FROM elixir:1.17-alpine AS build

RUN apk add --no-cache git nodejs npm build-base

WORKDIR /app

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

ENV MIX_ENV=prod

# Fetch Elixir deps first (cached layer)
COPY mix.exs ./
RUN mix deps.get

# Install JS deps from the now-fetched phoenix/phoenix_live_view deps
COPY assets/package.json assets/
RUN cd assets && npm install

# Copy source and compile
COPY config config
COPY lib lib
COPY priv priv
COPY assets assets

RUN mix deps.compile
RUN mix assets.deploy
RUN mix compile
RUN mix phx.digest

EXPOSE 4000

CMD ["mix", "phx.server"]