import axios from 'axios';
import fs from 'fs-extra';
import path from 'path';
import { URLSearchParams } from 'url';

// POEditor API information
const API_TOKEN = process.env.POEDITOR_API;
const PROJECT_ID = process.env.POEDITOR_PROJECT_ID;
const LANGUAGES = (process.env.LANGUAGES || 'tr,en').split(',');
const EXPORT_FORMAT = process.env.EXPORT_FORMAT || 'key_value_json';

// POEditor API endpoint
const API_URL = 'https://api.poeditor.com/v2';

// Function to download translations
async function downloadTranslations() {
  try {
    console.log('Downloading translations from POEditor...');
    console.log(`Using export format: ${EXPORT_FORMAT}`);

    for (const language of LANGUAGES) {
      console.log(`Downloading translations for ${language} language...`);

      // Get export URL from POEditor
      const exportResponse = await axios.post(`${API_URL}/projects/export`,
        new URLSearchParams({
          api_token: API_TOKEN,
          id: PROJECT_ID,
          language: language,
          type: EXPORT_FORMAT
        })
      );

      if (exportResponse.data.response.status !== 'success') {
        throw new Error(`Failed to get export URL for ${language} language: ${JSON.stringify(exportResponse.data)}`);
      }

      const fileUrl = exportResponse.data.result.url;
      console.log(`Export URL obtained for ${language}`);

      // Download translation file
      const downloadResponse = await axios.get(fileUrl, { responseType: 'json' });
      const translations = downloadResponse.data;
      console.log(`Downloaded translations for ${language}`);

      // Check the format of data returned from POEditor and convert if necessary
      let formattedTranslations = translations;

      // If data is in array format, convert it to key-value format
      if (Array.isArray(translations)) {
        console.log(`Converting array format to key-value format for ${language}`);
        formattedTranslations = {};
        translations.forEach(item => {
          if (item.term && item.definition) {
            formattedTranslations[item.term] = item.definition;
          }
        });
      }

      // Save file
      const outputPath = path.join(process.cwd(), 'temp', `${language}.json`);
      await fs.writeJson(outputPath, formattedTranslations, { spaces: 2 });

      console.log(`Translations for ${language} language successfully downloaded and saved: ${outputPath}`);
    }

    console.log('All translations successfully downloaded!');
  } catch (error) {
    console.error('An error occurred while downloading translations:', error);
    process.exit(1);
  }
}

// Main function
async function main() {
  try {
    // Clean temp folder
    await fs.emptyDir(path.join(process.cwd(), 'temp'));

    // Download translations
    await downloadTranslations();
  } catch (error) {
    console.error('An error occurred during the process:', error);
    process.exit(1);
  }
}

// Run script
main();