---
name: Release Daily State

on:
  workflow_dispatch:
  schedule:
    - cron: '0 21 * * *' # 00:00 at Europe/Helsinki

permissions: read-all

jobs:
  new-daily-release:
    runs-on: ubuntu-latest

    permissions:
      contents: write

    outputs:
      created: ${{ steps.daily-version.outputs.created }}
      version: ${{ steps.daily-version.outputs.version }}

    steps:
      - uses: actions/checkout@71cf2267d89c5cb81562390fa70a37fa40b1305e # v6-beta
        with:
          fetch-depth: 0 # Fetch all history and tags for comparison

      - name: Create daily release
        id: daily-version
        run: |
          set -eu

          VERSION="v$(date '+%Y.%m.%d')"
          printf '%s\n' "version=$VERSION" >> "$GITHUB_OUTPUT"

          # Check if release already exists
          if gh release view "$VERSION" >/dev/null 2>&1; then
            printf '%s\n' "created=false" >> "$GITHUB_OUTPUT"
            printf '%s\n' "Release $VERSION already exists - skipping"
            exit 0
          fi

          # Get the most recent tag
          PREVIOUS_TAG=$(git tag --sort=-version:refname | head -1)

          # Check if there are any changes since the previous tag
          if [ -n "$PREVIOUS_TAG" ]; then
            CHANGES=$(git rev-list "$PREVIOUS_TAG"..HEAD --count)
            if [ "$CHANGES" -eq 0 ]; then
              printf '%s\n' "created=false" >> "$GITHUB_OUTPUT"
              printf '%s\n' "No changes since $PREVIOUS_TAG - skipping release"
              exit 0
            fi
            printf '%s\n' "Found $CHANGES commit(s) since $PREVIOUS_TAG"
          fi

          # Create release with auto-generated changelog (also creates tag)
          gh release create "$VERSION" \
            --title "Release $VERSION" \
            --generate-notes \
            --target main

          printf '%s\n' "created=true" >> "$GITHUB_OUTPUT"
          printf '%s\n' "Created release $VERSION"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}