package handlers

import (
	"go-backend/internal/auth"
	"go-backend/internal/database"
)

// UserService and AuthService are defined here, on the consumer side, so
// handlers depend only on the methods they actually use and tests can swap
// in fakes without touching the services package.

type UserService interface {
	FindByID(id string) (*database.User, error)
	FindByUsername(username string) (*database.User, error)
}

type AuthService interface {
	CreateSession(userID string) (*auth.SessionWithToken, error)
	ValidateSessionToken(token string) (*auth.Session, error)
}

type Handler struct {
	users UserService
	auth  AuthService
}

func NewHandler(users UserService, auth AuthService) *Handler {
	return &Handler{
		users: users,
		auth:  auth,
	}
}