name: Automerge

# Triggers:
# - pull_request: fires when PR is opened, labeled, updated, etc.
#   Handles the case where the label is added after CI already passed.
# - workflow_run (CI): fires after the CI workflow completes.
#   This is needed because check_suite and status events don't reliably
#   fire for workflows on the same commit (GitHub prevents infinite loops).
#   Without this, the automerge action never retries after CI passes.
on:
  pull_request:
    types:
      - labeled
      - unlabeled
      - synchronize
      - opened
      - edited
      - ready_for_review
      - reopened
      - unlocked
  pull_request_review:
    types:
      - submitted
  workflow_run:
    workflows: ["CI"]
    types:
      - completed

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

jobs:
  automerge:
    name: Automerge PR
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v6

      - name: Automerge
        uses: pascalgn/automerge-action@v0.16.4
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          MERGE_LABELS: "automerge"
          MERGE_METHOD: "merge"
          MERGE_DELETE_BRANCH: "true"
          MERGE_READY_STATE: "clean"
          UPDATE_METHOD: "rebase"
          BASE_BRANCHES: "main"