<?php

    namespace App\Http\Controllers\Shop;

    use Illuminate\Http\Request;

    use App\Http\Controllers\Controller;

    use Illuminate\Support\Facades\Auth;

    use App\Models\UserCart;
    use App\Models\UserCoupon;
	use App\Models\UserCartEntry;
	use App\Models\UserCouponCheckout;
    use App\Models\UserCartShopping;
    use App\Models\Product;
	use App\Models\UserOrder;
	use App\Models\Coupon;
    use App\Models\Setting;
    use App\Models\ProductItem;
    use App\Models\DeliveryMethod;

    class CartController extends Controller
    {
        public function __construct() {
            $this->middleware('auth');
		}

		public function checkoutSubmit(Request $request) {
			if($request->getMethod() == 'POST') {
				if(!UserCart::isEmpty(Auth::user()->id)) {
					$extraCosts = 0;
					$deliveryMethodName = '';
					$deliveryMethodPrice = 0;

					// DELIVERY METHOD
					if(UserCart::hasDroplestProducts(Auth::user()->id)) {
						$deliveryMethodId = $request->get('product_delivery_method') ?? 0;
						$deliveryMethod = DeliveryMethod::where('id', $deliveryMethodId)->get()->first();

						if($deliveryMethod == null || !$deliveryMethod->isAvailableForUsersCart()) {
							return redirect()->route('checkout')->with([
								'errorMessage' => __('frontend/shop.delivery_method_needed')
							]);
						} else {
							$extraCosts += $deliveryMethod->price;
							$deliveryMethodName = $deliveryMethod->name;
							$deliveryMethodPrice = $deliveryMethod->price;
						}
					}

					// DROP
					$dropInput = $request->get('product_drop') ?? '';
					if(UserCart::hasDroplestProducts(Auth::user()->id)) {
						if(strlen($dropInput) > 500) {
							return redirect()->route('checkout')->with([
								'errorMessage' => __('frontend/shop.order_note_long', [
									'charallowed' => 500
								])
							]);
						}

						if(strlen($dropInput) <= 0) {
							return redirect()->route('checkout')->with([
								'errorMessage' => __('frontend/shop.order_note_needed')
							]);
						}

						$dropInput = encrypt($request->get('product_drop'));
					}

					$cartTotal = UserCart::getCartSubInCent(Auth::user()->id);
					$total = $cartTotal;

					if(count(Auth::user()->getCheckoutCoupons()) > 0) {
						$userCouponCheckout = UserCouponCheckout::where('user_id', Auth::user()->id)->get()->first();

						if($userCouponCheckout != null) {
							$coupon = Coupon::where('code', $userCouponCheckout->coupon_code)->get()->first();

							if($coupon != null) {
								$total = $coupon->toPay($total);
							}
						}

						$total = $total + $extraCosts;
					}

					if(Auth::user()->balance_in_cent >= $total) {
						if($coupon != null) {
							$coupon->update([
								'used' => $coupon->used + 1
							]);
						}

						$createShopping = false;
						$cartEntries = [];

						foreach(UserCart::getCartByUserId(Auth::user()->id) as $cartItem) {
							if($cartItem[0] == null) {
								return redirect()->route('checkout')->with([
									'errorMessage' => __('frontend/v4.cart_error1')
								]);
							}

							if(!$cartItem[0]->isUnlimited() && !$cartItem[0]->isAvailableAmount($cartItem[1])) {
								return redirect()->route('checkout')->with([
									'errorMessage' => __('frontend/v4.cart_error2')
								]);
							}

							// HISTORY
							$product = $cartItem[0];

							$status = 'nothing';
							$dropInfo = '';
							$deliveryMethodNameX = '';
							$deliveryMethodPriceX = 0;

							if($product->dropNeeded()) {
								$status = 'pending';
								$dropInfo = $dropInput;

								$deliveryMethodNameX = $deliveryMethodName;
								$deliveryMethodPriceX = $deliveryMethodPrice;
							}

							if($product->isUnlimited()) {
								$order = UserOrder::create([
									'user_id' => Auth::user()->id,
									'name' => $product->name,
									'content' => $product->content,
									'amount' => $cartItem[1],
									'price_in_cent' => $product->price_in_cent,
									'totalprice' => $cartItem[2],
									'drop_info' => $dropInfo,
									'delivery_price' => $deliveryMethodPriceX,
									'delivery_method' => $deliveryMethodNameX,
									'status' => $status,
									'weight' => 0,
									'weight_char' => ''
								]);

								if($product->dropNeeded()) {
									if($order != null) {
										$createShopping = true;
										$cartEntries[] = [
											'product_id' => $product->id,
											'order_id' => $order->id,
											'user_id' => Auth::user()->id
										];
									}
								}

								$product->update([
									'sells' => $product->sells + $cartItem[1]
								]);

								Setting::set('shop.total_sells', Setting::get('shop.total_sells', 0) + $cartItem[1]);
							} else if($product->asWeight()) {
								$order = UserOrder::create([
									'user_id' => Auth::user()->id,
									'name' => $product->name,
									'amount' => 1,
									'content' => $product->content,
									'weight' => $cartItem[1],
									'weight_char' => $product->getWeightChar(),
									'price_in_cent' => $product->price_in_cent,
									'totalprice' => $cartItem[2],
									'drop_info' => $dropInfo,
									'delivery_price' => $deliveryMethodPriceX,
									'delivery_method' => $deliveryMethodNameX,
									'status' => $status
								]);

								if($product->dropNeeded()) {
									if($order != null) {
										$createShopping = true;
										$cartEntries[] = [
											'product_id' => $product->id,
											'order_id' => $order->id,
											'user_id' => Auth::user()->id
										];
									}
								}

								$product->update([
									'sells' => $product->sells + $cartItem[1],
									'weight_available' => $product->weight_available - $cartItem[1]
								]);

								Setting::set('shop.total_sells', Setting::get('shop.total_sells', 0) + 1);
							} else {
								for($i = 0; $i < $cartItem[1]; $i++) {
									$productItem = ProductItem::where('product_id', $product->id)->get()->first();
									$productContent = $productItem->content;
									$productItem->delete();

									$order = UserOrder::create([
										'user_id' => Auth::user()->id,
										'name' => $product->name,
										'amount' => 1,
										'content' => $productContent,
										'price_in_cent' => $product->price_in_cent,
										'totalprice' => $product->price_in_cent,
										'weight' => 0,
										'weight_char' => '',
										'status' => $status,
										'delivery_price' => $deliveryMethodPriceX,
										'delivery_method' => $deliveryMethodNameX,
										'drop_info' => $dropInfo
									]);

									if($product->dropNeeded()) {
										if($order != null) {
											$createShopping = true;
											$cartEntries[] = [
												'product_id' => $product->id,
												'order_id' => $order->id,
												'user_id' => Auth::user()->id
											];
										}
									}

									$product->update([
										'sells' => $product->sells + 1
									]);

									Setting::set('shop.total_sells', Setting::get('shop.total_sells', 0) + 1);
								}
							}
						}

						if($createShopping && count($cartEntries) > 1) {
							$shopping = UserCartShopping::create([
								'user_id' => Auth::user()->id
							]);

							if($shopping != null) {
								foreach($cartEntries as $cartEntry) {
									UserCartEntry::create([
										'user_id' => $cartEntry['user_id'],
										'order_id' => $cartEntry['order_id'],
										'product_id' => $cartEntry['product_id'],
										'shopping_id' => $shopping->id
									]);
								}
							}
						}

						// CLEAR CART

						UserCart::where([
							['user_id', '=', Auth::user()->id]
						])->delete();

						// SUCCESS PART

						$newBalance = Auth::user()->balance_in_cent - $total;

						// COUPON
						if(count(Auth::user()->getCheckoutCoupons()) > 0) {
							$userCouponCheckout = UserCouponCheckout::where('user_id', Auth::user()->id)->get()->first();

							if($userCouponCheckout != null) {
								$coupon = Coupon::where('code', $userCouponCheckout->id)->get()->first();

								if($coupon != null) {
									$coupon->update([
										'used' => $coupon->used + 1
									]);

									UserCoupon::create([
										'user_id' => Auth::user()->id,
										'coupon_id' => $coupon->id
									]);
								}

								$userCouponCheckout->delete();
							}
						}

                        Auth::user()->update([
                            'balance_in_cent' => $newBalance
						]);

						return redirect()->route('orders')->with([
                            'successMessage' => __('frontend/v4.thank_you')
                        ]);
					} else {
						return redirect()->route('checkout')->with([
                            'errorMessage' => __('frontend/shop.not_enought_money')
                        ]);
					}
				}
			}

			return redirect()->route('cart');
		}

		public function checkout() {
			if(UserCart::isEmpty(Auth::user()->id)) {
				return redirect()->route('cart');
			}

            return view('frontend/shop.checkout', [
                'cart' => UserCart::getCartByUserId(Auth::user()->id)
            ]);
		}

		public function clear() {
			UserCart::where([
				['user_id', '=', Auth::user()->id]
			])->delete();

			return redirect()->route('cart');
		}

		public function delete($product_id) {
			UserCart::where([
				['product_id', '=', $product_id],
				['user_id', '=', Auth::user()->id]
			])->delete();

			return redirect()->route('cart');
		}

		public function cart(Request $request) {
			echo __('frontend/v4.cart_widget', [
				'count' => UserCart::getCartCountByUserId(Auth::user()->id),
				'price' => UserCart::getCartSubPrice(Auth::user()->id)
			]);
		}

		public function ajaxAddItem(Request $request) {
			if($request->getMethod() == 'POST') {
				$productId = intval($request->get('product_id') ?? '0');
				$amount = intval($request->get('amount') ?? '0');

				$product = Product::where('id', $productId)->get()->first();

                if($product != null) {
					$userCartItem = UserCart::where('product_id', $productId)->get()->first();

					if($userCartItem != null) {
						$newAmount = $userCartItem->amount + $amount;

						$userCartItem->update([
							'amount' => $newAmount
						]);
					} else {
						UserCart::create([
							'product_id' => $product->id,
							'amount' => $amount,
							'user_id' => Auth::user()->id
						]);
					}
                }
			}
		}

        public function show()
        {
            return view('frontend/shop.cart', [
                'cart' => UserCart::getCartByUserId(Auth::user()->id)
            ]);
        }
    }