package domain

import "time"

// SessionID is a typed session identifier with prefix "ses_".
type SessionID string

// Session tracks a user login with device and location information.
// The session ID is embedded in the JWT token for revocation support.
type Session struct {
	ID           SessionID
	UserID       UserID
	IPAddress    string
	UserAgent    string
	DeviceLabel  string
	LastActiveAt time.Time
	ExpiresAt    time.Time
	RevokedAt    *time.Time
	CreatedAt    time.Time
}

// IsActive returns true if the session has not been revoked and has not expired.
func (s *Session) IsActive() bool {
	return s.RevokedAt == nil && time.Now().Before(s.ExpiresAt)
}