<?php

namespace App\Http\Controllers;

use App\Models\Cart;
use App\Models\Goods;
use App\Models\GoodsParams;
use Auth;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\View;

class CartController extends Controller
{

    public function __construct(Request $request)
    {
        $this->middleware('auth');
        View::share('nav', 1);
    }

    public function index(Request $request)
    {
        $lists = Cart::mine()->orderBy('id', 'desc')->get();
        $carts = [];
        foreach ($lists as $cart) {
            if ($cart->params->stock < 1) {
                $cart->delete();
            } else {
                if ($cart->number > $cart->params->stock) {
                    $cart->number = $cart->params->stock;
                    $cart->save();
                }
                $carts[] = $cart;
            }
        }
        $recommends = Goods::where('status', 1)->where('is_recommend', 1)->take(6)->orderBy('created_at', 'desc')->get();
        return view('cart.index', compact('carts', 'recommends'));
    }

    public function setnum(Request $request)
    {
        $cart         = Cart::find($request->id);
        $cart->number = $request->number;
        $cart->save();
    }

    public function sure(Request $request)
    {
        $data = array();
        foreach (explode(',', $request->cart_id) as $key => $value) {
            $cart = Cart::find($value);
            if ($cart) {
                $data['details'][0][$value]['cart_id']   = $value;
                $data['details'][0][$value]['params_id'] = $cart->params_id;
                $data['details'][0][$value]['number']    = $cart->number;
            }
        }
        $data['item']['id']   = 0;
        $data['item']['type'] = 'MEMBER';
        return redirect()->route('orders.create', $data);

    }

    public function delete(Request $request)
    {
        $id   = $request->id;
        $cart = Cart::find($id);
        if ($cart->delete()) {
            return $this->success('删除成功');
        } else {
            return $this->error('删除失败');
        }
    }

    //加入购物车
    public function store(Request $request)
    {
        if (Cart::where('user_id', Auth::id())->count() == 99) {
            return ['code' => 0, 'msg' => '您的购物车商品数量已达上限99个'];
        }
        foreach ($request->details as $key => $details) {
            foreach ($details as $detail) {
                $user_id = Auth::id();
                $result  = Cart::where(['user_id' => $user_id, 'params_id' => $detail['params_id']])->first();
                $params  = GoodsParams::find($detail['params_id']);
                if ($result) {
                    $result->number += $detail['number'];
                    $result->save();
                } else {
                    $result = Cart::create([
                        'user_id'   => Auth::id(),
                        'params_id' => $detail['params_id'],
                        'goods_id'  => $params->goods_id, //保存goods_id是为了下架商品时，删除购物车
                        'number'    => $detail['number'],
                    ]);
                }
            }

        }

        if ($result) {
            return $this->success('成功加入购物车');
        } else {
            return $this->error('加入购物车失败');
        }

    }
}