#!/bin/bash
COMPONENT=${1}
COMMIT_VERSION=${2}
TAG_VERSION=${3}

IMAGE=massivedecks/${COMPONENT}

push_tag() {
  docker tag "${IMAGE}:${COMMIT_VERSION}" "${IMAGE}:${1}"
  docker push "${IMAGE}:${1}"
}

echo "${DOCKER_PASSWORD}" | docker login -u "${DOCKER_USERNAME}" --password-stdin
docker push "${IMAGE}:${COMMIT_VERSION}"

if [ -n "${TAG_VERSION}" ]; then
  RE="^([0-9]*)([.]([0-9]*)([.]([0-9]*)(-([0-9A-Za-z-]*))?)?)?$"
  if [[ "${TAG_VERSION}" =~ ${RE} ]]; then
    MAJOR="${BASH_REMATCH[1]}"
    MINOR="${BASH_REMATCH[3]:-0}"
    PATCH="${BASH_REMATCH[5]:-0}"
    PRERELEASE="${BASH_REMATCH[7]}"
    if [ -n "${PRERELEASE}" ]; then
      push_tag "${MAJOR}.${MINOR}.${PATCH}-${PRERELEASE}"
    else
      push_tag "${MAJOR}.${MINOR}.${PATCH}"
      push_tag "${MAJOR}.${MINOR}"
      push_tag "${MAJOR}"
    fi
  else
    echo "Non-semver tag name \"${TAG_VERSION}\"." >&2
    exit 1
  fi
fi

push_tag "latest"