update-openapi.yml

name: Update OpenAPI Specification

on:
  workflow_dispatch:
  schedule:
    - cron: "0 0 * * *"

jobs:
  update-openapi:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v4
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
      - name: Update OpenAPI Spec
        id: sync-openapi
        uses: fern-api/sync-openapi@v2
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          branch: 'update-openapi-spec'
          update_from_source: true
          add_timestamp: true
      - name: Auto-approve and enable auto-merge
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          APPROVE_TOKEN: ${{ secrets.AUTO_APPROVE_PAT }}
        run: |
          set -euo pipefail
          
          # Retry loop to find the PR (handles timing issues)
          PR_NUMBER=""
          for i in {1..10}; do
            echo "Attempt $i: Looking for PR..."
            PR_JSON=$(gh pr list --state open --json number,headRefName,createdAt,author,baseRefName \
              | jq 'map(select(.headRefName | startswith("update-openapi-spec-") and .baseRefName=="main" and .author.login=="github-actions[bot]")) 
                    | sort_by(.createdAt) | last')
            PR_NUMBER=$(echo "$PR_JSON" | jq -r '.number // empty')
            
            if [ -n "$PR_NUMBER" ]; then
              echo "Found PR #$PR_NUMBER"
              break
            fi
            
            echo "PR not found yet, waiting 3 seconds..."
            sleep 3
          done
          
          if [ -z "$PR_NUMBER" ]; then
            echo "No matching PR found after retries"
            echo "Open PRs:"
            gh pr list --state open --json number,headRefName,author
            exit 0
          fi
          
          # Auto-approve the PR using the PAT
          if [ -n "${APPROVE_TOKEN:-}" ]; then
            echo "Auto-approving PR #$PR_NUMBER..."
            GH_TOKEN="$APPROVE_TOKEN" gh pr review "$PR_NUMBER" --approve --body "Auto-approved by workflow"
          else
            echo "Warning: AUTO_APPROVE_PAT secret not set. PR will require manual approval."
          fi
          
          # Enable auto-merge
          echo "Enabling auto-merge for PR #$PR_NUMBER..."
          gh pr merge "$PR_NUMBER" --auto --squash
          echo "Auto-merge enabled. PR will merge automatically once all checks pass."