<?php

namespace App\Http\Controllers;

use App\Models\Category;
use App\Models\Goods;
use Auth;
use Illuminate\Http\Request;

class GoodsController extends Controller
{
    public function __construct(Request $request)
    {
        view()->share('nav', 1);
    }

    public function show(Goods $good)
    {
        $params = $good->params()->where('stock', '>', 0)->orderBy('price', 'asc')->get();
        $first  = $good->params()->orderBy('original', 'asc')->first();
        $user   = Auth::user();
        return view('goods.show', compact('good', 'params', 'user', 'first'));
    }

    public function category(Request $request)
    {
        $category_id = $request->category_id ?? '';
        if ($category_id) {
            $category = Category::find($category_id);
        } else {
            $category = '';
        }

        $categorys = Category::where('parent_id', 0)->where('type', 'goods')->get();

        return view('goods.category', compact('categorys', 'category', 'category_id'));
    }

    public function lists(Request $request)
    {
        $category_id = $request->get('category_id', '');
        $title       = $request->get('title', '');
        $page        = $request->get('page', '');
        $price       = $request->get('price', '');
        $sold        = $request->get('sold', '');

        $goods = Goods::where('status', 1)
            ->when($category_id, function ($query) use ($category_id) {
                $ids = Category::where('id', $category_id)->orWhere('parent_id', $category_id)->pluck('id');
                return $query->whereIn('category_id', $ids);
            })
            ->when($title, function ($query) use ($title) {
                return $query->where('title', 'like', "%$title%");
            })
            ->when($price, function ($q) use ($price) {return $q->orderBy('price', $price);})
            ->when($sold, function ($q) use ($sold) {return $q->orderBy('sold', $sold);})
            ->orderBy('sort', 'asc')
            ->orderBy('created_at', 'desc')
            ->paginate(10);

        if ($page > 1) {
            if ($goods->count() > 0) {
                $html = response(view('goods.more', compact('goods')))->getContent();
                return $this->success($html);
            } else {
                return $this->error('已经到最后一页');
            }
        }

        $parent_id = 0;

        $category    = '';
        $app_title   = '商品列表';
        $parent_cate = '';
        if ($category_id) {
            $parent_cate = $category = Category::find($category_id);
            if ($category->parent_id) {
                $app_title   = $category->parent->title . '--' . $category->title;
                $parent_cate = $category->parent;
                $parent_id   = $parent_cate->id;
            } else {
                $parent_id = $category->id;
                $app_title = $category->title;
            }
        }
        $categorys = Category::where('parent_id', $parent_id)->where('type', 'goods')->get();

        view()->share('app_title', $app_title);
        return view('goods.lists', compact('goods', 'categorys', 'sold', 'price', 'category_id', 'title', 'parent_cate'));
    }

    //收藏
    public function favorite(Goods $goods)
    {
        $user = Auth::user();
        if (!$user) {
            return $this->error('请登录后在进行此操作', route('login'));
        }
        if ($user->hasFavorited($goods)) {
            $result = $user->unfavorite($goods);
            $text   = '取消收藏';
        } else {
            $result = $user->favorite($goods);
            $text   = '收藏';
        }

        if ($result) {
            return $this->success($text . '成功', route('goods.show', $goods));
        } else {
            return $this->error($text . '失败');
        }
    }
}