name: Build and Upload Release

on:
   push:
      tags:
         - 'v**'

   # Allow running manually from the actions tab
   workflow_dispatch:

env:
   # See: https://docs.github.com/en/packages/managing-github-packages-using-github-actions-workflows/publishing-and-installing-a-package-with-github-actions#upgrading-a-workflow-that-accesses-ghcrio
   IMAGE_NAME: 5etools

   # Used to force a clean (i.e., non-incremental) Docker build
   DO_CLEAN_BUILD: 1

concurrency:
   group: "release"
   cancel-in-progress: true

jobs:
   create-release:
      runs-on: ubuntu-latest
      steps:
         -  uses: actions/checkout@master

         -  name: Generate Release Notes
            run: bash ./.github/generate-release-notes.sh ${{ github.ref_name }} | tee RELEASE_NOTES.md

         -  name: Archive Release
            run: |
               zip -r 5etools-${{ github.ref_name }}.zip . -x '*.git*' '*node_modules*' '*.github*'

         -  name: Upload Release
            run: |
               gh release create "${{github.ref_name}}" --title "${{github.ref_name}}" --notes-file RELEASE_NOTES.md 5etools-${{ github.ref_name }}.zip
            env:
               GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

   create-image:
      runs-on: ubuntu-latest
      steps:
         -  uses: actions/checkout@master

         # See: https://stackoverflow.com/a/58178121
         -  name: Set Env
            run: |
               IMAGE_VERSION=${{ github.ref_name }}
               # Strip "v" prefix from tag name
               [[ "${{ github.ref }}" == "refs/tags/"* ]] && IMAGE_VERSION=$(echo $IMAGE_VERSION | sed -e 's/^v//')
               echo "IMAGE_VERSION=$IMAGE_VERSION" >> $GITHUB_ENV

               echo "IMAGE_ID=$(echo ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME | tr '[A-Z]' '[a-z]')" >> $GITHUB_ENV

         -  name: Set Deployed Flag
            run: |
               bash ./.github/set-deployed-flag.sh ${{ github.ref_name }}

         # Remove entries from the `.gitignore` so the gh-pages action can correctly add+commit them to the pages branch
         -  name: Build Service Worker
            run: |
               node --version
               npm --version
               npm i
               npm run build:sw:prod
               sed -i 's/sw.js//g' .gitignore
               sed -i 's/sw-injector.js//g' .gitignore

         -  name: Build SEO Pages
            env:
               VET_SEO_IS_DEV_MODE: true
               VET_BASE_SITE_URL: https://5etools-mirror-2.github.io/
               VET_SEO_IS_SKIP_UA_ETC: true
            run: |
               npm run build:seo -- ${{ github.ref_name }}

         # region See: https://docs.github.com/en/packages/managing-github-packages-using-github-actions-workflows/publishing-and-installing-a-package-with-github-actions#upgrading-a-workflow-that-accesses-ghcrio
         -  name: Build Image
            run: |
               if [[ "${{ github.ref }}" == "refs/tags/"* ]]
               then
                  VERSION_ARRAY=( ${IMAGE_VERSION//./ } )
                  MAJOR=${VERSION_ARRAY[0]}
                  MINOR=${VERSION_ARRAY[1]}
                  POINT=${VERSION_ARRAY[2]}

                  # Create a clean docker image every 4 minor version.
                  if [[ $(echo "$MINOR % 4" | bc) == 0 && $POINT == 0 ]]
                  then
                     DO_CLEAN_BUILD=1
                  fi
               fi

               if [[ $DO_CLEAN_BUILD == 1 ]]
               then
                  # Build a clean image
                  echo "Version is ${{ github.ref_name }}, doing a clean docker build"
                  docker build -t $IMAGE_NAME .
               else
                  # Build an incremental image...
                  echo "Version is ${{ github.ref_name }}, doing an incremental docker build"

                  # Pull the old image
                  docker pull $IMAGE_ID:latest

                  # Save the current CMD from the image
                  SAVE_CMD=$(docker inspect --format='{{json .Config.Cmd}}' $IMAGE_ID:latest)

                  # Convert .dockerignore to .rsync-filter
                  bash ./.github/create-rsync-filter.sh

                  # Run up the previous container, and rsync the current new of files into it
                  CONTAINER_ID=$(docker run -d -v "$(pwd)":/tmp/5et-new $IMAGE_ID:latest  rsync -rlcvF --delete-excluded /tmp/5et-new/ /var/www/localhost/htdocs/)
                  docker logs -f $CONTAINER_ID

                  # Commit the changes
                  docker commit -c "CMD $SAVE_CMD" $CONTAINER_ID $IMAGE_NAME
               fi

         -  name: Log In to Registry
            run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin

         -  name: Push Image
            run: |
               echo IMAGE_ID=$IMAGE_ID
               echo IMAGE_VERSION=$IMAGE_VERSION
               docker tag $IMAGE_NAME $IMAGE_ID:$IMAGE_VERSION
               # Always tag latest when pushing a tag, as we don't expect to ever merge old tags
               [[ "${{ github.ref }}" == "refs/tags/"* ]] && docker tag $IMAGE_NAME $IMAGE_ID:latest
               docker push $IMAGE_ID:$IMAGE_VERSION
               docker push $IMAGE_ID:latest
         # endregion