FROM node:20-alpine AS deps
WORKDIR /app
COPY package*.json ./
RUN npm ci

FROM deps AS build
COPY tsconfig.json ./
COPY src ./src
RUN npm run build

FROM node:20-alpine AS runtime
WORKDIR /app
ENV NODE_ENV=production
ENV PORT=3000

COPY package*.json ./
RUN npm ci --omit=dev

COPY --from=build /app/dist ./dist

EXPOSE 3000
CMD ["node", "dist/index.js"]
