name: Release

on:
  push:
    tags:
      - "v*"

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Generate changelog
        id: changelog
        run: |
          PREV_TAG=$(git tag --sort=-version:refname | head -2 | tail -1)
          if [ -z "$PREV_TAG" ]; then
            CHANGELOG=$(git log --pretty=format:"- %s (%h)" HEAD)
          else
            CHANGELOG=$(git log --pretty=format:"- %s (%h)" ${PREV_TAG}..HEAD)
          fi
          echo "changelog<<EOF" >> $GITHUB_OUTPUT
          echo "$CHANGELOG" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          body: |
            ## Changes

            ${{ steps.changelog.outputs.changelog }}

            ## Docker

            ```bash
            docker compose up
            ```
          draft: false
          prerelease: false