package libme

import (
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
	"strings"

	"go.wit.com/log"
)

// remove '?' part and trailing '/'
func cleanURL(url string) string {
	url = "/" + strings.Trim(url, "/")
	return url
}

func okHandler(w http.ResponseWriter, r *http.Request) {
	var route string

	log.Info("Got URL Path: ", r.URL.Path)
	log.Info("Got URL Query:", r.URL.Query().Get("start"))

	route = cleanURL(r.URL.Path)

	msg, err := ioutil.ReadAll(r.Body) // Read the body as []byte
	if err != nil {
		fmt.Fprintln(w, "ReadAll() error =", err)
		return
	}

	log.Info("Got URL msg:", string(msg))

	if route == "/" {
		fmt.Fprintln(w, "OK")
		return
	}
	if route == "/me" {
		j, err := dumpJsonClient(r)
		if err != nil {
			fmt.Fprintln(w, "json parse error")
			return
		}
		fmt.Fprintln(w, j)
		return
	}

	if route == "/favicon.ico" {
		w.Header().Set("Content-Type", "image/png")
	}

	if route == "/kill" {
		log.Warn("KILLED")
		fmt.Fprintln(w, "KILLED")
		os.Exit(-1)
		return
	}

	log.Warn("BAD URL =", route)
	fmt.Fprintln(w, "BAD URL =", route)
}

// starts and sits waiting for HTTP requests
func StartMe(port int) {
	http.HandleFunc("/", okHandler)

	p := fmt.Sprintf(":%d", port)
	log.Println("Running on port", p)

	err := http.ListenAndServe(p, nil)
	if err != nil {
		log.Println("Error starting server:", err)
	}
}