Auto & Manual Web Temp Fan Control

#include <DigiFi.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <Timer.h>

#define ONE_WIRE_BUS 24
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress insideThermometer, outsideThermometer;

int AUTO = 1;
String control;

Timer t;

DigiFi server;

//TEMP ALARM
void newAlarmHandler(uint8_t* deviceAddress)
{
  Serial.println("Alarm Handler Start");
  printAlarmInfo(deviceAddress);
  printTemp(deviceAddress);
  Serial.println();
  Serial.println("Alarm Handler Finish");
}

void printCurrentTemp(DeviceAddress deviceAddress)
{
  printAddress(deviceAddress);
  printTemp(deviceAddress);
  Serial.println();
}

void printAddress(DeviceAddress deviceAddress)
{
  Serial.print("Address: ");
  for (uint8_t i = 0; i < 8; i++)
  {
    if (deviceAddress[i] < 16) Serial.print("0");
    Serial.print(deviceAddress[i], HEX);
  }
  Serial.print(" ");
}

void printTemp(DeviceAddress deviceAddress)
{
  float tempC = sensors.getTempC(deviceAddress);
  if (tempC != DEVICE_DISCONNECTED)
  {
    Serial.print("Current Temp C: ");
    Serial.print(tempC);
  }
  else Serial.print("DEVICE DISCONNECTED");
  Serial.print(" ");
}

void printAlarmInfo(DeviceAddress deviceAddress)
{
  char temp;
  printAddress(deviceAddress);
  temp = sensors.getHighAlarmTemp(deviceAddress);
  Serial.print("High Alarm: ");
  Serial.print(temp, DEC);
  Serial.print("C");
  Serial.print(" Low Alarm: ");
  temp = sensors.getLowAlarmTemp(deviceAddress);
  Serial.print(temp, DEC);
  Serial.print("C");
  Serial.print(" ");
}

//SETUP
void setup() {

  Serial.begin(9600);
  server.begin(9600);
  sensors.begin();
  t.every(30 * 1000, readTemp); // 10 minutes

   // locate devices on the bus
  Serial.print("Found ");
  Serial.print(sensors.getDeviceCount(), DEC);
  Serial.println(" devices.");

  // search for devices on the bus and assign based on an index
  if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0");
  if (!sensors.getAddress(outsideThermometer, 1)) Serial.println("Unable to find address for Device 1");

  Serial.print("Device insideThermometer ");
  printAlarmInfo(insideThermometer);
  Serial.println();

  Serial.print("Device outsideThermometer ");
  printAlarmInfo(outsideThermometer);
  Serial.println();

  // set alarm ranges
  Serial.println("Setting alarm temps...");
  sensors.setHighAlarmTemp(insideThermometer, 27);
  sensors.setLowAlarmTemp(insideThermometer, 10);
  sensors.setHighAlarmTemp(outsideThermometer, 27);
  sensors.setLowAlarmTemp(outsideThermometer, 10);

  Serial.print("New insideThermometer ");
  printAlarmInfo(insideThermometer);
  Serial.println();

  Serial.print("New outsideThermometer ");
  printAlarmInfo(outsideThermometer);
  Serial.println();

  // attach alarm handler
  sensors.setAlarmHandler(&newAlarmHandler);

  pinMode(7,OUTPUT);
  pinMode(6,OUTPUT);
  pinMode(5,OUTPUT);
  pinMode(4,OUTPUT);

  digitalWrite(7,HIGH);
  digitalWrite(6,LOW);
  digitalWrite(5,LOW);
  digitalWrite(4,LOW);

  //DigiX trick - since we are on serial over USB wait for character to be entered in serial terminal
  while(!Serial.available()){
    Serial.println("Enter any key to begin");
    delay(1000);
  }

  Serial.println("Starting");
  Serial.println("wifi inited");

  while (server.ready() != 1)
  {
    Serial.println("Error connecting to network");
    delay(15000);
  }

  Serial.println("Connected to wifi!");
  Serial.print("Server running at: ");
  String address = server.server(8080);//sets up server and returns IP
  Serial.println(address);

}

//LOOP
void loop() {
  if ( server.serverRequest()){
    if( findOutHowManyCharInAString( server.serverRequestPath() , '=') !=0){
      getUrlVariablesFromWifiString( server.serverRequestPath() );
      server.serverResponse(htmlReturn()); //need relay so brouser dont hang
    }
    else
      server.serverResponse(htmlPage()); //defaults to 200
  }
  t.update();
}

//TEMP&TIMER
void readTemp()
{
   // ask the devices to measure the temperature
  sensors.requestTemperatures();

  // if an alarm condition exists as a result of the most recent
  // requestTemperatures() request, it exists until the next time
  // requestTemperatures() is called AND there isn't an alarm condition
  // on the device
  if (sensors.hasAlarm(insideThermometer)){
    float tempC = sensors.getTempC(insideThermometer);
    if (tempC != DEVICE_DISCONNECTED) {
        if (tempC >= sensors.getHighAlarmTemp(insideThermometer)) {
            Serial.println("Oh noes!  There is at least one alarm on the bus.");
            {
            if (AUTO == 1)
              {
              analogWrite( 11, 255 );
              }
            }
         }
        if (tempC <= sensors.getLowAlarmTemp(insideThermometer)) {
            // LOW alarm
         }
    }
  }

  // call alarm handler function defined by sensors.setAlarmHandler
  // for each device reporting an alarm
  sensors.processAlarms();

  if (!sensors.hasAlarm())
  {
    // just print out the current temperature
    printCurrentTemp(insideThermometer);
    printCurrentTemp(outsideThermometer);
    {
    if (AUTO == 1)
            {
            analogWrite( 11, 0 );
            }
    }
  }
}

//WEB&WIFI

void runVariableCommand(String string){
 if(string.charAt(0)=='d'){ // letter d = Digital

   int endOfVariableName = string.indexOf('=');
   int booleanValue = stringToInt(string.substring(endOfVariableName+1,string.length()));
   String variableName   = string.substring(0,endOfVariableName);
   digitalWrite( stringToInt( variableName.substring(1,variableName.length()) ), booleanValue );
   Serial.print("digital Pin ");
   Serial.print(stringToInt( variableName.substring(1,variableName.length()) ));
   Serial.print(" to ");
   Serial.println(booleanValue);
 }
 if(string.charAt(0)=='a'){ // letter a = Analog
   int endOfVariableName = string.indexOf('=');
   int booleanValue = stringToInt(string.substring(endOfVariableName+1,string.length()));
   String variableName   = string.substring(0,endOfVariableName);
   analogWrite( stringToInt( variableName.substring(1,variableName.length()) ), booleanValue );
   Serial.print("Analog Pin ");
   Serial.print(stringToInt( variableName.substring(1,variableName.length()) ));
   Serial.print(" to ");
   Serial.println(booleanValue);
 }
 if(string.charAt(0)=='f'){ // letter a = Analog
   int endOfVariableName = string.indexOf('=');
   int booleanValue = stringToInt(string.substring(endOfVariableName+1,string.length()));
   String variableName   = string.substring(0,endOfVariableName);
   float calc = ((float) 255) / 100;
   calc = calc * booleanValue;
   booleanValue = calc;
   analogWrite( stringToInt( variableName.substring(1,variableName.length()) ), booleanValue );
   Serial.print("Fan speed Pin ");
   Serial.print(stringToInt( variableName.substring(1,variableName.length()) ));
   Serial.print(" to ");
   Serial.println(booleanValue);
 }
 if(string.charAt(0)=='m'){ // letter d = Digital

   int endOfVariableName = string.indexOf('=');
   int booleanValue = stringToInt(string.substring(endOfVariableName+1,string.length()));
   String variableName   = string.substring(0,endOfVariableName);
   digitalWrite( stringToInt( variableName.substring(1,variableName.length()) ), booleanValue );
   AUTO = booleanValue;
   Serial.print("AUTO =");
   Serial.println(booleanValue);
 }
}

boolean getUrlVariablesFromWifiString( String data ){
    Serial.print("Request = ");
    Serial.println(data);
    if(data.length()>=0){
      getEachVariable(data.substring(data.indexOf('?')+1, data.length()));
      return true;
    }else
    return false;

}

// split get Into smaller Chunks ie. ?d12=1&d13=0 into d12=1 and d13=0
String splitVariablesUP( String *str , String strTemp, int strLength ){

  String singleVariableAsString;
  int startIndex=0;
  //finds the first index of &
  int endIndex=strTemp.indexOf('&');
  // get the variable parts into a string
  singleVariableAsString = strTemp.substring( startIndex , endIndex );

  //now delete variable from reference string
  *str = strTemp.substring( endIndex+1 , strLength );// endIndex +1 is so we loose the & char as we do not need it
  return singleVariableAsString;
}

// break down GET sting into each variable + value
void getEachVariable(String strTemp){
  // returns variable count
  int variableCount = findOutHowManyCharInAString( strTemp , '=');
   Serial.print("Variable Count = ");
   Serial.println(variableCount);

  // loops through each variable
  for(int i=0;i<variableCount;i++){
   // assigns each variable and value to a string array
   runVariableCommand(splitVariablesUP( &strTemp , strTemp , strTemp.length() ));
  }
}
//return int value from string
int stringToInt(String thisString) {
  int i, value, length;

  length = thisString.length();

  char blah[(length+1)];

  for(i=0; i<length; i++) {
    blah[i] = thisString.charAt(i);
  }
  blah[i]=0;

  value = atoi(blah);

  return value;
}
//return how many variables are in the GET
int findOutHowManyCharInAString(String str, char findChar){
  int positionChar = 0;
  int count=0;
  while(positionChar != -1){
   positionChar = str.indexOf( findChar , positionChar+1 );
   if(positionChar!=-1)
    count++;
  }
  return count;
}

// html code
String htmlPage(){

 String startHtml = "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'><html xmlns='http://www.w3.org/1999/xhtml'><head><meta http-equiv='Content-Type' content='text/html;charset=utf-8' /><meta http-equiv='refresh' content='30'><title>Arduino DigiX Wifi</title>";

 String jquery = "\n<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js'></script>"
                 "\n<script>\n"
                 "\n$(function(){"
                  "\n$('.relay').click( function(){"
                   "\najaxCallScript( $(this).attr('pin') + '=' + $(this).attr('val'));"
                  "\n});"

                " \n$('.selector').change(function(){\najaxCallScript( \n$(this).attr('pin') + '=' + $(this).val());"
                 "\n});"
                "\n});"
                 "\n</script>";

 String ajax = "\n<script>\nfunction ajaxCallScript( get ){"

    "\nfile = '?' + get;"

    "\nif (window.XMLHttpRequest)"
      "\n{// code for IE7+, Firefox, Chrome, Opera, Safari"
      "\nxmlhttp=new XMLHttpRequest();"
      "\n}"
    "\nelse"
      "\n{// code for IE6, IE5"
      "\nxmlhttp=new ActiveXObject('Microsoft.XMLHTTP');"
      "\n}"
    "\nxmlhttp.onreadystatechange=function(){"

    "\nif (xmlhttp.readyState==4 && xmlhttp.status==200){"
        "\ndocument.getElementById(elementName).innerHTML = 'done';}"
      "\nelse"
       "\ndocument.getElementById(elementName).innerHTML = 'Sent';"
      "\n}"
    "\nxmlhttp.open('GET',file,true);"
    "\nxmlhttp.send();"
        "\n}\n</script>";

 String javascript = "<script LANGUAGE=\"JavaScript\">\n<!--\nvar count="+String(30+1)+";\nvar counter=setInterval(timer, 1000);\nfunction timer(){\ncount=count-1;\nif(count < 0)\n{\nclearInterval(counter);\nreturn;\n}\ndocument.getElementById(\"timer\").innerHTML=count;\n}\n--></script>";

 String temphtm = "<br>insideThermometer =" + (String)sensors.getTempC(insideThermometer);
{
if (AUTO == 1)
  control =    "<br><lable>AUTO<button class='relay' pin='m1' val='0'>HANDMATIG</button>"
               "<br>Refresh in: <span id=\"timer\"></span>";
   else
  control =    "<br><lable>HANDMATIG<button class='relay' pin='m1' val='1'>AUTO</button>"
               "<br><lable>Digital Pin 4<button class='relay' pin='d4' val='0'>LOW</button><button class='relay' pin='d4' val='1'>HIGH</button></label>"
               "<br><lable>Analog Pin 1<select class='selector' pin='a1'><option>0</option><option>50</option><option>100</option><option>150</option><option>200</option><option>255</option></select>"
               "<br><lable>Fan 1<select class='selector' pin='f11'><option>0</option><option>50</option><option>75</option><option>100</option></select>"
               "<br>Refresh in: <span id=\"timer\"></span>";
}
 String endHtml = "\n</body>\n</html>";

 return startHtml+jquery+ajax+javascript+temphtm+control+endHtml;
}

String htmlReturn(){
 return "hello";

}