FROM python:3.9-slim

WORKDIR /code

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

# Copy requirements first to leverage Docker cache
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create necessary directories
RUN mkdir -p /code/music /code/static /code/templates

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

# Set permissions
RUN chmod -R 755 /code

EXPOSE 7860

CMD ["python", "app.py"]