<?php

namespace app\admin\logic;

use app\model\CommonModel;
use app\model\GoodModel;
use app\model\InventoryShoppingModel;
use think\Exception;
use think\exception\ValidateException;
use think\facade\Db;
use think\response\Json;

class InventoryShoppingLogic extends BaseLogic
{

    //获取商城商品库存列表
    public static function list(array $data = []): Json
    {
        $db = InventoryShoppingModel::alias('a')
            ->leftJoin('good b', 'b.id=a.good_id AND b.is_del=' . CommonModel::$del_normal)
            ->leftJoin('unit c', 'c.id=b.unit_id AND c.is_del=' . CommonModel::$del_normal);

        if ($data['good_name'] != '') $db = $db->whereLike('a.good_name', '%' . $data['good_name'] . '%');
        if (($data['inventory_start'] != '') && ($data['inventory_end'] != '')) $db = $db->whereBetween('a.inventory', [$data['inventory_start'], $data['inventory_end']]);


        $count = $db->count('a.id');

        $list = $db->field('a.*,b.good_cover_img,b.moq,b.step,b.type,b.price,b.good_remark,c.unit')
            ->page($data['page'], $data['size'])
            ->order(['a.id' => 'desc'])
            ->select()
            ->toArray();

        return json_show(CommonModel::$success, '获取商城商品库存列表成功', ['count' => $count, 'list' => $list]);
    }

    //添加商城商品库存
    public static function add(array $data = []): Json
    {
        Db::startTrans();
        try {

            $good_list = GoodModel::where(['is_del' => CommonModel::$del_normal, 'type' => GoodModel::$type_shopping])
                ->whereIn('id', array_column($data['list'], 'good_id'))
                ->column('id,good_code,good_name', 'id');

            if (empty($good_list)) throw new Exception('该商品不存在');

            $rs = InventoryShoppingModel::field('id,good_code')
                ->whereIn('good_id', array_column($good_list, 'id'))
                ->findOrEmpty()
                ->toArray();
            if (!empty($rs)) throw new Exception($rs['good_code'] . '该商城商品库存已存在，不能重复添加');

            $date = date('Y-m-d H:i:s');
            $inventory = array_column($data['list'], 'inventory', 'good_id');

            foreach ($good_list as $good) {
                $inventory_shopping_id = Db::name('inventory_shopping')
                    ->insertGetId([
                        'good_id' => $good['id'],
                        'good_code' => $good['good_code'],
                        'good_name' => $good['good_name'],
                        'inventory' => $inventory[$good['id']] ?? 0,
                        'addtime' => $date,
                        'updatetime' => $date,
                    ]);

                Db::name('inventory_shopping_log')->insert([
                    'inventory_shopping_id' => $inventory_shopping_id,
                    'before_inventory' => 0,
                    'after_inventory' => $inventory[$good['id']] ?? 0,
                    'good_id' => $good['id'],
                    'good_code' => $good['good_code'],
                    'good_name' => $good['good_name'],
                    'source' => CommonModel::$source_admin,
                    'createrid' => self::$uid,
                    'creater' => self::$uname,
                    'addtime' => $date,
                ]);

            }

            Db::commit();

            return json_show(CommonModel::$success, '添加商城商品库存成功');

        } catch (Exception $exception) {
            Db::rollback();
            return json_show(CommonModel::$error_param, '添加商城商品库存失败，' . $exception->getMessage());
        }

    }

    //获取商城商品库存详情
    public static function read(int $id = 0): Json
    {
        $res = InventoryShoppingModel::alias('a')
            ->field('a.*,b.good_cover_img,b.moq,b.step,b.type,b.price,b.good_banner_img,b.good_img,b.good_param,b.good_remark,c.unit,b.status as good_status')
            ->leftJoin('good b', 'b.id=a.good_id AND b.is_del=' . CommonModel::$del_normal)
            ->leftJoin('unit c', 'c.id=b.unit_id AND c.is_del=' . CommonModel::$del_normal)
            ->withAttr('good_banner_img', function ($val) {
                return explode(',', $val);
            })->withAttr('good_img', function ($val) {
                return explode(',', $val);
            })->withAttr('good_param', function ($val) {
                return json_decode($val);
            })
            ->where(['a.id' => $id])
            ->findOrEmpty()
            ->toArray();


        if (empty($res)) throw new ValidateException('该商城商品库存为空');

        return json_show(CommonModel::$success, '获取商城商品库存详情成功', $res);
    }

    //编辑商城商品库存
    public static function edit(array $data = []): Json
    {
        Db::startTrans();
        try {

            $rs = InventoryShoppingModel::field(true)
                ->lock(true)
                ->where(['id' => $data['id']])
                ->findOrEmpty();

            if ($rs->isEmpty()) throw new Exception('该商城商品库存不存在');

            $date = date('Y-m-d H:i:s');

            $inventory = bcadd($rs->inventory, bcmul($data['flag'], $data['number']));

            if ($inventory < 0) throw new Exception('最终库存数少于0');

            Db::name('inventory_shopping_log')->insert([
                'inventory_shopping_id' => $data['id'],
                'before_inventory' => $rs->inventory,
                'after_inventory' => $inventory,
                'flag' => $data['flag'],
                'good_id' => $rs->good_id,
                'good_code' => $rs->good_code,
                'good_name' => $rs->good_name,
                'source' => CommonModel::$source_admin,
                'createrid' => self::$uid,
                'creater' => self::$uname,
                'addtime' => $date,
            ]);

            InventoryShoppingModel::where('id', $data['id'])->save(['updatetime' => $date, 'inventory' => $inventory]);

            Db::commit();

            return json_show(CommonModel::$success, '编辑商城商品库存成功');

        } catch (Exception $exception) {
            Db::rollback();
            return json_show(CommonModel::$error_param, '编辑商城商品库存失败，' . $exception->getMessage());
        }

    }

    //商城商品库存变动记录
    public static function log(array $data = []): Json
    {
        $count = Db::name('inventory_shopping_log')
            ->where('inventory_shopping_id', $data['id'])
            ->count('id');

        $res = Db::name('inventory_shopping_log')
            ->field(true)
            ->where('inventory_shopping_id', $data['id'])
            ->order('id', 'desc')
            ->page($data['page'], $data['size'])
            ->select()
            ->toArray();

        return json_show(CommonModel::$success, '获取商城商品库存变动记录', ['count' => $count, 'list' => $res]);
    }

}