/**
 * 基于Bot跟Machete的TaJian对接
 * 按filestie.io标准把Bot爬虫返回的数据格式化保存为.url及其说明文件
 */
import common from './common.mjs';
import fs from 'node:fs';
import { writeFile } from 'node:fs/promises';
import path from 'node:path';

class TaJian {

  constructor(data_save_dir) {
    this.save_dir = data_save_dir;
  }

  /*
   * Example:
    [InternetShortcut]
    URL=https://microsoft.com/
  */
  async saveUrlShortcut(filename, data) {
    //console.log('TaJian try to save shortcut url');

    try {

        const dirPath = path.resolve(this.save_dir);
        const filepath = `${dirPath}/${filename}.url`;

        const shortUrlContent = `\[InternetShortcut\]
URL=${data.url}
`;
        await writeFile(filepath, shortUrlContent, { encoding: 'utf8' });
    }catch(error) {
        console.error('Save short url file failed: %s', error);
        return false;
    }

    return true;
  }

  async saveDescriptionFiles(filename, data) {
    //console.log('TaJian try to save description files');

    try {
        const dirPath = path.resolve(this.save_dir);

        //save title
        let filepath = `${dirPath}/${filename}_title.txt`;
        let content = data.title;
        await writeFile(filepath, content, { encoding: 'utf8' });

        if (typeof(data.cover_base64) != 'undefined' && data.cover_base64) {
            filepath = `${dirPath}/${filename}.${data.cover_type}`;
            content = Buffer.from(data.cover_base64, "base64");                         //保存图片文件
            await writeFile(filepath, content, { encoding: 'utf8' });

            filepath = `${dirPath}/${filename}_cover.txt`;
            content = `${filename}.${data.cover_type}`;                                 //保存图片路径
            await writeFile(filepath, content, { encoding: 'utf8' });
        }else {
            filepath = `${dirPath}/${filename}_cover.txt`;
            content = data.cover;                                                       //保存图片网址
            await writeFile(filepath, content, { encoding: 'utf8' });
        }
    }catch(error) {
        console.error('Save description files failed: %s', error);
        return false;
    }

    return true;
  }

}

export default TaJian;