#include <ESP8266WiFi.h>
#include <ArduinoOTA.h>
#include <ESPAsyncWebServer.h>

AsyncWebServer server(80);

const char* ssid = "myssid";
const char* password = "mypass";
const char* hostName = "esp-async";

void setup(){
	Serial.begin(115200);
	Serial.setDebugOutput(true);

	WiFi.hostname(hostName);
	WiFi.mode(WIFI_AP_STA);
	WiFi.softAP(hostName);

	WiFi.begin(ssid, password);

	if (WiFi.waitForConnectResult() != WL_CONNECTED) {
		Serial.printf("STA: Failed!\n");
		WiFi.disconnect(false);
		delay(1000);
		WiFi.begin(ssid, password);
	}

	//Send OTA events to the browser
	ArduinoOTA.onStart([]() { /*events.send("Update Start", "ota"); */});
	ArduinoOTA.onEnd([]() { /*events.send("Update End", "ota"); */});
	ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
		char p[32];
		sprintf(p, "Progress: %u%%\n", (progress/(total/100)));
		//events.send(p, "ota");
	});
	ArduinoOTA.onError([](ota_error_t error) {
		/*if(error == OTA_AUTH_ERROR) events.send("Auth Failed", "ota");
		else if(error == OTA_BEGIN_ERROR) events.send("Begin Failed", "ota");
		else if(error == OTA_CONNECT_ERROR) events.send("Connect Failed", "ota");
		else if(error == OTA_RECEIVE_ERROR) events.send("Recieve Failed", "ota");
		else if(error == OTA_END_ERROR) events.send("End Failed", "ota");*/
	});
	ArduinoOTA.setHostname(hostName);
	ArduinoOTA.begin();

	server.on("/login", HTTP_GET, handleLogin);
	server.on("/login", HTTP_POST, handleLogin);

	server.begin();
}

void handleLogin(AsyncWebServerRequest *request){

	char titulo[100] = "Login";
	String contenido = "<div class=\"content\"><h1>Login</h1>";

	int headers = request->headers();
	int i;
	for(i=0;i<headers;i++){
		AsyncWebHeader* h = request->getHeader(i);
		//if(h->name().c_str()=="ESPSESSIONID"){
		  Serial.printf("_HEADER[%s]: %s\n", h->name().c_str(), h->value().c_str());
		//}
	}

	int params = request->params();
	for(i=0;i<params;i++){
		AsyncWebParameter* p = request->getParam(i);
		if(p->isFile()){
		  Serial.printf("_FILE[%s]: %s, size: %u\n", p->name().c_str(), p->value().c_str(), p->size());
		} else if(p->isPost()){
		  Serial.printf("_POST[%s]: %s\n", p->name().c_str(), p->value().c_str());
		} else {
		  Serial.printf("_GET[%s]: %s\n", p->name().c_str(), p->value().c_str());
		}
	}

	contenido += "<form action='/login' method='POST'>";
	contenido += "User:<input type='text' name='USERNAME' placeholder='user name'><br>";
	contenido += "Password:<input type='password' name='PASSWORD' placeholder='password'><br>";
	contenido += "<input type='submit' name='SUBMIT' value='Submit'></form>";
 
	contenido += "</div>";

	AsyncWebServerResponse *response = request->beginResponse(200, "text/html",  contenido);
	response->addHeader("Server","AB");

	request->send(response);

}

void loop(){
	ArduinoOTA.handle();
}

_HEADER[Host]: 192.168.1.157
_HEADER[Connection]: keep-alive
_HEADER[Content-Length]: 35
_HEADER[Cache-Control]: max-age=0
_HEADER[Accept]: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
_HEADER[Origin]: http://192.168.1.157
_HEADER[Upgrade-Insecure-Requests]: 1
_HEADER[User-Agent]: Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36
_HEADER[Content-Type]: application/x-www-form-urlencoded
_HEADER[Referer]: http://192.168.1.157/login
_HEADER[Accept-Encoding]: gzip, deflate
_HEADER[Accept-Language]: es-419,es;q=0.8,en;q=0.6
_POST[USERNAME]: A
_POST[PASSWORD]: B
_POST[SUBMIT]: Submit