package terminology

import (
	"fmt"
	"net/http"

	"github.com/go-playground/validator/v10"
	"github.com/gorilla/mux"
	"sismedika.com/sas/westone/services/auth"
	"sismedika.com/sas/westone/types"
	"sismedika.com/sas/westone/utils"
)

type Handler struct {
	store types.TerminologyStore
}

func NewHandler(store types.TerminologyStore) *Handler {
	return &Handler{store: store}
}

func (h *Handler) RegisterRoutes(router *mux.Router) {
	router.HandleFunc("/termicheck", h.checkAPI).Methods(http.MethodGet)
	termi := router.PathPrefix("/terminology").Subrouter()
	termi.Use(auth.AuthMiddleware)

	termi.HandleFunc("/getdisplay", h.handleTerminologyDisplay).Methods(http.MethodGet)
}

func (h *Handler) checkAPI(w http.ResponseWriter, _ *http.Request) {
	utils.WriteJSON(w, http.StatusOK, "Connected")
}

func (h *Handler) handleTerminologyDisplay(w http.ResponseWriter, r *http.Request) {
	var payload types.GetTerminologyDisplayPayload
	if err := utils.ParseJSON(r, &payload); err != nil {
		utils.WriteError(w, http.StatusBadRequest, err)
		return
	}

	if err := utils.Validate.Struct(payload); err != nil {
		erros := err.(validator.ValidationErrors)
		utils.WriteError(w, http.StatusBadRequest, fmt.Errorf("invalid payload: %v", erros))
		return
	}

	response, err := h.store.GetTerminologyDisplay(payload.Code, payload.CodeSystem)
	if err != nil {
		utils.WriteError(w, http.StatusInternalServerError, err)
		return
	}

	utils.WriteJSON(w, http.StatusOK, response)
}