// 库位DAO层
// 职责：库位CRUD、状态更新、批量状态更新、删除前检查(3个库存集合)、更新容量
// 紧密耦合：service.Location(删除检查)、service.Capacity(容量计算入口)
// 注意：DeleteFake前需检查StockDetails/StockBatch/PrivateStock三个集合
package dao

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

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

var Location = new(location)

type location struct{}

func (d *location) Insert(ctx context.Context, req *dto.CreateLocationReq) (ids []interface{}, err error) {
	var result *entity.Location
	if err = utils.Struct(req, &result); err != nil {
		return
	}
	// 如果未传入状态，设置默认值为空闲
	if result.Status == "" {
		result.Status = stock.LocationStatusIdle
	}
	// 初始容量默认为0
	//if result.CurrentCapacity == 0 {
	//	result.CurrentCapacity = 0
	//}
	ids, err = mongo.DB().Insert(ctx, []interface{}{&result}, public.LocationCollection)
	return
}

func (d *location) GetOne(ctx context.Context, req *dto.GetLocationReq) (res *entity.Location, err error) {
	filter := bson.M{"_id": req.Id}
	err = mongo.DB().FindOne(ctx, filter, &res, public.LocationCollection)
	return
}

func (d *location) Update(ctx context.Context, req *dto.UpdateLocationReq) (err error) {
	buildFilter, err := mongo.BuildUpdateData(ctx, req)
	if err != nil {
		return
	}
	filter := bson.M{"_id": req.Id}
	update := bson.M{"$set": buildFilter}
	_, err = mongo.DB().Update(ctx, filter, update, public.LocationCollection)
	return
}

func (d *location) DeleteFake(ctx context.Context, req *dto.DeleteLocationReq) (err error) {
	filter := bson.M{"_id": req.Id}
	_, err = mongo.DB().DeleteSoft(ctx, filter, public.LocationCollection)
	return
}

// UpdateStatus 更新库位状态
func (d *location) UpdateStatus(ctx context.Context, req *dto.UpdateLocationStatusReq) (err error) {
	filter := bson.M{"_id": req.Id}
	update := bson.M{"$set": bson.M{"status": req.Status}}
	_, err = mongo.DB().Update(ctx, filter, update, public.LocationCollection)
	return
}

func (d *location) List(ctx context.Context, req *dto.ListLocationReq) (res []entity.Location, total int64, err error) {
	filter, err := d.buildListFilter(ctx, req)
	if err != nil {
		return
	}
	total, err = mongo.DB().Find(ctx, filter, &res, public.LocationCollection, req.Page, req.OrderBy)
	return
}

func (d *location) buildListFilter(ctx context.Context, req *dto.ListLocationReq) (filter bson.M, err error) {
	_ = ctx
	filter = bson.M{}
	// 兼容单值和数组参数（优先使用数组）
	if len(req.WarehouseIds) > 0 {
		filter["warehouseId"] = bson.M{"$in": req.WarehouseIds}
	} else if !g.IsEmpty(req.WarehouseId) {
		filter["warehouseId"] = req.WarehouseId
	}
	if len(req.ZoneIds) > 0 {
		filter["zoneId"] = bson.M{"$in": req.ZoneIds}
	} else if !g.IsEmpty(req.ZoneId) {
		filter["zoneId"] = req.ZoneId
	}
	if !g.IsEmpty(req.LocationType) {
		filter["locationType"] = req.LocationType
	}
	if !g.IsEmpty(req.Status) {
		filter["status"] = req.Status
	}
	if !g.IsEmpty(req.Keyword) {
		filter["$or"] = bson.A{
			bson.M{"locationCode": bson.M{"$regex": req.Keyword, "$options": "i"}},
			bson.M{"locationName": bson.M{"$regex": req.Keyword, "$options": "i"}},
		}
	}
	return
}

// CountByZoneId 统计库区下的库位数量（用于删除前检查）
func (d *location) CountByZoneId(ctx context.Context, zoneId string) (count int64, err error) {
	filter := bson.M{"zoneId": zoneId}
	count, err = mongo.DB().Count(ctx, filter, public.LocationCollection)
	return
}

// CountByWarehouseId 统计仓库下的库位数量（用于删除前检查）
func (d *location) CountByWarehouseId(ctx context.Context, warehouseId string) (count int64, err error) {
	filter := bson.M{"warehouseId": warehouseId}
	count, err = mongo.DB().Count(ctx, filter, public.LocationCollection)
	return
}

// BatchUpdateStatusByZoneId 批量更新库区下所有库位状态（用于状态联动）
func (d *location) BatchUpdateStatusByZoneId(ctx context.Context, zoneId string, status stock.LocationStatus) (modifiedCount int64, err error) {
	filter := bson.M{"zoneId": zoneId}
	update := bson.M{"$set": bson.M{"status": status}}
	modifiedCount, err = mongo.DB().Update(ctx, filter, update, public.LocationCollection)
	return
}

// BatchUpdateStatusByWarehouseId 批量更新仓库下所有库位状态（用于状态联动）
func (d *location) BatchUpdateStatusByWarehouseId(ctx context.Context, warehouseId string, status stock.LocationStatus) (modifiedCount int64, err error) {
	filter := bson.M{"warehouseId": warehouseId}
	update := bson.M{"$set": bson.M{"status": status}}
	modifiedCount, err = mongo.DB().Update(ctx, filter, update, public.LocationCollection)
	return
}

// DeleteByZoneId 批量删除库区下所有库位（用于级联删除）
func (d *location) DeleteByZoneId(ctx context.Context, zoneId string) (modifiedCount int64, err error) {
	filter := bson.M{"zoneId": zoneId}
	modifiedCount, err = mongo.DB().DeleteSoft(ctx, filter, public.LocationCollection)
	return
}

// DeleteByWarehouseId 批量删除仓库下所有库位（用于级联删除）
func (d *location) DeleteByWarehouseId(ctx context.Context, warehouseId string) (modifiedCount int64, err error) {
	filter := bson.M{"warehouseId": warehouseId}
	modifiedCount, err = mongo.DB().DeleteSoft(ctx, filter, public.LocationCollection)
	return
}

// CountStockDetailsByLocationId 统计库位上的库存明细数量（用于删除前检查）
func (d *location) CountStockDetailsByLocationId(ctx context.Context, locationId string) (count int64, err error) {
	filter := bson.M{"locationId": locationId}
	count, err = mongo.DB().Count(ctx, filter, public.TableNameStockDetails)
	return
}

// CountStockBatchByLocationId 统计库位上的批次库存数量（用于删除前检查）
func (d *location) CountStockBatchByLocationId(ctx context.Context, locationId string) (count int64, err error) {
	filter := bson.M{"locationId": locationId}
	count, err = mongo.DB().Count(ctx, filter, public.TableNameStockBatch)
	return
}

// CountPrivateStockByLocationId 统计库位上的私域库存数量（用于删除前检查）
func (d *location) CountPrivateStockByLocationId(ctx context.Context, locationId string) (count int64, err error) {
	filter := bson.M{"locationId": locationId}
	count, err = mongo.DB().Count(ctx, filter, public.PrivateStockCollection)
	return
}

// UpdateCapacity 更新库位容量
func (d *location) UpdateCapacity(ctx context.Context, locationId *bson.ObjectID, currentCapacity int) (err error) {
	filter := bson.M{"_id": locationId}
	update := bson.M{"$set": bson.M{"capacity.currentCapacity": currentCapacity}}
	_, err = mongo.DB().Update(ctx, filter, update, public.LocationCollection)
	return
}

// ListByZoneAndUnitType 按库区和容量单位类型查询库位列表
func (d *location) ListByZoneAndUnitType(ctx context.Context, zoneId *bson.ObjectID, unitType stock.CapacityUnitType) (res []entity.Location, err error) {
	filter := bson.M{
		"zoneId":           zoneId,
		"capacityUnitType": unitType,
	}
	_, err = mongo.DB().Find(ctx, filter, &res, public.LocationCollection, nil, nil)
	return
}