package eventmod

import (
	"context"
	"hkdj-web-server/pub/common/log"
	"hkdj-web-server/pub/common/srvdef"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
	"go.mongodb.org/mongo-driver/mongo/options"
)

// InsertOneEvent 插入一个事件
func InsertOneEvent(ctx context.Context, event *Event) *srvdef.SrvErr {
	if _, err := db.InsertOne(ctx, event); err != nil {
		log.Warn("eventmod:InsertOneEvent db.InsertOne failed", log.E(err))
		return srvdef.New(srvdef.ErrDbInsertError, "", "")
	}
	return nil
}

// InsertManyEvent 批量插入事件
func InsertManyEvent(ctx context.Context, events *EventList) *srvdef.SrvErr {
	if _, err := db.InsertMany(ctx, events); err != nil {
		log.Warn("eventmod:InsertManyEvent db.InsertMany failed", log.E(err))
		return srvdef.New(srvdef.ErrDbInsertError, "", "")
	}
	return nil
}

// DelOneEvent 删除一个事件
func DelOneEvent(ctx context.Context, filter bson.M) (int64, *srvdef.SrvErr) {
	count, err := db.DeleteOne(ctx, filter)
	if err != nil {
		log.Warn("eventmod:DelOneEvent db.DeleteOne failed",
			log.E(err), log.Any("filter", filter))
		return 0, srvdef.New(srvdef.ErrDbDeleteError, "", "")
	}
	return count, nil
}

// DelManyEvent 批量删除事件
func DelManyEvent(ctx context.Context, filter bson.M) (int64, *srvdef.SrvErr) {
	count, err := db.DeleteMany(ctx, filter)
	if err != nil {
		log.Warn("eventmod:DelManyEvent db.DeleteMany failed",
			log.E(err), log.Any("filter", filter))
		return 0, srvdef.New(srvdef.ErrDbDeleteError, "", "")
	}
	return count, nil
}

// FindOneEvent 查找一个事件
func FindOneEvent(ctx context.Context, filter bson.M, opts ...*options.FindOneOptions) (*Event, *srvdef.SrvErr) {
	var event Event
	if err := db.FindOneEx(ctx, &event, filter, opts...); err != nil {
		if err != mongo.ErrNoDocuments {
			log.Warn("eventmod:FindOneEvent db.FindOne failed",
				log.E(err), log.Any("filter", filter))
			return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
		}
		return nil, srvdef.New(srvdef.ErrNoData, "", "")
	}
	return &event, nil
}

// FindManyEvent 查找多个事件
func FindManyEvent(ctx context.Context, filter bson.M, opts ...*options.FindOptions) (EventList, *srvdef.SrvErr) {
	data := make(EventList, 0)
	if err := db.Find(ctx, &data, filter, opts...); err != nil {
		log.Warn("eventmod:FindManyEvent db.Find failed",
			log.E(err), log.Any("filter", filter))
		return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return data, nil
}

// CountEvent 统计事件数量
func CountEvent(ctx context.Context, filter bson.M) (int64, *srvdef.SrvErr) {
	count, err := db.Count(ctx, filter)
	if err != nil {
		log.Warn("eventmod:CountEvent db.Count failed",
			log.E(err), log.Any("filter", filter))
		return 0, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return count, nil
}

// UpdateOneEvent 更新一个事件
func UpdateOneEvent(ctx context.Context, filter bson.M, update bson.M) *srvdef.SrvErr {
	result, err := db.UpdateOne(ctx, filter, update)
	if err != nil {
		log.Warn("eventmod:UpdateOneEvent db.UpdateOne failed",
			log.E(err), log.Any("filter", filter))
		return srvdef.New(srvdef.ErrDbUpdateError, "", "")
	}
	if result.MatchedCount != 1 {
		log.Warn("eventmod:UpdateOneEvent db.UpdateOne not matched",
			log.Any("filter", filter))
		return srvdef.New(srvdef.ErrNoData, "", "")
	}
	return nil
}

// UpdateManyEvent 批量更新事件
func UpdateManyEvent(ctx context.Context, filter bson.M, update bson.M) *srvdef.SrvErr {
	result, err := db.UpdateMany(ctx, filter, update)
	if err != nil {
		log.Warn("eventmod:UpdateManyEvent db.UpdateMany failed",
			log.E(err), log.Any("filter", filter))
		return srvdef.New(srvdef.ErrDbUpdateError, "", "")
	}
	if result.MatchedCount < 1 {
		log.Warn("eventmod:UpdateManyEvent db.UpdateMany not matched",
			log.Any("filter", filter))
		return srvdef.New(srvdef.ErrNoData, "", "")
	}
	return nil
}

// UpsertOneEvent 插入或更新一个事件
func UpsertOneEvent(ctx context.Context, filter bson.M, update bson.M) *srvdef.SrvErr {
	opts := options.Update().SetUpsert(true)
	if _, err := db.UpdateOne(ctx, filter, update, opts); err != nil {
		log.Warn("eventmod:UpsertOneEvent db.UpdateOne failed",
			log.E(err), log.Any("filter", filter))
		return srvdef.New(srvdef.ErrDbUpdateError, "", "")
	}
	return nil
}