// 库存明细DAO层(逻辑库存)
// 职责：批量插入/删除、按SKU统计数量、查询列表
// 紧密耦合：service.StockDetails、service.StockManage(入库出库)
// 注意：GetStockCountBySkuId使用NoCache()跳过缓存，BatchInsert用于批量入库
package dao

import (
	"assets/consts/public"
	"assets/consts/stock"
	dto "assets/model/dto/stock"
	entity "assets/model/entity/stock"
	"context"

	"gitea.com/red-future/common/beans"
	"gitea.com/red-future/common/db/mongo"
	"github.com/gogf/gf/v2/frame/g"
	"go.mongodb.org/mongo-driver/v2/bson"
)

var StockDetails = new(stockDetails)

type stockDetails struct {
}

// BatchInsert 批量插入库存
func (d *stockDetails) BatchInsert(ctx context.Context, stockInterfaces []interface{}) (ids []interface{}, err error) {
	ids, err = mongo.DB().Insert(ctx, stockInterfaces, public.StockDetailsCollection)
	return
}

// DeleteManyByIds 根据ID批量删除库存
func (d *stockDetails) DeleteManyByIds(ctx context.Context, allStockIds []*bson.ObjectID) (count int64, err error) {
	if len(allStockIds) == 0 {
		return 0, nil
	}
	filter := bson.M{"_id": bson.M{"$in": allStockIds}}
	count, err = mongo.DB().Delete(ctx, filter, public.StockDetailsCollection)
	return
}

// GetStockCountBySkuId 获取库存数根据SKU ID
func (d *stockDetails) GetStockCountBySkuId(ctx context.Context, assetSkuId int64) (total int64, err error) {
	// 构建查询过滤条件
	filter := bson.M{}
	filter["assetSkuId"] = assetSkuId
	filter["status"] = stock.StockStatusAvailable
	// 检查总数
	total, err = mongo.DB().NoCache().Count(ctx, filter, public.StockDetailsCollection)

	return total, err
}

// GetOneById 根据ID查询库存明细
func (d *stockDetails) GetOneById(ctx context.Context, req *dto.GetStockDetailsReq) (res *entity.StockDetails, err error) {
	filter := bson.M{"_id": req.Id}
	err = mongo.DB().FindOne(ctx, filter, &res, public.StockDetailsCollection)
	return
}

// List 获取SKU列表
func (d *stockDetails) List(ctx context.Context, req *dto.ListStockDetailsReq) (res []entity.StockDetails, total int64, err error) {
	// 构建查询过滤条件
	filter := bson.M{}
	if !g.IsEmpty(req.AssetId) {
		filter["assetId"] = req.AssetId
	}
	if !g.IsEmpty(req.AssetSkuId) {
		filter["assetSkuId"] = req.AssetSkuId
	}
	if !g.IsEmpty(req.Status) {
		filter["status"] = req.Status
	}
	// 排序处理
	req.OrderBy = []beans.OrderBy{
		{Field: "sort", Order: beans.Asc},
		{Field: "createdAt", Order: beans.Desc},
	}
	total, err = mongo.DB().Find(ctx, filter, &res, public.StockDetailsCollection, req.Page, req.OrderBy)
	return
}