FROM python:3.9-slim

WORKDIR /app

# Install system dependencies including PortAudio, Python dev headers, ALSA,
# and now also OpenGL libraries required by OpenCV.
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    software-properties-common \
    git \
    portaudio19-dev \
    python3-dev \
    libasound2-dev \
    libgl1-mesa-glx \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt ./
# Assuming your main application script is in 'src/streamlit_app.py'
# and any other source code is also under 'src/'
COPY src/ ./src/

# It's good practice to upgrade pip first
RUN pip3 install --upgrade pip
RUN pip3 install -r requirements.txt

EXPOSE 8501

HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health

# Ensure your main Streamlit app file is correctly referenced here.
# If your app file is directly in /app (e.g., app_streamlit_new.py from previous examples),
# adjust the ENTRYPOINT accordingly.
ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]