name: Update locales

on:
  schedule:
    - cron: "0 0 * * 5" # Every Friday at midnight UTC
  workflow_dispatch: # Allow manual triggering

permissions:
  contents: read

jobs:
  update-locales:
    name: Update locales
    runs-on: ubuntu-latest
    environment: sync_l10n

    steps:
      - name: Generate app token
        id: app-token
        uses: actions/create-github-app-token@1b10c78c7865c340bc4f6099eb2f838309f1e8c3 # v3.1.1
        with:
          client-id: ${{ secrets.CLIENT_ID }}
          private-key: ${{ secrets.APP_PRIVATE_KEY }}

      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          token: ${{ steps.app-token.outputs.token }}
          persist-credentials: false

      - name: Use Node.js LTS
        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          node-version: lts/*
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Import translations from mozilla-central
        run: npx gulp importl10n

      - name: Create Pull Request
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token }}
        run: |
          if [ -z "$(git status --porcelain l10n/)" ]; then
            echo "No locale changes to commit."
            exit 0
          fi
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git remote set-url origin "https://x-access-token:${GH_TOKEN}@github.com/${{ github.repository }}"
          git switch -C update-locales
          git add l10n/
          git commit -m "l10n: Update locale files"
          git push --force origin update-locales
          gh pr create \
            --title "l10n: Update locale files" \
            --body "Automated weekly update of locale files from mozilla-central." \
            --label l10n || true