/*
 * This file is part of the "bluetoothheater" distribution 
 * (https://gitlab.com/mrjones.id.au/bluetoothheater) 
 *
 * Copyright (C) 2018  Ray Jones <ray@mrjones.id.au>
 * Copyright (C) 2018  James Clark
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 * 
 */


#include "BTCWebServer.h"
#include "DebugPort.h"
#include "TxManage.h"
#include "helpers.h"
#include "pins.h"
#include "Index.h"
#include <ArduinoJson.h>

extern void Command_Interpret(const char* pLine);   // decodes received command lines, implemented in main .ino file!

WebServer server(80);
WebSocketsServer webSocket = WebSocketsServer(81);
bool bRxWebData = false;
bool bTxWebData = false;

DynamicJsonBuffer jsonBuffer(512);   // create a JSON buffer on the heap

const int led = 13;

void handleRoot() {
	String s = MAIN_PAGE; //Read HTML contents
	server.send(200, "text/html", s); //Send web page
}

void handleNotFound() {
	digitalWrite(led, 1);
	String message = "File Not Found\n\n";
	message += "URI: ";
	message += server.uri();
	message += "\nMethod: ";
	message += (server.method() == HTTP_GET) ? "GET" : "POST";
	message += "\nArguments: ";
	message += server.args();
	message += "\n";
	for (uint8_t i = 0; i < server.args(); i++) {
		message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
	}
	server.send(404, "text/plain", message);
	digitalWrite(led, 0);
}

void initWebServer(void) {

	
	if (MDNS.begin("BTCHeater")) {
		DebugPort.println("MDNS responder started");
	}
	
	server.on("/", handleRoot);
	server.onNotFound(handleNotFound);

	server.begin();
	webSocket.begin();
	webSocket.onEvent(webSocketEvent);
	DebugPort.println("HTTP server started");

}
unsigned char cVal;

bool doWebServer(void) {
	static unsigned long lastTx = 0;
	webSocket.loop();
	server.handleClient();
	int numClients = webSocket.connectedClients();
	if(numClients) {
		if(millis() > lastTx) {   // moderate the delivery of new messages - we simply cannot send every pass of the main loop!
			lastTx = millis() + 1000;

			JsonObject& root = jsonBuffer.createObject();
			root["CurrentTemp"] = getActualTemperature();
			root["RunState"] = getHeaterInfo().getRunState();
			root["DesiredTemp"] = getHeaterInfo().getTemperature_Desired();

      String jsonToSend;
			root.printTo(jsonToSend);
      webSocket.broadcastTXT(jsonToSend);

/*			char msg[16];
			sprintf(msg, "CurrentTemp,%d",getActualTemperature());
			webSocket.broadcastTXT(msg);
			bTxWebData = true;
      sprintf(msg, "PowerState,%i",getHeaterInfo().getRunState());
      webSocket.broadcastTXT(msg);
		 sprintf(msg, "TempDesired,%i",getHeaterInfo().getTemperature_Desired());
      webSocket.broadcastTXT(msg);*/
		}
		return true;
	}
  return false;
}

void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) {
	if (type == WStype_TEXT) {
		char cmd[16];
		memset(cmd, 0, 16);
		for (int i = 0; i < length && i < 15; i++) {
			cmd[i] = payload[i];
		}
//    Serial.println(cmd);
		Command_Interpret(cmd);  // send to the main heater controller decode routine
		bRxWebData = true;
  }
}

bool hasWebClientSpoken(bool reset)
{
	bool retval = bRxWebData;
	if(reset)
  	bRxWebData = false;
	return retval;
}

bool hasWebServerSpoken(bool reset)
{
	bool retval = bTxWebData;
	if(reset)
		bTxWebData = false;
	return retval;
}