name: deploy staging

on:
  push:
    branches:
      - main
    paths:
      - "backend/src/**"
      - "backend/pyproject.toml"
      - "backend/uv.lock"
      - "backend/Dockerfile"
      - "backend/fly.staging.toml"
      - "backend/alembic/**"
      - "backend/alembic.ini"
      - ".github/workflows/deploy-staging.yml"
  workflow_dispatch:

jobs:
  deploy:
    name: deploy staging
    runs-on: ubuntu-latest
    concurrency: deploy-backend-staging
    steps:
      - uses: actions/checkout@v4

      - name: detect changes
        uses: dorny/paths-filter@v3
        id: changes
        with:
          filters: .github/path-filters.yml

      - uses: superfly/flyctl-actions/setup-flyctl@master

      - name: deploy to fly.io staging
        run: |
          if [ "${{ steps.changes.outputs.migrations }}" == "true" ]; then
            echo "🔄 migrations detected - will run via release_command before deployment"
          fi
          flyctl deploy --config backend/fly.staging.toml --remote-only -a relay-api-staging .
        env:
          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN_STAGING }}