File size: 4,232 Bytes
3b67767 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | package session
import (
"context"
"database/sql"
"github.com/charmbracelet/crush/internal/db"
"github.com/charmbracelet/crush/internal/pubsub"
"github.com/google/uuid"
)
type Session struct {
ID string
ParentSessionID string
Title string
MessageCount int64
PromptTokens int64
CompletionTokens int64
SummaryMessageID string
Cost float64
CreatedAt int64
UpdatedAt int64
}
type Service interface {
pubsub.Suscriber[Session]
Create(ctx context.Context, title string) (Session, error)
CreateTitleSession(ctx context.Context, parentSessionID string) (Session, error)
CreateTaskSession(ctx context.Context, toolCallID, parentSessionID, title string) (Session, error)
Get(ctx context.Context, id string) (Session, error)
List(ctx context.Context) ([]Session, error)
Save(ctx context.Context, session Session) (Session, error)
Delete(ctx context.Context, id string) error
}
type service struct {
*pubsub.Broker[Session]
q db.Querier
}
func (s *service) Create(ctx context.Context, title string) (Session, error) {
dbSession, err := s.q.CreateSession(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(ctx context.Context, toolCallID, parentSessionID, title string) (Session, error) {
dbSession, err := s.q.CreateSession(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) CreateTitleSession(ctx context.Context, parentSessionID string) (Session, error) {
dbSession, err := s.q.CreateSession(ctx, db.CreateSessionParams{
ID: "title-" + parentSessionID,
ParentSessionID: sql.NullString{String: parentSessionID, Valid: true},
Title: "Generate a title",
})
if err != nil {
return Session{}, err
}
session := s.fromDBItem(dbSession)
s.Publish(pubsub.CreatedEvent, session)
return session, nil
}
func (s *service) Delete(ctx context.Context, id string) error {
session, err := s.Get(ctx, id)
if err != nil {
return err
}
err = s.q.DeleteSession(ctx, session.ID)
if err != nil {
return err
}
s.Publish(pubsub.DeletedEvent, session)
return nil
}
func (s *service) Get(ctx context.Context, id string) (Session, error) {
dbSession, err := s.q.GetSessionByID(ctx, id)
if err != nil {
return Session{}, err
}
return s.fromDBItem(dbSession), nil
}
func (s *service) Save(ctx context.Context, session Session) (Session, error) {
dbSession, err := s.q.UpdateSession(ctx, db.UpdateSessionParams{
ID: session.ID,
Title: session.Title,
PromptTokens: session.PromptTokens,
CompletionTokens: session.CompletionTokens,
SummaryMessageID: sql.NullString{
String: session.SummaryMessageID,
Valid: session.SummaryMessageID != "",
},
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(ctx context.Context) ([]Session, error) {
dbSessions, err := s.q.ListSessions(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,
SummaryMessageID: item.SummaryMessageID.String,
Cost: item.Cost,
CreatedAt: item.CreatedAt,
UpdatedAt: item.UpdatedAt,
}
}
func NewService(q db.Querier) Service {
broker := pubsub.NewBroker[Session]()
return &service{
broker,
q,
}
}
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