FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    QUIET=1 \
    GRPC_VERBOSITY=NONE \
    GRPC_TRACE= \
    TF_CPP_MIN_LOG_LEVEL=3

WORKDIR /app

# System deps (optional minimal set)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt ./
RUN pip install --upgrade pip && pip install -r requirements.txt

COPY . .

# Ensure a writable data directory for SQLite
RUN mkdir -p /app/data && chmod -R 777 /app/data

# Default DB_PATH for SQLite
ENV DB_PATH=/app/data/chat_data.db

# Hugging Face Spaces passes PORT env
ENV PORT=7860
EXPOSE 7860

# Default command
CMD ["python", "app.py"]