FROM node:18 AS build

WORKDIR /app

# Copy only package files first (better caching)
COPY package*.json ./

# This layer will be cached if package.json doesn't change
RUN npm ci --legacy-peer-deps

# Copy source code (this changes more often)
COPY . .
RUN npm run build

FROM nginx:alpine
COPY --from=build /app/public /usr/share/nginx/html
RUN echo 'server { listen 80; root /usr/share/nginx/html; index index.html; location / { try_files $uri $uri/ /index.html; } }' > /etc/nginx/conf.d/default.conf
EXPOSE 80