import { Router } from "express";
import { type AuthenticatedRequest } from "../middleware/auth.middleware";
import {
  getFormFolders,
  createFormFolder,
  updateFormFolder,
  deleteFormFolder,
  moveFormToFolder,
  reorderFormFolders,
  moveFormFolder,
} from "../storage/folder.storage";

export function registerFormFolderRoutes(router: ReturnType<typeof Router>): void {
  router.get('/api/forms/folders', async (req: AuthenticatedRequest, res) => {
    try {
      const folders = await getFormFolders(req.organizationId!);
      res.json({ success: true, folders });
    } catch (error) {
      console.error('Get form folders error:', error);
      res.status(500).json({ success: false, error: 'Ошибка при получении папок' });
    }
  });

  router.post('/api/forms/folders', async (req: AuthenticatedRequest, res) => {
    try {
      const { name, parentId, position } = req.body;
      if (!name || typeof name !== 'string') {
        return res.status(400).json({ success: false, error: 'Название папки обязательно' });
      }
      const folder = await createFormFolder({
        organizationId: req.organizationId!,
        name,
        parentId: parentId ?? null,
        position: position ?? 0,
      });
      res.status(201).json({ success: true, folder });
    } catch (error) {
      console.error('Create form folder error:', error);
      res.status(500).json({ success: false, error: 'Ошибка при создании папки' });
    }
  });

  router.put('/api/forms/folders/:id', async (req: AuthenticatedRequest, res) => {
    try {
      const id = parseInt(req.params.id);
      const { name, parentId, position } = req.body;
      let folder;
      if (parentId !== undefined || position !== undefined) {
        folder = await moveFormFolder(id, req.organizationId!, parentId ?? null, position ?? 0);
      } else {
        folder = await updateFormFolder(id, req.organizationId!, { name });
      }
      if (!folder) {
        return res.status(404).json({ success: false, error: 'Папка не найдена' });
      }
      res.json({ success: true, folder });
    } catch (error) {
      console.error('Update form folder error:', error);
      res.status(500).json({ success: false, error: 'Ошибка при обновлении папки' });
    }
  });

  router.delete('/api/forms/folders/:id', async (req: AuthenticatedRequest, res) => {
    try {
      const id = parseInt(req.params.id);
      await deleteFormFolder(id, req.organizationId!);
      res.json({ success: true });
    } catch (error) {
      console.error('Delete form folder error:', error);
      res.status(500).json({ success: false, error: 'Ошибка при удалении папки' });
    }
  });

  router.patch('/api/forms/folders/reorder', async (req: AuthenticatedRequest, res) => {
    try {
      const { updates } = req.body;
      if (!Array.isArray(updates)) {
        return res.status(400).json({ success: false, error: 'Некорректные данные' });
      }
      await reorderFormFolders(req.organizationId!, updates);
      res.json({ success: true });
    } catch (error) {
      console.error('Reorder form folders error:', error);
      res.status(500).json({ success: false, error: 'Ошибка при изменении порядка' });
    }
  });

  router.patch('/api/forms/:id/folder', async (req: AuthenticatedRequest, res) => {
    try {
      const id = parseInt(req.params.id);
      const { folderId } = req.body;
      const form = await moveFormToFolder(id, req.organizationId!, folderId ?? null);
      if (!form) {
        return res.status(404).json({ success: false, error: 'Форма не найдена' });
      }
      res.json({ success: true, form });
    } catch (error) {
      console.error('Move form to folder error:', error);
      res.status(500).json({ success: false, error: 'Ошибка при перемещении формы' });
    }
  });
}