<?php
/**
 * SaaSMall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.gobuysaas.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;
use think\facade\Db;

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

    public function addStoreGoods($store_ids, $goods_id, $params)
    {
        $is_exist = addon_is_exit('stock');//独立库存系统
        if ($is_exist) {
            $stock_model = new Stock();
        }
        $goods_sku_list = $params['goods_sku_list'] ?? [];
        $goods_sku_list_1 = [];
        $goods_sku_list_2 = [];
        if (!empty($goods_sku_list)) {
            foreach ($goods_sku_list as $k => $v) {
                if ($is_exist && $v['goods_class'] == 1) { //实物库存
                    $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)) {//库存独立插件目前未使用
                $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)) { //无库存插件
                $sku_infos = model('goods_sku')->getList([['sku_id', 'in', array_column($goods_sku_list, 'sku_id')]], 'sku_id, goods_id,stock,sku_name,price,cost_price');
                $goodsInfo = model('goods')->getInfo([['goods_id', '=', $goods_id]], 'price,goods_stock,goods_state');
                $store_goods = [];
                $store_sku_goods = [];
                foreach ($store_ids as $store_id) {
                    $goodsArr = [
                        'goods_id' => $goods_id,
                        'store_id' => $store_id,
                        'price' => $goodsInfo['price'],
                        'status' => $goodsInfo['goods_state'],
                        'stock' => $goodsInfo['goods_stock'],
                        'create_time' => time()
                    ];
                    $store_goods[] = $goodsArr;
                    foreach ($sku_infos as $items) {
                        $goods_sku = [
                            'sku_id' => $items['sku_id'],
                            'price' => $items['price'],
                            'stock' => $items['stock'],
                            'cost_price' => $items['cost_price']
                        ];
                        $store_sku_goods[] = array_merge($goods_sku, $goodsArr);
                    }
                }
                model('store_goods')->addList($store_goods);//添加门店商品
                model('store_goods_sku')->addList($store_sku_goods);//添加门店商品
            }
        }
        return $this->success();
    }


    /**
     * 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'] ?? [];
            if (empty($store_info)) return $this->error(-1, '请添加默认门店');
            $store_id = $store_info['store_id'];
            $params['store_id'] = $store_id;
        }
        $is_exist = addon_is_exit('stock');//独立库存系统
        if ($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) { //实物库存
                    $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)) {//库存独立插件
                $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)) { //无库存插件
                $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'] ?? [];
        $store_id = $params['store_id'] ?? 0;
        if ($store_id > 0 && addon_is_exit('store')) {
            if (empty($goods_sku_list)) { //如果无库存
                $goods_id = $params['goods_id'] ?? 0;
                $sku_id = $params['sku_id'];
                $temp_stock = $params['stock'];
                $site_id = $params['site_id'];
                $goods_sku_list = [
                    [
                        'stock' => $temp_stock,
                        'goods_id' => $goods_id,
                        'sku_id' => $sku_id,
                        'site_id' => $site_id
                    ]
                ];
            }
            $sku_infos = model('goods_sku')->getColumn([['sku_id', 'in', array_column($goods_sku_list, 'sku_id')]], 'sku_id, goods_id,stock,sku_name,price,discount_price', '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(
                    ['store_id', '=', $store_id],
                    ['sku_id', '=', $sku_id]
                );
                $data = array(
                    'stock' => $temp_stock
                );
                if (!isset($sku_infos[$sku_id])) {
                    return $this->error([], '找不到商品');
                } else {
                    $sku_info = $sku_infos[$sku_id];
                }
                if ($goods_id == 0) {
                    $goods_id = $sku_info['goods_id'];
                }
                //验证门店SKU商品库存
                $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']; //当前门店产品库存
                $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; //库存差值
                $sku_real_stock = $before_real_stock + $diff_stock;
                $data['real_stock'] = $sku_real_stock > 0 ? $sku_real_stock : 0;
                model('store_goods_sku')->update($data, $condition);
                $goods_condition = array(
                    ['goods_id', '=', $goods_id],
                    ['store_id', '=', $store_id]
                );
                if ($diff_stock > 0) {
                    Db::name('store_goods')->where($goods_condition)->update(
                        [
                            'stock' => Db::raw('stock+' . abs($diff_stock)),
                            'real_stock' => Db::raw('real_stock+' . abs($diff_stock))
                        ]);
                } else {
                    $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 = $before_goods_real_stock;
                    }
                    Db::name('store_goods')->where($goods_condition)->update(
                        [
                            'stock' => Db::raw('stock-' . abs($diff_stock)),
                            'real_stock' => Db::raw('real_stock-' . abs($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,
//                    'site_id' => $params['site_id']
//                ]);
            }
        }
        return $this->success();
    }

    /**
     * 减少库存(存在已经)
     * @param $params
     */
    public function decGoodsStock($params)
    {
        $store_id = $params['store_id'] ?? 0;
        $goods_sku_list = $params['goods_sku_list'] ?? [];
        if ($store_id > 0 && addon_is_exit('store')) {
            $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'];
                $temp_stock = $params['stock'] ?? $params['num'];
                $goods_sku_list = [
                    [
                        'site_id' => $params['site_id'],
                        'stock' => $temp_stock,
                        'goods_id' => $goods_id,
                        'sku_id' => $sku_id
                    ]
                ];
            }
            $sku_infos = model('goods_sku')->getColumn([['sku_id', 'in', array_column($goods_sku_list, 'sku_id')]], 'sku_id, goods_id,stock,sku_name', '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 = $sku_infos[$v['sku_id']] ?? null;
                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'];
                $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, 'site_id' => $params['site_id']]);
            }
        }
        return $this->success();
    }

    /**
     * 增加库存
     * @param $params
     * @return array
     */
    public function incGoodsStock($params)
    {
        $goods_sku_list = $params['goods_sku_list'] ?? [];
        $store_id = $params['store_id'] ?? 0;
        if ($store_id > 0 && addon_is_exit('store')) {
            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,
                        'site_id' => $params['site_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'];
                }
                    $this->isNotExistCreateStoreStock(['store_id' => $store_id, 'sku_id' => $sku_id, 'goods_id' => $goods_id])['data'] ?? [];
                $sku_condition = array(
                    ['sku_id', '=', $sku_id],
                    ['store_id', '=', $store_id]
                );
                Db::name('store_goods_sku')->where($sku_condition)->update(
                    [
                        'stock' => Db::raw('stock+' . abs($temp_stock)),
                        'real_stock' => Db::raw('real_stock+' . abs($temp_stock))
                    ]);
                $goods_condition = array(
                    ['goods_id', '=', $goods_id],
                    ['store_id', '=', $store_id]
                );
                Db::name('store_goods')->where($goods_condition)->update(
                    [
                        'stock' => Db::raw('stock+' . abs($temp_stock)),
                        'real_stock' => Db::raw('real_stock+' . abs($temp_stock))
                    ]);
            }
        } else {
            if (empty($goods_sku_list)) {
                $goods_id = $params['goods_id'] ?? 0;
                $sku_id = $params['sku_id'];
                $temp_stock = $params['stock'] ?? $params['num'];
                $sku_condition = array(['sku_id', '=', $sku_id]);
                Db::name('goods_sku')->where($sku_condition)->update(
                    [
                        'stock' => Db::raw('stock+' . abs($temp_stock)),
                        'real_stock' => Db::raw('real_stock+' . abs($temp_stock))
                    ]);
                $goods_condition = array(
                    ['goods_id', '=', $goods_id]
                );
                Db::name('goods')->where($goods_condition)->update(
                    [
                        'stock' => Db::raw('stock+' . abs($temp_stock)),
                        'real_stock' => Db::raw('real_stock+' . abs($temp_stock))
                    ]);
            }
        }
        return $this->success();
    }

    /**
     * 设置总的商品库存(维护商品数据)
     * 默认库存与默认店铺店铺一致
     * @param $params
     */
    public function setCommonGoodsSkuStock($params)
    {
        $sku_id = $params['sku_id'];
        $store_model = new Store();
        $store_info = $store_model->getDefaultStore($params['site_id'])['data'] ?? [];
        $default_store_id = $store_info['store_id']; //当前默认店铺
        $store_id = $params['store_id'];
        if ($store_id == $default_store_id) {
            $condition = array(
                ['site_id', '=', $params['site_id']],
                ['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'] ?? [];
            $store_sku_goods_info = $store_good_model->getStoreGoodsSkuInfo([['sku_id', '=', $sku_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);
            model('goods_sku')->update(['stock' => $store_sku_goods_info['stock'] ?? 0, 'real_stock' => $store_sku_goods_info['real_stock'] ?? 0], $condition);
        }
        return $this->success();
    }

    /**
     * 检查门店库存数据
     * 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();
    }


    /***
     * 验证商品sku库存总结
     * @param $params
     * @return void
     */
    public function checkGoodsSkuStock($params)
    {
        $goods_id = $params['goods_id'];
        $goods_condition = array(
            ['goods_id', '=', $goods_id]
        );
        $sku_list = model('goods_sku')
            ->getList($goods_condition, 'sum(stock) as stock, sum(real_stock) as real_stock', '', '', [], 'goods_id');
        if (!empty($sku_list)) {
            model('goods')->update(['goods_stock' => $sku_list[0]['stock'] ?? 0, 'real_stock' => $sku_list[0]['real_stock'] ?? 0], $goods_condition);
        }
    }
}