name: Tag & Release Package

on:
  push:
    branches:
      - main

jobs:
  checks:
    runs-on: ubuntu-latest
    outputs:
      pre_release: ${{ steps.versioning.outputs.pre_release }}
      upgraded: ${{ steps.versioning.outputs.upgraded }}
      package_version: ${{ steps.versioning.outputs.package_version }}
    steps:
      - uses: actions/checkout@v2

      - name: Set up Ruby 2.7
        uses: actions/setup-ruby@v1
        with:
          ruby-version: 2.7

      - name: Install bundler
        run: gem install bundler

      - name: Cache dependencies
        uses: actions/cache@v1
        with:
          path: vendor/bundle
          key: ${{ runner.os }}-gem-${{ hashFiles('**/rails-cloud-tasks.gemspec') }}-2.7

      - name: Install dependencies
        run: bundle install

      - name: Fetching Tags
        run: git fetch -t

      - name: Detect version upgrade
        id: versioning
        run: |
          pkg='rails-cloud-tasks'
          package_version=$(bundle info $pkg | grep -o "$pkg \(.*\)" | sed "s/$pkg (\(.*\))/\1/")
          echo "::set-output name=package_version::"$package_version
          upgraded=$(git tag --list | grep -q "${package_version}$" && echo "false" || echo "true")
          echo "::set-output name=upgraded::"$upgraded
          pre_release=$([[ $package_version =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]] && echo "false" || echo "true")
          echo "::set-output name=pre_release::"$pre_release

  release:
    runs-on: ubuntu-latest
    needs: checks
    if: needs.checks.outputs.upgraded == 'true'
    steps:
      - uses: actions/checkout@v2

      - name: Set up Ruby 2.7
        uses: actions/setup-ruby@v1
        with:
          ruby-version: 2.7

      - name: Install bundler
        run: gem install bundler

      - name: Cache dependencies
        uses: actions/cache@v1
        with:
          path: vendor/bundle
          key: ${{ runner.os }}-gem-${{ hashFiles('**/rails-cloud-tasks.gemspec') }}-2.7

      - name: Install dependencies
        run: bundle install

      - name: Create Release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ needs.checks.outputs.package_version }}
          release_name: Release ${{ needs.checks.outputs.package_version }}
          body: |
            Auto-released by bot.
            See commit changes.
          draft: false
          prerelease: ${{ needs.checks.outputs.pre_release }}

      - name: Build package
        run: bundle exec gem build -o rails-cloud-tasks.gem

      - name: Setup RubyGems credentials
        run: |
          mkdir -p $HOME/.gem
          touch $HOME/.gem/credentials
          chmod 0600 $HOME/.gem/credentials
          printf -- "---\n:rubygems: ${{ secrets.RUBYGEMS_API_TOKEN }}\n" > $HOME/.gem/credentials

      - name: Push package
        run: gem push --key rubygems rails-cloud-tasks.gem