FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    gcc \
    g++ \
    curl \
    && rm -rf /var/lib/apt/lists/*

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

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

# Copy application files
COPY . .

# Create necessary directories
RUN mkdir -p /app/static /app/templates

# Expose port (Hugging Face uses port 7860)
EXPOSE 7860

# Set environment variables
ENV FLASK_APP=app.py
ENV FLASK_ENV=production
ENV PYTHONPATH=/app

# Hugging Face Spaces expects the app to run on port 7860
CMD ["python", "app.py"]