# SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
# SPDX-License-Identifier: MIT

name: Generate changelog on release

on:
  release:
    types: [published]

permissions:
  contents: write

jobs:
  changelog_generate:
    runs-on: ubuntu-latest

    # Only allowed to be run on nextcloud-releases repositories
    if: ${{ github.repository_owner == 'nextcloud-releases' }}

    steps:
      - name: Check actor permission
        uses: skjnldsv/check-actor-permission@69e92a3c4711150929bca9fcf34448c5bf5526e7 # v3.0
        with:
          require: write

      - name: Checkout github_helper
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false
          repository: nextcloud/github_helper
          path: github_helper

      - name: Checkout server
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false
          path: server

      - name: Get previous tag
        id: previous_tag
        shell: bash
        run: |
          ls -la
          git status
          git log --decorate --oneline | egrep '^[0-9a-f]+ \((HEAD, )?tag: ' | sed -r 's/^.+tag: ([^ ]+)[,\)].+$/\1/g' | grep -v 'rc\|beta\|alpha'
          TAGS=$(git log --decorate --oneline | egrep '^[0-9a-f]+ \((HEAD, )?tag: ' | sed -r 's/^.+tag: ([^ ]+)[,\)].+$/\1/g' | grep -v 'rc\|beta\|alpha')
          CURRENT_TAG=$(echo "$TAGS" | head -n 1)
          PREVIOUS_TAG=$(echo "$TAGS" | sed -n '2p')
          echo "CURRENT_TAG=$CURRENT_TAG" >> $GITHUB_ENV
          
      - name: Verify current tag
        run: |
         if [ "${{ github.ref_name }}" != "${{ env.CURRENT_TAG }}" ]; then
           echo "Current tag does not match the release tag. Exiting."
           exit 1
         fi

      - name: Set up php 8.2
        uses: shivammathur/setup-php@cf4cade2721270509d5b1c766ab3549210a39a2a # v2.33.0
        with:
          php-version: 8.2
          coverage: none
          ini-file: development
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Set credentials
        run: |
          # Set helper credentials on credentials.json
          echo '{
            "username": "github-actions",
            "apikey": "${{ secrets.GITHUB_TOKEN }}",
          }' > github_helper/credentials.json

      - name: Generate changelog
        id: changelog
        run: |
          cd changelog
          composer install
          php index.php generate:changelog --no-bots server ${{ env.PREVIOUS_TAG }} ${{ github.ref_name }} > changelog.md
          echo "CHANGELOG=$(cat changelog.md)" >> $GITHUB_ENV

      - name: Set changelog to release
        run: |
         gh release edit ${{ github.ref_name }} --body "${{ env.CHANGELOG }}" --title "${{ github.event.release.name }}"