FROM node:20-alpine AS frontend-builder

# Build frontend
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm ci

COPY frontend/ ./
# Build for production with relative API paths
RUN npm run build

# Main container with Python and built frontend
FROM python:3.11-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Copy and install Python dependencies
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend application
COPY . ./

# Copy built frontend from builder stage
COPY --from=frontend-builder /app/frontend/dist ./frontend/dist

# Create necessary directories
RUN mkdir -p uploads

# Set environment variables
ENV PYTHONPATH=/app
ENV FLASK_APP=app.py
ENV FLASK_ENV=production

# Expose single port
EXPOSE 12015

# Health check
HEALTHCHECK --interval=30s --timeout=10s --retries=3 --start-period=40s \
  CMD curl -f http://localhost:12015/api/health || exit 1

# Run with Gunicorn for production
CMD ["gunicorn", "--bind", "0.0.0.0:12015", "--worker-class", "gthread", "--workers", "4", "--threads", "8", "--timeout", "120", "--keep-alive", "10", "--max-requests", "2000", "--max-requests-jitter", "200", "--forwarded-allow-ips", "*", "--access-logfile", "-", "app:app"]