# ---- Build stage ----
FROM hexpm/elixir:1.18.4-erlang-26.2.5.18-debian-bookworm-20260223-slim AS builder

RUN apt-get update && apt-get install -y --no-install-recommends \
  build-essential \
  git \
  curl \
  && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

ENV MIX_ENV=prod

COPY mix.exs mix.lock ./
RUN mix deps.get --only prod
RUN mix deps.compile

COPY config config
COPY assets assets
COPY priv priv
COPY lib lib

RUN mix assets.setup && mix assets.deploy
RUN mix compile && mix release

# ---- Runtime stage ----
FROM debian:bookworm-slim AS runtime

RUN apt-get update && apt-get install -y --no-install-recommends \
  libstdc++6 \
  openssl \
  libncurses5 \
  locales \
  ca-certificates \
  && apt-get clean && rm -rf /var/lib/apt/lists/*

RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen
ENV LANG=en_US.UTF-8

WORKDIR /app
RUN chown nobody /app

COPY --from=builder --chown=nobody:root /app/_build/prod/rel/cobblemon_ui ./

USER nobody

ENV PHX_SERVER=true
EXPOSE 4000

CMD ["/app/bin/cobblemon_ui", "start"]