name: Build and Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:

permissions:
  contents: write

jobs:
  release:
    runs-on: ubuntu-latest

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

      - name: Create release archive
        run: |
          mkdir -p ../noctalia-release
          rsync -av --exclude='.git' --exclude='.github' ./ ../noctalia-release/
          cd ..
          tar -czf noctalia-${{ github.ref_name }}.tar.gz noctalia-release/
          cp noctalia-${{ github.ref_name }}.tar.gz noctalia-latest.tar.gz
          mv *.tar.gz ${{ github.workspace }}/

      - name: Generate release notes
        id: release_notes
        run: |
          PREV_TAG=$(git describe --tags --abbrev=0 @^ 2>/dev/null || echo "")
          RANGE="${PREV_TAG}..HEAD"
          
          PR_NOTES=""
          COMMIT_NOTES=""
          
          git log $RANGE --pretty=format:"%H|%s|%an" | while IFS='|' read -r SHA MSG AUTHOR; do
            SHORT_MSG=$(echo "$MSG" | cut -c1-80)
            if [[ "$MSG" =~ Merge\ pull\ request\ \#([0-9]+) ]]; then
              PR_NUM="${BASH_REMATCH[1]}"
              PR_TITLE=$(echo "$SHORT_MSG" | sed -E "s/Merge pull request #$PR_NUM //")
              PR_NOTES+="- [PR #$PR_NUM](https://github.com/${GITHUB_REPOSITORY}/pull/$PR_NUM): $PR_TITLE by $AUTHOR\n"
            else
              COMMIT_NOTES+="- [$SHA](https://github.com/${GITHUB_REPOSITORY}/commit/$SHA): $SHORT_MSG by $AUTHOR\n"
            fi
          done
          
          NOTES="### Merged PRs\n$PR_NOTES\n### Direct commits\n$COMMIT_NOTES"
          
          echo "RELEASE_NOTES<<EOF" >> $GITHUB_ENV
          echo -e "$NOTES" >> $GITHUB_ENV
          echo "EOF" >> $GITHUB_ENV

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v1
        with:
          files: |
            noctalia-${{ github.ref_name }}.tar.gz
            noctalia-latest.tar.gz
          body: ${{ env.RELEASE_NOTES }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}