FROM python:3.11-slim

WORKDIR /app

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

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

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

# Copy application files
COPY . .

# Create necessary directories with proper permissions
RUN mkdir -p uploads results && chmod 755 uploads results

# Expose port
EXPOSE 7860

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

# Run the application
CMD ["python", "app.py"]