package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"strconv"

	"github.com/gorilla/mux"
)

type Routes []Route

var routes = Routes{
	Route{
		"Index",
		"GET",
		"/",
		Index,
	},
	Route{
		"Recommendations",
		"GET",
		"/r/{userid}/{nrec}",
		Recommendations,
	},
	Route{
		"NewUser",
		"POST",
		"/user",
		NewUser,
	},
}

//ROUTES

func Index(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintln(w, "ask for recommendations in /r")
}

func NewUser(w http.ResponseWriter, r *http.Request) {
	decoder := json.NewDecoder(r.Body)
	var newUser UserModel
	err := decoder.Decode(&newUser)
	check(err)
	defer r.Body.Close()

	saveUser(userCollection, newUser)

	fmt.Println(newUser)
	fmt.Fprintln(w, "new user added: ", newUser.ID)
}
func Recommendations(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	userid := vars["userid"]
	nrec, err := strconv.Atoi(vars["nrec"])
	check(err)

	//now, get recommendations
	getRecommendations(userid, nrec)

	fmt.Fprintln(w, "recommendations")
}