/*
 * 
 * Benötigte Arduino version 1.5.4
 * 
 * 
 * LED Bilderrahmen übertragung HEX Code als String um die X-te LED mit Y-te Farbe anzuzeigen

FHEM Mit Farbübertragung:
Gerät mit FHEM verbinden
Name hier: LEDRahmen
Dummy Hinzufügen
define LEDRahmenSwitch dummy
Notify Hinzufügen
define LEDRahmenSwitchNotify notify LEDRahmenSwitch.* { sendLEDColor($EVTPART0, $EVTPART1) }
in 99_myUtils.pm Methode hinzufügen


sub sendLEDColor($$){
  my ($stat,$val) = @_;
  my $tmp;
  $tmp .= changeLengthTo(hexstr_to_signed32int(substr($val,0,2)),3);
  $tmp .= "-";
  $tmp .= changeLengthTo(hexstr_to_signed32int(substr($val,2,2)),3);
  $tmp .= "-";
  $tmp .= changeLengthTo(hexstr_to_signed32int(substr($val,4,6)),3);

  #my $m = hexstr_to_signed32int($tmp);
  #Log 1, "MeinE Testmethode";
  #Log 1, $;
  fhem("set LEDRahmen status".$stat." ".$tmp."");


}

sub changeLengthTo($$){
  my($str,$toLength) = @_;
  my $tmpstr;
  for(my $i = (length($str)+1); $i <= $toLength; $i++){
    $tmpstr.= "0";
  }
  return $tmpstr.$str;
}

sub hexstr_to_signed32int($) {
    my ($hexstr) = @_;
    die "Invalid hex string: $hexstr"
        if $hexstr !~ /^[0-9A-Fa-f]{1,8}$/;
 
    my $num = hex($hexstr);
    return $num >> 31 ? $num - 2 ** 32 : $num;
}

///////////AUFRUF zur ANZEIGE in FHEM //////
////////////////////////////////////////////
//// set LEDRahmenSwitch 7 00FF00 //////////
////////////////////////////////////////////
//Definition set <NAMEDUMMY> <LEDID> <FarbeInHex> //
////////////////////////////////////////////
funktion/ Ablauf:
 Farbe wird in Fhem in seine RGB werte zerlegt
 diese Werte werden als Int umgerechnet
 dann mit   -    separiert
 und als String an den Arduino übertragen
 BSP FF00FF:    255-0-255
 Im Arduino wird es als String Empfangen
 mit der Methode getValue in die Einzelteile zerlegt
 dann mittels   .toInt() als Zahl umgerechnet (typenkonvertierung)
 und dann mit
 leds[LEDID].r = Wert
 angesprochen und mit FastLED.show(); angezeigt.
*/
///////////////////////////////////////////////////////////////////////////


#include <MySensor.h>
#include <SPI.h>
#include <EEPROM.h>
#include <MyTransportNRF24.h>
#include <MyHwATMega328.h>
#include <RemoteReceiver.h>
#include <RemoteTransmitter.h>
#include <InterruptChain.h>

#include "FastLED.h"
#define DATA_PIN 3
#define CLOCK_PIN 13
#define NUM_LEDS 19
CRGB leds[NUM_LEDS];


#define NUMBER_OF_OUTLETS 99
#define SN "LEDRahmenEG"
#define SV "1.7"

const byte SC_CHILD_ID = 0 ;
//unsigned long receivedCode = 0 ;


MySensor gw;
MyMessage scene_on(SC_CHILD_ID, V_LEVEL);
MyMessage scene_off(SC_CHILD_ID, V_LEVEL);

void setup() {
  Serial.begin(115200);
  gw.begin(incomingMessage);
  gw.sendSketchInfo(SN, SV);
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);

  //TEST
  //leds[9].g=1;
  //leds[9].b=255;
  //leds[10].r=255;
  //leds[11].b=255;
  //FastLED.show();

  //  Create a child device for each outlet
  for (int sensor = 1; sensor <= NUMBER_OF_OUTLETS; sensor++) {
    gw.present(sensor, S_LIGHT);
    delay(2);
  }
}

void loop() {
  gw.process();
}

String getValue(String data, char separator, int index) {
  int found = 0;
  int strIndex[] = {0, -1};
  int maxIndex = data.length() - 1;

  for (int i = 0; i <= maxIndex && found <= index; i++) {
    if (data.charAt(i) == separator || i == maxIndex) {
      found++;
      strIndex[0] = strIndex[1] + 1;
      strIndex[1] = (i == maxIndex) ? i + 1 : i;
    }
  }

  return found > index ? data.substring(strIndex[0], strIndex[1]) : "";
}

//command has been received from gateway
void incomingMessage(const MyMessage &message) {
  Serial.println(message.sensor);
  Serial.println(".......");
  Serial.println(message.getInt());
  if (message.type == V_LIGHT) {
    Serial.print("LED ID #: ");
    Serial.println(message.sensor);
    Serial.print("Color: ");
    Serial.println(message.getString());

    //receive String like 125-255-111 call getValue and split
    //.toInt() convert the String Number to int and would be assigned to the LED
    leds[message.sensor-1].r = getValue(message.getString(), '-', 0).toInt();
    leds[message.sensor-1].g = getValue(message.getString(), '-', 1).toInt();
    leds[message.sensor-1].b = getValue(message.getString(), '-', 2).toInt();
    FastLED.show();

    if (message.sensor == 99) {
      for (int i = 0; i < NUM_LEDS; ++i) {
        leds[i].r = getValue(message.getString(), '-', 0).toInt();
        leds[i].g = getValue(message.getString(), '-', 1).toInt();
        leds[i].b = getValue(message.getString(), '-', 2).toInt();
        FastLED.show();
      }
    }
  }
  delay(50);
}