/*
 * NEEDS ADAFRUIT NEOPIXEL & MYSENSORS LIBRARIES INSTALLED.
 *
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * http://www.mysensors.org/build/dimmer
 */

#include <MySensor.h>
#include <SPI.h>
#include <Adafruit_NeoPixel.h>

#define SN "LED Strip"
#define SV "1.0"
#define CHILD_ID 38
#define LED_PIN 5
#define RGB_PIN 6

// CHANGE THE LENGTH OF YOUR NEOPIXEL STRIP HERE. Default is 30.
Adafruit_NeoPixel strip = Adafruit_NeoPixel(30, RGB_PIN, NEO_GRB + NEO_KHZ800);
MySensor gw;

char rgb[7] = "ffffff"; // RGB value.
int currentLevel = 0;  // Current dimmer level.
MyMessage dimmerMsg(CHILD_ID, V_PERCENTAGE);
MyMessage lightMsg(CHILD_ID, V_STATUS);
MyMessage rgbMsg(CHILD_ID, V_RGB);

long long r2 = 0;
long long g2 = 0;
long long b2 = 0;

void setup()
{
  gw.begin(incomingMessage);
  gw.sendSketchInfo(SN, SV);
  gw.present(CHILD_ID, S_RGB_LIGHT);
  gw.present(CHILD_ID, S_DIMMER);
  gw.present(CHILD_ID, S_LIGHT);
  // Send initial values.
  gw.send(lightMsg.set(currentLevel > 0 ? 1 : 0));
  gw.send(dimmerMsg.set(currentLevel));
  gw.send(rgbMsg.set(rgb));

  Serial.begin(9600);
  strip.begin();
}

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

void incomingMessage(const MyMessage &message) {
  if (message.type == V_RGB) {
    // Retrieve the RGB value from the incoming message.
    // RGB LED not implemented, just a dummy print.
    String hexstring = message.getString();
    hexstring.toCharArray(rgb, sizeof(rgb));
    Serial.print("Changing color to ");
    Serial.println(rgb);
    gw.send(rgbMsg.set(rgb));

    long long number = strtol( &hexstring[0], NULL, 16);

    // Split them up into r, g, b values
    long long r = number >> 16;
    long long g = number >> 8 & 0xFF;
    long long b = number & 0xFF;

    for(int i=0;i<30;i++){

      // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
      strip.setPixelColor(i, strip.Color(r,g,b)); // Moderately bright green color.

      strip.show(); // This sends the updated pixel color to the hardware.
      delay(50);
    }



    r2 = r;
    g2 = g;
    b2 = b;
  }


  if (message.type == V_STATUS || message.type == V_PERCENTAGE) {
    // Retrieve the light status or dimmer level from the incoming message.
    int requestedLevel = atoi(message.data);

    // Adjust incoming level if this is a V_LIGHT update [0 == off, 1 == on].
    requestedLevel *= (message.type == V_STATUS ? 100 : 1);

    /*if (message.type == V_STATUS && message.data == "1") {
        requestedLevel = 100;
    }*/

    // Clip incoming level to valid range of 0 to 100
    requestedLevel = requestedLevel > 100 ? 100 : requestedLevel;
    requestedLevel = requestedLevel < 0   ? 0   : requestedLevel;

    int requestedLevelMapped = map(requestedLevel,0,100,0,255);

    //strip.setBrightness(requestedLevelMapped);
    //strip.show();

    // Change level value of LED pin.

    if (currentLevel < requestedLevelMapped) {
      if (currentLevel == 0) {
        strip.setBrightness(1);
        strip.show();
        currentLevel = 10;
        for(int i=0;i<30;i++){

          // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
          strip.setPixelColor(i, strip.Color(r2,g2,b2)); // Moderately bright green color.

          strip.show(); // This sends the updated pixel color to the hardware.

        }
        for(int i=currentLevel;i<=requestedLevelMapped;i++){
            strip.setBrightness(i);
            strip.show();
            delay(10);
        }
      } else {
        for(int i=currentLevel;i<=requestedLevelMapped;i++){
            strip.setBrightness(i);
            strip.show();
            delay(10);
        }
      }
    } else {
      for(int i=currentLevel;i>=requestedLevelMapped;i--){
        strip.setBrightness(i);
        strip.show();
        delay(10);
      }
    }

   currentLevel = requestedLevel;

    // Update the gateway with the current V_STATUS and V_PERCENTAGE.
    gw.send(lightMsg.set(currentLevel > 0 ? 1 : 0));
    gw.send(dimmerMsg.set(currentLevel));

    currentLevel = requestedLevelMapped;

    }
}