# Build stage runs on the host platform to avoid QEMU SIGILL issues with Node.js 22 on arm64
FROM --platform=$BUILDPLATFORM node:22-alpine AS builder
RUN apk add --update --no-cache make gcc g++ git curl openssl

WORKDIR /usr/src/app
COPY . ./

# Build backend code
RUN npm ci && \
     npm run build && \
     npm ci --omit=dev && \
     npm cache clean --force

# Final stage uses the target platform's Node.js runtime
FROM node:22-alpine
RUN apk add --update --no-cache git curl openssl openssh

WORKDIR /usr/src/app
COPY --from=builder /usr/src/app .

ENV NODE_ENV production
ENV PORT 3000
EXPOSE 3000

CMD ["node", "./built/server.js"]