package users

import (
	"encoding/json"
	"net/http"
)

func getUsers(w http.ResponseWriter, r *http.Request) {
	users, err := getAllUsers()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Add("Content-Type", "application/json")
	json.NewEncoder(w).Encode(users)
}

func postUser(w http.ResponseWriter, r *http.Request) {
	var payload User
	err := json.NewDecoder(r.Body).Decode(&payload)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	user := User{
		Id: payload.Id,
		Name: payload.Name,
	}
	err = insertuser(user)
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	w.Write([]byte("OK"))
}

func NewUsersAPI() *http.ServeMux {
	initUsers()
	mux := http.NewServeMux()

	mux.HandleFunc("GET /", getUsers)
	mux.HandleFunc("POST /", postUser)

	return mux
}