FROM node:20-alpine AS deps

WORKDIR /app
COPY package*.json ./
RUN npm ci

FROM node:20-alpine AS build

WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY package*.json ./
COPY tsconfig.json ./
COPY src ./src
RUN npm run build

FROM node:20-alpine AS runner

WORKDIR /app
ENV NODE_ENV=production
COPY package*.json ./
RUN npm ci --omit=dev
COPY --from=build /app/dist ./dist
EXPOSE 4000
CMD ["node", "dist/server.js"]