name: Release

on:
  pull_request:
    types: [closed]

jobs:
  release:
    if: github.event.pull_request.merged && startsWith(github.head_ref, 'release')
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: '0'

      - name: Set NPM Token
        uses: actions/setup-node@v2
        with:
          registry-url: https://<%= registryUrl %>
        env:
          NODE_AUTH_TOKEN: ${{ secrets.<%= githubNodeAuthTokenName %> }}

      - name: Install
        run: yarn boot

      - name: Build
        run: yarn build

      - name: Run Tests
        run: yarn test

      - name: Get Latest Tag
        id: get_latest_tag
        uses: actions-ecosystem/action-get-latest-tag@v1

      - name: Parse Latest Git Tag
        id: parse_latest_tag
        run: |
          TAG=$(echo ${{ steps.get_latest_tag.outputs.tag }} | cut -d 'v' -f 2)
          echo "::set-output name=tag::${TAG}"

      - name: Get Next Tag Semver
        id: get_next_tag_semver
        uses: WyriHaximus/github-action-next-semvers@v1
        with:
          version: ${{ steps.parse_latest_tag.outputs.tag }}

      - name: Define Publishing Strategy
        id: lerna_strategy
        run: |
          MREPO_LERNA_STRATEGY=$(cat lerna.json | npx jase version)
          echo "MREPO_LERNA_STRATEGY=${MREPO_LERNA_STRATEGY}" >> $GITHUB_ENV

      - name: Define Current Version
        run: |
          echo ${{ env.MREPO_LERNA_STRATEGY }}
          if [ "${{ env.MREPO_LERNA_STRATEGY }}" = "independent" ]; then
            CURRENT_VERSION=${{ steps.get_next_tag_semver.outputs.v_minor }}
            DIST_TAG=$(cat lerna.json | npx jase distTag)
          else
            CURRENT_VERSION=$(cat lerna.json | npx jase version)
            [[ $CURRENT_VERSION =~ "-" ]] && DIST_TAG=$(echo $CURRENT_VERSION | cut -d '-' -f 2 | cut -d '.' -f 1) || DIST_TAG="latest"
            CURRENT_VERSION=v$CURRENT_VERSION
          fi

          echo $CURRENT_VERSION
          echo $DIST_TAG

          echo "CURRENT_VERSION=${CURRENT_VERSION}" >> $GITHUB_ENV
          echo "DIST_TAG=${DIST_TAG}" >> $GITHUB_ENV
      
      - name: Ensure Latest Git Tag
        uses: mukunku/tag-exists-action@v1.0.0
        id: checkTag
        with:
          tag: ${{ env.CURRENT_VERSION }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Create Git Tag
        if: steps.checkTag.outputs.exists == 'false'
        uses: negz/create-tag@v1
        with:
          version: ${{ env.CURRENT_VERSION }}
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Create Release
        if: steps.checkTag.outputs.exists == 'false'
        uses: actions/create-release@v1
        with:
          tag_name: ${{ env.CURRENT_VERSION }}
          release_name: ${{ env.CURRENT_VERSION }}
          body: |
            ${{ github.event.pull_request.body }}
          draft: false
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Publish Packages
        if: steps.checkTag.outputs.exists == 'false'
        run: |
          lerna publish from-package --no-git-reset --yes --registry https://<%= registryUrl %> --dist-tag ${{ env.DIST_TAG }}
        env:
          GH_TOKEN: ${{ secrets.<%= githubNodeAuthTokenName %> }}
          NODE_AUTH_TOKEN: ${{ secrets.<%= githubNodeAuthTokenName %> }}

      - name: Create a Comment
        uses: actions/github-script@0.8.0
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: 'Packages with version [${{ env.CURRENT_VERSION }}](https://github.com/${{ github.repository }}/releases/tag/${{ env.CURRENT_VERSION }}) have been released 🎉'
            })