# The version of Elixir to use
# ATTENTION: when changing Elixir version, make sure to update the `ALPINE_VERSION` arg
# as well as the Elixir version in mix.exs and .gitlab-ci.yml and Dockerfile.dev and .tool-versions
ARG ELIXIR_VERSION=1.12

# The version of Alpine to use for the final image
# This should match the version of Alpine that the current elixir & erlang images (in Step 1) use.
# To find this you need to:
# 1. Locate the dockerfile for the elixir image to get the erlang image version
#    e.g. https://github.com/erlef/docker-elixir/blob/master/1.12/Dockerfile
# 2. Locate the corresponding dockerfile for the erlang versio used and copy the alpine version indicated there below:
#    e.g. https://github.com/erlang/docker-erlang-otp/blob/master/24/alpine/Dockerfile
ARG ALPINE_VERSION=3.14

# The following are build arguments used to change variable parts of the image, they should be set as env variables.
# The name of your application/release (required)
ARG APP_NAME
# The version of the application we are building (required)
ARG APP_VSN
ARG FLAVOUR
ARG FLAVOUR_PATH

#### STEP 1 - Build our app
FROM elixir:${ELIXIR_VERSION}-alpine as builder 

ENV HOME=/opt/app/ TERM=xterm MIX_ENV=prod APP_NAME=$APP_NAME FLAVOUR=$FLAVOUR FLAVOUR_PATH=./
WORKDIR $HOME

# necessary utils
RUN apk add --no-cache curl git rust cargo npm bash

# dependencies for comeonin
RUN apk add --no-cache make gcc libc-dev

# Cache elixir deps
COPY mix.exs mess.exs mix.lock ./
# sometimes mix tries to read the config
RUN mkdir -p ./config 
COPY data/current_flavour/config/config_basics.exs ./config/config.exs

# get deps from hex.pm
COPY data/current_flavour/config/deps.hex ./config/ 
RUN mix do local.hex --force, local.rebar --force
RUN mix do deps.get --only prod

# Compile elixir deps (warning this makes the assumption that no Bonfire extensions are coming from Hex. otherwise this should be done only after copying config)
# RUN MIX_ENV=prod mix do deps.compile

# git deps (i.e. Bonfire extensions)
COPY data/current_flavour/config/deps.git ./config/
RUN mix do deps.get --only prod

# we need config before compiling Bonfire extensions
COPY data/current_flavour/config/* ./config/

RUN rm ./config/deps.path
# Comment the line above and uncomment the ones below only if you want to include locally-forked deps in the release
# RUN ls -la ./config
# RUN MIX_ENV=prod mix do deps.compile

# Update Bonfire extensions to latest git version 
RUN mix do bonfire.deps.update

# Uncomment these lines only if you want to include locally-forked deps in the release
# COPY data/current_flavour/config/deps.path ./config 
# COPY forks/ ./ 
# RUN mix do deps.get --only prod

# JS package manager
RUN npm install -g pnpm
# install JS deps
COPY assets/package.json assets/pnpm-lock.yaml assets/install.sh ./assets/
RUN chmod +x assets/install.sh && bash assets/install.sh
RUN chmod +x config/deps.js.sh && bash config/deps.js.sh

# Compile Bonfire extensions
RUN MIX_ENV=prod mix do deps.compile

# migrations
COPY data/current_flavour/repo priv/repo

# bonfire-app code & assets 
COPY lib lib
COPY assets assets
# RUN ls -la .
# RUN ls -la assets/
# RUN ls -la priv/
# RUN ls -la priv/repo/
# COPY . .

# In case some dep lockfile has a different version
RUN mix do deps.get --only prod

# prepare static assets
RUN mix assets.release
RUN MIX_ENV=prod CI=1 mix phx.digest

# build final OTP release
RUN MIX_ENV=prod CI=1 mix release

##### STEP 2 - Prepare the server image
# From this line onwards, we're in a new image, which will be the image used in production
FROM alpine:${ALPINE_VERSION}

# The name of your application/release (required)
ARG APP_NAME
ARG APP_VSN
ARG APP_BUILD
ARG PROXY_FRONTEND_URL

ENV APP_NAME=${APP_NAME} APP_VSN=${APP_VSN} APP_REVISION=${APP_VSN}-${APP_BUILD}

# Essentials
RUN apk add --update --no-cache \
  mailcap \
  ca-certificates \
  openssh-client \
  openssl-dev \
  # ^ for HTTPS
  git \ 
  build-base \ 
  # ^ required by tree_magic 
  tzdata \
  gettext \
  # ^ localisation
  bash \
  curl

WORKDIR /opt/app

# install app 
COPY --from=builder /opt/app/_build/prod/rel/bonfire /opt/app

# start
CMD ["./bin/bonfire", "start"]
