name: Auto translate i18n (po/json)

on:
    workflow_dispatch:
        inputs:
            mode:
                description: 'Run mode'
                required: true
                default: 'full'
                type: choice
                options:
                    - full
            provider:
                description: 'Translation provider'
                required: true
                default: 'claude'
                type: choice
                options:
                    - openai
                    - claude

    pull_request:
        branches:
            - 'dev'
        paths:
            - 'apps/i18n/**'
        types: [opened, synchronize, reopened]

permissions:
    contents: write
    pull-requests: write

concurrency:
    group: i18n-translate-${{ github.workflow }}-${{ github.ref }}
    cancel-in-progress: true

jobs:
    translate:
        runs-on: ubuntu-latest
        steps:
            - name: Checkout (PR branch)
              if: ${{ github.event_name == 'pull_request' }}
              uses: actions/checkout@v4
              with:
                  ref: ${{ github.event.pull_request.head.ref }}
                  repository: ${{ github.event.pull_request.head.repo.full_name }}
                  fetch-depth: 0

            - name: Checkout (manual)
              if: ${{ github.event_name == 'workflow_dispatch' }}
              uses: actions/checkout@v4
              with:
                  fetch-depth: 0

            - name: Set up Python
              uses: actions/setup-python@v5
              with:
                  python-version: '3.11'

            - name: Install translator dependencies
              run: |
                  python -m pip install --upgrade pip
                  python -m pip install "openai>=1.29.0" "polib>=1.2.0" "tqdm>=4.66.4" "anthropic>=0.40.0"

            - name: Auto translate (PR)
              if: ${{ github.event_name == 'pull_request' }}
              env:
                  I18N_PROVIDER: ${{ vars.I18N_PROVIDER || 'claude' }}
                  OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY || secrets.GPT_API_TOKEN }}
                  OPENAI_BASE_URL: ${{ secrets.OPENAI_BASE_URL }}
                  OPENAI_MODEL: ${{ secrets.OPENAI_MODEL }}
                  ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
                  ANTHROPIC_MODEL: ${{ secrets.ANTHROPIC_MODEL }}
              run: |
                  python apps/i18n/ci_translate.py \
                    --mode pr \
                    --base "${{ github.event.pull_request.base.sha }}" \
                    --head "${{ github.event.pull_request.head.sha }}" \
                    --overwrite

            - name: Auto translate (manual full)
              if: ${{ github.event_name == 'workflow_dispatch' }}
              env:
                  I18N_PROVIDER: ${{ github.event.inputs.provider }}
                  OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY || secrets.GPT_API_TOKEN }}
                  OPENAI_BASE_URL: ${{ secrets.OPENAI_BASE_URL }}
                  OPENAI_MODEL: ${{ secrets.OPENAI_MODEL }}
                  ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
                  ANTHROPIC_MODEL: ${{ secrets.ANTHROPIC_MODEL }}
              run: |
                  python apps/i18n/ci_translate.py --mode full

            - name: Show changes
              run: |
                  git status --porcelain
                  git diff --stat

            - name: Create patch artifact (fork PR)
              if: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork == true }}
              run: |
                  git diff > i18n-translations.patch

            - name: Upload patch artifact (fork PR)
              if: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork == true }}
              uses: actions/upload-artifact@v4
              with:
                  name: i18n-translations
                  path: i18n-translations.patch

            - name: Commit & push changes (same-repo PR)
              if: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork == false }}
              run: |
                  if [ -z "$(git status --porcelain)" ]; then
                    echo "No changes to commit."
                    exit 0
                  fi
                  git config user.name "github-actions[bot]"
                  git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
                  git add apps/i18n
                  git commit -m "chore(i18n): auto-translate updated strings"
                  git push

            - name: Create pull request (manual full run)
              if: ${{ github.event_name == 'workflow_dispatch' }}
              uses: peter-evans/create-pull-request@v6
              with:
                  commit-message: 'chore(i18n): auto-translate all strings'
                  title: 'chore(i18n): auto-translate all strings'
                  body: |
                      Auto-generated i18n translations.

                      - Triggered by: ${{ github.actor }}
                      - Provider: ${{ github.event.inputs.provider }}
                  branch: pr/dev/i18n-auto-translate
                  base: dev
                  add-paths: |
                      apps/i18n/**
                  labels: |
                      i18n
                      automated-pr