name: Dependabot Automerge

on:
  pull_request_target:
    types:
      - opened
      - reopened
      - synchronize
      - ready_for_review

permissions:
  contents: write
  pull-requests: write

jobs:
  enable-automerge:
    if: github.actor == 'dependabot[bot]'
    runs-on: ubuntu-latest

    steps:
      - name: Read Dependabot metadata
        id: metadata
        uses: dependabot/fetch-metadata@v3
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Enable auto-merge for safe updates
        if: >-
          (steps.metadata.outputs.package-ecosystem == 'npm' ||
          steps.metadata.outputs.package-ecosystem == 'github_actions') &&
          (steps.metadata.outputs.update-type == 'version-update:semver-minor' ||
          steps.metadata.outputs.update-type == 'version-update:semver-patch')
        uses: peter-evans/enable-pull-request-automerge@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          pull-request-number: ${{ github.event.pull_request.number }}
          merge-method: squash