add

back/usecase/usecase.go

@@ -3,6 +3,7 @@ package usecase
 import (
 	"encoding/base64"
 	"fmt"
+	"math/rand"
 	"time"
 
 	"github.com/walnuts1018/openchokin/back/domain"
@@ -18,8 +19,7 @@ func NewUsecase(db domain.DB) *Usecase {
 	}
 }
 
-func (u Usecase) NewUser(userName, email string) (domain.User, error) {
-	userid := base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%v%v", userName, email)))
+func (u Usecase) NewUser(userid string) (domain.User, error) {
 	user := domain.User{
 		ID: userid,
 	}
@@ -34,19 +34,33 @@ func (u Usecase) GetUser(userID string) (domain.User, error) {
 	return u.db.GetUser(userID)
 }
 
-func (u Usecase) NewMoneyPool(moneyPool domain.MoneyPool, user domain.User) error {
+func (u Usecase) NewMoneyPool(moneyPoolName, moneyPoolColor, userID string, isWorldPublic bool) (domain.MoneyPool, error) {
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	moneyPoolID := base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%d%d%d", moneyPoolName, userID, r.Int63())))
+	moneyPool := domain.MoneyPool{
+		ID:            moneyPoolID,
+		Name:          moneyPoolName,
+		Color:         moneyPoolColor,
+		IsWorldPublic: isWorldPublic,
+		ShareUserIDs:  []string{userID},
+	}
+
 	err := u.db.NewMoneyPool(moneyPool)
 	if err != nil {
-		return fmt.Errorf("failed to create money pool: %w", err)
+		return domain.MoneyPool{}, fmt.Errorf("failed to create money pool: %w", err)
+	}
+
+	user, err := u.db.GetUser(userID)
+	if err != nil {
+		return domain.MoneyPool{}, fmt.Errorf("failed to get user: %w", err)
 	}
 
 	user.MoneyPoolIDs = append(user.MoneyPoolIDs, moneyPool.ID)
 	err = u.db.UpdateUser(user)
 	if err != nil {
-		return fmt.Errorf("failed to update user: %w", err)
+		return domain.MoneyPool{}, fmt.Errorf("failed to update user: %w", err)
 	}
-	return nil
-
+	return moneyPool, nil
 }
 
 func (u Usecase) GetMoneyPool(moneyPoolID string) (domain.MoneyPool, error) {
@@ -62,7 +76,7 @@ func (u Usecase) UpdateMoneyPool(moneyPool domain.MoneyPool) error {
 }
 
 func (u Usecase) NewTransaction(transaction domain.Transaction, user domain.User) error {
-
+	return u.db.NewTransaction(transaction)
 }
 
 func (u Usecase) GetTransactionsByTimeRange(UserID string, moneyPoolID string, from time.Time, to time.Time) ([]domain.Transaction, error) {