---
name: localize
permissions: {}

on:
  push:
    branches:
      - master
    paths:
      - '.github/workflows/localize.yml'
      - 'src/**'
      - 'locale/sunshine.po'
  workflow_dispatch:

env:
  FILE: ./locale/sunshine.po
  PYTHON_VERSION: '3.14'

jobs:
  localize:
    name: Update Localization
    permissions:
      contents: read
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2

      - name: Install Python
        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Setup uv
        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b  # v8.1.0
        with:
          enable-cache: true

      - name: Sync Python tools
        run: |
          uv sync --locked --only-group locale \
            --python "${PYTHON_VERSION}" \
            --no-python-downloads \
            --no-install-project

      - name: Set up xgettext
        run: |
          sudo apt-get update -y && \
          sudo apt-get --reinstall install -y \
          gettext

      - name: Update Strings
        run: |
          new_file=true

          # first, try to remove existing file as xgettext does not remove unused translations
          if [ -f "${FILE}" ];
          then
              rm "${FILE}"
              new_file=false
          fi
          echo "NEW_FILE=${new_file}" >> "${GITHUB_ENV}"

          # extract the new strings
          uv run --locked --no-sync python ./scripts/_locale.py --extract

      - name: git diff
        if: env.NEW_FILE == 'false'
        run: |
          # disable the pager
          git config --global pager.diff false

          # print the git diff
          git diff locale/sunshine.po

          # set the variable with minimal output, replacing `\t` with ` `
          OUTPUT=$(git diff --numstat locale/sunshine.po | sed -e "s#\t# #g")
          echo "GIT_DIFF=${OUTPUT}" >> "${GITHUB_ENV}"

      - name: git reset
        # only run if a single line changed (date/time) and file already existed
        if: >-
          env.GIT_DIFF == '1 1 locale/sunshine.po' &&
          env.NEW_FILE == 'false'
        run: |
          git reset --hard

      - name: Get current date
        id: date
        run: echo "date=$(date +'%Y-%m-%d')" >> "${GITHUB_OUTPUT}"

      - name: Create/Update Pull Request
        uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1  # v8.1.1
        with:
          add-paths: |
            locale/*.po
          token: ${{ secrets.GH_BOT_TOKEN }}  # must trigger PR tests
          commit-message: "chore(l10n): new babel updates"
          branch: localize/update
          delete-branch: true
          base: master
          title: "chore(l10n): new babel updates"
          body: |
            Update report
            - Updated ${{ steps.date.outputs.date }}
            - Auto-generated by [create-pull-request][1]

            [1]: https://github.com/peter-evans/create-pull-request
          labels: |
            babel
            l10n