name: Create GitHub Release

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

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Prepare release notes
        id: notes
        shell: bash
        run: |
          VERSION_REF="${GITHUB_REF##*/}"  # e.g. v1.2.3
          VERSION_NO_V="${VERSION_REF#v}"
          TEMPLATE="RELEASE_NOTES_TEMPLATE.md"
          if [ -f "$TEMPLATE" ]; then
            sed "s/\${VERSION}/${VERSION_REF}/g" "$TEMPLATE" > RELEASE_NOTES.md
          else
            echo "# MTG Python Deckbuilder ${VERSION_REF}" > RELEASE_NOTES.md
            echo >> RELEASE_NOTES.md
            echo "Automated release." >> RELEASE_NOTES.md
          fi
          echo "version=$VERSION_REF" >> $GITHUB_OUTPUT
          echo "notes_file=RELEASE_NOTES.md" >> $GITHUB_OUTPUT

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.notes.outputs.version }}
          name: ${{ steps.notes.outputs.version }}
          body_path: ${{ steps.notes.outputs.notes_file }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}