FROM python:3.9-slim

# Install system dependencies and Node.js
RUN apt-get update && apt-get install -y curl build-essential \
    && curl -fsSL https://deb.nodesource.com/setup_18.x | bash - \
    && apt-get install -y nodejs && apt-get clean && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

# Copy project
COPY . .

# Build frontend
WORKDIR /app/frontend
RUN npm install --no-audit --prefer-offline
RUN npm run build

# Copy built frontend to Django static directory
RUN mkdir -p /app/staticfiles/frontend && cp -r dist/* /app/staticfiles/frontend/ 2>/dev/null || true

# Collect static files for Django (Whitenoise)
WORKDIR /app
ENV PORT=7860
EXPOSE ${PORT}
RUN python manage.py collectstatic --noinput || true

CMD ["gunicorn", "backend.backend.wsgi:application", "--bind", "0.0.0.0:7860"]