const Category = require('../models/Category');
const { successResponse, errorResponse } = require('../utils/apiResponse');

const getCategories = async (req, res, next) => {
  try {
    const categories = await Category.find({ isActive: true }).sort({ displayOrder: 1 });
    return successResponse(res, 'Categories retrieved', categories);
  } catch (error) {
    next(error);
  }
};

const createCategory = async (req, res, next) => {
  try {
    const category = new Category(req.body);
    const saved = await category.save();
    return successResponse(res, 'Category created', saved, 201);
  } catch (error) {
    next(error);
  }
};

const updateCategory = async (req, res, next) => {
  try {
    const category = await Category.findByIdAndUpdate(req.params.id, req.body, { new: true });
    if (!category) return errorResponse(res, 'Category not found', [], 404);
    return successResponse(res, 'Category updated', category);
  } catch (error) {
    next(error);
  }
};

const deleteCategory = async (req, res, next) => {
  try {
    const category = await Category.findByIdAndDelete(req.params.id);
    if (!category) return errorResponse(res, 'Category not found', [], 404);
    return successResponse(res, 'Category deleted');
  } catch (error) {
    next(error);
  }
};

module.exports = { getCategories, createCategory, updateCategory, deleteCategory };