FROM python:3.11-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libhdf5-dev \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first (for better caching)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy all application files
COPY . .

# Create data directories
RUN mkdir -p /data/uploads /data/chat_history

# Expose the port
EXPOSE 7860

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV DATA_DIR=/data

# Run with gunicorn
CMD ["gunicorn", "-w", "2", "-b", "0.0.0.0:7860", "--timeout", "300", "app:app"]