# Use official Python slim image
FROM python:3.10-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# Set working directory
WORKDIR /code

# Install OS dependencies (none needed for Logistic Regression)
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        build-essential && \
    rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python packages
COPY requirements.txt .
RUN pip install --upgrade pip && pip install -r requirements.txt

# Copy app files
COPY . .

# Expose port (FastAPI)
EXPOSE 7860

# Start FastAPI with Uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]