package main

import (
	"log"
	"net/http"
	"strings"
)

var denyNameChange bool = true

type ChNameHandler struct {}

func (n ChNameHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")

	if denyNameChange {
		log.Printf("UNHANDELED %s name change request from %s: %s [%s]\n", r.Method, r.RemoteAddr, r.URL.Path, r.UserAgent())
		http.Error(w, "{\"errmsg\":\"Le changement de nom est prohibé.\"}", http.StatusForbidden)
		return
	}

	log.Printf("Handling %s name change request from %s: %s [%s]\n", r.Method, r.RemoteAddr, r.URL.Path, r.UserAgent())

	// Check request type and size
	if r.Method != "POST" {
		http.Error(w, "{\"errmsg\":\"Requête invalide.\"}", http.StatusBadRequest)
		return
	} else if r.ContentLength < 0 || r.ContentLength > 1023 {
		http.Error(w, "{\"errmsg\":\"Requête trop longue ou de taille inconnue\"}", http.StatusRequestEntityTooLarge)
		return
	}

	// Extract URL arguments
	var sURL = strings.Split(r.URL.Path, "/")

	if len(sURL) != 1 {
		http.Error(w, "{\"errmsg\":\"Requête invalide.\"}", http.StatusBadRequest)
		return
	}

	team := sURL[0]

	// Enqueue file for backend treatment
	if saveTeamFile(SubmissionDir, team, "name", w, r) {
		http.Error(w, "{\"errmsg\":\"Demande de changement de nom acceptée\"}", http.StatusAccepted)
	}
}