<?php
/**
 * Niushop商城系统 - 团队十年电商经验汇集巨献!
 * =========================================================
 * Copy right 2019-2029 上海牛之云网络科技有限公司, 保留所有权利。
 * ----------------------------------------------
 * 官方网址: https://www.niushop.com
 * =========================================================
 */

namespace app\model\stock;


use addon\stock\model\stock\Stock;
use app\model\BaseModel;
use app\model\store\Store;
use app\model\storegoods\StoreGoods;

/**
 * 库存model  (公共的库存相关改动和查询)
 *
 * @author Administrator
 *
 */
class GoodsStock extends BaseModel
{

    /**
     * 商品直接设置库存权重最高(只允许商品数据发生变动时调用)
     * @param $params
     * @return array|int
     */
    public function changeGoodsStock($params)
    {
        $store_id = $params[ 'store_id' ] ?? 0;
        $site_id = $params[ 'site_id' ];

        $goods_sku_list = $params[ 'goods_sku_list' ] ?? [];

        //没有传递仓库id的话,就选取默认
        if ($store_id == 0 || !addon_is_exit('store')) {
            $store_model = new Store();
            $store_info = $store_model->getDefaultStore($site_id)[ 'data' ] ?? [];
            $store_id = $store_info[ 'store_id' ];
            $params[ 'store_id' ] = $store_id;
        }
        $is_exist = addon_is_exit('stock');
        if ($is_exist) {
            $stock_model = new Stock();
        }

        if (!empty($goods_sku_list)) {
            $goods_sku_list_1 = [];
            $goods_sku_list_2 = [];
            foreach ($goods_sku_list as $k => $v) {
                if ($is_exist && $v[ 'goods_class' ] == 1) {
                    $goods_sku_list_1[] = $v;
                } else {
                    if (in_array($v[ 'goods_class' ], [ 1, 2, 3, 4, 5, 6 ])) {
                        $goods_sku_list_2[] = $v;
                    }
                }
            }
            if (!empty($goods_sku_list_1)) {
                $params[ 'goods_sku_list' ] = $goods_sku_list_1;
                $result = $stock_model->setGoodsStock($params);
                if ($result[ 'code' ] < 0) {
                    return $result;
                }
            }
            if (!empty($goods_sku_list_2)) {
                $params[ 'goods_sku_list' ] = $goods_sku_list_2;
                $result = $this->setGoodsStock($params);
                if ($result[ 'code' ] < 0) {
                    return $result;
                }
            }
        } else {
            $goods_class = $params[ 'goods_class' ];
            //如果存在进销存的话生成入库单据
            if ($is_exist && $goods_class == 1) {
                $result = $stock_model->setGoodsStock($params);
            } else {//没有的话直接生成支付单据
                $result = $this->setGoodsStock($params);
            }
        }

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

    /**
     * 商品库存设置(主体永远是sku)
     * @param $params
     * @return array
     * @throws \think\db\exception\DbException
     */
    public function setGoodsStock($params)
    {
        $goods_sku_list = $params[ 'goods_sku_list' ] ?? [];

//        $site_id = $params['site_id'];
        $store_id = $params[ 'store_id' ] ?? 0;
        if ($store_id == 0 || !addon_is_exit('store')) {
            $store_model = new Store();
            $store_info = $store_model->getDefaultStore()[ 'data' ] ?? [];
            $store_id = $store_info[ 'store_id' ];
        }

        if (empty($goods_sku_list)) {
            $goods_id = $params[ 'goods_id' ] ?? 0;
            $sku_id = $params[ 'sku_id' ];
            $temp_stock = $params[ 'stock' ];
            $goods_sku_list = [
                [
                    'stock' => $temp_stock,
                    'goods_id' => $goods_id,
                    'sku_id' => $sku_id
                ]
            ];
        }
        foreach ($goods_sku_list as $k => $v) {
            $goods_id = $v[ 'goods_id' ] ?? 0;
            $sku_id = $v[ 'sku_id' ];
            $temp_stock = $v[ 'stock' ];//设置的新库存
            if ($temp_stock < 0)
                return $this->error([], '库存不能小于0');

            $condition = array (
//            ['goods_id', '=', $goods_id],
                [ 'store_id', '=', $store_id ],
                [ 'sku_id', '=', $sku_id ]
            );
            $data = array (
                'stock' => $temp_stock
            );
            $sku_info = model('goods_sku')->getInfo([ [ 'sku_id', '=', $sku_id ] ], 'sku_id, goods_id');
            if (empty($sku_info)) {
                return $this->error([], '找不到商品');
            }

            if ($goods_id == 0) {
                $goods_id = $sku_info[ 'goods_id' ];
            }
            $return_info = $this->isNotExistCreateStoreStock([ 'store_id' => $store_id, 'sku_id' => $sku_id, 'goods_id' => $goods_id ])[ 'data' ] ?? [];
            $stock_goods_sku_info = $return_info[ 'sku_info' ];
            $before_stock = $stock_goods_sku_info[ 'stock' ];
            $before_real_stock = $stock_goods_sku_info[ 'real_stock' ];//实际库存比较特殊,只算差值
            $diff_stock = $temp_stock - $before_stock;

            $sku_real_stock = $before_real_stock + $diff_stock;
            $data[ 'real_stock' ] = $sku_real_stock > 0 ? $sku_real_stock : 0;
            $res = model('store_goods_sku')->update($data, $condition);
            $goods_condition = array (
                [ 'goods_id', '=', $goods_id ],
                [ 'store_id', '=', $store_id ]
            );
            if ($diff_stock > 0) {
                model('store_goods')->setInc($goods_condition, 'stock', abs($diff_stock));
                model('store_goods')->setInc($goods_condition, 'real_stock', abs($diff_stock));
            } else {
                model('store_goods')->setDec($goods_condition, 'stock', abs($diff_stock));
                $stock_goods_info = $return_info[ 'goods_info' ];
                $before_goods_real_stock = $stock_goods_info[ 'real_stock' ];
                if (abs($diff_stock) > $before_goods_real_stock) {
                    $diff_stock = $before_goods_real_stock;
                }
                model('store_goods')->setDec($goods_condition, 'real_stock', abs($diff_stock));
            }
            //维护商品和sku表中库存的统计数据
            $this->setCommonGoodsSkuStock([ 'sku_id' => $sku_id, 'diff' => $diff_stock, 'store_id' => $store_id ]);
        }
        return $this->success();
    }

    /**
     * 减少库存(存在已经)
     * @param $params
     */
    public function decGoodsStock($params)
    {
//        $site_id = $params['site_id'];
        $store_id = $params[ 'store_id' ] ?? 0;
        $goods_sku_list = $params[ 'goods_sku_list' ] ?? [];
        if ($store_id == 0 || !addon_is_exit('store')) {
            $store_model = new Store();
            $store_info = $store_model->getDefaultStore()[ 'data' ] ?? [];
            $store_id = $store_info[ 'store_id' ];
        }
        $is_out_stock = $params[ 'is_out_stock' ] ?? 0;//是否扣除销售库存(销售状态下一般销售库存已经被扣除了)

        if (empty($goods_sku_list)) {
            $goods_id = $params[ 'goods_id' ] ?? 0;
            $sku_id = $params[ 'sku_id' ] ?? 1;
            $temp_stock = $params[ 'stock' ] ?? $params[ 'num' ];
            $goods_sku_list = [
                [
                    'stock' => $temp_stock,
                    'goods_id' => $goods_id,
                    'sku_id' => $sku_id
                ]
            ];
        }
        foreach ($goods_sku_list as $k => $v) {
            $goods_id = $v[ 'goods_id' ] ?? 0;
            $sku_id = $v[ 'sku_id' ];
            $temp_stock = $v[ 'stock' ] ?? $v[ 'num' ];
            $sku_info = model('goods_sku')->getInfo([ [ 'sku_id', '=', $sku_id ] ], 'goods_id,sku_name');
            if (empty($sku_info)) {
                return $this->error([], '找不到商品');
            }
            if ($goods_id == 0) {
                $goods_id = $sku_info[ 'goods_id' ];
            }
            $sku_name = $sku_info[ 'sku_name' ];
            $return_info = $this->isNotExistCreateStoreStock([ 'store_id' => $store_id, 'sku_id' => $sku_id, 'goods_id' => $goods_id ])[ 'data' ] ?? [];
            $sku_info = $return_info[ 'sku_info' ];
            $store_sku_stock = $sku_info[ 'real_stock' ];
 
            if ($store_sku_stock < $temp_stock) {
                return $this->error([], '产品' . $sku_name . '库存不足');
            }
            $before_stock = $sku_info[ 'stock' ];
            $before_real_stock = $sku_info[ 'real_stock' ];
            $sku_condition = array (
                [ 'sku_id', '=', $sku_id ],
                [ 'store_id', '=', $store_id ]
            );
            model('store_goods_sku')->setDec($sku_condition, 'real_stock', $temp_stock);
            if ($is_out_stock) {
                model('store_goods_sku')->setDec($sku_condition, 'stock', $temp_stock > $before_stock ? $before_stock : $temp_stock);
            }

            $goods_condition = array (
                [ 'goods_id', '=', $goods_id ],
                [ 'store_id', '=', $store_id ]
            );
            model('store_goods')->setDec($goods_condition, 'real_stock', $temp_stock);
            if ($is_out_stock) {
                $goods_info = $return_info[ 'goods_info' ];
                $before_goods_stock = $goods_info[ 'stock' ];
                model('store_goods')->setDec($goods_condition, 'stock', $temp_stock > $before_goods_stock ? $before_goods_stock : $temp_stock);
            }
            //维护商品和sku表中库存的统计数据
            $this->setCommonGoodsSkuStock([ 'sku_id' => $sku_id, 'diff' => -$temp_stock, 'store_id' => $store_id ]);
        }

        return $this->success();
    }

    /**
     * 增加库存
     * @param $params
     * @return array
     */
    public function incGoodsStock($params)
    {
        $goods_sku_list = $params[ 'goods_sku_list' ] ?? [];
        $goods_id = $params[ 'goods_id' ] ?? 0;
        $sku_id = $params[ 'sku_id' ];
//        $site_id = $params['site_id'];
        $store_id = $params[ 'store_id' ] ?? 0;
        if ($store_id == 0 || !addon_is_exit('store')) {
            $store_model = new Store();
            $store_info = $store_model->getDefaultStore()[ 'data' ] ?? [];
            $store_id = $store_info[ 'store_id' ];
        }
        if (empty($goods_sku_list)) {
            $goods_id = $params[ 'goods_id' ] ?? 0;
            $sku_id = $params[ 'sku_id' ];
            $temp_stock = $params[ 'stock' ] ?? $params[ 'num' ];
            $goods_sku_list = [
                [
                    'stock' => $temp_stock,
                    'goods_id' => $goods_id,
                    'sku_id' => $sku_id
                ]
            ];
        }
        foreach ($goods_sku_list as $k => $v) {
            $goods_id = $v[ 'goods_id' ] ?? 0;
            $sku_id = $v[ 'sku_id' ];
            $temp_stock = $v[ 'stock' ] ?? $v[ 'num' ];
            if ($goods_id == 0) {
                $sku_info = model('goods_sku')->getInfo([ [ 'sku_id', '=', $sku_id ] ], 'goods_id');
                if (empty($sku_info)) {
                    return $this->error([], '找不到商品');
                }
                $goods_id = $sku_info[ 'goods_id' ];
            }
            $return_info = $this->isNotExistCreateStoreStock([ 'store_id' => $store_id, 'sku_id' => $sku_id, 'goods_id' => $goods_id ])[ 'data' ] ?? [];

            $sku_condition = array (
                [ 'sku_id', '=', $sku_id ],
                [ 'store_id', '=', $store_id ]
            );

            model('store_goods_sku')->setInc($sku_condition, 'stock', $temp_stock);
            model('store_goods_sku')->setInc($sku_condition, 'real_stock', $temp_stock);

            $goods_condition = array (
                [ 'goods_id', '=', $goods_id ],
                [ 'store_id', '=', $store_id ]
            );
            model('store_goods')->setInc($goods_condition, 'stock', $temp_stock);
            model('store_goods')->setInc($goods_condition, 'real_stock', $temp_stock);
            //维护商品和sku表中库存的统计数据
            $this->setCommonGoodsSkuStock([ 'sku_id' => $sku_id, 'diff' => $temp_stock, 'store_id' => $store_id ]);
        }

        return $this->success();
    }

    /**
     * 设置总的商品库存(维护商品数据)
     * @param $params
     */
    public function setCommonGoodsSkuStock($params)
    {
        $sku_id = $params[ 'sku_id' ];
//        $diff = $params['diff'];
        $site_id = $params[ 'site_id' ] ?? 1;
        $store_model = new Store();
        $store_info = $store_model->getDefaultStore($site_id)[ 'data' ] ?? [];
        $default_store_id = $store_info[ 'store_id' ];
        $store_id = $params[ 'store_id' ];
        if ($store_id == $default_store_id) {
            $condition = array (
                [ 'sku_id', '=', $sku_id ]
            );
            $sku_info = model('goods_sku')->getInfo($condition, 'goods_id');
            if (empty($sku_info))
                return $this->error();
            $goods_id = $sku_info[ 'goods_id' ];
            $goods_condition = array (
                [ 'goods_id', '=', $goods_id ]
            );

            $store_good_model = new StoreGoods();
            $store_goods_info = $store_good_model->getStoreGoodsInfo([ [ 'goods_id', '=', $goods_id ], [ 'store_id', '=', $store_id ] ])[ 'data' ] ?? [];
            model('goods')->update([ 'goods_stock' => $store_goods_info[ 'stock' ] ?? 0, 'real_stock' => $store_goods_info[ 'real_stock' ] ?? 0 ], $goods_condition);
            $store_sku_goods_info = $store_good_model->getStoreGoodsSkuInfo([ [ 'sku_id', '=', $sku_id ], [ 'store_id', '=', $store_id ] ])[ 'data' ] ?? [];
            model('goods_sku')->update([ 'stock' => $store_sku_goods_info[ 'stock' ] ?? 0, 'real_stock' => $store_sku_goods_info[ 'real_stock' ] ?? 0 ], $condition);
        }

        //        $diff_stock = abs($diff);
//        if ($diff > 0) {
//            model('goods_sku')->setInc($condition, 'stock', $diff_stock);
//            model('goods')->setInc($goods_condition, 'goods_stock', $diff_stock);
//        } else if($diff < 0){
//            model('goods_sku')->setDec($condition, 'stock', $diff_stock);
//            model('goods')->setDec($goods_condition, 'goods_stock', $diff_stock);
//        }
        return $this->success();
    }

    /**
     * 如果库存数据不存在则创建
     * @param $params
     */
    public function isNotExistCreateStoreStock($params)
    {
        $sku_id = $params[ 'sku_id' ];
        $store_id = $params[ 'store_id' ];
        $goods_id = $params[ 'goods_id' ];//经过校验的数据,无需再验
        $sku_store_condition = array (
            [ 'sku_id', '=', $sku_id ],
            [ 'store_id', '=', $store_id ]
        );
        $sku_info = model('store_goods_sku')->getInfo($sku_store_condition);
        //不存在就创建
        if (empty($sku_info)) {
            $data = array (
                'goods_id' => $goods_id,
                'sku_id' => $sku_id,
                'store_id' => $store_id,
                'create_time' => time()
            );
            model('store_goods_sku')->add($data);
            $sku_info = model('store_goods_sku')->getInfo($sku_store_condition);
        }
        $sku_store_condition = array (
            [ 'goods_id', '=', $goods_id ],
            [ 'store_id', '=', $store_id ]
        );
        $goods_info = model('store_goods')->getInfo($sku_store_condition);
        //不存在就创建
        if (empty($goods_info)) {
            $data = array (
                'goods_id' => $goods_id,
                'store_id' => $store_id,
                'create_time' => time()
            );
            model('store_goods')->add($data);
            $goods_info = model('store_goods')->getInfo($sku_store_condition);
        }

        if (!empty($sku_info)) {
            if (isset($sku_info[ 'stock' ])) {
                $sku_info[ 'stock' ] = numberFormat($sku_info[ 'stock' ]);
            }
            if (isset($sku_info[ 'sale_num' ])) {
                $sku_info[ 'sale_num' ] = numberFormat($sku_info[ 'sale_num' ]);
            }
            if (isset($sku_info[ 'real_stock' ])) {
                $sku_info[ 'real_stock' ] = numberFormat($sku_info[ 'real_stock' ]);
            }
        }

        if (!empty($goods_info)) {
            if (isset($goods_info[ 'stock' ])) {
                $goods_info[ 'stock' ] = numberFormat($goods_info[ 'stock' ]);
            }
            if (isset($goods_info[ 'sale_num' ])) {
                $goods_info[ 'sale_num' ] = numberFormat($goods_info[ 'sale_num' ]);
            }
            if (isset($goods_info[ 'real_stock' ])) {
                $goods_info[ 'real_stock' ] = numberFormat($goods_info[ 'real_stock' ]);
            }
        }

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

    /**
     * 修改商品后调用商品库存变更
     * @param array $data
     */
    public function editGoodsChangeStock(array $param)
    {
        $sku_list = model('goods_sku')->getList([ [ 'goods_id', '=', $param[ 'goods_id' ] ], [ 'site_id', '=', $param[ 'site_id' ] ] ], 'goods_id,sku_id,stock,site_id,goods_class');
        if (empty($sku_list)) return $this->error();

        foreach ($sku_list as $sku_item) {
            $sku_item[ 'stock' ] = numberFormat($sku_item[ 'stock' ]);
            $sku_item[ 'user_info' ] = $param[ 'user_info' ] ?? [];
            $this->changeGoodsStock($sku_item);
        }
        return $this->success();
    }

    /**
     * 核验可能不存在的sku门店数据,并校正数据(单个商品解决方案)
     * @param $params
     */
    public function checkExistGoodsSku($params)
    {
        $goods_id = $params[ 'goods_id' ];
        $goods_condition = array (
            [ 'goods_id', '=', $goods_id ]
        );
        $sku_ids = model('goods_sku')->getColumn($goods_condition, 'sku_id');
        $store_sku_condition = array (
            [ 'goods_id', '=', $goods_id ],
            [ 'sku_id', 'not in', $sku_ids ]
        );
        //被废弃的门店sku
        $store_sku_list = model('store_goods_sku')->getList($store_sku_condition, 'store_id, sum(stock) as stock, sum(real_stock) as real_stock', '', '', [], 'store_id');
        if (empty($store_sku_list))
            return $this->success();

        $stock = 0;
        $real_stock = 0;
        foreach ($store_sku_list as $k => $v) {
            $store_id = $v[ 'store_id' ];
            $item_stock = numberFormat($v[ 'stock' ]);
            $item_real_stock = numberFormat($v[ 'real_stock' ]);
            $item_store_goods_condition = $goods_condition;
            $item_store_goods_condition[] = [ 'store_id', '=', $store_id ];
            $item_store_goods_info = model('store_goods')->getInfo($item_store_goods_condition, 'stock, real_stock');
            $new_item_stock = $item_store_goods_info[ 'stock' ] - $item_stock;
            $new_item_real_stock = $item_store_goods_info[ 'real_stock' ] - $item_real_stock;

            model('store_goods')->update([
                'stock' => $new_item_stock < 0 ? 0 : $new_item_stock,
                'real_stock' => $new_item_real_stock < 0 ? 0 : $new_item_real_stock
            ], $item_store_goods_condition);
            $stock += $item_stock;
            $real_stock += $item_real_stock;
        }
        model('store_goods_sku')->delete($store_sku_condition);

        $goods_info = model('goods')->getInfo($goods_condition, 'goods_stock, real_stock');
        $goods_stock = $goods_info[ 'goods_stock' ] - $stock;
        $goods_real_stock = $goods_info[ 'real_stock' ] - $real_stock;
        model('goods')->update([
            'stock' => $goods_stock < 0 ? 0 : $goods_stock,
            'real_stock' => $goods_real_stock < 0 ? 0 : $goods_real_stock
        ], $goods_condition);
        return $this->success();
    }
}