name: Release

# Fires when a v* tag is pushed — including tags created through Gitea's
# "New Release" UI. Builds the distributable plugin zip and attaches it to
# the release for that tag (creating the release if only a bare tag was
# pushed). The attached zip is what UpdateChecker serves to WordPress
# sites as the update package.

on:
  push:
    tags:
      - 'v*'

jobs:
  release:
    name: Build and Publish Release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.3'
          tools: composer:v2

      # A tag that disagrees with the plugin header would make sites see a
      # phantom update forever (or never see a real one), so fail fast.
      - name: Verify tag matches plugin version
        id: meta
        run: |
          tag_version="${GITHUB_REF_NAME#v}"
          header_version="$(sed -nE 's/^[[:space:]]*\*?[[:space:]]*Version:[[:space:]]*([^[:space:]]+).*/\1/p' unsupervised-schedular.php | head -1)"
          if [ "$tag_version" != "$header_version" ]; then
            echo "Tag ${GITHUB_REF_NAME} does not match plugin header Version: ${header_version}" >&2
            exit 1
          fi
          echo "version=${header_version}" >> "$GITHUB_OUTPUT"

      - name: Install dependencies
        run: composer install --prefer-dist --no-progress --no-interaction

      - name: Run tests
        run: composer test

      - name: Build plugin zip
        run: composer build

      - name: Publish release with zip asset
        env:
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          api="${GITHUB_SERVER_URL}/api/v1/repos/${GITHUB_REPOSITORY}"
          version="${{ steps.meta.outputs.version }}"
          zip="dist/unsupervised-schedular-${version}.zip"

          # Pre-release versions (1.2.3-rc.1) are flagged so Gitea's
          # /releases/latest endpoint — and therefore the update checker —
          # skips them.
          prerelease=false
          case "$version" in *-*) prerelease=true ;; esac

          # Reuse the release if the tag was created via Gitea's release UI.
          release_id="$(curl -sS -H "Authorization: token ${TOKEN}" \
            "${api}/releases/tags/${GITHUB_REF_NAME}" | jq -r '.id // empty' || true)"

          if [ -z "$release_id" ]; then
            release_id="$(curl -fsS -X POST "${api}/releases" \
              -H "Authorization: token ${TOKEN}" \
              -H 'Content-Type: application/json' \
              -d "{\"tag_name\":\"${GITHUB_REF_NAME}\",\"name\":\"${GITHUB_REF_NAME}\",\"prerelease\":${prerelease}}" \
              | jq -r '.id')"
          fi

          echo "Attaching ${zip} to release ${release_id}"
          curl -fsS -X POST \
            "${api}/releases/${release_id}/assets?name=unsupervised-schedular-${version}.zip" \
            -H "Authorization: token ${TOKEN}" \
            -F "attachment=@${zip}" > /dev/null