# Documentation auto-translation (orchestrated in tools/ci/doc_auto_translate.py).
# Trigger: MR scoped labels — see .gitlab/ci/README_auto_translate.md

# Skip bot commits (titles like "auto translation update files") to prevent re-trigger loops.
# Primary loop prevention: translate jobs remove trigger labels via --guard-labels before committing.
.if-skip-auto-translate-bot-commit: &if-skip-auto-translate-bot-commit
  if: '$CI_COMMIT_TITLE =~ /^auto translation /i'
  when: never

.if-label-auto-translate-full: &if-label-auto-translate-full
  if: '$CI_MERGE_REQUEST_LABELS =~ /(?:^|[,\n\r])auto-translate::full(?:[,\n\r]|$)/i'

.if-label-auto-translate-incremental: &if-label-auto-translate-incremental
  if: '$CI_MERGE_REQUEST_LABELS =~ /(?:^|[,\n\r])auto-translate::incremental(?:[,\n\r]|$)/i'

.if-any-auto-translate-label: &if-any-auto-translate-label
  if: '$CI_MERGE_REQUEST_LABELS =~ /auto-translate::(full|incremental)/i'

.auto_translate_setup: &auto_translate_setup
  - git clone $AUTO_TRANSLATE_REPO
  - pip3 install -r ./auto-translate/requirements.txt pyyaml

.if-merge-request-pipeline: &if-merge-request-pipeline
  if: '$CI_MERGE_REQUEST_IID'

# Fail if the MR branch has more than one auto-translation bot commit.
# Runs on every MR pipeline (including bot commits); does not require auto-translate labels.
check_auto_translate_commit_history:
  stage: pre_check
  image: python:3.11
  tags: [fast_run, shiny]
  rules:
    - <<: *if-merge-request-pipeline
      when: on_success
    - when: never
  variables:
    GIT_DEPTH: 0
  before_script: []
  cache: []
  script:
    - |
      BASE="${CI_MERGE_REQUEST_DIFF_BASE_SHA:-}"
      if [ -z "$BASE" ]; then
        echo "No MR diff base SHA; skipping commit history check."
        exit 0
      fi
      COUNT=$(git log --format=%s "${BASE}..HEAD" | grep -ciE '^auto translation ' || true)
      if [ "$COUNT" -gt 1 ]; then
        echo "ERROR: Found ${COUNT} auto-translation bot commits on this MR branch."
        echo "Please squash or rebase to at most one bot commit before re-running translation."
        git log --oneline "${BASE}..HEAD" | grep -i 'auto translation' || true
        exit 1
      fi
      echo "Auto-translate commit history OK (${COUNT} bot commit(s))."

# Automatic when any auto-translate label is present — validates incremental docs only.
check_line_num:
  stage: auto_translate
  image: python:3.11
  tags: [fast_run, shiny]
  rules:
    - <<: *if-skip-auto-translate-bot-commit
    - <<: *if-any-auto-translate-label
      when: on_success
    - when: never
  needs:
    - check_auto_translate_commit_history
  variables:
    GIT_DEPTH: 0
  before_script: []
  cache: []
  script:
    - *auto_translate_setup
    - python3 tools/ci/doc_auto_translate.py check-line-num --repo-root "$CI_PROJECT_DIR"

# Label: auto-translate::full — line check + incremental + entire (include-only zh_CN) per classification.
translate:
  stage: auto_translate
  image: python:3.11
  tags: [fast_run, shiny]
  rules:
    - <<: *if-skip-auto-translate-bot-commit
    - <<: *if-label-auto-translate-full
      when: on_success
    - when: never
  needs:
    - check_auto_translate_commit_history
    - check_line_num
  variables:
    GIT_DEPTH: 0
  before_script: []
  cache: []
  script:
    - *auto_translate_setup
    - git checkout $CI_COMMIT_REF_NAME
    - |
      python3 tools/ci/doc_auto_translate.py run --repo-root "$CI_PROJECT_DIR" \
        --mode all --guard-labels auto-translate::full

# Label: auto-translate::incremental — line check + incremental translate only (no entire/full bucket).
translate_incremental:
  stage: auto_translate
  image: python:3.11
  tags: [fast_run, shiny]
  rules:
    - <<: *if-skip-auto-translate-bot-commit
    - <<: *if-label-auto-translate-incremental
      when: on_success
    - when: never
  needs:
    - check_auto_translate_commit_history
    - check_line_num
  variables:
    GIT_DEPTH: 0
  before_script: []
  cache: []
  script:
    - *auto_translate_setup
    - git checkout $CI_COMMIT_REF_NAME
    - |
      python3 tools/ci/doc_auto_translate.py run --repo-root "$CI_PROJECT_DIR" \
        --mode incremental-only --guard-labels auto-translate::incremental