package endpoints

import (
	"arbeitszeitmessung/helper"
	"arbeitszeitmessung/models"
	"arbeitszeitmessung/templates"
	"log"
	"net/http"
)

func UserSettingsHandler(w http.ResponseWriter, r *http.Request) {
	helper.RequiresLogin(Session, w, r)
	switch r.Method {
	case http.MethodGet:
		showUserPage(w, r, 0)
		break
	case http.MethodPost:
		switch r.FormValue("action") {
		case "change-pass":
			changePassword(w, r)
			break
		case "logout-user":
			logoutUser(w, r)
			break
		}

		break
	default:
		http.Error(w, "Method not allowed!", http.StatusMethodNotAllowed)
		break
	}
}

// change user password and store salted hash in db
func changePassword(w http.ResponseWriter, r *http.Request) {
	err := r.ParseForm()
	if err != nil {
		log.Println("Error parsing form!", err)
		http.Error(w, "Error parsing form error", http.StatusBadRequest)
		return
	}
	password := r.FormValue("password")
	newPassword := r.FormValue("new_password")
	if password == "" || newPassword == "" || newPassword != r.FormValue("new_password_repeat") {
		showUserPage(w, r, http.StatusBadRequest)
		return
	}
	user, err := (*models.User).GetByPersonalNummer(nil, Session.GetInt(r.Context(), "user"))
	if err != nil {
		log.Println("Error getting user!", err)
		showUserPage(w, r, http.StatusBadRequest)
	}
	auth, err := user.ChangePass(password, newPassword)
	if err != nil {
		log.Println("Error when changing password!", err)
	}
	if auth {
		showUserPage(w, r, http.StatusAccepted)
		return
	}
	showUserPage(w, r, http.StatusUnauthorized)
}

func logoutUser(w http.ResponseWriter, r *http.Request) {

	err := Session.Destroy(r.Context())
	if err != nil {
		log.Println("Error destroying session!", err)
	}
	http.Redirect(w, r, "/user/login", http.StatusSeeOther)
}

func showUserPage(w http.ResponseWriter, r *http.Request, status int) {
	templates.UserPage(status).Render(r.Context(), w)
	return
}