---
name: Release

on:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      release_version:
        description: 'version to release. Ex: v4.3.2'
        required: true
        default: 'v'

jobs:
  release:
    name: Release Images
    runs-on: ubuntu-latest
    permissions:
      contents: write
      deployments: write
      issues: write
      packages: write
    strategy:
      fail-fast: false
      matrix:
        images:
          - prefix: slim-
            environment: Release-SLIM
          - prefix: ""
            environment: Release
    timeout-minutes: 60

    steps:
      - name: Setup Docker BuildX
        uses: docker/setup-buildx-action@v2.9.0

      - name: Login to GHCR
        uses: docker/login-action@v2.1.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Retrieve Current Release Version
        # shellcheck disable=SC2062
        run: |
          RELEASE_VERSION="${{ github.event.release.name }}"

          if [ -z "${RELEASE_VERSION}" ]; then
            echo "No release version found in environment, using input..."
            RELEASE_VERSION="${{ github.event.inputs.release_version }}"
          fi

          # Check the RELEASE_VERSION again
          if [ -z "${RELEASE_VERSION}" ]; then
            echo "Error RELEASE_VERSION is empty. Exiting..."
            exit 1
          fi

          if ! echo "${RELEASE_VERSION}" | grep -E -o "v[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+"; then
            echo "Error: RELEASE_VERSION doesn't look like a semantic version: ${RELEASE_VERSION}"
            exit 2
          fi

          SEMVER_VERSION=${RELEASE_VERSION#v}
          SEMVER_MAJOR_VERSION=${SEMVER_VERSION%%.*}
          SEMVER_MAJOR_VERSION_WITH_PREFIX=v${SEMVER_MAJOR_VERSION}

          {
            echo "RELEASE_VERSION=${RELEASE_VERSION}"
            echo "SEMVER_VERSION=${SEMVER_VERSION}"
            echo "SEMVER_MAJOR_VERSION=${SEMVER_MAJOR_VERSION}"
            echo "SEMVER_MAJOR_VERSION_WITH_PREFIX=${SEMVER_MAJOR_VERSION_WITH_PREFIX}"
          } >> "${GITHUB_ENV}"

      - name: Start ${{ matrix.images.environment }} Deployment
        uses: bobheadxi/deployments@v1.4.0
        id: deployment
        with:
          step: start
          token: ${{ secrets.GITHUB_TOKEN }}
          env: ${{ matrix.images.environment }}

      # We don't rebuild the image to avoid that the latest tag and the release tags don't point to what the release tag is pointing to.
      # Instead, we pull the latest image and tag it.
      - name: Retag and Push Images
        uses: akhilerm/tag-push-action@v2.1.0
        with:
          src: ghcr.io/super-linter/super-linter:${{ matrix.images.prefix }}latest
          dst: |
            ghcr.io/super-linter/super-linter:${{ matrix.images.prefix }}${{ env.SEMVER_MAJOR_VERSION_WITH_PREFIX }}
            ghcr.io/super-linter/super-linter:${{ matrix.images.prefix }}${{ env.RELEASE_VERSION }}

      - name: Checkout Code
        uses: actions/checkout@v3
        with:
          # Full git history is needed to get a proper list of commits and tags
          fetch-depth: 0

      # We use ^{} to recursively deference the tag to get the commit the tag is pointing at.
      # Then, we use that reference to create new tags, so that the new tags point to the commit
      # the original tag was pointing to, and not to the original tag.
      # This notation is documented at https://git-scm.com/docs/gitrevisions#Documentation/gitrevisions.txt-emltrevgtemegemv0998em
      - name: Update Major Version and Latest Git Tag
        run: |
          git tag --force "${SEMVER_MAJOR_VERSION_WITH_PREFIX}" "${RELEASE_VERSION}^{}"
          git tag --force latest "${RELEASE_VERSION}^{}"
          git push --force origin "refs/tags/${SEMVER_MAJOR_VERSION_WITH_PREFIX}" "refs/tags/latest"

      - name: Update ${{ matrix.images.environment }} Deployment
        uses: bobheadxi/deployments@v1.4.0
        if: always()
        with:
          step: finish
          token: ${{ secrets.GITHUB_TOKEN }}
          status: ${{ job.status }}
          deployment_id: ${{ steps.deployment.outputs.deployment_id }}
          env: ${{ steps.deployment.outputs.env }}
          env_url: https://github.com/super-linter/super-linter/releases/tag/${{ env.RELEASE_VERSION }}

      - name: Create Issue on Failure
        if: failure()
        uses: actions/github-script@v6
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            const create = await github.rest.issues.create({
              owner: context.repo.owner,
              repo: context.repo.repo,
              title: "Failed to deploy release to production",
              body: "Automation has failed us! Failed to push release ${{ env.RELEASE_VERSION }}\nMore information can be found at:\n - ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}",
              assignees: [
                'zkoppert',
                'Hanse00'
              ]
            })