# Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: MPL-2.0

# This action creates downstream PRs for PRs with backport labels defined.
# See docs here: https://github.com/hashicorp/backport-assistant

name: Backport Assistant Runner

on:
  pull_request_target:
    types:
      - closed
      - labeled
    branches:
      - main
      - 'release/*.*.x'

jobs:
  backport:
    if: github.event.pull_request.merged
    runs-on: ubuntu-latest
    container: hashicorpdev/backport-assistant:0.4.1
    steps:
      - name: Run Backport Assistant for release branches
        run: |
          backport-assistant backport -merge-method=squash
        env:
          BACKPORT_LABEL_REGEXP: "backport/(?P<target>\\d+\\.\\d+)"
          BACKPORT_TARGET_TEMPLATE: "release/{{.target}}.x"
          GITHUB_TOKEN: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
          ENABLE_VERSION_MANIFESTS: true
  backport-ent:
    if: github.event.pull_request.merged && contains(join(github.event.pull_request.labels.*.name), 'backport/ent')
    runs-on: ubuntu-latest
    steps:
      - name: Trigger backport for Enterprise
        uses: peter-evans/repository-dispatch@ff45666b9427631e3450c54a1bcbee4d9ff4d7c0 # v3.0.0
        with:
          token: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
          repository: hashicorp/consul-enterprise
          event-type: ent-backport
          client-payload: ${{ toJson(github.event) }}
  handle-failure:
    needs:
      - backport
      - backport-ent
    if: always() && (needs.backport.result == 'failure' || needs.backport-ent.result == 'failure')
    runs-on: ubuntu-latest
    steps:
      - name: Comment on PR
        run: |
          github_message="Backport failed @${{ github.event.sender.login }}. Run: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
          curl -s -H "Authorization: token ${{ secrets.PR_COMMENT_TOKEN }}" \
            -X POST \
            -d "{ \"body\": \"${github_message}\"}" \
            "https://api.github.com/repos/${GITHUB_REPOSITORY}/issues/${{ github.event.pull_request.number }}/comments"