<?php

namespace App\Controllers\Admin;

use App\Entities\OrderEntity;
use App\Models\OrderModel;
use App\Models\ProductModel;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use Psr\Log\LoggerInterface;

class OrderController extends AdminController
{
    private $_cart_name = "order_uids";
    private $_cart_delimeter = "||";
    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
    {
        $this->_model = new OrderModel();
        parent::initController($request, $response, $logger);
        $this->_viewPath .= strtolower($this->_model->getClassName());
        helper("cookie");
    }

    //쿠키에 장바구니에 담긴 Order UID를 추가해준다.
    private function setOrderCookie(OrderEntity $entity)
    {
        $order_uids = array();
        if (has_cookie($this->_cart_name)) {
            $order_uids = explode($this->_cart_delimeter, get_cookie($this->_cart_name));
        }
        delete_cookie($this->_cart_name);
        //24시간 저장
        set_cookie([
            'name'     => $this->_cart_name,
            'value'    => implode($this->_cart_delimeter, [...$order_uids, $entity->getPrimaryKey()]),
            'expire'   => '36400',
        ]);
    }

    //장바구니에 담기
    protected function insert_process()
    {
        //fieldData Rule 검사및 fieldData 적용
        parent::insert_process();
        //상품재고 줄이기
        $productModel = new ProductModel();
        $product = $productModel->getEntity([$this->_model->getPrimaryKey() => $this->_viewDatas['fieldDatas']['product_uid']]);
        //구매 금액 비교
        $price = ($product->getPrice() - $product->getSale()) * $this->_viewDatas['fieldDatas']['quantity'];
        if ($price != $this->_viewDatas['fieldDatas']['price']) {
            throw new \Exception("실 상품금액{$price} 와 구매금액{$this->_viewDatas['fieldDatas']['price']}이 서로 다릅니다.");
        }
        $productModel->decreaseStock($product, $this->_viewDatas['fieldDatas']['quantity']);
    }
    public function insert()
    {
        $msg = "";
        try {
            $this->_viewDatas['fields'] = $this->_model->getFields(__FUNCTION__);
            $this->_viewDatas['fieldRules'] = $this->_model->getFieldRules($this->_viewDatas['fields'], __FUNCTION__);
            //Transaction 시작
            $this->insert_process();
            $this->_model->transStart();
            $entity = $this->_model->create($this->_viewDatas['fieldDatas']);
            $this->setOrderCookie($entity);
            //Transaction Commit
            $this->_model->transComplete();
            $msg = sprintf(
                "%s에서 해당 상품 %s개를 장바구니에 담았습니다.",
                $this->_viewDatas['title'],
                $this->_viewDatas['fieldDatas']['quantity']
            );
            return redirect()->to($this->_session->getFlashdata(SESSION_NAMES['RETURN_URL']));
        } catch (\Exception $e) {
            //Transaction Rollback
            $this->_model->transRollback();
            log_message("error", $e->getMessage());
            $msg = sprintf(
                "%s에서 다음 오류로 인해 장바구니에 담기를 실패하였습니다.\n%s",
                $this->_viewDatas['title'],
                $e->getMessage()
            );
            return redirect()->to($this->_session->getFlashdata(SESSION_NAMES['RETURN_URL']));
        } finally {
            $this->_session->setFlashdata("return_message", $msg);
        }
    }
}