#!/bin/bash

# update latest available version in /var/run/.ncp-latest-version

TEMPDIR="$( mktemp -d /tmp/ncp-check.XXXXXX || ( echo "Failed to create temp dir. Exiting" >&2; exit 1 ) )"
trap "rm -rf \"${TEMPDIR}\"; exit 0" 0 1 2 3 15

BRANCH="master"
{ [[ -f /.dockerenv ]] || [[ -f /.docker-image ]] || [[ "$DOCKERBUILD" == 1 ]]; } && BRANCH="docker-stable"

git clone -b "$BRANCH" --depth 20 -q --bare https://github.com/nextcloud/nextcloudpi.git "$TEMPDIR" || {
  echo "The git clone command failed: No connectivity to https://github.com ?" >&2
  exit 1
}

cd "$TEMPDIR" || exit 1
VER=$( git describe --always --tags | grep -oP "v\d+\.\d+\.\d+" )

canary="$(. /usr/local/etc/library.sh; find_app_param ncp-community.sh CANARY)"

[[ "$canary" != "yes" ]] && [[ -f "/usr/local/etc/instance.cfg" ]] && {
  cohorte_id="$(jq .cohorteId /usr/local/etc/instance.cfg)"
  [[ -f "./staged_rollouts/${VER}.txt" ]] && {
    grep "^${cohorte_id}$" "./staged_rollouts/${VER}.txt" || {
      echo "Skipping version $VER - cohorte ${cohorte_id} not yet active"
      cd / || exit 1
      exit 0
    }
  }
}

grep -qP "v\d+\.\d+\.\d+" <<< "$VER" && {       # check format
  echo "$VER" > /var/run/.ncp-latest-version

  # write changelog
  git log --graph --oneline --decorate \
    --pretty=format:"[%D] %s" --date=short | \
    grep 'tag: v' | \
    sed '/HEAD ->\|origin/s|\[.*\(tag: v[0-9]\+\.[0-9]\+\.[0-9]\+\).*\]|[\1]|' | \
    sed 's|* \[tag: |[|' > /usr/local/etc/ncp-changelog
}
cd / || exit 1