#!/bin/bash
set -eox pipefail

if [ -z "$1" ] && [ -n "$CI" ]; then
  echo "Usage: ./build.sh \$VERSION_SHORT"
  exit 1
elif [ "$CI" == "true" ]; then
  VERSION_SHORT="$1"
else
  VERSION_SHORT=$(find . -maxdepth 1 -type d | sort | tail -1 | grep -o "[0-9].[0-9]*")
  EXTRA_TAG=latest
fi

cd "$VERSION_SHORT" || exit

VERSION=$(grep -oP '[0-9]+\.[0-9]+\.[0-9]+' Dockerfile | head -1)
DOCKER_REPO=factoriotools/factorio

if [ "$TRAVIS_PULL_REQUEST" == "true" ]; then
  TAGS="$DOCKER_REPO:$TRAVIS_PULL_REQUEST_SLUG"
else
  if [ "$TRAVIS_BRANCH" == "master" ] || [ "$TRAVIS_BRANCH" == "$VERSION" ]; then
    TAGS="$DOCKER_REPO:$VERSION -t $DOCKER_REPO:$VERSION_SHORT"
  elif [ -n "$TRAVIS_BRANCH" ]; then
    TAGS="$DOCKER_REPO:$TRAVIS_BRANCH"
  elif [ "$CI" == "" ]; then
    TAGS="$DOCKER_REPO:$VERSION -t $DOCKER_REPO:$VERSION_SHORT"
  fi

  if [ -n "$EXTRA_TAG" ]; then
    TAGS="$TAGS -t $DOCKER_REPO:$EXTRA_TAG"
  fi
fi

# shellcheck disable=SC2086
docker build . -t $TAGS
docker images

if [[ "$(dirname "$(git diff --name-only HEAD^)")" =~ $VERSION_SHORT ]] && [ "$TRAVIS_BRANCH" == "master" ] && [ "$TRAVIS_PULL_REQUEST_BRANCH" == "" ] ||
  [ "$TRAVIS_BRANCH" == "$VERSION" ] && [ "$TRAVIS_PULL_REQUEST_BRANCH" == "" ] ||
  [ "$CI" == "" ]; then

  if [ "$CI" == "true" ]; then
    echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
  fi

  if [ -n "$TRAVIS_BRANCH" ] && [ "$TRAVIS_BRANCH" != "$VERSION" ]; then
    docker push "$DOCKER_REPO:$TRAVIS_BRANCH"
  fi
  if [ -n "$TRAVIS_TAG" ] || [ "$CI" == "" ]; then
    docker push "$DOCKER_REPO:$VERSION"
    docker push "$DOCKER_REPO:$VERSION_SHORT"
  fi
  if [ -n "$EXTRA_TAG" ]; then
    docker push "$DOCKER_REPO:$EXTRA_TAG"
  fi

  curl -X POST https://hooks.microbadger.com/images/factoriotools/factorio/TmmKGNp8jKcFqZvcJhTCIAJVluw=
fi