FROM ubuntu:24.04

ENV DEBIAN_FRONTEND=noninteractive
ENV DISPLAY=:1
ENV HOME=/tmp/godot-home
ENV GODOT_PROJECTS=/data/GodotProjects

# ============================================================
# Install desktop, VNC, noVNC and libraries
# ============================================================

RUN apt-get update && apt-get install -y \
    xfce4 \
    xfce4-goodies \
    xfce4-terminal \
    tigervnc-standalone-server \
    novnc \
    websockify \
    dbus-x11 \
    wget \
    curl \
    unzip \
    git \
    git-lfs \
    ca-certificates \
    mesa-utils \
    libgl1-mesa-dri \
    libglx-mesa0 \
    libegl1 \
    libx11-6 \
    libxcursor1 \
    libxinerama1 \
    libxrandr2 \
    libxi6 \
    libxrender1 \
    libxfixes3 \
    libfontconfig1 \
    libfreetype6 \
    libasound2t64 \
    libpulse0 \
    xterm \
    && rm -rf /var/lib/apt/lists/*

# ============================================================
# Install Godot
# ============================================================

RUN cd /tmp && \
    wget -O godot.zip \
    https://github.com/godotengine/godot/releases/download/4.7.1-stable/Godot_v4.7.1-stable_linux.x86_64.zip && \
    unzip godot.zip && \
    mv Godot_v4.7.1-stable_linux.x86_64 /usr/local/bin/godot && \
    chmod +x /usr/local/bin/godot && \
    rm -f godot.zip

# ============================================================
# Create XFCE startup script
# ============================================================

RUN printf '%s\n' \
    '#!/bin/sh' \
    'unset SESSION_MANAGER' \
    'unset DBUS_SESSION_BUS_ADDRESS' \
    'export XDG_CURRENT_DESKTOP=XFCE' \
    'export XDG_SESSION_DESKTOP=xfce' \
    'export XDG_CONFIG_DIRS=/etc/xdg/xdg-xfce:/etc/xdg' \
    'export XDG_DATA_DIRS=/usr/share/xfce4:/usr/local/share:/usr/share' \
    'dbus-launch --exit-with-session startxfce4' \
    > /usr/local/bin/start-xfce.sh \
    && chmod +x /usr/local/bin/start-xfce.sh

# ============================================================
# Run as Hugging Face UID 1000
# ============================================================

USER 1000

WORKDIR /tmp

EXPOSE 7860

# ============================================================
# Start VNC + XFCE + noVNC + Godot
# ============================================================

CMD ["bash", "-c", "\
set -e; \
\
echo '========================================'; \
echo '       GODOT REMOTE EDITOR'; \
echo '========================================'; \
\
if [ -z \"$VNC_PASSWORD\" ]; then \
    echo 'ERROR: VNC_PASSWORD is not configured.'; \
    echo 'Create a Space Secret named VNC_PASSWORD.'; \
    exit 1; \
fi; \
\
if [ ! -d /data ]; then \
    echo 'ERROR: /data Storage Bucket is not mounted.'; \
    exit 1; \
fi; \
\
mkdir -p /tmp/godot-home; \
mkdir -p /tmp/godot-home/.config; \
mkdir -p /tmp/godot-home/.vnc; \
mkdir -p /data/GodotProjects; \
\
export HOME=/tmp/godot-home; \
\
VNC_DIR=$(mktemp -d /tmp/godot-vnc-XXXXXX); \
\
echo 'Creating VNC password...'; \
printf '%s\\n' \"$VNC_PASSWORD\" | vncpasswd -f > \"$VNC_DIR/passwd\"; \
chmod 600 \"$VNC_DIR/passwd\"; \
\
echo 'Cleaning old display files...'; \
vncserver -kill :1 >/dev/null 2>&1 || true; \
rm -f /tmp/.X1-lock; \
rm -f /tmp/.X11-unix/X1; \
mkdir -p /tmp/.X11-unix; \
\
echo 'Starting VNC + XFCE desktop...'; \
vncserver :1 \
    -geometry 1280x720 \
    -depth 24 \
    -localhost no \
    -rfbauth \"$VNC_DIR/passwd\" \
    -xstartup /usr/local/bin/start-xfce.sh; \
\
sleep 6; \
\
echo 'Starting noVNC...'; \
websockify \
    --web=/usr/share/novnc \
    7860 \
    localhost:5901 & \
\
sleep 4; \
\
echo 'Starting Godot Editor...'; \
echo 'Persistent projects: /data/GodotProjects'; \
\
godot \
    --editor \
    --path /data/GodotProjects \
    >/tmp/godot.log 2>&1 & \
\
echo '========================================'; \
echo '       GODOT IS RUNNING'; \
echo '========================================'; \
echo 'Browser port: 7860'; \
echo 'Projects: /data/GodotProjects'; \
echo '========================================'; \
\
wait \
"]