name: Release

# Publishing a release builds every Minecraft version and attaches the mod jars
# to it. mod_version in gradle.properties is the source of truth: the release
# tag must match it (a leading "v" is allowed), so bump mod_version in a PR
# before tagging the release.
on:
  release:
    types: [published]

permissions:
  contents: write

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Check tag matches mod_version
        env:
          TAG: ${{ github.event.release.tag_name }}
        run: |
          MOD_VERSION="$(sed -n 's/^mod_version=//p' gradle.properties | tr -d '[:space:]')"
          if [ "${TAG#v}" != "$MOD_VERSION" ]; then
            echo "::error::Release tag '$TAG' doesn't match mod_version '$MOD_VERSION' in gradle.properties. Bump mod_version to '${TAG#v}' on the release branch, or tag the release '$MOD_VERSION'." >&2
            exit 1
          fi
          echo "Building Saturn Client $MOD_VERSION"

      - name: Set up Java 21
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: 21
          cache: gradle

      - name: Build all versions
        run: |
          chmod +x gradlew
          # buildAll remaps every versions/* project in parallel into build/allJars.
          ./gradlew buildAll --no-daemon --stacktrace

      - name: Upload jars to the release
        env:
          TOKEN: ${{ secrets.GITEA_TOKEN }}
          ASSETS_URL: ${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases/${{ github.event.release.id }}/assets
        run: |
          shopt -s nullglob
          jars=(build/allJars/*.jar)
          if [ ${#jars[@]} -eq 0 ]; then
            echo "No jars found in build/allJars" >&2
            exit 1
          fi

          for jar in "${jars[@]}"; do
            echo "Uploading $(basename "$jar")"
            curl --fail-with-body -sS -X POST \
              -H "Authorization: token $TOKEN" \
              -F "attachment=@$jar" \
              "$ASSETS_URL"
            echo
          done