FROM python:3.10-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    PORT=7860 \
    MPLCONFIGDIR=/tmp/matplotlib

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender1 \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .

RUN pip install --upgrade pip && \
    pip install -r requirements.txt && \
    pip install gunicorn

COPY . .

RUN mkdir -p /tmp/matplotlib /app/static/uploads /app/static/results

EXPOSE 7860

CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "1", "--threads", "4", "--timeout", "180", "app:app"]