article-summarizer-jp/dist/markdown.js

CLI tool for summarizing web articles in Japanese using Anthropic Claude API. Fetches content from URLs and generates both 3-line summaries and full translations in polite Japanese.

import { writeFile } from 'fs/promises';
import { join } from 'path';
import { shortenTitle } from './summarizer.js';
export async function saveToMarkdown(translatedTitle, url, summary, details, tags, imageUrl, datePrefix, simplify) {
    // Format current date
    const now = new Date();
    const dateStr = now.toISOString().split('T')[0]; // YYYY-MM-DD format
    // Helper function to calculate byte length in UTF-8
    const getByteLength = (str) => {
        return Buffer.byteLength(str, 'utf8');
    };
    // Clean translated title for filename (replace invalid characters with underscore)
    let cleanTitle = translatedTitle
        .replace(/[<>:"/\\|?*]/g, '_') // Replace invalid filename characters with underscore
        .replace(/\s+/g, ' ') // Normalize whitespace
        .trim();
    // Create initial filename parts
    const prefix = datePrefix ? `📰 ${dateStr}_` : `📰 `;
    const suffix = '.md';
    // Maximum filename byte length (filesystem limit is typically 255 bytes)
    // We use 200 bytes as a safe limit to account for various filesystems
    const MAX_FILENAME_BYTES = 200;
    // Calculate available bytes for the title
    const fixedPartBytes = getByteLength(prefix) + getByteLength(suffix);
    const maxTitleBytes = MAX_FILENAME_BYTES - fixedPartBytes;
    // Check if we need to shorten the title
    if (getByteLength(cleanTitle) > maxTitleBytes) {
        console.log('    ⚠️  ファイル名が長すぎます。LLMで短縮中...');
        // Calculate rough character limit (assuming average 3 bytes per Japanese character)
        const estimatedMaxChars = Math.floor(maxTitleBytes / 3);
        // Use LLM to shorten the title intelligently
        cleanTitle = await shortenTitle(cleanTitle, estimatedMaxChars);
        // After LLM shortening, if still too long, truncate character by character
        while (getByteLength(cleanTitle) > maxTitleBytes && cleanTitle.length > 0) {
            cleanTitle = cleanTitle.slice(0, -1);
        }
        // Trim any trailing whitespace after truncation
        cleanTitle = cleanTitle.trim();
        console.log(`    ✅ タイトルを短縮しました: "${cleanTitle}"`);
    }
    // Create filename using translated title
    const filename = `${prefix}${cleanTitle}${suffix}`;
    const filepath = join(process.cwd(), filename);
    // Format tags
    const tagString = tags.length > 0 ? `#${tags.join(' #')}` : '';
    // Create markdown content with thumbnail before tags
    const imageSection = imageUrl
        ? `![thumbnail](${imageUrl})

`
        : '';
    // Build markdown content based on simplify mode
    const markdownContent = simplify
        ? `[${translatedTitle}](${url})
scrap at [[${dateStr}]]

${tagString}

## 3行まとめ
${summary}

${imageSection}#web_scrap
`
        : `[${translatedTitle}](${url})
scrap at [[${dateStr}]]

${tagString}

## 3行まとめ
${summary}

${imageSection}## 詳細
${details}

#web_scrap
`;
    // Write to file
    await writeFile(filepath, markdownContent, 'utf-8');
    return filename;
}
//# sourceMappingURL=markdown.js.map