<?php
namespace App\Services;

use App\Models\Country;
use App\Models\Product;
use App\Models\ShippingCountry;
use \Gloudemans\Shoppingcart\Cart;
use Illuminate\Support\Collection;
use Gloudemans\Shoppingcart\CartItem;
use Illuminate\Session\SessionManager;
use Illuminate\Contracts\Events\Dispatcher;
use Gloudemans\Shoppingcart\Contracts\Buyable;


class Yard extends Cart
{
    private $shipping_price = 0;
    private $shipping_price_net = 0;
    private $shipping_tax_rate = 0;
    private $shipping_tax = 0;
    private $shipping_country_id = 0; //default de
    private $shipping_is_for;
    private $num_comp;
    private $ysession;
    private $user_tax_free;
    private $user_reverse_charge;
    private $user_country_id;
    private $user_country;
    private $shopping_data = [];

    public function __construct(SessionManager $session, Dispatcher $events)
    {
        $this->ysession = $session;
        $this->yinstance = sprintf('%s.%s', 'cart', 'shipping_extras');
        if($this->getYardExtra('shipping_price')){
            $this->shipping_price = (float) ($this->getYardExtra('shipping_price'));
        }

        if($this->getYardExtra('shipping_price_net')){
            $this->shipping_price_net = (float) ($this->getYardExtra('shipping_price_net'));
        }

        if($this->getYardExtra('shipping_tax_rate')){
            $this->shipping_tax_rate = (float) ($this->getYardExtra('shipping_tax_rate'));
        }

        if($this->getYardExtra('shipping_tax')){
            $this->shipping_tax = (float) ($this->getYardExtra('shipping_tax'));
        }

        if($this->getYardExtra('shipping_country_id')){
            $this->shipping_country_id =  $this->getYardExtra('shipping_country_id');
        }

        if($this->getYardExtra('shipping_is_for')){
            $this->shipping_is_for =  $this->getYardExtra('shipping_is_for');
        }
        if($this->getYardExtra('num_comp')){
            $this->num_comp = $this->getYardExtra('num_comp');
        }
        if($this->getYardExtra('user_tax_free')){
            $this->user_tax_free =  $this->getYardExtra('user_tax_free');
        }
        if($this->getYardExtra('user_reverse_charge')){
            $this->user_reverse_charge =  $this->getYardExtra('user_reverse_charge');
        }
        if($this->getYardExtra('user_country_id')){
            $this->user_country_id =  $this->getYardExtra('user_country_id');
        }
        if($this->getYardExtra('user_country')){
            $this->user_country =  $this->getYardExtra('user_country');
        }


        parent::__construct($session, $events);

        if(gettype($this->shipping_country_id) !== 'object' && $this->shipping_country_id == 0){
            $shippingCountry = ShippingCountry::first();
            if($shippingCountry){
                $this->shipping_country_id = $shippingCountry->id;
            }
        }

        if($this->shipping_price == 0){
            self::instance('shopping')->setShippingCountryWithPrice($this->shipping_country_id, $this->shipping_is_for);
        }
    }

    public static function getTaxRate()
    {
        return config('cart.tax');
    }
    
    public function putYardExtra($key, $value){

        $content = $this->getYContent();
        $content->put($key, $value);
        $this->ysession->put($this->yinstance, $content);
    }

    public function getYardExtra($key){
        $content = $this->getYContent();
        if ($content->has($key)){
            return $content->get($key);
        }
        return false;
    }

    public function getShippingCountryName(){

        $shippingCountry = ShippingCountry::find($this->shipping_country_id);
        if($shippingCountry && $shippingCountry->country){
            return $shippingCountry->country->getLocated();
        }
        return "";
    }
    public function getShippingCountryCountryId()
    {
        $shippingCountry = ShippingCountry::find($this->shipping_country_id);
        if($shippingCountry && $shippingCountry->country){
            return $shippingCountry->country->id;
        }
        return 1; //default DE
    }

    public function getShippingCountryId()
    {
        return $this->shipping_country_id;
    }


    public function getYContent()
    {
        if (is_null($this->ysession->get($this->yinstance))) {
            return new Collection([]);
        }
        return $this->ysession->get($this->yinstance);
    }


    public function reCalculateShippingPrice(){
        $this->calculateShippingPrice();
    }

    public function setShippingCountryWithPrice($shipping_country_id, $shipping_is_for = 'ot')
    {
        $this->shipping_country_id = $shipping_country_id;
        $this->putYardExtra('shipping_country_id', $shipping_country_id);

        $this->shipping_is_for = $shipping_is_for;
        $this->putYardExtra('shipping_is_for', $shipping_is_for);

        $this->calculateShippingPrice();

    }

    public function setUserPriceInfos($setUserPriceInfos = [])
    {
        $this->user_tax_free = $setUserPriceInfos['user_tax_free'];
        $this->putYardExtra('user_tax_free', $setUserPriceInfos['user_tax_free']);

        $this->user_reverse_charge = $setUserPriceInfos['user_reverse_charge'];
        $this->putYardExtra('user_reverse_charge', $setUserPriceInfos['user_reverse_charge']);

        $this->user_country_id = $setUserPriceInfos['user_country_id'];
        $this->putYardExtra('user_country_id', $setUserPriceInfos['user_country_id']);

        $this->user_country = Country::findOrFail($setUserPriceInfos['user_country_id']);
        $this->putYardExtra('user_country', $this->user_country);
    }

    public function getUserPriceInfos(){
        return [
            'user_tax_free' =>$this->user_tax_free,
            'user_reverse_charge' =>$this->user_reverse_charge,
            'user_country_id' =>$this->user_country_id,
        ];
    }

    public function getUserCountryId()
    {
        return $this->user_country_id;
    }

    public function getUserCountry()
    {
        return $this->user_country;
    }

    public function getUserTaxFree()
    {
        return $this->user_tax_free;
    }

    private function calculateShippingPrice(){

        $shippingCountry = ShippingCountry::find($this->shipping_country_id);
        if(!$shippingCountry){
            return;
        }
        $shipping = $shippingCountry->shipping;
        if($this->weight() == 0){
            $shipping_price = $shipping->shipping_prices->first();
            if(!$shipping_price){
                return;
            }
            $shipping_price->price = 0;
            $shipping_price->price_comp = 0;
        }else{
            //first by price
            $shipping_price = $this->shippingPriceByTotal($shipping->shipping_prices, $this->total(2, '.', ''));
            //sec by weight
            if(!$shipping_price){
                $shipping_price = $this->shippingPriceByWeight($shipping->shipping_prices, $this->weight());
            }
            //default
            if(!$shipping_price){
                $shipping_price = $shipping->shipping_prices->first();
            }
        }
        if($shipping_price){
            $price = $shipping_price->price;
            $this->num_comp = 0;
            if($this->shipping_is_for === 'me'){
                $price = $shipping_price->price_comp;
                $this->num_comp = $shipping_price->num_comp;

            }
            $this->shipping_price = $price;
            $this->shipping_tax_rate = $shipping_price->tax_rate;
            $this->shipping_price_net = round($price / ((100+$shipping_price->tax_rate) / 100), 2);
            $this->shipping_tax = round($price / (100+$shipping_price->tax_rate) * 100, 2);

            $this->putYardExtra('num_comp', $this->num_comp);
            $this->putYardExtra('shipping_price', $this->shipping_price);
            $this->putYardExtra('shipping_tax_rate', $this->shipping_tax_rate);
            $this->putYardExtra('shipping_tax', $this->shipping_tax);
            $this->putYardExtra('shipping_price_net', $this->shipping_price_net);
        }
    }

    private function shippingPriceByTotal($prices, $total){
        foreach ($prices as $price){
            if($price->total_from > 0 && $price->total_to > 0){
                if($total >= $price->total_from && $total <= $price->total_to){
                    return $price;
                }
            }
        }
        return false;
    }
    private function shippingPriceByWeight($prices, $weight){
        foreach ($prices as $price){
            if($price->weight_from > 0 && $price->weight_to > 0){
                if($weight >= $price->weight_from && $weight <= $price->weight_to){
                    return $price;
                }
            }
        }
        return false;
    }

    /**
     * @param null $decimals
     * @param null $decimalPoint
     * @param null $thousandSeperator
     * @return string
     */
    public function shipping($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        return $this->numberFormat($this->shipping_price, $decimals, $decimalPoint, $thousandSeperator);
    }

    public function shippingNet($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        return $this->numberFormat($this->shipping_price_net, $decimals, $decimalPoint, $thousandSeperator);
    }
    //
    private function shippingTax($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        return $this->numberFormat($this->shipping_tax, $decimals, $decimalPoint, $thousandSeperator);

    }

   /* private function subShipping($decimals = null, $decimalPoint = null, $thousandSeperator = null){
        $subShipping = $this->shipping_price_net
        return $this->numberFormat($subShipping, $decimals, $decimalPoint, $thousandSeperator);
    }*/
    //netto
    public function subtotalWithShipping($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        $subtotal = (float) $this->shipping_price_net + $this->subtotal(2, '.', '');
        return $this->numberFormat($subtotal, $decimals, $decimalPoint, $thousandSeperator);
    }


    public function taxWithShipping($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        if($this->user_tax_free){
            return $this->numberFormat(0, $decimals, $decimalPoint, $thousandSeperator);
        }
        $total = $this->totalWithShipping(2, '.', '');
        // $totalTax = (float) $this->tax(2, '.', '') + $this->shipping_tax;
         $totalTax = $this->subtotalWithShipping(2, '.', '');
        return $this->numberFormat(($total - $totalTax), $decimals, $decimalPoint, $thousandSeperator);
    }


    public function totalWithShipping($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        if($this->user_tax_free){
            $total = (float) ($this->subtotal(2, '.', '')) + $this->shipping_price_net;
        }else{
            $total = (float) ($this->total(2, '.', '')) + $this->shipping_price;
        }
      
        return $this->numberFormat($total, $decimals, $decimalPoint, $thousandSeperator);
    }

    /**
     * Get the total price of the items in the cart.
     *
     * @param int    $decimals
     * @param string $decimalPoint
     * @param string $thousandSeperator
     * @return string
     */
    public function weight($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        $content = $this->getContent();
        $total = $content->reduce(function ($total, CartItem $cartItem) {
            return $total + ($cartItem->options->weight ? ($cartItem->options->weight*$cartItem->qty) : 0);
        }, 0);

        return $total;
    }

    public function points()
    {
        $content = $this->getContent();
        $total = $content->reduce(function ($total, CartItem $cartItem) {
            return $total + ($cartItem->options->points ? ($cartItem->options->points * $cartItem->qty) : 0);
        }, 0);

        return $total;
    }

    public function compCount()
    {
        $content = $this->getContent();

        $count = parent::count();
        $comp_count = $content->reduce(function ($comp_count, CartItem $cartItem) {
            return $cartItem->options->comp ? $comp_count + 1 : $comp_count;
        }, 0);
        return $count-$comp_count;
    }
    /**
     * Get the total price of the items in the cart.
     *
     * @param int    $decimals
     * @param string $decimalPoint
     * @param string $thousandSeperator
     * @return string
     */
    public function total($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        $content = $this->getContent();
        $total = $content->reduce(function ($total, CartItem $cartItem) {
            return $total + ($cartItem->qty * $cartItem->price);
        }, 0);

        return $this->numberFormat($total, $decimals, $decimalPoint, $thousandSeperator);
    }

    /**
     * Get the total tax of the items in the cart.
     *
     * @param int    $decimals
     * @param string $decimalPoint
     * @param string $thousandSeperator
     * @return float
     */
    public function tax($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        $content = $this->getContent();

        $tax = $content->reduce(function ($tax, CartItem $cartItem) {
            $priceTax = $cartItem->price / (100 + $cartItem->taxRate) * $cartItem->taxRate;
            return $tax + ($cartItem->qty * $priceTax);
        }, 0);

        return $this->numberFormat($tax, $decimals, $decimalPoint, $thousandSeperator);
    }

    /**
     * Get the subtotal (total - tax) of the items in the cart.
     *
     * @param int    $decimals
     * @param string $decimalPoint
     * @param string $thousandSeperator
     * @return float
     */
    public function subtotal($decimals = null, $decimalPoint = null, $thousandSeperator = null)
    {
        $content = $this->getContent();

        $subTotal = $content->reduce(function ($subTotal, CartItem $cartItem) {
            $price_net = $cartItem->price / ((100 + $cartItem->taxRate) / 100);
            return $subTotal + ($cartItem->qty * $price_net);
        }, 0);

        return $this->numberFormat($subTotal, $decimals, $decimalPoint, $thousandSeperator);
    }


    public function getCartItemByProduct($product_id, $set_price='with'){
        if($product = Product::find($product_id)) {
            $image = "";
            if ($product->images->count()) {
                $image = $product->images->first()->slug;
            }
            $price = $product->price;
            if($set_price === 'with'){
                $price = $product->getPriceWith(false, true, $this->getUserCountry());
            }
            $cartItem = $this->getCartItem($product->id, $product->getLang('name'), 1, $price, ['image' => $image, 'slug' => $product->slug, 'weight' => $product->weight, 'points' => $product->points]);
            $content = $this->getContent();

            if ($content->has($cartItem->rowId)){
                return $content->get($cartItem->rowId);
            }
            return $cartItem;
        }
        return null;

    }


    public function getCartItem($id, $name = null, $qty = null, $price = null, array $options = []){
        if ($id instanceof Buyable) {
            $cartItem = CartItem::fromBuyable($id, $qty ?: []);
        } elseif (is_array($id)) {
            $cartItem = CartItem::fromArray($id);
        } else {
            $cartItem = CartItem::fromAttributes($id, $name, $price, $options);
        }
        return $cartItem;
    }

    public function destroy()
    {
        $this->ysession->remove($this->yinstance);
        parent::destroy();

    }

    public function rowPriceNet(CartItem $row, $decimals = null, $decimalPoint = null, $thousandSeperator = null){
        $price = round($row->price / ((100 + $row->taxRate) /100), 4);
        return $this->numberFormat($price, $decimals, $decimalPoint, $thousandSeperator);
    }

    public function rowSubtotalNet(CartItem $row, $decimals = null, $decimalPoint = null, $thousandSeperator = null){
        $price = round($row->price / ((100 + $row->taxRate) /100), 4);
        return $this->numberFormat(($price * $row->qty), $decimals, $decimalPoint, $thousandSeperator);
    }

    public function isPriceCurrency()
    {
        return ($this->user_country && $this->user_country->currency) ? true : false;
    }

    public function getPriceCurrencyUnit()
    {
        return ($this->user_country && $this->user_country->currency) ? $this->user_country->currency_unit : false;
    }

    public function convertCurrency($value = 0, $decimals = null, $decimalPoint = null, $thousandSeperator = null){
        if($this->isPriceCurrency()){
            $faktor = isset($this->user_country->currency_faktor) ? $this->user_country->currency_faktor : 1;
            $value = Util::reFormatNumber($value);
            return $this->numberFormat($value, $decimals, $decimalPoint, $thousandSeperator);
        }
        return '';

    }
    public function getCurrencyByKey($key = false, CartItem $row = null, $decimals = null, $decimalPoint = null, $thousandSeperator = null){
        
        if($this->isPriceCurrency()){
            $rNumber = 0;
            $faktor = isset($this->user_country->currency_faktor) ? $this->user_country->currency_faktor : 1;
            switch ($key) {
                case 'rowPriceNetCurrency':
                    if($row){
                        $price = round($row->price / ((100 + $row->taxRate) /100), 4);
                        $rNumber = $price * $faktor;
                    }
                    break;
                case 'rowSubtotalCurrency':
                        if($row){
                            $price = round($row->price / ((100 + $row->taxRate) /100), 4);
                            $rNumber = $price * $faktor * $row->qty;
                        }
                    break;
                case 'subtotal':
                        $rNumber = (float) ($this->subtotal(2, '.', '')) * $faktor;
                    break;
                case 'shippingNet':
                        $rNumber = (float) ($this->shippingNet(2, '.', '')) * $faktor;
                    break;     
                case 'subtotalWithShipping':
                        $rNumber = (float) ($this->subtotalWithShipping(2, '.', '')) * $faktor;
                    break;     
                case 'taxWithShipping':
                        $rNumber = (float) ($this->taxWithShipping(2, '.', '')) * $faktor;
                    break;     
                case 'totalWithShipping':
                    $rNumber = (float) ($this->totalWithShipping(2, '.', '')) * $faktor;
                    break;    
                case 'total':
                    $rNumber = (float) ($this->total(2, '.', '')) * $faktor;
                    break;     
                case 'shipping':
                    $rNumber = (float) ($this->shipping(2, '.', '')) * $faktor;
                    break;                                                     
            }
            return $this->numberFormat($rNumber, $decimals, $decimalPoint, $thousandSeperator);

        }
        return '';
    }

    public function getNumComp(){
        return $this->num_comp;
    }

    public function getCompProductBy($comp, $product_id=false){
        foreach ($this->content() as $row) {
            if($row->options->comp == $comp) {
                return $row->options->product_id;
            }
        }
        return false;
    }

    public function getContentByOrder(){
        $ret = [];
        $comp = [];
        foreach ($this->content() as  $row) {
            if($row->options->comp){
                $comp[100+$row->options->comp] = $row;
            }else{
                $ret[] = $row;
            }
        }
        ksort($comp);
        $ret = array_merge($ret, $comp);
        return $ret;
    }

    /**
     * Get the Formated number
     *
     * @param $value
     * @param $decimals
     * @param $decimalPoint
     * @param $thousandSeperator
     * @return string
     */
    protected function numberFormat($value, $decimals, $decimalPoint, $thousandSeperator)
    {
        if(is_null($decimals)){
            $decimals = is_null(config('cart.format.decimals')) ? 2 : config('cart.format.decimals');
        }
        if(is_null($decimalPoint)){
            $decimalPoint = is_null(config('cart.format.decimal_point')) ? '.' : config('cart.format.decimal_point');
        }
        if(is_null($thousandSeperator)){
            $thousandSeperator = is_null(config('cart.format.thousand_seperator')) ? ',' : config('cart.format.thousand_seperator');
        }

        return number_format($value, $decimals, $decimalPoint, $thousandSeperator);
    }
}