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package session
import (
"context"
"database/sql"
"github.com/google/uuid"
"github.com/kujtimiihoxha/termai/internal/db"
"github.com/kujtimiihoxha/termai/internal/pubsub"
)
type Session struct {
ID string
ParentSessionID string
Title string
MessageCount int64
PromptTokens int64
CompletionTokens int64
Cost float64
CreatedAt int64
UpdatedAt int64
}
type Service interface {
pubsub.Suscriber[Session]
Create(title string) (Session, error)
CreateTaskSession(toolCallID, parentSessionID, title string) (Session, error)
Get(id string) (Session, error)
List() ([]Session, error)
Save(session Session) (Session, error)
Delete(id string) error
}
type service struct {
*pubsub.Broker[Session]
q db.Querier
ctx context.Context
}
func (s *service) Create(title string) (Session, error) {
dbSession, err := s.q.CreateSession(s.ctx, db.CreateSessionParams{
ID: uuid.New().String(),
Title: title,
})
if err != nil {
return Session{}, err
}
session := s.fromDBItem(dbSession)
s.Publish(pubsub.CreatedEvent, session)
return session, nil
}
func (s *service) CreateTaskSession(toolCallID, parentSessionID, title string) (Session, error) {
dbSession, err := s.q.CreateSession(s.ctx, db.CreateSessionParams{
ID: toolCallID,
ParentSessionID: sql.NullString{String: parentSessionID, Valid: true},
Title: title,
})
if err != nil {
return Session{}, err
}
session := s.fromDBItem(dbSession)
s.Publish(pubsub.CreatedEvent, session)
return session, nil
}
func (s *service) Delete(id string) error {
session, err := s.Get(id)
if err != nil {
return err
}
err = s.q.DeleteSession(s.ctx, session.ID)
if err != nil {
return err
}
s.Publish(pubsub.DeletedEvent, session)
return nil
}
func (s *service) Get(id string) (Session, error) {
dbSession, err := s.q.GetSessionByID(s.ctx, id)
if err != nil {
return Session{}, err
}
return s.fromDBItem(dbSession), nil
}
func (s *service) Save(session Session) (Session, error) {
dbSession, err := s.q.UpdateSession(s.ctx, db.UpdateSessionParams{
ID: session.ID,
Title: session.Title,
PromptTokens: session.PromptTokens,
CompletionTokens: session.CompletionTokens,
Cost: session.Cost,
})
if err != nil {
return Session{}, err
}
session = s.fromDBItem(dbSession)
s.Publish(pubsub.UpdatedEvent, session)
return session, nil
}
func (s *service) List() ([]Session, error) {
dbSessions, err := s.q.ListSessions(s.ctx)
if err != nil {
return nil, err
}
sessions := make([]Session, len(dbSessions))
for i, dbSession := range dbSessions {
sessions[i] = s.fromDBItem(dbSession)
}
return sessions, nil
}
func (s service) fromDBItem(item db.Session) Session {
return Session{
ID: item.ID,
ParentSessionID: item.ParentSessionID.String,
Title: item.Title,
MessageCount: item.MessageCount,
PromptTokens: item.PromptTokens,
CompletionTokens: item.CompletionTokens,
Cost: item.Cost,
CreatedAt: item.CreatedAt,
UpdatedAt: item.UpdatedAt,
}
}
func NewService(ctx context.Context, q db.Querier) Service {
broker := pubsub.NewBroker[Session]()
return &service{
broker,
q,
ctx,
}
}
|
