name: Update changelog

on:
  schedule:
    - cron: "0 0 * * 0"
  workflow_dispatch:

permissions:
  contents: write

jobs:
  update-changelog:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4.1.6
        with:
          fetch-depth: 0
          token: ${{ secrets.PAT }}

      - name: Get last edit time of docs/updates.txt
        run: |
          last_edit_time=$(git log -1 --pretty="format:%cI" docs/updates.txt)
          echo "Last edit time: $last_edit_time"
          echo "LAST_EDIT_TIME=$last_edit_time" >> $GITHUB_ENV

      - name: Run git log
        run: |
          git log --no-merges --perl-regexp --author='^(?!.*(\[bot\]|actions@github\.com)).*$' --grep='^(feat|fix|chore|docs|style|refactor|perf|test|build|ci|revert|update)(\(.*?\))?:' --since="${{ env.LAST_EDIT_TIME }}" --pretty="%s" > log_output.txt

      - name: Check if there are new commits
        run: |
          if [ -s log_output.txt ]; then
            echo "NEW_COMMITS=true" >> $GITHUB_ENV
          else
            echo "No new commits since the last update of docs/updates.txt."
            echo "NEW_COMMITS=false" >> $GITHUB_ENV
          fi

      - name: Run update script
        if: env.NEW_COMMITS == 'true'
        run: |
          .github/scripts/update-changelog.sh log_output.txt

      - name: Commit and push if it's not up to date
        if: env.NEW_COMMITS == 'true'
        env:
          GITHUB_TOKEN: ${{ secrets.PAT }}
        run: |
          git config --global user.email "actions@github.com"
          git config --global user.name "GitHub Actions"
          git diff
          git commit -am "chore(changelog): Update updates.txt" || exit 0
          git push https://x-access-token:${{ secrets.PAT }}@github.com/${{ github.repository }}.git HEAD:master