apidiff-action/.github/workflows/ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: read

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

      - uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm test

      - name: Lint
        run: npm run lint

      - name: Build
        run: npm run build

      - name: Check dist is up to date
        run: |
          if [ -n "$(git status --porcelain dist)" ]; then
            echo "Generated dist files are out of date. Run 'npm run build' and commit the changes."
            exit 1
          fi

  # Test the action itself
  test-action:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-go@v5
        with:
          go-version: 'stable'

      - uses: actions/setup-node@v4
        with:
          node-version: '20'

      # Build the action
      - name: Build action
        run: |
          npm ci
          npm run build

      # Test with breaking changes (should detect them)
      - name: Test with breaking changes
        uses: ./
        id: test-breaking
        with:
          working-directory: testdata/break
          fail-on-breaking: false
          comment-on-pr: false
        env:
          INPUT_OLD: old
          INPUT_NEW: new

      - name: Verify breaking changes detected
        run: |
          if [ "${{ steps.test-breaking.outputs.has-breaking-changes }}" != "true" ]; then
            echo "Expected breaking changes to be detected"
            exit 1
          fi
          echo "Breaking changes detected: ${{ steps.test-breaking.outputs.breaking-count }}"
          echo "Compatible changes: ${{ steps.test-breaking.outputs.compatible-count }}"

          # Verify counts match what we expect
          if [ "${{ steps.test-breaking.outputs.breaking-count }}" != "3" ]; then
            echo "Expected 3 breaking changes, got ${{ steps.test-breaking.outputs.breaking-count }}"
            exit 1
          fi
          if [ "${{ steps.test-breaking.outputs.compatible-count }}" != "1" ]; then
            echo "Expected 1 compatible change, got ${{ steps.test-breaking.outputs.compatible-count }}"
            exit 1
          fi

      # Test with safe changes (should not detect breaking changes)
      - name: Test with safe changes
        uses: ./
        id: test-safe
        with:
          working-directory: testdata/safe
          fail-on-breaking: true
          comment-on-pr: false
        env:
          INPUT_OLD: old
          INPUT_NEW: new

      - name: Verify no breaking changes in safe test
        run: |
          if [ "${{ steps.test-safe.outputs.has-breaking-changes }}" != "false" ]; then
            echo "Expected no breaking changes in safe test"
            exit 1
          fi
          echo "Compatible changes: ${{ steps.test-safe.outputs.compatible-count }}"

          # Verify count matches what we expect
          if [ "${{ steps.test-safe.outputs.compatible-count }}" != "3" ]; then
            echo "Expected 3 compatible changes, got ${{ steps.test-safe.outputs.compatible-count }}"
            exit 1
          fi

      # Test with clean changes (no API changes)
      - name: Test with clean changes
        uses: ./
        id: test-clean
        with:
          working-directory: testdata/clean
          fail-on-breaking: true
          comment-on-pr: false
        env:
          INPUT_OLD: old
          INPUT_NEW: new

      - name: Verify no changes in clean test
        run: |
          if [ "${{ steps.test-clean.outputs.has-breaking-changes }}" != "false" ]; then
            echo "Expected no breaking changes in clean test"
            exit 1
          fi
          if [ "${{ steps.test-clean.outputs.breaking-count }}" != "0" ]; then
            echo "Expected 0 breaking changes, got ${{ steps.test-clean.outputs.breaking-count }}"
            exit 1
          fi
          if [ "${{ steps.test-clean.outputs.compatible-count }}" != "0" ]; then
            echo "Expected 0 compatible changes, got ${{ steps.test-clean.outputs.compatible-count }}"
            exit 1
          fi