name: Release

on:
  push:
    branches: [main]

permissions:
  contents: write

jobs:
  prepare:
    if: ${{ !startsWith(github.event.head_commit.message, 'chore(release): prepare ') }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Provide lowercase changelog compatibility
        run: |
          set -euo pipefail
          if [[ -f CHANGELOG.md && ! -e changelog.md ]]; then
            ln -s CHANGELOG.md changelog.md
          fi

      - name: Prepare release
        run: bash ./script/prepare-release.sh

      - name: Summary
        if: ${{ always() }}
        run: |
          set -euo pipefail
          if git rev-parse -q --verify "refs/tags/$(sed -n 's/^const String = "\([^"]*\)"$/v\1/p' internal/homesick/version/version.go)" >/dev/null; then
            echo "Prepared and pushed release tag $(sed -n 's/^const String = "\([^"]*\)"$/v\1/p' internal/homesick/version/version.go)." >> "$GITHUB_STEP_SUMMARY"
          else
            echo "No release prepared in this run." >> "$GITHUB_STEP_SUMMARY"
          fi