name: Reusable - Create operator pull request

on:
  workflow_call:
    inputs:
      version:
        type: string
        required: true
    secrets:
      OPENTELEMETRYBOT_GITHUB_TOKEN:
        required: true
  # to help with partial release build failures
  workflow_dispatch:
    inputs:
      version:
        description: "Version"
        required: true

jobs:
  create-operator-pull-request:
    runs-on: ubuntu-latest
    steps:
      - name: Sync opentelemetry-operator fork
        env:
          # this is the personal access token used for "gh repo sync" below
          GH_TOKEN: ${{ secrets.OPENTELEMETRYBOT_GITHUB_TOKEN }}
        run: |
          # synchronizing the fork is fast, and avoids the need to fetch the full upstream repo
          # (fetching the upstream repo with "--depth 1" would lead to "shallow update not allowed"
          #  error when pushing back to the origin repo)
          gh repo sync opentelemetrybot/opentelemetry-operator \
              --source open-telemetry/opentelemetry-operator \
              --force

      - uses: actions/checkout@v3
        with:
          repository: opentelemetrybot/opentelemetry-operator
          # this is the personal access token used for "git push" below
          token: ${{ secrets.OPENTELEMETRYBOT_GITHUB_TOKEN }}

      - name: Update version
        env:
          VERSION: ${{ inputs.version }}
        run: |
          echo $VERSION > autoinstrumentation/java/version.txt

      - name: Use CLA approved github bot
        run: |
          # cannot run the use-cla-approved-github-bot.sh script here since in a different repo
          git config user.name opentelemetrybot
          git config user.email 107717825+opentelemetrybot@users.noreply.github.com

      - name: Create pull request against opentelemetry-operator
        env:
          VERSION: ${{ inputs.version }}
          # this is the personal access token used for "gh pr create" below
          GH_TOKEN: ${{ secrets.OPENTELEMETRYBOT_GITHUB_TOKEN }}
        run: |
          message="Update the javaagent version to $VERSION"
          # note that @open-telemetry/java-instrumentation-approvers cannot be used below
          # because opentelemetrybot is not a member of the OpenTelemetry org,
          # and so it cannot @ mention OpenTelemetry org groups
          body="Update the javaagent version to \`$VERSION\`.

          cc @laurit @mateuszrzeszutek @trask
          "
          branch="update-opentelemetry-javaagent-to-${VERSION}"

          # gh pr create doesn't have a way to explicitly specify different head and base
          # repositories currently, but it will implicitly pick up the head from a different
          # repository if you set up a tracking branch

          git checkout -b $branch
          git commit -a -m "$message"
          git push --set-upstream origin $branch
          gh pr create --title "$message" \
                       --body "$body" \
                       --repo open-telemetry/opentelemetry-operator \
                       --base main