/*************************************************************************************** 

                      Ten LEDs Lighting for One Knob Boards

                    Code Made for DAC Power Button Including
                   LEDs Animation for DAC Status Information

                            Author: Corentin Mornet
                              Project: echo DAC
                            Date: January 18th 2017
                            
  Inspired by: http://www.tweaking4all.com/hardware/arduino/adruino-led-strip-effects/

  http://www.tweaking4all.com/forums/topic/fastleds-fun-with-a-broken-switchcase/

***************************************************************************************/

#include "FastLED.h"
#define NUM_LEDS 10                       // Number of LEDs used
#define PIN_LEDS 6                        // Pin used for LEDs data
#define SWITCH 4                          // Pin used for On/Off Switch
#define RPI_CONNECTED 2                   // Pin used for NAS connection feedback from RaspberryPi
CRGB leds[NUM_LEDS];

const int speedDelay = 50;
const int startupColorR = 0xFF;           // Start-up color, Red LED
const int startupColorG = 0xFF;           // Start-up color, Green LED
const int startupColorB = 0xFF;           // Start-up color, Blue LED
const int connectedColorR = 0xFF;         // Connected color, Red LED
const int connectedColorG = 0xFF;         // Connected color, Green LED
const int connectedColorB = 0xFF;         // Connected color, Blue LED
const float increment = 0.006;            // Modifies animation speed
const float steadyBrightness = 1.8*PI;    // Actual brightness used in functions; 1.5*PI is 0% and 2.5*PI is 100% brightness
const int animation = 4;                  // Select animation when NAS connection is established; 0: Twinkle, 1: ColorWipe, 2: TheaterChase, 3: RunningLights, 4: Cylon
int steps = 0;
boolean connectedNAS = false;

void setup()
{
  FastLED.addLeds<WS2811, PIN_LEDS, GRB>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  pinMode(SWITCH,INPUT);                // Input from selector switch
  pinMode(RPI_CONNECTED,INPUT);         // Input from RaspberryPi
  
  setAll(0x00, 0x00, 0x00);             // Starts with all turned off LEDs
}

void loop()
{
  connectedNAS = digitalRead(RPI_CONNECTED);
  if (digitalRead(SWITCH) == HIGH)
  {
    if (steps == 0)                       // STEP 1 : progressive start of the start-up color lighting
    {
      startLighting(startupColorR, startupColorG, startupColorB);
      delay(20*speedDelay);               // 1s delay
      steps = 1;
    }
    else
    {
      if (steps == 1)                     // STEP 2 : LEDs animation while RapberryPi Starts and connects to NAS server
      {
        if (connectedNAS == false)
        {
          if (animation == 0) 
          {
            twinkleLighting(connectedColorR, connectedColorG, connectedColorB, 10, true);
          }
          else
          {
            if (animation == 1)
            {
              colorWipeLighting(connectedColorR, connectedColorG, connectedColorB);
              colorWipeLighting(0x00, 0x00, 0x00);
            }
            else
            {
              if (animation == 2)
              {
                theaterChaseLighting(connectedColorR, connectedColorG, connectedColorB);
              }
              else
              {
                if (animation == 3)
                {
                  runningLightsLighting(connectedColorR, connectedColorG, connectedColorB);
                }
                else
                {
                  if (animation == 4)
                  {
                    cylonLighting(connectedColorR, connectedColorG, connectedColorB, 1);
                  }
                }
              }
            }
          }
        }
        else
        {
          setAll(0x00, 0x00, 0x00);
          delay(20*speedDelay); // 1s delay
          steps = 2;
        }
      }
      else
      {
        if (steps ==  2)                  // STEP 3 : Animation of the connected color lighting depending on animation selected in constant
        {
          if (connectedNAS == true)
          {
            startLighting(connectedColorR, connectedColorG, connectedColorB);
            delay(20*speedDelay);         // 1s delay
            steps = 3;
          }
          else
          {
            steps = 1;
          }
        }
        else
        {
          if (steps == 3)                 // STEP 4 :steady connected color lighting while ready
          {
            if (connectedNAS == true)
            {
              steadyLighting(connectedColorR, connectedColorG, connectedColorB);
            }
            else
            {
              stopLighting(connectedColorR, connectedColorG, connectedColorB);
              delay(20*speedDelay);       // 1s delay
              steps = 1;
            }

          }
        }
      }
    }
  }
  else
  {
    setAll(0x00, 0x00, 0x00);
    steps = 0;
  }
}