# Use Python 3.13 slim image
FROM python:3.13-slim

# Set working directory
WORKDIR /app

# Install system dependencies
# Note: LibreOffice is excluded from the base image to reduce size (~500MB)
# It can be installed on-demand via the Admin Panel → System Dependencies
RUN apt-get update && apt-get install -y \
    poppler-utils \
    ffmpeg \
    libmagic1 \
    sudo \
    fonts-noto-color-emoji \
    && 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 code
COPY . .

# Copy and set permissions for entrypoint script
COPY docker-entrypoint.sh /docker-entrypoint.sh
RUN chmod +x /docker-entrypoint.sh

# Create directories for uploads and database
RUN mkdir -p app/static/uploads instance

# Set environment variables
ENV FLASK_APP=app.app:create_app
ENV PYTHONUNBUFFERED=1
ENV FLASK_ENV=production

# Expose port
EXPOSE 5000

# Create a non-root user and grant sudo access for dependency installation
RUN useradd -m -u 1000 appuser && \
    chown -R appuser:appuser /app /docker-entrypoint.sh && \
    echo "Defaults:appuser !requiretty, !use_pty" >> /etc/sudoers && \
    echo "appuser ALL=(ALL) NOPASSWD: /usr/bin/apt-get" >> /etc/sudoers && \
    echo "appuser ALL=(ALL) NOPASSWD: /app/install_libreoffice.sh" >> /etc/sudoers && \
    echo "appuser ALL=(ALL) NOPASSWD: /app/install_emoji_fonts.sh" >> /etc/sudoers && \
    chmod +x /app/install_libreoffice.sh /app/install_emoji_fonts.sh

USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:5000/').read()" || exit 1

# Run the application via entrypoint
ENTRYPOINT ["/docker-entrypoint.sh"]