name: release 

on:
  push:
    tags:
      - "v[0-9]+\\.[0-9]+\\.[0-9]+"
      - "v[0-9]+\\.[0-9]+\\.[0-9]+-*"

jobs:
  create_release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          fetch-tags: true
      - name: version
        id: version
        run: |
          REPOSITORY=$(echo ${{ github.event.repository.name }})
          echo "repository=$REPOSITORY" >> "$GITHUB_OUTPUT"
          VERSION=$(basename ${{ github.ref }})
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
          VERSION_STRING=$(echo $VERSION | sed -e "s#\.#_#g")
          echo "version_string=$VERSION_STRING" >> "$GITHUB_OUTPUT"
      - name: 前のリリースタグを特定
        id: release_info
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          if [[ "$VERSION" == *"-"* ]]; then
            PREVIOUS_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
          else
            PREVIOUS_TAG=$(git tag -l 'v[0-9]*.[0-9]*.[0-9]*' --sort=-v:refname | grep -v '-' | grep -v "^${VERSION}$" | head -1)
          fi
          echo "previous_tag=$PREVIOUS_TAG" >> "$GITHUB_OUTPUT"
          echo "前のタグ: $PREVIOUS_TAG"
      - name: コミット履歴を生成
        id: changelog
        run: |
          PREVIOUS_TAG="${{ steps.release_info.outputs.previous_tag }}"
          VERSION="${{ steps.version.outputs.version }}"
          
          if [ -n "$PREVIOUS_TAG" ]; then
            echo "## 変更内容 (${PREVIOUS_TAG}...${VERSION})" > changelog.md
            echo "" >> changelog.md
            git log --pretty=format:"- %s (%h)" ${PREVIOUS_TAG}..HEAD >> changelog.md
          else
            echo "## 変更内容" > changelog.md
            echo "" >> changelog.md
            git log --pretty=format:"- %s (%h)" >> changelog.md
          fi
          
          DELIMITER="CHANGELOG_$(date +%s%N)"
          echo "changelog<<${DELIMITER}" >> "$GITHUB_OUTPUT"
          cat changelog.md >> "$GITHUB_OUTPUT"
          echo "" >> "$GITHUB_OUTPUT"
          echo "${DELIMITER}" >> "$GITHUB_OUTPUT"
      - name: Zip output
        id: create_zip
        run: |
          ARCHIVE_BASENAME=$(echo ${{steps.version.outputs.repository}}-${{steps.version.outputs.version_string}})
          ARCHIVE_FILENAME=$(echo $ARCHIVE_BASENAME.zip)

          echo "filename=$ARCHIVE_FILENAME" >> "$GITHUB_OUTPUT"

          mkdir $ARCHIVE_BASENAME
          rsync -av ./* $ARCHIVE_BASENAME --exclude $ARCHIVE_BASENAME
          zip -r $ARCHIVE_FILENAME $ARCHIVE_BASENAME -x ".git"
      - name: Create Release
        id: create-release
        uses: softprops/action-gh-release@v2
        with:
          name: Release ${{ steps.version.outputs.version }} 
          tag_name: ${{ steps.version.outputs.version }}
          body: ${{ steps.changelog.outputs.changelog }}
          draft: true
          prerelease: ${{ contains(steps.version.outputs.version, '-') }}
          files: |
            ${{ steps.create_zip.outputs.filename}}