FROM python:3.11-slim

WORKDIR /app

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

# Copy requirements
COPY requirements.txt .

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

# Copy application files
COPY . .

# Create directories for runtime
RUN mkdir -p /opt/manualFiles

# Expose port
EXPOSE 5000

# Set environment variables
ENV FLASK_APP=app.py
ENV PYTHONUNBUFFERED=1

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:5000/ || exit 1

# Run the application with gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "--timeout", "60", "app:app"]
