package routes

import (
	"encoding/json"
	"gitea.deepak.science/deepak/gogmagog/models"
	"gitea.deepak.science/deepak/gogmagog/tokens"
	"github.com/go-chi/chi"
	"log"
	"net/http"
)

// NewCurrentUserRouter returns a new router for getting the current user.
func NewCurrentUserRouter(m *models.Model) http.Handler {
	router := chi.NewRouter()
	router.Get("/", getMeFunc(m))
	return router
}

func getMeFunc(m *models.Model) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		userID, err := tokens.GetUserID(r.Context())
		if err != nil {
			log.Print(err)
			unauthorizedHandler(w, r)
			return
		}
		username, err := tokens.GetUsername(r.Context())
		if err != nil {
			log.Print(err)
			unauthorizedHandler(w, r)
			return
		}

		user, err := m.UserByUsername(username, userID)
		if err != nil {
			if models.IsNotFoundError(err) {
				notFoundHandler(w, r)
				return
			}
			serverError(w, err)
			return
		}
		w.Header().Add("Content-Type", "application/json")
		if err := json.NewEncoder(w).Encode(user); err != nil {
			serverError(w, err)
		}
	}
}