FROM node:20-alpine AS base

FROM base as dev_dep
RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
WORKDIR /home/node/app

# --- dependencies ---
COPY --chown=node:node package*.json ./

USER node
RUN npm install --include=dev

FROM base as dep
RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
WORKDIR /home/node/app

# --- dependencies ---
COPY --chown=node:node package*.json ./

USER node
RUN npm install --omit=dev

#
# === BUILDER ===
#

FROM base as build
RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
WORKDIR /home/node/app

COPY --from=dev_dep /home/node/app/ ./

COPY --chown=node:node . .

RUN npm run build

#
# === RUNNER ===
#

FROM base as run
WORKDIR /home/node/app
COPY --from=dep /home/node/app/ ./
COPY package*.json docker-start.sh ./

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

# --- finalize ---

# set runtime env variables

ENV PORT 3000
ENV NODE_ENV production

EXPOSE 3000
ENTRYPOINT [ "/bin/sh" ]
CMD [ "./docker-start.sh" ]