import { exec } from 'child_process';
import { promisify } from 'util';
import path from 'path';
import { Recipe, RecipeImportResponse } from '@basil/shared';

const execAsync = promisify(exec);

export class ScraperService {
  async scrapeRecipe(url: string): Promise<RecipeImportResponse> {
    try {
      // Call Python recipe-scrapers script (path relative to working directory /app/packages/api)
      const scriptPath = 'scripts/scrape_recipe.py';
      const { stdout, stderr } = await execAsync(`python3 ${scriptPath} "${url}"`, {
        timeout: 30000, // 30 second timeout
      });

      if (stderr && !stdout) {
        throw new Error(`Python script error: ${stderr}`);
      }

      // Parse the JSON output from the Python script
      const result: RecipeImportResponse = JSON.parse(stdout);

      // Add source URL if not present
      if (result.recipe) {
        result.recipe.sourceUrl = url;
      }

      return result;
    } catch (error) {
      console.error('Error scraping recipe:', error);
      return {
        success: false,
        error: error instanceof Error ? error.message : 'Failed to scrape recipe',
        recipe: {},
      };
    }
  }
}