<?php

namespace Controllers;

use Libs\ResponseLib;
use Models\CategoryModel;
use Psr\Http\Message\ServerRequestInterface;

class CategoryController
{
    private CategoryModel $model;

    public function __construct()
    {
        $this->model = new CategoryModel();
    }

    public function __invoke(ServerRequestInterface $request)
    {
        $method = $request->getMethod();
        $body = json_decode((string)$request->getBody(), true) ?? [];
        $companyId = $body['company_id'] ?? null;

        if (!$companyId) {
            return ResponseLib::sendFail("Missing Company ID", [], "E_VALIDATE")->withStatus(401);
        }

        if ($method === 'GET') {
            $categories = $this->model->getCategories($companyId);
            return ResponseLib::sendOk($categories);
        }

        if ($method === 'POST') {
            if (isset($body['category_name'])) {
                $created = $this->model->createCategory(
                    $body['category_name'],
                    $companyId,
                    $body['category_is_kitchen'] ?? false
                );
                return $created ? ResponseLib::sendOk(['created' => true]) : ResponseLib::sendFail("Failed to Create Category", [], "E_VALIDATE")->withStatus(402);
            }

            if (isset($body['delete'])) {
                $deleted = $this->model->deleteByName($body['delete'], $companyId);
                return $deleted ? ResponseLib::sendOk(['deleted' => true]) : ResponseLib::sendFail("Failed to Delete Category", [], "E_VALIDATE")->withStatus(403);
            }

            if (isset($body['product_name'], $body['category_name'], $body['product_price'])) {
                $added = $this->model->addProductToCategory(
                    $body['product_name'],
                    (float)$body['product_price'],
                    $body['category_name'],
                    $companyId
                );
                return $added ? ResponseLib::sendOk(['product_added' => true]) : ResponseLib::sendFail("Category Not Found", [], "E_VALIDATE")->withStatus(404);
            }

            return ResponseLib::sendFail("Missing Data", [], "E_VALIDATE")->withStatus(405);
        }

        return ResponseLib::sendMethodNotAllowed(['GET', 'POST']);
    }
}