# Use the official Python image that matches the HF Spaces environment
FROM python:3.10-slim

# Set the working directory
WORKDIR /app

# [STEP 1] Install ONLY the necessary system dependencies.
# We need git and git-lfs to clone the model from the Hub.
# We avoid the problematic libgl1-mesa-glx package entirely.
RUN apt-get update && apt-get install -y --no-install-recommends \
    git \
    git-lfs \
    && git lfs install \
    && rm -rf /var/lib/apt/lists/*

# [STEP 2] Copy your requirements file and install Python packages.
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# [STEP 3] Copy the rest of your application code.
COPY . .

# [STEP 4] Set up a non-root user for security.
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH \
    STREAMLIT_SERVER_HEADLESS=true \
    STREAMLIT_SERVER_ENABLE_CORS=false \
    STREAMLIT_SERVER_ENABLE_XSRF_PROTECTION=false \
    STREAMLIT_BROWSER_GATHER_USAGE_STATS=false
RUN useradd -m -u 1000 user
USER user

# [STEP 5] Expose the Streamlit port and define the command to run the app.
EXPOSE 8501
CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]