header.yml

name: Kotlin Header
on: workflow_dispatch

jobs:
  kotlin-header:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v6

      - name: Add or Update Kotlin headers
        run: |
          python3 <<'PY'
          from pathlib import Path

          SOLSTICE_HEADER = """/*
           * Solstice (2026)
           * © Stark — github.com/urstark
           * 
           * Based on ArchiveTune (2026)
           * © Rukamori — github.com/rukamori
           * 
           * GPL-3.0 License | Contributors: see git history
           * Do not remove or alter this notice. - Per GPL-3.0 Section 4 & Section 5
           */
          """

          SOLSTICE_ONLY_HEADER = """/*
           * Solstice (2026)
           * © Stark — github.com/urstark
           * 
           * GPL-3.0 License | Contributors: see git history
           * Do not remove or alter this notice. - Per GPL-3.0 Section 4 & Section 5
           */
          """

          total_updated = 0

          for path in Path(".").rglob("*.kt"):
              if ".git" in path.parts or "build" in path.parts:
                  continue

              try:
                  content = path.read_text(encoding="utf-8")
              except UnicodeDecodeError:
                  continue

              has_rukamori = False
              has_stark = False
              text_without_header = content
              
              while text_without_header.startswith("/*"):
                  end = text_without_header.find("*/")
                  if end == -1:
                      break
                  header = text_without_header[:end + 2]
                  if "GPL-3.0 License" in header:
                      if "© Rukamori" in header:
                          has_rukamori = True
                      if "© Stark" in header:
                          has_stark = True
                      text_without_header = text_without_header[end + 2:].lstrip("\r\n")
                  else:
                      break
                      
              # Now prepend the new header
              new_content = content
              if has_rukamori or has_stark:
                  if has_rukamori:
                      new_content = SOLSTICE_HEADER + text_without_header
                  else:
                      new_content = SOLSTICE_ONLY_HEADER + text_without_header
              else:
                  new_content = SOLSTICE_ONLY_HEADER + text_without_header

              if content != new_content:
                  path.write_text(new_content, encoding="utf-8")
                  total_updated += 1
                  print(f"{path}: updated header")

          print(f"Updated {total_updated} Kotlin header(s).")
          PY

      - uses: stefanzweifel/git-auto-commit-action@v7
        with:
          commit_message: Update Kotlin Headers