# Stage 1: Build the frontend
FROM node:18-alpine AS builder

# Set the working directory
WORKDIR /app/frontend

# Copy package files and install dependencies
COPY frontend/package.json frontend/package-lock.json ./
RUN npm install

# Copy the rest of the frontend code and build it
COPY frontend/ ./
RUN npm run build

# ---

# Stage 2: Build the final Python image
FROM python:3.9-slim

WORKDIR /app

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

# Copy the built frontend assets from the 'builder' stage
COPY --from=builder /app/frontend/build ./static

# Copy your backend application code
COPY . .

# Expose the port your app will run on and define the startup command
EXPOSE 8000
CMD ["gunicorn", "-w", "4", "-k", "uvicorn.workers.UvicornWorker", "app.main:app", "--bind", "0.0.0.0:8000"]