name: Release Partner Core

on:
  workflow_dispatch:
    inputs:
      tag:
        description: "Release tag, for example rel-v0.5.0"
        required: true
        type: string
  push:
    tags:
      - "rel-v*"

permissions:
  contents: write

jobs:
  release-core:
    runs-on: ubuntu-latest

    steps:
      - name: Resolve release metadata
        id: release
        shell: bash
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            TAG="${{ inputs.tag }}"
          else
            TAG="${GITHUB_REF_NAME}"
          fi

          VERSION="${TAG#rel-v}"
          ASSET_NAME="partner-core-${VERSION}.jar"
          ASSET_URL="https://github.com/slhaf/Partner/releases/download/${TAG}/${ASSET_NAME}"

          echo "tag=${TAG}" >> "$GITHUB_OUTPUT"
          echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
          echo "asset_name=${ASSET_NAME}" >> "$GITHUB_OUTPUT"
          echo "asset_url=${ASSET_URL}" >> "$GITHUB_OUTPUT"

          echo "Release tag: ${TAG}"
          echo "Release version: ${VERSION}"
          echo "Release asset: ${ASSET_NAME}"

      - name: Checkout release source
        uses: actions/checkout@v4
        with:
          ref: ${{ steps.release.outputs.tag }}

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

      - name: Build Partner Core
        run: |
          mvn -B -DskipTests=true -pl Partner-Core -am package

      - name: Prepare release artifact
        shell: bash
        run: |
          mkdir -p dist

          SOURCE_JAR="Partner-Core/target/partner-core-${{ steps.release.outputs.version }}.jar"

          if [ ! -f "$SOURCE_JAR" ]; then
            echo "Expected artifact not found: $SOURCE_JAR"
            echo "Available Partner-Core target files:"
            find Partner-Core/target -maxdepth 1 -type f -name "*.jar" -print
            exit 1
          fi

          cp "$SOURCE_JAR" "dist/${{ steps.release.outputs.asset_name }}"
          ls -lh dist

      - name: Create GitHub Release
        shell: bash
        run: |
          if gh release view "${{ steps.release.outputs.tag }}" >/dev/null 2>&1; then
            echo "Release ${{ steps.release.outputs.tag }} already exists."
            exit 1
          fi

          gh release create "${{ steps.release.outputs.tag }}" \
            "dist/${{ steps.release.outputs.asset_name }}" \
            --title "${{ steps.release.outputs.tag }}" \
            --notes "Partner Core ${{ steps.release.outputs.version }}"
        env:
          GH_TOKEN: ${{ github.token }}

      - name: Checkout master for registry update
        uses: actions/checkout@v4
        with:
          ref: master
          path: registry-worktree

      - name: Update latestRelease
        working-directory: registry-worktree
        run: |
          python3 - <<'PY'
          import json
          from pathlib import Path

          version = "${{ steps.release.outputs.version }}"
          url = "${{ steps.release.outputs.asset_url }}"

          index_path = Path("registry/index.json")
          index = json.loads(index_path.read_text(encoding="utf-8"))

          index["partner"]["latestRelease"] = {
              "url": url,
              "version": version
          }

          index_path.write_text(
              json.dumps(index, ensure_ascii=False, indent=2) + "\n",
              encoding="utf-8"
          )
          PY

      - name: Commit registry update
        working-directory: registry-worktree
        run: |
          if git diff --quiet registry/index.json; then
            echo "No latestRelease changes."
            exit 0
          fi

          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

          git add registry/index.json
          git commit -m "chore(registry): update latest core release to ${{ steps.release.outputs.tag }}"
          git push origin HEAD:master