FROM python:3.12-slim

ENV PYTHONUNBUFFERED=1
WORKDIR /app

# Install system deps required by numpy/pandas/matplotlib and building wheels
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    gcc \
    gfortran \
    libatlas3-base \
    libopenblas-dev \
    liblapack-dev \
    libfreetype6-dev \
    libpng-dev \
    pkg-config \
    ca-certificates \
    curl \
    git \
    libglib2.0-0 \
    libxrender1 \
    libxext6 \
    libsm6 \
    && rm -rf /var/lib/apt/lists/*

# Copy only requirements first for better layer caching
COPY requirements.txt /app/requirements.txt

# Upgrade pip and install python deps
RUN python -m pip install --upgrade pip setuptools wheel && \
    python -m pip install -r /app/requirements.txt

# Copy only app directory and libs/so (native .so libraries for Linux)
COPY app /app/app
COPY libs/so /app/libs/so

# Set environment variables to use libs/so for native libraries
ENV PYTHONPATH="/app"
ENV LD_LIBRARY_PATH="/app/libs/so"

EXPOSE 8001

# Default command runs uvicorn
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8001"]