#!/usr/bin/env bash

set -euo pipefail

required_vars=(
  BRANCH_NAME
  COMMIT_SHA
  REGISTRY_HOST
  REGISTRY_USERNAME
  REGISTRY_PASSWORD
)

for var_name in "${required_vars[@]}"; do
  if [[ -z "${!var_name:-}" ]]; then
    echo "Missing required environment variable: ${var_name}" >&2
    exit 1
  fi
done

short_sha="${COMMIT_SHA:0:7}"

case "${BRANCH_NAME}" in
  dev)
    mutable_tag="dev-latest"
    immutable_tag="dev-${short_sha}"
    ;;
  release)
    mutable_tag="rc-release"
    immutable_tag="rc-${short_sha}"
    ;;
  release/*)
    release_name="${BRANCH_NAME#release/}"
    release_slug="${release_name//\//-}"
    mutable_tag="rc-${release_slug}"
    immutable_tag="rc-${short_sha}"
    ;;
  main)
    mutable_tag="latest"
    immutable_tag="sha-${short_sha}"
    ;;
  *)
    echo "Unsupported branch for publishing: ${BRANCH_NAME}" >&2
    exit 1
    ;;
esac

backend_image="${REGISTRY_HOST}/ctms/ctms-backend"
frontend_image="${REGISTRY_HOST}/ctms/ctms-frontend"

echo "${REGISTRY_PASSWORD}" | docker login "${REGISTRY_HOST}" --username "${REGISTRY_USERNAME}" --password-stdin

docker build \
  -t "${backend_image}:${mutable_tag}" \
  -t "${backend_image}:${immutable_tag}" \
  ./backend

docker build \
  -t "${frontend_image}:${mutable_tag}" \
  -t "${frontend_image}:${immutable_tag}" \
  ./frontend

docker push "${backend_image}:${mutable_tag}"
docker push "${backend_image}:${immutable_tag}"
docker push "${frontend_image}:${mutable_tag}"
docker push "${frontend_image}:${immutable_tag}"