package main

import (
	"fmt"
	"log"
	"net/http"
	"time"

	"github.com/gorilla/mux"
)

type ImageModel struct {
	File []byte `json:"file"`
}

type Route struct {
	Name        string
	Method      string
	Pattern     string
	HandlerFunc http.HandlerFunc
}
type Routes []Route

var routes = Routes{
	Route{
		"Index",
		"GET",
		"/",
		Index,
	},
	Route{
		"NewImage",
		"POST",
		"/image",
		NewImage,
	},
}

func Logger(inner http.Handler, name string) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		start := time.Now()

		inner.ServeHTTP(w, r)

		log.Printf(
			"%s\t%s\t%s\t%s",
			r.Method,
			r.RequestURI,
			name,
			time.Since(start),
		)
	})
}
func NewRouter() *mux.Router {
	router := mux.NewRouter().StrictSlash(true)
	for _, route := range routes {
		var handler http.Handler
		handler = route.HandlerFunc
		handler = Logger(handler, route.Name)

		router.
			Methods(route.Method).
			Path(route.Pattern).
			Name(route.Name).
			Handler(handler)
	}
	return router
}

func Index(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintln(w, "send images to the /image path")
}
func NewImage(w http.ResponseWriter, r *http.Request) {
	_, handler, err := r.FormFile("file")
	check(err)

	//imageName := strings.Split(handler.Filename, ".")[0]
	//fileName := imageName + ".png"

	//data, err := ioutil.ReadAll(file)
	//check(err)
	img := readImage(handler.Filename)
	histogram := imageToHistogram(img)
	result := knn(dataset, histogram)

	c.Purple("seems to be a " + result)
	fmt.Fprintln(w, "seems to be a "+result)
}