name: dependabot

on:
  pull_request:
    types:
      - opened

permissions:
  contents: read

jobs:
  dependabot-automerge:
    runs-on: ubuntu-latest
    if: >
      github.event_name == 'pull_request' &&
      github.event.action == 'opened' &&
      github.event.pull_request.user.login == 'dependabot[bot]' &&
      github.actor_id == 49699333 &&
      github.repository == 'coder/coder'
    permissions:
      pull-requests: write
      contents: write
    steps:
      - name: Dependabot metadata
        id: metadata
        uses: dependabot/fetch-metadata@08eff52bf64351f401fb50d4972fa95b9f2c2d1b # v2.4.0
        with:
          github-token: "${{ secrets.GITHUB_TOKEN }}"

      - name: Approve the PR
        run: |
          echo "Approving $PR_URL"
          gh pr review --approve "$PR_URL"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GH_TOKEN: ${{secrets.GITHUB_TOKEN}}

      - name: Enable auto-merge
        run: |
          echo "Enabling auto-merge for $PR_URL"
          gh pr merge --auto --squash "$PR_URL"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GH_TOKEN: ${{secrets.GITHUB_TOKEN}}

      - name: Send Slack notification
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          PR_TITLE: ${{github.event.pull_request.title}}
          PR_NUMBER: ${{github.event.pull_request.number}}
        run: |
          curl -X POST -H 'Content-type: application/json' \
          --data '{
            "username": "dependabot",
            "icon_url": "https://avatars.githubusercontent.com/u/27347476",
            "blocks": [
              {
                "type": "header",
                "text": {
                  "type": "plain_text",
                  "text": ":pr-merged: Auto merge enabled for Dependabot PR #${{ env.PR_NUMBER }}",
                  "emoji": true
                }
              },
              {
                "type": "section",
                "fields": [
                  {
                    "type": "mrkdwn",
                    "text": "${{ env.PR_TITLE }}"
                  }
                ]
              },
              {
                "type": "actions",
                "elements": [
                  {
                    "type": "button",
                    "text": {
                      "type": "plain_text",
                      "text": "View PR"
                    },
                    "url": "${{ env.PR_URL }}"
                  }
                ]
              }
            ]
          }' ${{ secrets.DEPENDABOT_PRS_SLACK_WEBHOOK }}