package lib

import (
	"context"

	"github.com/getAlby/lndhub.go/db/models"
	"github.com/lightningnetwork/lnd/lnrpc"
	"github.com/uptrace/bun"
)

type LndhubService struct {
	DB        *bun.DB
	LndClient *lnrpc.LightningClient
}

func (svc *LndhubService) CurrentBalance(ctx context.Context, userId int64) (int64, error) {
	var balance int64

	account, err := svc.AccountFor(ctx, "current", userId)
	if err != nil {
		return balance, err
	}
	err = svc.DB.NewSelect().Table("account_ledgers").ColumnExpr("sum(account_ledgers.amount) as balance").Where("account_ledgers.account_id = ?", account.ID).Scan(context.TODO(), &balance)
	return balance, err
}

func (svc *LndhubService) AccountFor(ctx context.Context, accountType string, userId int64) (models.Account, error) {
	account := models.Account{}
	err := svc.DB.NewSelect().Model(&account).Where("user_id = ? AND type= ?", userId, accountType).Limit(1).Scan(ctx)
	return account, err
}