<?php
/**
 * This service file is part of item.
 *
 * @author   ctexthuang
 * @contact  ctexthuang@qq.com
 */

declare(strict_types=1);

namespace App\Service\Admin\Good;

use App\Constants\Common\GoodCode;
use App\Exception\ErrException;
use App\Model\Sku;
use App\Service\Admin\BaseService;
use App\Service\ServiceTrait\Common\OssTrait;
use Hyperf\Di\Annotation\Inject;

class SkuService extends BaseService
{
    use OssTrait;

    /**
     * @var Sku $skuModel
     */
    #[Inject]
    protected Sku $skuModel;

    /**
     * @return array
     */
    public function handle(): array
    {
        $limit = (int)$this->request->input('limit', 10);
        $spuId = (int)$this->request->input('spu_id');

        $list = $this->skuModel->where('spu_id',$spuId)->paginate($limit)->toArray();

        $imageIdArr = array_column($list['data'],'image_ids');
        $imageIds = array_unique(explode(',',implode(',',$imageIdArr)));
        $imageList = $this->getOssObjects($imageIds);

        foreach ($list['data'] as &$item) {
            $imageOneArr = [];
            foreach (explode(',',$item['image_ids']) as $imageId) {
                $imageOneArr[] = [
                    'id' => $imageId,
                    'url' => $imageList[$imageId]['url']
                ];
            }

            $item['image_list'] = $imageOneArr;
        }

        return $this->return->success('success', ['list' => $list]);
    }

    /**
     * @return array
     */
    public function add(): array
    {
        $spuId = $this->request->input('spu_id');

        $insertModel = new Sku();

        $imageIds = $this->request->input('image_ids');

        $this->updateOssObjects(explode(',',$imageIds));

        $insertModel->spu_id = $spuId;
        $insertModel->title = $this->request->input('title');
        $insertModel->price = $this->request->input('price');
        $insertModel->image_ids = $imageIds;
        $insertModel->param = $this->request->input('param','');
        $insertModel->extra = $this->request->input('extra','');
        $insertModel->total_stock = $this->request->input('stock');
//        $insertModel->surplus_stock = $this->request->input('stock');
        $insertModel->sales_num = 0;
        $insertModel->order_num = 0;
        $insertModel->cancel_num = 0;
        $insertModel->ahead_refund_num = 0;
        $insertModel->behind_refund_num = 0;
        $insertModel->saleable = $this->request->input('saleable');

        if (!$insertModel->save()) throw new ErrException('添加失败');

        //todo 生成缓存

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

    /**
     * @return array
     */
    public function edit(): array
    {
        $id = (int)$this->request->input('id');

        $skuInfo = $this->skuModel->getInfoById($id);

        if (empty($skuInfo)) throw new ErrException('原数据不存在，无法修改');

        $stock = $this->request->input('stock');
        $forceCleanStockCache = 0;
        if ($skuInfo->order_num > 0) { //已产生订单 修改库存需要强制删除库存缓存
            $forceCleanStockCache = 1;

            if ($skuInfo->total_stock < $stock) $skuInfo->total_stock = $stock;
            if ($skuInfo->total_stock > $stock) {
                $skuInfo->total_stock = $stock;
                if ($skuInfo->order_num >= $stock) throw new ErrException('库存不能小于已下单量');
            }
        }

        if ($skuInfo->order_num > 0 && $skuInfo->price != $this->request->input('price')) throw new ErrException('已有订单不可改价,退单后即可操作');
        else $skuInfo->price = $this->request->input('price');

        $requestOssIds = $this->request->input('image_ids');

        $updateOssIds = array_diff(explode(',',$requestOssIds), explode(',',$skuInfo->image_ids));
        $delOssIds = array_diff(explode(',',$skuInfo->image_ids), explode(',',$requestOssIds));

        if (!empty($updateOssIds)) $this->updateOssObjects($updateOssIds);
        if (!empty($delOssIds)) $this->updateOssObjectsDisable($delOssIds);

        if (!empty($updateOssIds) || !empty($delOssIds)) {
            $skuInfo->image_ids = $requestOssIds;
        }

        $skuInfo->param = $this->request->input('param','');
        $skuInfo->extra = $this->request->input('extra','');
        $skuInfo->total_stock = $this->request->input('stock');
        $skuInfo->saleable = $this->request->input('saleable');
        $skuInfo->title = $this->request->input('title');

        if (!$skuInfo->save()) throw new ErrException('修改失败');

        if ($forceCleanStockCache == 1) return $this->return->success();
        //todo 修改缓存

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

    /**
     * @return array
     */
    public function del(): array
    {
        $id = (int)$this->request->input('id');
        $skuInfo = $this->skuModel->getInfoById($id);

        if (empty($skuInfo)) throw new ErrException('数据已删除，无法修改');

        $skuInfo->is_del = GoodCode::SKU_IS_DELETE;

        if (!$skuInfo->save()) throw new ErrException('删除失败');

        //todo 删除缓存

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

    /**
     * @return array
     */
    public function view(): array
    {
        $id = (int)$this->request->input('id');
        $skuInfo = $this->skuModel->getInfoById($id);

        if (empty($skuInfo)) throw new ErrException('数据不存在');

        $imageIds = explode(',',$skuInfo->image_ids);

        $imageList = $this->getOssObjects($imageIds);

        $res = $skuInfo->toArray();

        $res['image_list'] = array_values($imageList);

        return $this->return->success('success',$res);
    }
}