package models

import (
	"context"
	"fmt"
	"time"
)

// Session represents a server-held user session.
type Session struct {
	Base

	ID           string     `json:"id"`
	UserID       string     `json:"userId"`
	CreatedAt    time.Time  `json:"createdAt"`
	LastActiveAt time.Time  `json:"lastActiveAt"`
	ExpiresAt    *time.Time `json:"expiresAt,omitempty"`
}

// User returns the user who owns this session.
func (s *Session) User(ctx context.Context) (*User, error) {
	if ul := s.GetUserLookup(); ul != nil {
		return ul.GetUserByID(ctx, s.UserID)
	}

	return nil, fmt.Errorf("user lookup not available")
}