name: Manage the Subsurface CICD versioning

inputs:
  no-increment:
    description: 'Only get the current version, do not increment it even for push events (Caution: not actually a boolean)'
    default: false
  nightly-builds-secret:
    description: The secret to access the nightly builds repository
    default: ''

outputs:
  version:
    description: The long form version number
    value: ${{ steps.version_number.outputs.version }}
  version_4:
    description: The 4 part version number
    value: ${{ steps.version_number.outputs.version_4 }}
  buildnr:
    description: The build number
    value: ${{ steps.version_number.outputs.buildnr }}

runs:
  using: composite
  steps:
    - name: atomically create or retrieve the build number and assemble release notes for a push (i.e. merging of a pull request)
      if: github.event_name == 'push' && inputs.no-increment == 'false'
      env:
        NIGHTLY_BUILDS_SECRET: ${{ inputs.nightly-builds-secret }}
      shell: bash
      run: |
        if [ -z "$NIGHTLY_BUILDS_SECRET" ]; then
          echo "Need to supply the secret for the nightly-builds repository to increment the version number, aborting."
          exit 1
        fi
        scripts/get-atomic-buildnr.sh $GITHUB_SHA $NIGHTLY_BUILDS_SECRET "CICD-release"

    - name: retrieve the current version number in all other cases
      if: github.event_name != 'push' || inputs.no-increment != 'false'
      env:
        PULL_REQUEST_BRANCH: ${{ github.event.pull_request.head.ref }}
      shell: bash
      run: |
        echo "pull-request.$PULL_REQUEST_BRANCH" > latest-subsurface-buildnumber-extension

    - name: store version number for the build
      id: version_number
      env:
        PULL_REQUEST_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
      shell: bash
      run: |
        git config --global --add safe.directory $GITHUB_WORKSPACE
        # For a pull request we need the information from the pull request branch
        # and not from the merge branch on the pull request
        git checkout $PULL_REQUEST_HEAD_SHA
        version=$(scripts/get-version.sh)
        echo "version=$version" >> $GITHUB_OUTPUT
        version_4=$(scripts/get-version.sh 4)
        echo "version_4=$version_4" >> $GITHUB_OUTPUT
        buildnr=$(scripts/get-version.sh 1)
        echo "buildnr=$buildnr" >> $GITHUB_OUTPUT
        git checkout $GITHUB_SHA