'use server';

import { writeFile, mkdir } from 'fs/promises';
import { join } from 'path';

export async function uploadImage(formData: FormData) {
  try {
    const file = formData.get('file') as File;
    if (!file) {
      return { success: false, error: 'Aucun fichier fourni' };
    }

    const bytes = await file.arrayBuffer();
    const buffer = Buffer.from(bytes);

    // Create a unique filename
    const fileExtension = file.name.split('.').pop();
    const fileName = `${Date.now()}-${Math.random().toString(36).substring(2, 9)}.${fileExtension}`;
    
    // Path for the ROOT public/uploads (where the main site will look)
    const rootPublicDir = join(process.cwd(), '..', 'public', 'uploads');
    // Path for the ADMIN public/uploads (where the admin app can see it for preview)
    const adminPublicDir = join(process.cwd(), 'public', 'uploads');

    // Ensure both directories exist
    await mkdir(rootPublicDir, { recursive: true });
    await mkdir(adminPublicDir, { recursive: true });

    // Save to both
    await writeFile(join(rootPublicDir, fileName), buffer);
    await writeFile(join(adminPublicDir, fileName), buffer);

    // Return the relative URL
    return { 
      success: true, 
      url: `/uploads/${fileName}` 
    };
  } catch (error) {
    console.error('Error during image upload:', error);
    return { success: false, error: 'Erreur lors de l\'upload de l\'image' };
  }
}