FROM python:3.12-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    STREAMLIT_BROWSER_GATHER_USAGE_STATS=false

WORKDIR /app

# System deps (timezone data for TZ support)
RUN apt-get update && apt-get install -y --no-install-recommends tzdata && rm -rf /var/lib/apt/lists/*

COPY requirements.txt /app/
RUN pip install -r requirements.txt

COPY . /app

EXPOSE 8501

CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]