name: Download new translations from Crowdin

on:
  schedule:
    - cron: 0 21 * * * #every day at 9pm
  workflow_dispatch:
  push:

jobs:
  download:
    name: Download translations
    runs-on: ubuntu-latest

    strategy:
      matrix:
        branch: [ stable ]

    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ matrix.branch }}

      - name: Download translations
        uses: crowdin/github-action@v2
        with:
          upload_sources: false
          upload_translations: false
          download_translations: true
          create_pull_request: false
          push_translations: false
          export_only_approved: true #irrespective of project config, only accept approved translations here
          crowdin_branch_name: ${{ matrix.branch }}
        env:
          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}

      - name: Post-process placeholders back into PocketMine format
        run: |
          sed -i -r 's/\{([A-Za-z\d]+)\}/\{%\1\}/g' *.ini
          git diff
          git status

      - name: Delete translation files with no translations
        run: |
          for file in *.ini; do
            if grep -q -P '^[A-Za-z0-9_\-\.]+=' $file; then
              echo "Not empty: $file"
            else
              echo "Deleting empty file: $file"
              rm "$file"
            fi
          done

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v7
        with:
          add-paths: '*.ini'
          commit-message: 'New translations from Crowdin'
          branch: crowdin-auto-fetch/${{ matrix.branch }}
          title: 'New translations from Crowdin'
          base: ${{ matrix.branch }}