name: Release CI

on:
  release:
    types:
      - published
  push:
    tags:
      - v*

permissions:
  contents: write

jobs:
  build-and-upload-mod:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Resolve tag
        id: tag
        shell: bash
        run: |
          if [ -n "${{ github.event.release.tag_name }}" ]; then
            echo "value=${{ github.event.release.tag_name }}" >> "$GITHUB_OUTPUT"
          else
            echo "value=${GITHUB_REF_NAME}" >> "$GITHUB_OUTPUT"
          fi

      - name: Check release version (>= 1.21.11)
        id: version_check
        shell: bash
        run: |
          TAG="${{ steps.tag.outputs.value }}"
          VERSION="${TAG#v}"
          MIN_VERSION="1.21.11"

          if [ "$(printf '%s\n%s\n' "$MIN_VERSION" "$VERSION" | sort -V | head -n1)" = "$MIN_VERSION" ]; then
            echo "should_build=true" >> "$GITHUB_OUTPUT"
          else
            echo "should_build=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Set up JDK 21
        if: steps.version_check.outputs.should_build == 'true'
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: "21"
          cache: gradle

      - name: Grant execute permission for Gradle
        if: steps.version_check.outputs.should_build == 'true'
        run: chmod +x ./gradlew

      - name: Build mod
        if: steps.version_check.outputs.should_build == 'true'
        run: ./gradlew clean build

      - name: Upload jars to GitHub release assets
        if: steps.version_check.outputs.should_build == 'true' && github.server_url == 'https://github.com'
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.tag.outputs.value }}
          files: |
            build/libs/*.jar

      - name: Upload jars to Gitea release assets
        if: steps.version_check.outputs.should_build == 'true' && github.server_url != 'https://github.com'
        shell: bash
        env:
          API: ${{ github.api_url }}
          REPO: ${{ github.repository }}
          TAG: ${{ steps.tag.outputs.value }}
          TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          set -euo pipefail

          release_json="$(curl -fsS -H "Authorization: token $TOKEN" "$API/repos/$REPO/releases/tags/$TAG" || true)"

          if [ -z "$release_json" ]; then
            release_json="$(curl -fsS -X POST \
              -H "Authorization: token $TOKEN" \
              -H "Content-Type: application/json" \
              -d "{\"tag_name\":\"$TAG\",\"name\":\"$TAG\",\"draft\":false,\"prerelease\":false}" \
              "$API/repos/$REPO/releases")"
          fi

          release_id="$(python -c 'import sys,json; print(json.load(sys.stdin)["id"])' <<< "$release_json")"

          for file in build/libs/*.jar; do
            [ -f "$file" ] || continue
            name="$(basename "$file")"
            curl -fsS -X POST \
              -H "Authorization: token $TOKEN" \
              -H "Content-Type: application/octet-stream" \
              --data-binary @"$file" \
              "$API/repos/$REPO/releases/$release_id/assets?name=$name"
          done