97 lines
2.7 KiB
Go
97 lines
2.7 KiB
Go
package domain
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import (
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"context"
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"errors"
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"time"
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)
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type List struct {
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ID string `json:"id"`
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Name string `json:"name"`
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CreatedAt time.Time `json:"created_at"`
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ModifiedAt time.Time `json:"modified_at"`
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}
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type ListItem struct {
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ID string `json:"id"`
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ListID string `json:"list_id"`
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Title string `json:"title"`
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IsCompleted bool `json:"is_completed"`
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CreatedAt time.Time `json:"created_at"`
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ModifiedAt time.Time `json:"modified_at"`
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}
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type ListRepository interface {
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CreateList(ctx context.Context, name string, userIDs []string) (*List, error)
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AddUserToList(ctx context.Context, listID string, userID string) error
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RemoveUserFromList(ctx context.Context, listID string, userID string) error
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IsUserInList(ctx context.Context, listID string, userID string) (bool, error)
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CreateListItem(ctx context.Context, listID string, title string) (*ListItem, error)
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UpdateListItem(ctx context.Context, listItemID string, title string, isCompleted bool) error
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}
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type ListService struct {
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repo ListRepository
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}
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func NewListService(r ListRepository) *ListService {
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return &ListService{repo: r}
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}
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func (s *ListService) Create(ctx context.Context, name string, userIDs []string) (*List, error) {
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if len(userIDs) == 0 {
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return nil, errors.New("users must have at least one associated user")
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}
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if name == "" {
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return nil, errors.New("list name must not be empty")
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}
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return s.repo.CreateList(ctx, name, userIDs)
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}
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func (s *ListService) AddUserToList(ctx context.Context, ownerID string, listID string, userID string) error {
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if listID == "" {
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return errors.New("list id must not be empty")
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}
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if userID == "" {
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return errors.New("user id must not be empty")
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}
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return s.repo.AddUserToList(ctx, listID, userID)
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}
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func (s *ListService) RemoveUserFromList(ctx context.Context, ownerID string, listID string, userID string) error {
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if listID == "" {
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return errors.New("list id must not be empty")
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}
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if userID == "" {
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return errors.New("user id must not be empty")
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}
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return s.repo.RemoveUserFromList(ctx, listID, userID)
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}
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func (s *ListService) CreateListItem(ctx context.Context, ownerID string, listID string, title string) (*ListItem, error) {
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if listID == "" {
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return nil, errors.New("list id must not be empty")
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}
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if title == "" {
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return nil, errors.New("list item title must not be empty")
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}
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return s.repo.CreateListItem(ctx, listID, title)
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}
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func (s *ListService) UpdateListItem(ctx context.Context, ownerID string, listItemID string, title string, isCompleted bool) error {
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if listItemID == "" {
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return errors.New("list item id must not be empty")
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}
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if title == "" {
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return errors.New("list item title must not be empty")
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}
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return s.repo.UpdateListItem(ctx, listItemID, title, isCompleted)
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}
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