FROM ubuntu:22.04

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    NODE_ENV=production

# Install system dependencies
RUN apt-get update && apt-get install -y \
    python3.11 \
    python3.11-venv \
    python3-pip \
    nodejs \
    npm \
    git \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Set Python 3.11 as default
RUN update-alternatives --install /usr/bin/python python /usr/bin/python3.11 1 && \
    update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 1

WORKDIR /app

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

# Copy frontend
COPY frontend ./frontend
WORKDIR /app/frontend
RUN npm install && npm run build

# Copy backend
WORKDIR /app
COPY backend ./backend
COPY backend/app.py .

# Expose port (HF Spaces uses 7860)
EXPOSE 7860

# Start the FastAPI server
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]