grammar-check.yml

name: "Grammar & Punctuation Check (RU)"

on:
  pull_request:
    paths:
      - '00_Правила_оформления/**/*.md'
      - '01_Вселенная/**/*.md'
      - '02_Объекты/**/*.md'
      - '03_Государства/**/*.md'
      - '04_Корпорации/**/*.md'
      - '05_Организации/**/*.md'
      - '06_Расы/**/*.md'
      - '07_Существа/**/*.md'
      - '08_Технологии/**/*.md'
      - '09_Вооружение/**/*.md'
      - '10_Явления/**/*.md'
      - '11_Товары/**/*.md'
      - '12_Другое/**/*.md'
      - '13_Истории/**/*.md'
      - '14_Повседневность/**/*.md'
      - 'README.md'
      - 'LICENSE.md'

jobs:
  grammar-check:
    runs-on: ubuntu-latest
    steps:
      # 1. Клонируем репозиторий, но с полным fetch
      - name: Check out the code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      # 2. Устанавливаем Java
      - name: Set up Java
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: '17'

      # 3. Устанавливаем Pandoc
      - name: Install Pandoc
        run: |
          sudo apt-get update
          sudo apt-get install -y pandoc

      # 4. Скачиваем LanguageTool (v6.5)
      - name: Download LanguageTool
        run: |
          wget https://languagetool.org/download/LanguageTool-6.5.zip -O lt.zip
          unzip lt.zip -d lt

      # 5. Отключаем экранирование путей в Git (важно для кириллических файлов!)
      - name: Disable Git path quoting
        run: git config core.quotepath off

      # 6. Собственно проверка .md-файлов
      - name: Run grammar check (RU) with Pandoc
        id: run_languagetool
        run: |
          # SHAs для diff
          BASE_SHA=${{ github.event.pull_request.base.sha }}
          HEAD_SHA=${{ github.event.pull_request.head.sha }}

          # Получаем список изменённых .md-файлов
          CHANGED_FILES=$(git diff --name-only --diff-filter=ACMRT $BASE_SHA $HEAD_SHA | grep '\.md$' || true)

          if [ -z "$CHANGED_FILES" ]; then
            echo "No changed .md files to check."
            echo "" > grammar_output.txt
            exit 0
          fi

          echo "Changed markdown files:"
          echo "$CHANGED_FILES"

          # Очищаем/создаём общий файл вывода
          rm -f grammar_output.txt
          touch grammar_output.txt

          for FILE in $CHANGED_FILES; do
            echo "--------------------------------" >> grammar_output.txt
            echo "Проверка файла: $FILE" >> grammar_output.txt
            echo "" >> grammar_output.txt

            # 1) MD -> plain text (Pandoc)
            pandoc "$FILE" -t plain -o /tmp/conversion.txt

            # 2) Запуск LanguageTool CLI
            java -jar lt/LanguageTool-6.5/languagetool-commandline.jar \
              --language ru \
              --mothertongue ru \
              /tmp/conversion.txt \
              >> grammar_output.txt \
              || true

            echo "" >> grammar_output.txt
          done

      # 7. Публикуем результаты в PR
      - name: Create PR comment with suggestions
        if: always()
        uses: actions/github-script@v6
        with:
          script: |
            const fs = require('fs');
            const path = 'grammar_output.txt';

            if (!fs.existsSync(path)) {
              core.setOutput('No grammar output file found.');
              return;
            }
            const suggestions = fs.readFileSync(path, 'utf8');

            if (!suggestions.trim()) {
              core.setOutput('No grammar issues found.');
              return;
            }

            const files = suggestions.split('--------------------------------\n');
            const comments = [];
            
            for (const fileData of files) {
                if (!fileData.trim()) continue;

                const lines = fileData.trim().split('\n');
                const fileNameMatch = lines[0].match(/Проверка файла: (.*)/);
                
                if (!fileNameMatch) continue;
                const fileName = fileNameMatch[1];

                const content = lines.slice(2).join('\n');

               if (content.trim()) {
                  const commentBody = `<details><summary>Грамматические замечания для <code>${fileName}</code></summary>\n\n\`\`\`\n${content.trim()}\n\`\`\`\n</details>`;
                   comments.push(commentBody);
                }
            }

             // Ограничение на количество комментариев (50)
            const maxComments = 50;
            let currentComment = "";
            let commentCounter = 0;

            for (const comment of comments) {
              if (commentCounter < maxComments){
                  currentComment += comment + "\n\n";
              }
              else {
                const body = `## LanguageTool (RU) — Проверка грамматики\n\n${currentComment}`
                  await github.rest.issues.createComment({
                      issue_number: context.issue.number,
                      owner: context.repo.owner,
                      repo: context.repo.repo,
                      body: body
                    });
                  currentComment = comment + "\n\n"
                  commentCounter = 0;
                }
                commentCounter++;
            }
              
            if (currentComment) {
               const body = `## LanguageTool (RU) — Проверка грамматики\n\n${currentComment}`
                  await github.rest.issues.createComment({
                      issue_number: context.issue.number,
                      owner: context.repo.owner,
                      repo: context.repo.repo,
                      body: body
                    });
            }