package backend

import "time"

// Session holds info about the logged-in user that won't change
type Session struct {
	SessionID  string
	Expiration time.Time
	UserID     string
	LdapDN     string
}

// SessionCache holds volatile information about the logged-in user
type SessionCache struct {
	Valid       bool
	Groups      []string
	DisplayName string
	Email       string
}

type Backend interface {
	PutSession(session Session, cache SessionCache) error
	GetSession(id string) (Session, *SessionCache, error)
	EndSession(id string)
	NewSessionID() (string, error)
	DoMaintenance()
	Ping() error
}