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#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>
#include <IRremoteESP8266.h>
#include <IRrecv.h>
#include <IRutils.h>
#include <SparkFun_OWire_Arduino_Library.h>
#include "setup.h"
#include "remote.h"

/* 
MPlaty's BLE Light Poles. 

Make sure to change things in the setup.h file! (DO NOT MODIFY ANYTHING IN THIS FILE)
*/

// The BLE Server
BLEServer* Server = NULL;

// The BLE Server Characteristics
BLECharacteristic* cPower = NULL;
BLECharacteristic* cColour = NULL;
BLECharacteristic* cMode = NULL;

/* Classes */

// sets up the status led
OWIRE oStatus;

// sets up the ir remote handler
Remote irRemote(R20KEYSPLIT);
// Sets up the IRRecv class
IRrecv irRecv(IR_PIN);

// Not sure if this is required, further tests needed.
bool deviceConnected = false;
bool oldDeviceConnected = false;

// Storage for the clients, unsure if storing them is necessary, but could be for individually controlling them.
BLE2902* clientConfigDescriptors[4];

// the following 6 variables are all for the button. will try and shrink these, and label them
bool buttonPressed = false;
int buttonState = LOW;
int lastButtonState = LOW;
unsigned long lastDebounceTime = 0;
unsigned long debounceDelay = 50;

// the current brightness
int brightness = DEFAULT_BRIGHTNESS; 

class MyServerCallbacks : public BLEServerCallbacks {
    void onConnect(BLEServer* Server) {
        deviceConnected = true;
        BLEDevice::startAdvertising();
    }

    void onDisconnect(BLEServer* Server) {
        deviceConnected = false;
    }
};

void load_ble_server() {
  // Add a service to the server
  BLEService *sMain = Server->createService(S_MAIN_UUID);

  // Add the Power characteristic to the server
  cPower = sMain->createCharacteristic(
    C_POWER_UUID,
    BLECharacteristic::PROPERTY_READ |
    BLECharacteristic::PROPERTY_WRITE |
    BLECharacteristic::PROPERTY_NOTIFY |
    BLECharacteristic::PROPERTY_INDICATE
  );
  // Add the Colour characteristic to the server
  cColour = sMain->createCharacteristic(
    C_COLOUR_UUID,
    BLECharacteristic::PROPERTY_READ |
    BLECharacteristic::PROPERTY_WRITE |
    BLECharacteristic::PROPERTY_NOTIFY |
    BLECharacteristic::PROPERTY_INDICATE
  );
  // Add the Mode characteristic to the server
  cMode = sMain->createCharacteristic(
    C_MODE_UUID,
    BLECharacteristic::PROPERTY_READ |
    BLECharacteristic::PROPERTY_WRITE |
    BLECharacteristic::PROPERTY_NOTIFY |
    BLECharacteristic::PROPERTY_INDICATE
  );

  cPower->addDescriptor(new BLE2902());
  cColour->addDescriptor(new BLE2902());
  cMode->addDescriptor(new BLE2902());

  sMain->start();
}

void setup() {
  // Begin the Serial Communication
  Serial.begin(SERIAL_SPEED);
  // Setup the Status LED
  oStatus.begin(STATUS_LED_PIN, false);
  // Set the Colour of the status LED
  oStatus.setModeAndColor(OW_SOLID, OW_RED);
  // Set the power buttons' pinMode.
  pinMode(POWER_BUTTON_PIN, INPUT_PULLUP);
  // begin the IR reciever
  irRecv.enableIRIn();

  Serial.println("Booting up BLE Server...");

  // Create the BLE Device and name it
  BLEDevice::init("Light Pole Server");
  // Allow for multiple connections
  BLEDevice::setMTU(500);

  // Create and set the BLE Server variable
  Server = BLEDevice::createServer();
  // Set the BLE Server callback
  Server->setCallbacks(new MyServerCallbacks());
  // Creates, and attaches the Service and its characteristics to the Server.
  //load_ble_server();

  // Add a service to the server
  BLEService *sMain = Server->createService(S_MAIN_UUID);

  // Add the Power characteristic to the server
  cPower = sMain->createCharacteristic(
    C_POWER_UUID,
    BLECharacteristic::PROPERTY_READ |
    BLECharacteristic::PROPERTY_WRITE |
    BLECharacteristic::PROPERTY_NOTIFY |
    BLECharacteristic::PROPERTY_INDICATE
  );
  // Add the Colour characteristic to the server
  cColour = sMain->createCharacteristic(
    C_COLOUR_UUID,
    BLECharacteristic::PROPERTY_READ |
    BLECharacteristic::PROPERTY_WRITE |
    BLECharacteristic::PROPERTY_NOTIFY |
    BLECharacteristic::PROPERTY_INDICATE
  );
  // Add the Mode characteristic to the server
  cMode = sMain->createCharacteristic(
    C_MODE_UUID,
    BLECharacteristic::PROPERTY_READ |
    BLECharacteristic::PROPERTY_WRITE |
    BLECharacteristic::PROPERTY_NOTIFY |
    BLECharacteristic::PROPERTY_INDICATE
  );

  cPower->addDescriptor(new BLE2902());
  cColour->addDescriptor(new BLE2902());
  cMode->addDescriptor(new BLE2902());

  sMain->start();
  
  // Start advertising
  BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
  pAdvertising->addServiceUUID(S_MAIN_UUID);
  pAdvertising->setScanResponse(false);
  pAdvertising->setMinPreferred(0x0);

  delay(1000);
  BLEDevice::startAdvertising();
}

decode_results results;

void ir_loop() {
  
  // checks if there is IR Data
  if (irRecv.decode(&results)) {
    Serial.println("IR RECIEVED");
    serialPrintUint64(results.value, HEX);
    serialPrintUint64(results.value, HEX);
    Serial.println("");
    // sets the raw decoded data to the data variable.
    buttonData button = irRemote.call(results.value);

    if (button.type != R_EMPTY && button.button != RB_ERROR) {
      if (button.type == R_POWER) {
        if (button.button == RB_ON) {
          Serial.println("Power ON");
          uint8_t data = (uint8_t)brightness;
          cPower->setValue(&data, 1);
          cPower->notify();
        } else if (button.button == RB_OFF) {
          Serial.println("Power OFF");
          uint8_t data = 0x00;
          cPower->setValue(&data, 1);
          cPower->notify();
        }
      }
    }
    irRecv.resume();
  }
}

void power_button_loop() {
  int reading = digitalRead(POWER_BUTTON_PIN);

    if (reading != lastButtonState) {
        lastDebounceTime = millis();
    }

    if ((millis() - lastDebounceTime) > debounceDelay) {
        if (reading != buttonState) {
            buttonState = reading;
            if (buttonState == HIGH) {
              Serial.println("Button pressed");
              if (deviceConnected) {
                uint8_t data = 0xFF;
                //pCharacteristic->setValue(&data, 1); // Set the value as a byte array
                //pCharacteristic->notify();
                Serial.println("Data updated!");
              }
              buttonPressed = true;
            } else {
              Serial.println("Button released");
              if (deviceConnected) {
                uint8_t data = 0x00;
                //pCharacteristic->setValue(&data, 1); // Set the value as a byte array
                //pCharacteristic->notify();
                Serial.println("Data updated!");
              }
              buttonPressed = false;
            }
        }
    }
  
  lastButtonState = reading;
}

void loop() {
  ir_loop();

  if (!deviceConnected && oldDeviceConnected) {
    Server->startAdvertising();
    Serial.println("Start advertising");
    oldDeviceConnected = deviceConnected;
  }

  if (deviceConnected && !oldDeviceConnected) {
    // Actions to perform on connecting
    oldDeviceConnected = deviceConnected;
  }
}

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#ifndef Setup_h
#define Setup_h

/* 
The setup file for the Light Pole!
*/

/*    Server Only    */

/* PINS */

// IR_PIN - The pin the IR Reciever is connected too.
#define IR_PIN 3 // 34, 3
// REMOTE_TYPE - The type of IR remote that you will use.
#define REMOTE_TYPE 1


/* SETTINGS */

// DEFAULT_BRIGHTNESS - The brightness that the server will use on startup. (must be 0 to 255)
#define DEFAULT_BRIGHTNESS 127



/*    Client Only    */

// STRIP_LENGTH - how many leds are in the strips.
#define STRIP_LENGTH 36
// STRIP_TYPE - how many strips you have, 1 (STRIP_PIN_1), 2 (STRIP_PIN_1, STRIP_PIN_2) or 4 (all STRIP_PIN numbers). makes the effects look better.
#define STRIP_TYPE 4
// STRIP_PIN_X - the strip light pins. 
#define STRIP_PIN_1 4
#define STRIP_PIN_2 5
#define STRIP_PIN_3 6
#define STRIP_PIN_4 7

/*    Both    */

/* PINS */

// STATUS_LED_PIN - The pin the status led is connected too.
#define STATUS_LED_PIN 4 // 13, 4
// POWER_BUTTON_PIN - The pin the power button is attached too.
#define POWER_BUTTON_PIN 5 // 27, 5


/* BLE - UUID'S */

// S_MAIN_UUID - The services' main UUID
#define S_MAIN_UUID "00c6273c-70d9-11ee-b962-0242ac120002"
// C_POWER_UUID - The power UUID, where 00 is off, and 01, to FF is the brightness
#define C_POWER_UUID "068ed628-70d9-11ee-b962-0242ac120002"
// C_COLOUR_UUID - The colour UUID, which sets the colour of the lights, or the mode.
#define C_COLOUR_UUID "09e45eba-70d9-11ee-b962-0242ac120002"
// C_MODE_UUID - The mode UUID, which sets the mode of the lights. If its 00, then it just shows the default colour.
#define C_MODE_UUID "09e45eba-70d9-11ee-b962-0242ac120002"


/* DEBUG */

// SERIAL_SPEED - The speed at which the serial data is transmitted.
#define SERIAL_SPEED 115200
// ENABLE_DEBUG - If true, debug messages will be sent. If disabled, only serious errors will be sent.
#define ENABLE_DEBUG true

#endif

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#ifndef Remote_h
#define Remote_h

#include <Arduino.h>

enum RemoteType {
  R20KEYSPLIT,
  R24KEYWHITE,
  R44KEYWHITE
};

enum remoteButtonType {
  RB_ERROR,
  RB_OFF,
  RB_ON,
  RB_RED,
  RB_GREEN,
  RB_BLUE,
  RB_ORANGE,
  RB_YELLOW,
  RB_LIME,
  RB_DARK_GREEN,
  RB_CYAN,
  RB_AQUA,
  RB_DARK_BLUE,
  RB_PURPLE,
  RB_PINK,
  RB_WHITE,
  RB_FADE,
  RB_JUMP,
  RB_FIRE,
  RB_RESET,
  RB_BRIGHTNESS_DOWN,
  RB_BRIGHTNESS_UP
};

enum remoteResponseType {
  R_EMPTY,
  R_POWER,
  R_COLOUR,
  R_MODE,
  R_SETTING
};

struct buttonData {
  String name;
  remoteButtonType button;
  remoteResponseType type;
};

class Remote {
public:
  Remote(RemoteType type);
  buttonData call(long type);

private:
  RemoteType type;
};

#endif

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#include "Remote.h"

buttonData twentyKeySplit(long key_data) {
  buttonData data;
  switch (key_data) {
    case 0xFFA25D: // on
      data.name = "On";
      data.button = RB_ON;
      data.type = R_POWER;
      break;

    case 0xFFE21D: // off
      data.name = "Off";
      data.button = RB_OFF;
      data.type = R_POWER;
      break;

    case 0xBB44FF00: // red
      data.name = "Red";
      data.button = RB_RED;
      data.type = R_COLOUR;
      break;

    case 0xBF40FF00: // green
      data.name = "Green";
      data.button = RB_GREEN;
      data.type = R_COLOUR;
      break;

    case 0xBC43FF00: // blue
      data.name = "Blue";
      data.button = RB_BLUE;
      data.type = R_COLOUR;
      break;

    case 0xF807FF00: // orange
      data.name = "Orange";
      data.button = RB_ORANGE;
      data.type = R_COLOUR;
      break;

    case 0xEA15FF00: // yellow
      data.name = "Yellow";
      data.button = RB_YELLOW;
      data.type = R_COLOUR;
      break;

    case 0xF609FF00: // lime
      data.name = "Lime";
      data.button = RB_LIME;
      data.type = R_COLOUR;
      break;

    case 0xE916FF00: // dark green
      data.name = "Dark Green";
      data.button = RB_DARK_GREEN;
      data.type = R_COLOUR;
      break;

    case 0xE619FF00: // cyan
      data.name = "Cyan";
      data.button = RB_CYAN;
      data.type = R_COLOUR;
      break;

    case 0xF20DFF00: // aqua
      data.name = "Aqua";
      data.button = RB_AQUA;
      data.type = R_COLOUR;
      break;

    case 0xF30CFF00: // dark blue
      data.name = "Dark Blue";
      data.button = RB_DARK_BLUE;
      data.type = R_COLOUR;
      break;

    case 0xE718FF00: // purple
      data.name = "Purple";
      data.button = RB_PURPLE;
      data.type = R_COLOUR;
      break;

    case 0xA15EFF00: // pink
      data.name = "Pink";
      data.button = RB_PINK;
      data.type = R_COLOUR;
      break;

    case 0xF708FF00: // white
      data.name = "White";
      data.button = RB_WHITE;
      data.type = R_COLOUR;
      break;

    case 0xE31CFF00: // fade
      data.name = "Fade";
      data.button = RB_FADE;
      data.type = R_MODE;
      break;

    case 0xA55AFF00: // jump
      data.name = "Jump";
      data.button = RB_JUMP;
      data.type = R_MODE;
      break;

    case 0xBD42FF00: // reset
      data.name = "Reset";
      data.button = RB_RESET;
      data.type = R_SETTING;
      break;

    case 0xAD52FF00: // down
      data.name = "Brightness Down";
      data.button = RB_BRIGHTNESS_DOWN;
      data.type = R_SETTING;
      break;

    case 0xB54AFF00: // up
      data.name = "Brightness Up";
      data.button = RB_BRIGHTNESS_UP;
      data.type = R_SETTING;
      break;

    default:
      data.name = "Unknown";
      data.button = RB_ERROR;
      data.type = R_EMPTY;
      break;
  }
  return data;
}

/*
buttonData twentyFourKeyWhite(int type) {
  buttonData data;
  switch (type) {
    case 0xF609FF00: // up
      data.name = "brightness_up";
      data.type = SETTING
      break;
      
    case 0xE21DFF00: // down
      data.name = "brightness_down";
      data.type = SETTING
      break;

    case 0xE01FFF00: // off
      data.name = "off";
      data.type = POWER
      break;

    case 0xF20DFF00: // on
      data.name = "on";
      data.type = POWER
      break;

    case 0xE619FF00: // red
      data.name = "red";
      data.type = COLOUR
      break;

    case 0xE41BFF00: // green
      data.name = "green";
      data.type = COLOUR;
      break;

    case 0xEE11FF00: // blue
      data.name = "blue";
      data.type = COLOUR;
      break;
    
    case 0xEA15FF00: // white
      data.name = "white";
      data.type = COLOUR;
      break;


    case 0xF807FF00: // orange
      data.name = "orange";
      data.type = COLOUR;
      break;

    case 0xF609FF00: // lime
      data.name = "lime";
      data.type = COLOUR;
      break;

    case 0xE916FF00: // light blue
      data.name = "light_blue";
      data.type = COLOUR;
      break;
    
    case 0xEA15FF00: // flash
      data.name = "jump"; 
      data.type = MODE
      break;

    case 0xE619FF00: // cyan
      data.name = "cyan";
      data.type = COLOUR;
      break;

    case 0xF20DFF00: // aqua
      data.name = "aqua";
      data.type = COLOUR
      break;

    case 0xF30CFF00: // dark blue
      data.name = "dark_blue";
      data.type = COLOUR
      break;

    case 0xE718FF00: // purple
      data.name = "purple";
      data.type = COLOUR
      break;

    case 0xA15EFF00: // pink
      data.name = "pink";
      data.type = COLOUR
      break;

    case 0xE31CFF00: // fade
      data.name = "fade";
      data.type = MODE
      break;

    case 0xA55AFF00: // jump
      data.name = "jump";
      data.type = MODE
      break;

    case 0xBD42FF00: // reset
      data.name = "reset";
      data.type = SETTING
      break;

    
  }
  return data;
}*/

Remote::Remote(RemoteType type) {
  this->type = type;
}

buttonData Remote::call(long key_data) {
  // Initialize the LED strip based on the type
  buttonData return_data;
  switch (type) {
    case R20KEYSPLIT:
      return_data = twentyKeySplit(key_data);
      break;
    case R24KEYWHITE:
      // return_data = twentyFourKeyWhite(type);
      break;
    case R44KEYWHITE:
      // Initialize SK6812 strip
      // Your initialization code here
      break;
  }
  return return_data;
}