<?php

namespace App\Endpoint\Api\Http\Controllers\Product;

use App\Endpoint\Api\Http\Controllers\Controller;
use App\Endpoint\Api\Http\Resources\CouponResource;
use App\Endpoint\Api\Http\Resources\ProductSkuTinyResource;
use App\Helpers\Paginator;
use App\Models\ProductPart;
use App\Models\ProductPartSpu;
use Illuminate\Http\Request;

class PartController extends Controller
{
    /**
     * 分区商品
     *
     * @param \Illuminate\Http\Request $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function index(Request $request)
    {
        $part = null;

        if (filled($key = $request->query('part'))) {
            $part = ProductPart::where('key', $key)->first();
        }

        $paginator = ProductPartSpu::with('spu:id,name,cover,sell_price,vip_price,market_price')
                                    ->when($part, function ($query, $part) {
                                        $query->where('part_id', $part->id);
                                    }, function ($query) {
                                        $query->whereRaw('1!=1');
                                    })
                                    ->latest('sort')
                                    ->simplePaginate(Paginator::resolvePerPage('per_page', 20, 50));

        return ProductSkuTinyResource::collection(
            $paginator->through(function ($item) {
                return $item->spu;
            })
        );
    }

    public function coupons(Request $request)
    {
        $part = null;
        if (filled($partKey = $request->query('part'))) {
            $part = ProductPart::where('key', $partKey)->first();
        }

        return response()->json([
            'coupons'=> $part ? CouponResource::collection($part->getCoupons()->get()) : [],
            'description' => $part?->description,
        ]);
    }
}