FROM erlang:28-alpine AS builder

RUN for i in 1 2 3 4 5; do \
      apk add --no-cache elixir nodejs npm git && break; \
      echo "apk retry $i/5..."; sleep 15; \
    done

WORKDIR /app

RUN git clone --depth 1 https://github.com/thiagoesteves/observer_web.git .

RUN mix local.hex --force && mix local.rebar --force && mix deps.get && mix deps.compile

COPY docker/observer_web/build-assets.config.exs config/build-assets.config.exs
RUN printf '\nimport_config "build-assets.config.exs"\n' >> config/config.exs

RUN mkdir -p priv/static && \
    touch priv/static/app.css && touch priv/static/app.js && \
    cd assets && \
    npm install && \
    npm install --save-dev tailwindcss@4.1.0 @tailwindcss/cli @tailwindcss/forms esbuild@0.17.11 && \
    cd .. && \
    mix assets.build && \
    rm -rf assets/node_modules /root/.npm /root/.cache .git

FROM erlang:28-alpine AS runtime

RUN for i in 1 2 3 4 5; do \
      apk add --no-cache elixir inotify-tools && break; \
      echo "apk retry $i/5..."; sleep 15; \
    done

RUN mix local.hex --force && mix local.rebar --force

WORKDIR /app
COPY --from=builder /app /app
COPY docker/observer_web/dev.exs ./dev.exs

EXPOSE 4000

ENV RELEASE_COOKIE=eventhub_cookie
CMD elixir --sname observer_web@observer_web --cookie "${RELEASE_COOKIE}" -S mix run --no-halt dev.exs