pulls-merged.yml

---
name: PR Merged Actions

# Warning, this job is running on pull_request_target and therefore has access to issue content.
# Don't add any steps that act on external code.
on:
  pull_request_target:
    branches: [main]
    types: [closed]

permissions:
  pull-requests: write
  issues: write

jobs:
  pull-request-merged:
    runs-on: ubuntu-latest
    environment: botmobile
    steps:
      - name: App token generate
        uses: actions/create-github-app-token@d72941d797fd3113feb6b93fd0dec494b13a2547  # v1.12.0
        if: ${{ vars.BOT_CLIENT_ID }}
        id: app-token
        with:
          app-id: ${{ vars.BOT_CLIENT_ID }}
          private-key: ${{ secrets.BOT_PRIVATE_KEY }}

      - name: Get active milestone
        id: milestone
        env:
          PR_NUMBER: ${{  github.event.pull_request.number  }}
          GH_TOKEN: ${{ steps.app-token.outputs.token || github.token }}
        run: |
          # The furthest open milestone in the future should be current main
          gh api repos/$GITHUB_REPOSITORY/milestones --jq '
                map(select(.state == "open" and .due_on != null))
                | sort_by(.due_on) | reverse
                | .[0] | { number, title }
                | to_entries
                | map(.key + "=" + (.value|tostring)) | join("\n")' | tee -a $GITHUB_OUTPUT

      - name: Thank you
        if: |
          github.event.pull_request.merged == true &&
          github.event.pull_request.author_association != 'OWNER' &&
          github.event.pull_request.author_association != 'MEMBER' &&
          github.event.pull_request.author_association != 'COLLABORATOR'
        env:
          PR_NUMBER: ${{  github.event.pull_request.number  }}
          GH_TOKEN: ${{ steps.app-token.outputs.token || github.token }}
          MILESTONE: ${{ steps.milestone.outputs.title }}
          MESSAGE: >-
            Thanks for your contribution! Your pull request has been merged and will be part of
            ${{ steps.milestone.outputs.title }}. We appreciate the time and effort you put into
            improving Thunderbird. If you haven’t already, you’re welcome to join our Matrix chat
            for contributors. It’s where we discuss development and help each other out.
            https://matrix.to/#/#tb-android-dev:mozilla.org

            Hope to see you there! 🚀📱🐦
        run: |
          gh pr comment $PR_NUMBER --repo $GITHUB_REPOSITORY --body "$MESSAGE"

      - name: Set active milestone on PR
        env:
          PR_NUMBER: ${{  github.event.pull_request.number  }}
          GH_TOKEN: ${{ steps.app-token.outputs.token || github.token }}
          MILESTONE: ${{ steps.milestone.outputs.number }}
        run: |
          gh api --method PATCH /repos/$GITHUB_REPOSITORY/issues/$PR_NUMBER -f milestone=$MILESTONE