# Use Python 3.11 slim image for smaller size
FROM python:3.11-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV FLASK_APP=app.py
ENV FLASK_ENV=production
ENV DATABASE_DIR=/app/data

# Set working directory
WORKDIR /app

# Install system dependencies including ffmpeg for pydub
RUN apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    libsndfile1 \
    curl \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

# 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 . .

# Create the default database directory inside the container
# This will be used if no volume is mounted
RUN mkdir -p /app/data && chmod 777 /app/data

# Also create the external mount point directory
RUN mkdir -p /opt/apps/audiobook-studio-pro-v3 && chmod 777 /opt/apps/audiobook-studio-pro-v3

# Expose port
EXPOSE 5009

# Health check - with longer start period to allow DB initialization
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD curl -f http://localhost:5009/health || exit 1

# Use entrypoint script to ensure directory exists
COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh

ENTRYPOINT ["/entrypoint.sh"]
CMD ["gunicorn", "--bind", "0.0.0.0:5009", "--workers", "2", "--threads", "4", "--timeout", "300", "--access-logfile", "-", "--error-logfile", "-", "app:app"]