name: Release

on:
  push:
    tags:
      - "v*"

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          node-version: 22
          cache: npm

      - run: npm ci

      # The tag is the source of truth for a release version. main always carries
      # a `-develop` pre-release suffix, so strip it here (in the ephemeral CI
      # checkout only — never committed) so the built bundle reports the bare
      # X.Y.Z. Guard against tagging the wrong commit: the tag's base must match
      # package.json's base version.
      - name: Align package.json version to the tag
        env:
          TAG_NAME: ${{ github.ref_name }}
        run: |
          VERSION="${TAG_NAME#v}"
          PKG_BASE="$(node -p 'require("./package.json").version.split("-")[0]')"
          if [ "$VERSION" != "$PKG_BASE" ]; then
            echo "Tag $TAG_NAME (base $VERSION) does not match package.json base ($PKG_BASE)." >&2
            echo "Tag the commit whose package.json is ${VERSION}-develop." >&2
            exit 1
          fi
          npm version "$VERSION" --no-git-tag-version --allow-same-version

      - run: npm run build

      - name: Locate bundled output
        id: bundle
        run: |
          for f in dist/index.js dist/worker.js dist/_worker.js; do
            if [ -f "$f" ]; then
              echo "path=$f" >> "$GITHUB_OUTPUT"
              exit 0
            fi
          done
          echo "No bundled output found in dist/" >&2
          exit 1

      - name: Create GitHub Release and upload bundle
        env:
          GH_TOKEN: ${{ github.token }}
          TAG_NAME: ${{ github.ref_name }}
          BUNDLE_PATH: ${{ steps.bundle.outputs.path }}
        run: |
          gh release create "$TAG_NAME" --generate-notes --verify-tag || true
          gh release upload "$TAG_NAME" "$BUNDLE_PATH" --clobber