<?php

namespace App\Http\Controllers\Bo;

use App\Enums\ValidationStatus;
use App\Http\Controllers\Controller;
use App\Models\Order;
use App\Models\OrderLine;
use App\Models\OrdersProducts;
use App\Models\Product;
use App\Models\Timeslot;
use App\Models\Shop;
use App\Http\Requests\SortOrders;
use Illuminate\Support\Facades\Mail;
use App\Mail\OrderStatusMail;
use App\Mail\OrderConfirmMail;
use App\Mail\OrderConfirmAdminMail;
use App\Jobs\CsvOrderWrite;
use App\Models\Customer;
use App\Models\Setting;
use Carbon\Carbon;
use Carbon\CarbonImmutable;
use Carbon\CarbonInterval;
use Gloudemans\Shoppingcart\Facades\Cart;
use Illuminate\Support\Facades\Auth;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Session;

class OrderController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @param \Illuminate\Http\Request $request
     * @return \Illuminate\Contracts\View\View|\Illuminate\Contracts\View\Factory
     */
    public function index(Request $request)
    {
        /** @var \Illuminate\Database\Eloquent\Builder $orders */
        $orders = Order::query();

        if ($request->search) {
            $this->searchQuery(
                $orders,
                $request->search,
                null,
                'label'
            );
        }

        // if (Session::has('orders.sort_col') and Session::has('orders.sort_way')) {
        //     switch (Session::get('orders.sort_col')) {
        //         case 'date':
        //             $orders = $orders->orderBy('date', Session::get('orders.sort_way'));
        //             break;
        //         case 'status_id':
        //             $orders = $orders->orderBy('status_id', Session::get('orders.sort_way'));
        //             break;
        //         case 'magasin_id':
        //             $orders = $orders->select('orders.*');
        //             $orders = $orders->leftJoin('timeslots', 'timeslots.order_id', '=', 'orders.id');
        //             $orders = $orders->leftJoin('shops', 'timeslots.shop_id', '=', 'shops.id');
        //             $orders = $orders->orderBy('shops.id', Session::get('orders.sort_way'));
        //             break;
        //         case 'date_retrait':
        //             $orders = $orders->select('orders.*');
        //             $orders = $orders->leftJoin('timeslots', 'timeslots.order_id', '=', 'orders.id');
        //             $orders = $orders->orderBy('timeslots.day', Session::get('orders.sort_way'));
        //             $orders = $orders->orderBy('timeslots.time', Session::get('orders.sort_way'));
        //             break;
        //         case 'customer_id':
        //             $orders = $orders->orderBy('customer_id', Session::get('orders.sort_way'));
        //             break;
        //     }//end switch
        // }//end if

        $this->sortQuery($orders);
        $searchFields = trans('Label');

        $orders->orderBy('updated_at', 'DESC');
        $orders = $orders->paginate(10);

        return view('back.orders.index', compact('orders', 'searchFields'));
    }

    /**
     * Met a jour le statut de validation d'une commande en annulé
     *
     * @param \App\Models\Order $order
     * @return \Illuminate\Http\RedirectResponse
     */
    public function cancelOrder(Order $order)
    {
        $order->validation_status = ValidationStatus::cancelled();
        $order->saveOrFail();

        return back()->with('success', "La commande {$order->reference} a été annulée.");
    }

    /**
     * bo : page détail commande
     *
     * @param \App\Models\Order $order
     * @return \Illuminate\Contracts\View\View
     */
    public function orderDetails(Order $order)
    {
        return view('back.orders.details', [
            'orderModel' => $order
        ]);
    }


    /**
     * orders that ship today
     *
     * @param SortOrders $request
     * @return \Illuminate\Contracts\View\View
     */
    public function today(SortOrders $request)
    {
        $orders = $this->filterOrders($request);

        // Filter today.
        $today  = CarbonImmutable::now()->startOfDay();
        $orders = $orders->whereHas('timeslot', function ($q) use ($today) {
            $q->where('day', '=', $today->format('d/m/Y'));
        });


        $orders = $orders->get();
        return view('back.orders.index', compact('orders', 'today'));
    }

    /**
     * action de changement de statut vers l'avant
     * envoi de mails transctionnels
     *
     * @param string $reference Reference de la commande.
     * @return \Illuminate\Http\RedirectResponse
     */
    public function changeStatus(string $reference)
    {
        $order            = Order::where('reference', $reference)->first();
        $order->status_id = $order->status_id + 1;
        $order->save();

        // Send confirm mail.
        Mail::to($order->customer->email)->send(new OrderStatusMail($order));

        return back()->with('success', "Changement de status enregistré pour la commande " . $order->reference . ".");
    }


    /**
     * @deprecated Supprimer cette méthode qui repose sur un modèle de donnée osolète.
     * ajout de produits à la commande
     *
     * @param string  $orderReference
     * @param integer $productId
     * @param integer $quantity
     * @return \Illuminate\Http\RedirectResponse
     */
    public function addProduct(string $orderReference, int $productId, int $quantity)
    {
        $product = Product::findOrFail($productId);
        $order   = Order::where('reference', $orderReference)->first();

        // FIXME: price_buy No longer available.
        $order->total             = $order->total + (($product->price - $product->price_buy) * $quantity);
        $orderProduct             = new OrdersProducts();
        $orderProduct->product_id = $product->id;
        $orderProduct->order_id   = $order->id;
        $orderProduct->quantity   = $quantity;
        $orderProduct->save();


        return redirect()->route('bo.orders')->with('success', "Le produit a été ajouté.");
    }

    /**
     * front
     * Storing order from sales tunnel
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function store()
    {
        // Save.
        Cart::instance('panier');
        $order = new Order();
        // Generate order ref.
        $order->reference   = $this->generateOrderRef();
        $order->date        = Carbon::now();
        $order->status_id   = 1;
        $order->total       = str_replace(',', '.', str_replace(' ', '', Cart::total()));
        $order->customer_id = Auth::user()->id;

        $order->save();

        // Order_id.
        Cart::instance('panier');
        $cart = Cart::content();
        foreach ($cart as $cartItem) {
            $order_line             = new OrderLine();
            $order_line->order_id   = $order->id;
            $order_line->product_id = $cartItem->model->id;
            $order_line->quantity   = $cartItem->qty;
            // Gross unit price.
            $order_line->unit_price = $cartItem->model->priceHt;
            // Discount per unit.
            $order_line->unit_discount = $cartItem->model->discountAmount;
            // Tax rate for this line.
            $order_line->tax_rate = $cartItem->taxRate;
            // Tax amount par unit.
            $order_line->unit_tax = round(
                (($order_line->unit_price - $order_line->unit_discount) * ($order_line->tax_rate / 100)) * 100
            ) / 100;
            // Discount amount for the line.
            $order_line->total_discount = $order_line->unit_discount * $order_line->quantity;
            // Gross amount for the line.
            $order_line->total_ht = ($order_line->unit_price - $order_line->unit_discount) * $order_line->quantity;
            // Tax amount for the line.
            $order_line->total_tax = $order_line->unit_tax * $order_line->quantity;
            // Total TTC avec remises de la ligne.
            $order_line->total_ttc = $order_line->total_ht + $order_line->total_tax;

            $order_line->save();
        } //end foreach

        // Empty cart.
        Cart::destroy();
        // Then redirect.
        return redirect()->route('order-tunnel.pick-slot', ['reference' => $order->reference]);
    }

    /**
     * generate order Reference
     * for a new order
     *
     * @return string
     */
    public function generateOrderRef()
    {

        // Format : YYYYMMDDHHMM000.
        $now = Carbon::now();
        // Count todays orders.
        $countorders = Order::whereDate('created_at', Carbon::today())->count();
        // Add one.
        $countorders++;
        $ref = $now->isoFormat('YYYYMMDDHHmm') . str_pad($countorders, 3, "0", STR_PAD_LEFT);
        return $ref;
    }

    /**
     * front tunnel de commande étape 3 : choix de créneau
     *
     * @param string $reference
     * @return \Illuminate\Contracts\View\View
     */
    public function timeSlotPick(string $reference)
    {
        $activestep = 3;
        if (config('theme.multi_relay')) {
            $shop = Shop::all();
        } else {
            $shop = Shop::first();
        }

        $availCreneaux = array();
        $order         = Order::where('reference', '=', $reference)->firstOrFail();

        return view('sales.pick-slot', compact('activestep', 'availCreneaux', 'order', 'shop'));
    }

    /**
     * add timeslot by interval between start and end hour
     *
     * @param array           $plage
     * @param integer         $weekDay
     * @param CarbonImmutable $current
     * @param Shop            $shop
     * @param CarbonImmutable $now
     * @param CarbonImmutable $today
     * @param CarbonInterval  $delaiPrepa
     * @param CarbonInterval  $interval
     * @param Carbon          $currentTime
     * @param Carbon          $endTime
     * @return array
     */
    private function addCreneaux(
        array $plage,
        int $weekDay,
        CarbonImmutable $current,
        Shop $shop,
        CarbonImmutable $now,
        CarbonImmutable $today,
        CarbonInterval $delaiPrepa,
        CarbonInterval $interval,
        Carbon $currentTime,
        Carbon $endTime
    ) {
        $retArray = array();
        do {
            $creneau  = $currentTime->format('H:i');
            $nbtakens = $shop->timeslots()
                ->where('day', $current->format('d/m/Y'))
                ->where('time', $creneau)->count();

            if ($nbtakens >= $plage[$weekDay]['max_orders_per_interval']) {
                $isDispo = false;
            } else {
                $isDispo = true;
            }

            if (
                $current->addHours($currentTime->format('H'))->addMinutes($currentTime->format('i')) <
                $now->add($delaiPrepa)
            ) {
                $isDispo = false;
            }
            // Attention si la date est passée (today mais avant maintenant) : pas de créneau.
            if ($current > $today || $currentTime >= $now) {
                $retArray[] = array($creneau, $isDispo);
            }
            $currentTime->add($interval);
        } while ($currentTime <= $endTime);
        return $retArray;
    }

    /**
     * give array of available crenaux
     *
     * @param integer $id
     * @return array
     */
    public function getAvailableCreneauxByShop(int $id)
    {
        // Setting à stocker et réutiliser.
        $plage_days = Setting::where('key', 'order_withdrawal_period')->firstOrFail()->value;

        $shop             = Shop::findOrFail($id);
        $timeslotSettings = $shop->timeslotSettings;
        // $timeslotSettings = TimeslotSetting::all();
        // Fabriquons un tableau recap.
        $plage = array();
        foreach ($timeslotSettings as $day) {
            $plage[$day->day_index] = array(
                'morning_start' => $day->morning_start,
                'morning_end' => $day->morning_end,
                'afternoon_start' => $day->afternoon_start,
                'afternoon_end' => $day->afternoon_end,
                'interval' => $day->interval,
                'min_order_preparation' => $day->min_order_preparation,
                'max_orders_per_interval' => $day->max_orders_per_interval
            );
        }

        // Génération des plages.
        // Start today.
        $today   = CarbonImmutable::now()->startOfDay();
        $weekDay = $today->weekday();
        // Final boundary (permet de limiter la liste des jours d'exception).
        $finalday = $today->add($plage_days, 'day');
        $now      = CarbonImmutable::now();
        // Jours exceptions.
        $noCollectDays = $shop->collectionExceptions()
            ->whereDate('date', '>', $now)
            ->whereDate('date', '<=', $finalday)
            ->orderBy('date')->get();

        $delaiPrepa = CarbonInterval::createFromFormat('h:i', $plage[$weekDay]['min_order_preparation'] ?? '01:00');

        $availCreneaux = array();

        for ($i = 0; $i < $plage_days; $i++) {
            $current  = $today->add($i, 'day');
            $weekDay  = $current->weekday();
            $interval = CarbonInterval::createFromFormat('h:i', $plage[$weekDay]['interval'] ?? '00:15');

            // Si c'est un jour exception skip.
            $skip = false;
            foreach ($noCollectDays as $not_today) {
                if ($current->isSameDay($not_today->date)) {
                    $skip = true;
                }
            }
            if ($skip) {
                continue;
            }
            $availCreneaux[$current->format('d/m/Y')] = array();
            // Matinée.
            if (!empty($plage[$weekDay]['morning_start'])) {
                $currentTime = Carbon::createFromTimeString($plage[$weekDay]['morning_start']);
                $endTime     = Carbon::createFromTimeString($plage[$weekDay]['morning_end']);

                $morningCreneaux = $this->addCreneaux(
                    $plage,
                    $weekDay,
                    $current,
                    $shop,
                    $now,
                    $today,
                    $delaiPrepa,
                    $interval,
                    $currentTime,
                    $endTime
                );

                $availCreneaux[$current->format('d/m/Y')] = array_merge(
                    $availCreneaux[$current->format('d/m/Y')],
                    $morningCreneaux
                );
            } //end if
            // Aprem.
            if (!empty($plage[$weekDay]['afternoon_start'])) {
                $currentTime = Carbon::createFromTimeString($plage[$weekDay]['afternoon_start']);
                $endTime     = Carbon::createFromTimeString($plage[$weekDay]['afternoon_end']);

                $afternoonCreneaux = $this->addCreneaux(
                    $plage,
                    $weekDay,
                    $current,
                    $shop,
                    $now,
                    $today,
                    $delaiPrepa,
                    $interval,
                    $currentTime,
                    $endTime
                );

                $availCreneaux[$current->format('d/m/Y')] = array_merge(
                    $availCreneaux[$current->format('d/m/Y')],
                    $afternoonCreneaux
                );
            } //end if
        } //end for
        return $availCreneaux;
    }

    /**
     * Call ajax pour le composant vue de timeslots.
     *
     * @param Request $request
     * @return array
     */
    public function getAvailableCreneaux(Request $request)
    {
        return $this->getAvailableCreneauxByShop($request->id);
    }

    /**
     * front
     * enregistrement du créneau de collect
     * et validation de la commande
     *
     * @param Request $request
     * @return \Illuminate\Http\RedirectResponse
     */
    public function setTimeSlot(Request $request)
    {
        $request->validate([
            'selectedmagasin' => 'required',
            'selectedcreneau' => 'required',
            'ok_cgv' => 'accepted',
        ]);

        $time_slot  = Carbon::createFromFormat('d/m/Y-H:i', $request->selectedcreneau);
        $tsday      = explode('-', $request->selectedcreneau)[0];
        $tstime     = explode('-', $request->selectedcreneau)[1];
        $magasin_id = $request->selectedmagasin;
        $reference  = $request->order_ref;
        $order      = Order::where('reference', '=', $reference)->firstOrFail();

        if ($order->status_id == 1) {
            // On ne traite l'enregistrement que pour les commandes en attente venant de l'étape de récap.
            // Save timeslot.
            $timeslot             = Timeslot::firstOrNew(['order_id' => $order->id]);
            $timeslot->order_id   = $order->id;
            $timeslot->magasin_id = $magasin_id;
            $timeslot->day        = $tsday;
            $timeslot->time       = $tstime;
            $timeslot->save();

            // Save order status.
            $order->status_id = 3;
            $order->save();

            // Send confirm mail.
            Mail::to($order->customer->email)->queue(new OrderConfirmMail($order));

            // Envoi du mail de confirmation aux admins site.
            $toMailSetting = Setting::where('key', 'send_order_confirm_mail_to')->first();
            if (empty($toMailSetting->value)) {
                $toMail = config('mail.from.address');
            } else {
                $toMail = $toMailSetting->value;
            }
            Mail::to($toMail)->queue(new OrderConfirmAdminMail($order));
        } //end if

        // Redirect to final confirmation.
        return redirect()->route('order-tunnel.confirm', ['reference' => $order->reference]);
    }

    /**
     * generate Order
     * Test method
     *
     * @param string $reference
     * @return void
     */
    public function generateOrder(string $reference)
    {
        $order = Order::where('reference', '=', $reference)->with('lines')->firstOrFail();
        $job   = new CsvOrderWrite($order);
        $job->handle();
        dd('end');
    }

    /**
     * front
     * page de confirmation de commande
     *
     * @param string $reference
     * @return \Illuminate\Contracts\View\View
     */
    public function confirmOrder(string $reference)
    {
        $activestep = 4;

        $idcommande = Session::get('idcommande');
        $order      = Order::where('reference', '=', $reference)->firstOrFail();

        // 1 seul magasin en base pour le moment
        $shop = Shop::find($order->timeslot->shop->id);

        return view('sales.confirm', compact('activestep', 'order', 'shop'));
    }

    /**
     * bo
     * ajx : affichage d'infos sur un client
     *
     * @param integer     $id
     * @param string|null $mode
     * @return \Illuminate\Contracts\View\View
     */
    public function getCustomerInfo(int $id, string $mode = null)
    {
        $cust = Customer::findOrFail($id);
        if (!is_null($mode)) {
            if ($mode == "tippy") {
                return view('back.customer.tippy-card', compact('cust'));
            }
            if ($mode == "json") {
                return $cust->apiData;
            }
            return view('back.customer.info-card', compact('cust'));
        }
        return view('back.customer.info-popup', compact('cust'));
    }
}