FROM node:22-slim AS builder

WORKDIR /app

# Copy package files and install dependencies
COPY package*.json ./
RUN npm install

# Copy application source code
COPY . .

# Build the Vite application
RUN npm run build

# Production runtime image
FROM node:22-slim

WORKDIR /app

# Install 'serve' globally to serve static files
RUN npm install -g serve

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

# Hugging Face Spaces runs containers as user 1000, which is the default 'node' user in this image
RUN chown -R node:node /app
USER node

# Hugging Face Spaces expects the app to listen on port 7860
ENV PORT=7860
EXPOSE 7860

# Start the server, routing all requests to index.html (SPA mode)
CMD ["serve", "-s", "dist", "-l", "7860"]