package models

import (
	"context"
	"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) {
	u := &User{}
	u.SetDB(s.db)

	err := s.GetDB().QueryRowContext(ctx, `
		SELECT id, nick, password_hash, created_at, updated_at, last_seen_at
		FROM users WHERE id = ?`,
		s.UserID,
	).Scan(
		&u.ID, &u.Nick, &u.PasswordHash,
		&u.CreatedAt, &u.UpdatedAt, &u.LastSeenAt,
	)
	if err != nil {
		return nil, err
	}

	return u, nil
}