# Build stage
FROM python:3.11-slim

WORKDIR /app

# Install system dependencies (ffmpeg is critical for yt-dlp)
RUN apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    curl \
    && rm -rf /var/lib/apt/lists/*

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

# Copy application code
COPY . .

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

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

# Expose port
EXPOSE 5000

# Run with Gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "--threads", "2", "--timeout", "120", "wsgi:app"]