<?php

namespace App\Http\Controllers\Api;
use App\Common\ProductStatus;
use App\Http\Controllers\Controller;
use App\Models\AgentProduct;
use App\Models\UserFav;
use Illuminate\Support\Facades\Storage;

/**
 * 代理商产品
 * Class AgentProductController
 * @package App\Http\Controllers\Api
 */
class AgentProductController extends Controller
{
	// 代理商产品列表
	public function index()
	{
		$category_id = request()->input('category_id');
		if ($category_id) {
			$where['category_id'] = $category_id;
		}

		$where['agent_id'] = $this->agent_id;

		$list = AgentProduct::list()->where($where)->simplePaginate();

		return $this->success($this->paginatePicAddHost($list));
	}

	// 产品详情
	public function show()
	{
		$id = (int)request()->input('id');

		// TODO 优惠券查询待优化
		$agent_product = AgentProduct::query()
			->with('product:id,title,pictures,know,stock,content')
			->with('coupon:tag,agent_product_id')
			->with('fav:agent_product_id')
			->whereHas('product', function ($query) {
				return $query->where('status', ProductStatus::ON_SALE)->where('stock', '>', 0);
			})
			->where('stock', '>', 0)
			->firstWhere(['id' => $id, 'agent_id' => $this->agent_id, 'status' => ProductStatus::ON_SALE]);

		if (!$agent_product) {
			return $this->error('产品不存在或已下架');
		}

		$prefix = Storage::disk('public')->url('');
		$agent_product->product->pictures = array_map(fn($item) => ($prefix . $item), $agent_product->product->pictures);

		$agent_product->is_collect = !is_null($agent_product->fav); //判断是否收藏
		//计算折扣
		if ($agent_product->price < $agent_product->original_price) {
			$agent_product->cost = round($agent_product->price / $agent_product->original_price * 10, 1);
		} else {
			$agent_product->cost = '';
		}

		unset($agent_product->agent_id, $agent_product->status, $agent_product->deleted_at);
		return $this->success($agent_product);
	}

	// 猜你喜欢
	public function guessLike()
	{
		// TODO 此处需要再优化排序规则，并增加广告功能
		return $this->index();
	}

	//【我的】页面下方推荐
	public function recommendList()
	{
		//TODO 推荐数据暂时使用产品列表，后期需要通过后台设置获取或根据用户购买过的关键词获取
		return $this->index();
	}

	//人气爆款列表
	public function hotList()
	{
		//TODO 具体排序规则，后期再做修改
		return $this->index();
	}

	//分页列表产品图片加域名
	private function paginatePicAddHost($list)
	{
		if (!$list->isEmpty()) {
			$prefix = Storage::disk('public')->url('');
			foreach ($list->items() as $k=>&$v) {
				$v->product->pictures = array_map(fn($item) => ($prefix . $item), $v->product->pictures);
			}
		}
		return $list;
	}
}