name: Check FastAPI Lambda package size

# Runs on PRs targeting main so a Lambda-size regression fails the PR before
# it can merge to main and roll into the dev deploy — deploy_terraform.yml
# only triggers on push to dev/prod, which is too late (see PR #1469: this
# broke dev for weeks before anyone noticed).
on:
  pull_request:
    branches:
      - main

jobs:
  fast_api_lambda_zip_size_check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Check projected unzipped Lambda size
        run: python3 backend/app/requirements/check_lambda_zip_size.py