrypoint.sh /home/gmod/entrypoint.sh

# Make scripts executable
USER root
RUN chmod +x /home/gmod/entrypoint.sh ${SERVER_DIR}/srcds_run ${SERVER_DIR}/srcds_linux 2>/dev/null || true
USER gmod

# Expose ports
EXPOSE 27015/tcp 27015/udp 27005/udp 27020/udp

# Volumes for persistent data
VOLUME ["/home/gmod/serverfiles/garrysmod/data", \
        "/home/gmod/serverfiles/garrysmod/cfg", \
        "/home/gmod/serverfiles/garrysmod/addons"]

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=120s --retries=3 \
    CMD curl -f http://localhost:27015/ 2>/dev/null || exit 1

WORKDIR ${SERVER_DIR}

ENTRYPOINT ["/home/gmod/entrypoint.sh"]