FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Install system dependencies if needed
RUN apt-get update && apt-get install -y --no-install-recommends \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for better caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY src/ ./src/

# Copy static files for UI
COPY static/ ./static/

# Create __init__.py if it doesn't exist (for proper Python package structure)
RUN touch src/__init__.py

# Expose port (Hugging Face Spaces uses 7860 by default, but can use PORT env var)
EXPOSE 7860

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV PORT=7860

# Run the application
# Hugging Face Spaces will set the PORT environment variable
CMD uvicorn src.app:app --host 0.0.0.0 --port ${PORT:-7860}