FROM tensorflow/tensorflow:2.16.1-jupyter

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential gfortran libblas-dev liblapack-dev \
    libffi-dev libssl-dev libbz2-dev liblzma-dev zlib1g-dev \
    libncurses5-dev libncursesw5-dev libreadline-dev curl git \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for caching
COPY requirements.txt .

# Upgrade pip and install all dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy app source
COPY . .

# Expose Flask port
EXPOSE 7860

# Run Flask API
CMD ["python", "app.py"]