# adapted from example on pnpm.io
FROM node:20-slim AS base
ENV PNPM_HOME="/pnpm"
ENV PATH="$PNPM_HOME:$PATH"
RUN corepack enable
COPY package.json pnpm-lock.yaml /app/
WORKDIR /app

FROM base AS prod-deps
RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --prod --frozen-lockfile

# install dev dependencies which are needed for building, such as typescript:
FROM base AS build
RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --frozen-lockfile
COPY tsconfig.json /app/
COPY src /app/src
RUN pnpm run build

FROM base
COPY --from=prod-deps /app/node_modules /app/node_modules
COPY --from=build /app/dist /app/dist
WORKDIR /app/dist
CMD [ "node", "index.js" ]