# This workflow manages internationalization (i18n) with Crowdin
# Triggers:
#   - Hourly schedule to sync translations
#   - Push with changes to translation files or config
# Process:
#   1. Extracts translatable strings from source code
#   2. Uploads source strings to Crowdin
#   3. Downloads translated strings from Crowdin
#   4. Creates PR with updated translations
# Note: Uses concurrency control to prevent overlapping runs

name: Translation job

on:
  schedule:
    # Run the workflow every hour
    - cron: '0 * * * *'
  push:
    branches:
      - develop
    paths:
      - 'web/i18n/en/translation.json'
      - 'web/**/*.tsx'
      - 'web/**/*.js'
      - 'crowdin.yml'
      - '.github/workflows/translations.yml'
      - 'web/i18next-parser.config.mjs'

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  generate-translations:
    defaults:
      run:
        working-directory: ./web

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config --global user.name "Owncast"
          git config --global user.email "owncast@owncast.online"

      - name: Install dependencies
        run: npm install

      - name: Generate translation files
        run: npm run translate

      - name: Upload sources to Crowdin
        uses: crowdin/github-action@v2
        with:
          upload_sources: true
          upload_translations: false
          download_translations: false
          config: crowdin.yml
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}

      - name: Download translations from Crowdin
        uses: crowdin/github-action@v2
        with:
          upload_sources: false
          upload_translations: false
          download_translations: true
          skip_untranslated_strings: true
          export_only_approved: false
          push_translations: false
          commit_message: 'chore(i18n): update translations from Crowdin'
          localization_branch_name: crowdin-translations
          create_pull_request: false
          config: crowdin.yml
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}

      - name: Check for translation changes
        id: changes
        run: |
          cd ..
          git add web/i18n/
          if git diff --cached --quiet; then
            echo "has_changes=false" >> $GITHUB_OUTPUT
            echo "No translation changes detected"
          else
            echo "has_changes=true" >> $GITHUB_OUTPUT
            echo "Translation changes detected"
          fi

      - name: Create Pull Request
        if: steps.changes.outputs.has_changes == 'true'
        id: create_pr
        uses: peter-evans/create-pull-request@v8
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          branch: crowdin-translations
          base: develop
          title: 'chore(i18n): update translations from Crowdin'
          body: |
            This PR contains updated translations downloaded from Crowdin.

            **Changes include:**
            - Updated translation files in `web/i18n/`
            - Translations synchronized from Crowdin project

            Please review the changes and merge if they look correct.

            ---
            This PR was created automatically by the translation workflow.
          commit-message: 'chore(i18n): update translations from Crowdin'
          author: 'Owncast <owncast@owncast.online>'
          committer: 'Owncast <owncast@owncast.online>'
          add-paths: |
            web/i18n/**
          delete-branch: true

      - name: Log PR creation result
        if: steps.create_pr.outputs.pull-request-number
        run: |
          echo "Created PR #${{ steps.create_pr.outputs.pull-request-number }}"
          echo "PR URL: ${{ steps.create_pr.outputs.pull-request-url }}"

      - name: No changes detected
        if: steps.changes.outputs.has_changes == 'false'
        run: echo "No translation changes to commit"