# Multi-stage build for Certificate Generator App
# Stage 1: Build the React frontend
FROM node:18-slim as frontend-builder

WORKDIR /app/frontend

# Copy frontend package files
COPY frontend/package*.json ./

# Install dependencies
RUN npm ci

# Copy frontend source
COPY frontend/ ./

# Build the frontend
RUN npm run build

# Stage 2: Setup Python backend and serve the app
FROM python:3.11-slim

WORKDIR /app

# Install system dependencies for PyMuPDF
RUN apt-get update && apt-get install -y \
    libmupdf-dev \
    mupdf-tools \
    && rm -rf /var/lib/apt/lists/*

# Copy backend requirements
COPY requirements.txt .

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

# Copy backend code
COPY backend/ ./backend/

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

# Create necessary directories
RUN mkdir -p uploads output

# Expose Hugging Face Spaces port
EXPOSE 7860

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV PORT=7860

# Run the application
CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "7860"]