name: Check Generated Files

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

concurrency:
  group: ${{ github.workflow }}-$${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  check-generated:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          fetch-depth: 2
      - name: Get changed files
        id: changed-files
        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
        with:
          filters: |
            files:
              - '*.nix'
              - 'go.*'
              - '**/*.go'
              - '**/*.proto'
              - 'buf.gen.yaml'
              - 'tools/**'
      - uses: nixbuild/nix-quick-install-action@889f3180bb5f064ee9e3201428d04ae9e41d54ad # v31
        if: steps.changed-files.outputs.files == 'true'
      - uses: nix-community/cache-nix-action@135667ec418502fa5a3598af6fb9eb733888ce6a # v6.1.3
        if: steps.changed-files.outputs.files == 'true'
        with:
          primary-key: nix-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
          restore-prefixes-first-match: nix-${{ runner.os }}-${{ runner.arch }}

      - name: Run make generate
        if: steps.changed-files.outputs.files == 'true'
        run: nix develop --command -- make generate

      - name: Check for uncommitted changes
        if: steps.changed-files.outputs.files == 'true'
        run: |
          if ! git diff --exit-code; then
            echo "❌ Generated files are not up to date!"
            echo "Please run 'make generate' and commit the changes."
            exit 1
          else
            echo "✅ All generated files are up to date."
          fi