<?php

namespace App\Http\Controllers\Portal;

use App\Http\Controllers\Controller;
use App\Models\Product;
use App\Models\ShoppingOrder;
use App\Models\ShoppingPayment;
use App\Models\ShoppingUser;
use App\Services\Payment;
use App\Services\ProductOrderContext;
use App\Services\Shop;
use App\Services\Util;
use Auth;
use Illuminate\Support\Facades\Session;
use Yard;

class OrderController extends Controller
{
    private string $instance = 'webshop';

    public function __construct()
    {
        $this->middleware('auth:customers');
    }

    /**
     * Bestellübersicht anzeigen.
     */
    public function myOrders()
    {
        return view('portal.order.my_orders');
    }

    /**
     * DataTable-Daten für Bestellübersicht (server-side).
     */
    public function ordersDatatable()
    {
        $user = Auth::guard('customers')->user();

        if (! $user->shopping_user_id) {
            return \DataTables::of(collect())->make(true);
        }

        $shopping_user = ShoppingUser::findOrFail($user->shopping_user_id);
        $userIds = ShoppingUser::where('billing_email', $shopping_user->billing_email)
            ->where('member_id', $shopping_user->member_id)
            ->pluck('id');

        $query = ShoppingOrder::with('shopping_user')
            ->select('shopping_orders.*')
            ->whereIn('shopping_user_id', $userIds)
            ->whereNotNull('txaction');

        return \DataTables::eloquent($query)
            ->addColumn('id', function (ShoppingOrder $order) {
                return '<a href="'.route('portal.my_orders.show', $order->id).'" '
                    .'class="btn icon-btn btn-sm btn-primary"><span class="fa fa-eye"></span></a>';
            })
            ->addColumn('created_at', function (ShoppingOrder $order) {
                return $order->created_at->format('d.m.Y');
            })
            ->addColumn('total_shipping', function (ShoppingOrder $order) {
                return '<span class="no-line-break">'.$order->getFormattedTotalShipping().' €</span>';
            })
            ->addColumn('txaction', function (ShoppingOrder $order) {
                return Payment::getShoppingOrderBadge($order);
            })
            ->addColumn('shipped', function (ShoppingOrder $order) {
                return '<span class="badge badge-pill badge-'.$order->getShippedColor().'">'
                    .$order->getShippedType().'</span>';
            })
            ->addColumn('firstname', function (ShoppingOrder $order) {
                return $order->shopping_user->billing_firstname ?? '-';
            })
            ->addColumn('lastname', function (ShoppingOrder $order) {
                return $order->shopping_user->billing_lastname ?? '-';
            })
            ->addColumn('email', function (ShoppingOrder $order) {
                return $order->shopping_user->billing_email ?? '-';
            })
            ->addColumn('invoice', function (ShoppingOrder $order) {
                if ($order->isInvoice()) {
                    return '<span class="no-line-break">'
                        .'<a href="'.route('storage_file', [$order->id, 'invoice', 'download']).'" '
                        .'class="btn btn-primary btn-xs"><i class="fa fa-download"></i></a> '
                        .'<a href="'.route('storage_file', [$order->id, 'invoice', 'stream']).'" '
                        .'target="_blank" class="btn btn-warning btn-xs"><i class="fa fa-eye"></i></a>'
                        .'</span>';
                }

                return '-';
            })
            ->addColumn('payment_for', function (ShoppingOrder $order) {
                return Payment::getPaymentForBadge($order);
            })
            ->orderColumn('id', 'shopping_orders.id $1')
            ->orderColumn('created_at', 'shopping_orders.created_at $1')
            ->orderColumn('total_shipping', 'shopping_orders.total_shipping $1')
            ->orderColumn('txaction', 'shopping_orders.txaction $1')
            ->orderColumn('shipped', 'shopping_orders.shipped $1')
            ->rawColumns(['id', 'txaction', 'payment_for', 'total_shipping', 'invoice', 'shipped'])
            ->make(true);
    }

    /**
     * Bestelldetail anzeigen.
     */
    public function myOrderShow(int $id)
    {
        $user = Auth::guard('customers')->user();

        if (! $user->shopping_user_id) {
            abort(403, 'Unauthorized action.');
        }

        $shopping_order = ShoppingOrder::with('shopping_user', 'shopping_order_items.product.images')
            ->findOrFail($id);

        $shopping_user = ShoppingUser::findOrFail($user->shopping_user_id);
        if (! $this->orderBelongsToMember($shopping_order, $shopping_user)) {
            abort(403, 'Unauthorized action.');
        }

        return view('portal.order.my_order_show', [
            'shopping_order' => $shopping_order,
            'shopping_user' => $shopping_user,
        ]);
    }

    /**
     * DataTable-Daten für Zahlungen einer Bestellung (server-side).
     */
    public function paymentsDatatable(int $id)
    {
        $user = Auth::guard('customers')->user();

        if (! $user->shopping_user_id) {
            return \DataTables::of(collect())->make(true);
        }

        $shopping_order = ShoppingOrder::findOrFail($id);
        $shopping_user = ShoppingUser::findOrFail($user->shopping_user_id);

        if (! $this->orderBelongsToMember($shopping_order, $shopping_user)) {
            abort(403, 'Unauthorized action.');
        }

        $query = ShoppingPayment::where('shopping_order_id', $id);

        $counter = 0;

        return \DataTables::eloquent($query)
            ->addColumn('line_number', function (ShoppingPayment $payment) use (&$counter) {
                $counter++;

                return $counter;
            })
            ->addColumn('payment_type', function (ShoppingPayment $payment) {
                return $payment->getPaymentType();
            })
            ->addColumn('amount', function (ShoppingPayment $payment) {
                return $payment->getPaymentAmount();
            })
            ->addColumn('status', function (ShoppingPayment $payment) {
                return Payment::getShoppingPaymentBadge($payment);
            })
            ->addColumn('created_at', function (ShoppingPayment $payment) {
                return $payment->created_at->format('d.m.Y H:i');
            })
            ->addColumn('reference', function (ShoppingPayment $payment) {
                return $payment->reference;
            })
            ->rawColumns(['status'])
            ->make(true);
    }

    /**
     * Prüft, ob Bestellung zum Mitglied gehört (billing_email + member_id).
     */
    private function orderBelongsToMember(ShoppingOrder $order, ShoppingUser $member): bool
    {
        $orderUser = $order->shopping_user;

        return $orderUser
            && $orderUser->billing_email === $member->billing_email
            && $orderUser->member_id === $member->member_id;
    }

    /**
     * Bestellung erneut in den Warenkorb legen.
     */
    public function myOrderCreate(int $id)
    {
        $user = Auth::guard('customers')->user();
        $shopping_order = ShoppingOrder::with('member.shop')->findOrFail($id);

        if ($shopping_order->shopping_user_id != $user->shopping_user_id) {
            $shopping_user = ShoppingUser::findOrFail($user->shopping_user_id);
            if (! $this->orderBelongsToMember($shopping_order, $shopping_user)) {
                abort(403, 'Unauthorized action.');
            }
        }

        $shopping_user = ShoppingUser::findOrFail($user->shopping_user_id);

        if ($shopping_order->is_abo) {
            Session::flash('alert-error', __('order.reorder_abo_not_allowed'));

            return redirect()->route('portal.my_orders.show', $shopping_order->id);
        }

        $delivery_country = $shopping_user->getDeliveryCountry(true);

        \Session::put('user_init_country', strtolower($delivery_country->code));
        \Session::forget('user_init_country_options');
        \Session::put('locale', strtolower(\App::getLocale()));

        Shop::initUserShopLang($delivery_country, $this->instance);

        foreach ($shopping_order->shopping_order_items as $item) {
            if ($item->product && ProductOrderContext::isProductAllowedInCustomerWebshop($item->product)) {
                $this->addToCart($item->product_id, $item->qty);
            }
        }

        return redirect(Util::getCustomerReorderCartUrl($shopping_order));
    }

    private function addToCart(int $productId, int $quantity = 1): void
    {
        $product = Product::find($productId);
        if (! $product || ! ProductOrderContext::isProductAllowedInCustomerWebshop($product)) {
            return;
        }

        $image = $product->images->first()?->slug ?? '';
        $yard = Yard::instance($this->instance);

        $additionalWeight = (int) $product->weight * $quantity;
        if ($additionalWeight > 0 && $yard->exceedsMaxWeight($additionalWeight)) {
            \Session::flash('alert-error', __('msg.cart_max_weight_reached'));

            return;
        }

        $cartItem = $yard->add(
            $product->id,
            $product->getLang('name'),
            $quantity,
            $product->getPriceWith($yard->getUserTaxFree(), false, $yard->getUserCountry()),
            false,
            false,
            [
                'image' => $image,
                'slug' => $product->slug,
                'weight' => $product->weight,
                'points' => $product->points,
                'no_commission' => $product->no_commission,
                'no_free_shipping' => $product->no_free_shipping,
                'show_on' => $product->show_on,
            ]
        );

        if ($yard->getUserTaxFree()) {
            Yard::setTax($cartItem->rowId, 0);
        } else {
            Yard::setTax($cartItem->rowId, $product->getTaxWith($yard->getUserCountry()));
        }

        $yard->reCalculateShippingPrice();
        \Session()->flash('show-card-after-add', true);
    }
}