package main

import (
	"fmt"
	"log"
	"net/http"
	"os"
)

func main() {
	http.HandleFunc("/", indexHandler)
	port := os.Getenv("PORT")
	if port == "" {
		port = "8080"
		log.Printf("Defaulting to port %s", port)
	}

	log.Printf("Listening on port %s", port)
	log.Printf("Open http://localhost:%s in the browser", port)
	log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", port), nil))
}

func indexHandler(w http.ResponseWriter, r *http.Request) {
	if r.URL.Path == "/test" {
		_, err := fmt.Fprint(w, "Testing path")
		if err != nil {
			w.WriteHeader(http.StatusInternalServerError)
		}
	} else if r.URL.Path == "/" {
		_, err := fmt.Fprint(w, "Hello, World!!")
		if err != nil {
			w.WriteHeader(http.StatusInternalServerError)
		}
	} else {
		http.NotFound(w, r)
		return
	}

}