name: CI

on:
  push:
    branches: ["main"]
    tags: ["v*"]
  pull_request:
    branches: ["main"]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Build
        run: npm run build

      - name: Check dist is up to date
        if: github.ref_type != 'tag'
        run: |
          if [ -n "$(git status --short dist/)" ]; then
            echo "dist/ is out of date. Run 'npm run build' and commit the result."
            git diff dist/
            exit 1
          fi

  release:
    runs-on: ubuntu-latest
    needs: build
    if: github.ref_type == 'tag'
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Build
        run: npm run build
      
      - name: Make sure tag matches package.json version
        run: |
          TAG_VERSION="${GITHUB_REF#refs/tags/}"
          PACKAGE_VERSION=$(node -p "require('./package.json').version")
          if [ "$TAG_VERSION" != "$PACKAGE_VERSION" ]; then
            echo "Tag version ($TAG_VERSION) does not match package.json version ($PACKAGE_VERSION)"
            exit 1
          fi

      - name: Commit dist to tag
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add --force dist/
          git commit -m "chore: build dist for ${{ github.ref_name }}" || echo "Nothing to commit"
          git tag -f ${{ github.ref_name }}
          git push origin ${{ github.ref_name }} --force

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          generate_release_notes: true