# Build stage
FROM python:3.11-slim as builder

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    python3-dev \
    && rm -rf /var/lib/apt/lists/*

# Create and activate virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

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

# Runtime stage
FROM python:3.11-slim

# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    libcairo2 \
    libpango-1.0-0 \
    libpangocairo-1.0-0 \
    libgdk-pixbuf-2.0-0 \
    libffi-dev \
    shared-mime-info \
    && rm -rf /var/lib/apt/lists/*

# Copy static ffmpeg
COPY --from=mwader/static-ffmpeg:6.1 /ffmpeg /usr/local/bin/
COPY --from=mwader/static-ffmpeg:6.1 /ffprobe /usr/local/bin/

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

WORKDIR /app

# Copy application code
COPY app.py .
COPY templates/ templates/
COPY static/ static/

# Create directories for data persistence
RUN mkdir -p /app/videos /app/data

# Create directories for data persistence
RUN mkdir -p /app/videos /app/data

# Environment variables
ENV PYTHONUNBUFFERED=1
ENV FLASK_APP=app.py
ENV FLASK_ENV=production

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:5001/ || exit 1

# Expose port
EXPOSE 5001

# Run with Gunicorn for production
CMD ["gunicorn", "--bind", "0.0.0.0:5001", "--workers", "2", "--threads", "4", "--timeout", "120", "app:app"]