<?php

namespace Modules\Checkout\Http\Controllers;

use Exception;
use Modules\Support\Country;
use Modules\Cart\Facades\Cart;
use Modules\Page\Entities\Page;
use Illuminate\Http\JsonResponse;
use Illuminate\Pipeline\Pipeline;
use Illuminate\Routing\Controller;
use Illuminate\Support\Collection;
use Modules\Coupon\Entities\Coupon;
use Illuminate\Contracts\View\View;
use Modules\Payment\Facades\Gateway;
use Illuminate\Contracts\View\Factory;
use Modules\Coupon\Checkers\ValidCoupon;
use Modules\Coupon\Checkers\CouponExists;
use Modules\Coupon\Checkers\MinimumSpend;
use Modules\Coupon\Checkers\MaximumSpend;
use Modules\User\Services\CustomerService;
use Modules\Checkout\Services\OrderService;
use Modules\Coupon\Checkers\AlreadyApplied;
use Modules\Address\Entities\DefaultAddress;
use Modules\Shipping\Facades\ShippingMethod;
use Modules\Coupon\Checkers\ExcludedProducts;
use Modules\Coupon\Checkers\ApplicableProducts;
use Modules\Coupon\Checkers\ExcludedCategories;
use Illuminate\Contracts\Foundation\Application;
use Modules\Coupon\Checkers\UsageLimitPerCoupon;
use Modules\Coupon\Checkers\ApplicableCategories;
use Modules\Order\Http\Requests\StoreOrderRequest;
use Modules\Coupon\Checkers\UsageLimitPerCustomer;
use Modules\Cart\Http\Middleware\CheckCartItemsStock;
use Modules\Cart\Http\Middleware\RedirectIfCartIsEmpty;

class CheckoutController extends Controller
{
    private array $checkers = [
        CouponExists::class,
        AlreadyApplied::class,
        ValidCoupon::class,
        MinimumSpend::class,
        MaximumSpend::class,
        ApplicableProducts::class,
        ExcludedProducts::class,
        ApplicableCategories::class,
        ExcludedCategories::class,
        UsageLimitPerCoupon::class,
        UsageLimitPerCustomer::class,
    ];


    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware([
            RedirectIfCartIsEmpty::class,
        ]);

        $this->middleware([
            CheckCartItemsStock::class,
        ])->only('store');
    }


    /**
     * Store a newly created resource in storage.
     *
     * @param StoreOrderRequest $request
     * @param CustomerService $customerService
     * @param OrderService $orderService
     *
     * @return JsonResponse
     */
    public function store(StoreOrderRequest $request, CustomerService $customerService, OrderService $orderService)
    {
        if (auth()->guest() && $request->create_an_account) {
            $customerService->register($request)->login();
        }


        $cartWithCoupon = null;
        $couponCode = request()->query('coupon_code');
        if ($couponCode) {
            $coupon = Coupon::findByCode($couponCode);
            try {
                resolve(Pipeline::class)
                    ->send($coupon)
                    ->through($this->checkers)
                    ->then(function ($coupon) use (&$cartWithCoupon) {
                        Cart::applyCoupon($coupon);
                    });
            } catch (Exception) {
                //Just suppressing the exception
            }
        }


        $order = $orderService->create($request);

        $gateway = Gateway::get($request->payment_method);

        try {
            $response = $gateway->purchase($order, $request);
        } catch (Exception $e) {
            $orderService->delete($order);

            return response()->json([
                'message' => $e->getMessage(),
            ], 403);
        } finally {
            if (Cart::hasCoupon()) {
                Cart::removeCoupon();
            }
        }

        return response()->json($response);
    }


    /**
     * Show the form for creating a new resource.
     *
     * @return Application|Factory|View
     */
    public function create(): View|Factory|Application
    {
        Gateway::all();

        return view('public.checkout.create', [
            'cart' => Cart::instance(),
            'countries' => Country::supported(),
            'gateways' => Gateway::all(),
            'defaultAddress' => auth()->user()->defaultAddress ?? new DefaultAddress,
            'addresses' => $this->getAddresses(),
            'termsPageURL' => Page::urlForPage(setting('storefront_terms_page')),
        ]);
    }


    /**
     * Get addresses for the logged in user.
     *
     * @return Collection
     */
    private function getAddresses()
    {
        if (auth()->guest()) {
            return collect();
        }

        return auth()->user()->addresses->keyBy('id');
    }
}