#!/bin/bash

set -euo pipefail
set -x

# Updates the ${build_branch} branch on github with the newer version of the
# agent baked into the Dockerfile.rhel.  We can't use build args or run any
# scripts on the RHEL build service so we have to have the Dockerfile be as
# self-contained as possible.

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

usage() {
  echo "$0 <version> <project_id> [redhat_tag]"
}

if [[ "$#" -lt 2 ]]; then
  usage
  exit 1
fi

version=${1-$(scripts/latest-final-release)}
project_id=$2
redhat_tag=${3-$version}
build_branch="redhat-project"

update_dockerfile() {
  sed -i '' -E -e "s/[4-9]+\.[0-9]+\.[0-9]+/$version/g" Dockerfile.rhel
}

# Reset the ${build_branch} branch to the specified version's tag and ensure the
# Dockerfile.rhel has the right version on the remote repo for the RHEL builder
# service to pick up.
update_branch() {
  rm -rf /tmp/redhat-project
  git worktree add -f -B ${build_branch} /tmp/redhat-project v$version
  pushd /tmp/redhat-project

  update_dockerfile
  read -n1 -p "Press key"

  git add Dockerfile.rhel
  git commit -m "Update RHEL Dockerfile version to $version"
  git push -f origin ${build_branch}

  popd
}

trigger_build() {
  curl -H "Content-Type: application/json" -X POST -d "{\"tag\":\"${redhat_tag}\"}" https://connect.redhat.com/api/v2/projects/${project_id}/build
}

update_branch
trigger_build