/*********************************************************************
 This is an example for our nRF52 based Bluefruit LE modules

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

#include <bluefruit.h>
#include <BLEHomekit.h>

#include "crypto/crypto.h"

#define CRYPTO_KEYFILE   "/adafruit/homekit/key"

BLEHomekit homekit;

uint8_t test_keys[] =
{
  0x55, 0x02, 0x29, 0x6A, 0x41, 0xB0, 0xF5, 0x35, 0x61, 0xFF, 0x82, 0x52, 0x2E, 0x77, 0xF0, 0xC6,
  0x1A, 0x2B, 0x6F, 0xD9, 0x4B, 0x48, 0x01, 0xCA, 0x37, 0xAF, 0x90, 0x74, 0x78, 0x07, 0xF8, 0xBE,
  0x58, 0xE8, 0xAD, 0x10, 0xB9, 0x69, 0xA3, 0x03, 0x0E, 0x42, 0x93, 0x2F, 0xF6, 0x3F, 0xE6, 0x40,
  0x71, 0x3F, 0x12, 0x63, 0x0B, 0x38, 0xEE, 0xF2, 0xDC, 0xCC, 0x1D, 0x24, 0x08, 0x70, 0xA3, 0xAD,
  0x8D, 0x16, 0xC0, 0x06, 0x24, 0x31, 0xCD, 0xB5, 0x34, 0xC8, 0x92, 0x3F, 0x3C, 0xF4, 0x43, 0x99,
  0xE1, 0x2B, 0x0C, 0x4B, 0xEE, 0xB6, 0xD9, 0xB6, 0xFD, 0x03, 0x43, 0xAD, 0x64, 0xB6, 0x6A, 0x19,
  0xDE, 0xA6, 0x34, 0x73, 0xC9, 0xB1, 0xB9, 0xBC, 0x5A, 0x09, 0xEF, 0x33, 0x1F, 0x32, 0xC9, 0xDD,
  0x71, 0xD3, 0xB7, 0x68, 0x89, 0xC6, 0x35, 0x36, 0x74, 0x9B, 0xE9, 0x84, 0x16, 0xF5, 0xAB, 0xCB,
  0x83, 0xA0, 0x77, 0x0E, 0xE2, 0x9A, 0x10, 0x36, 0xCC, 0xA9, 0xAE, 0xE3, 0x30, 0x8E, 0x24, 0x2F,
  0xCA, 0xC5, 0xAC, 0x37, 0x03, 0xF6, 0xEA, 0x1A, 0x22, 0x81, 0x61, 0x98, 0xCC, 0x76, 0x6D, 0x6E,
  0x46, 0x27, 0x50, 0x40, 0xD5, 0x15, 0xBB, 0xF3, 0x83, 0x08, 0x83, 0x3D, 0xDF, 0xED, 0x23, 0x20,
  0x70, 0x3B, 0xAB, 0xFD, 0x07, 0x0E, 0x92, 0x12, 0x10, 0xB0, 0xAE, 0x5F, 0xE2, 0x9E, 0x82, 0x33,
  0xD6, 0xE4, 0xA9, 0x70, 0x44, 0x6B, 0xE7, 0x7E, 0x4E, 0xA7, 0xF3, 0x63, 0xE3, 0x0F, 0xAB, 0x24,
  0xD4, 0xF4, 0x6A, 0xFC, 0x32, 0xDC, 0x4E, 0xA2, 0x4F, 0xBE, 0x25, 0x40, 0x49, 0xA7, 0xB1, 0x0F,
  0xF6, 0x4F, 0x1F, 0xFF, 0x08, 0x13, 0x46, 0x55, 0x45, 0x90, 0x6E, 0x09, 0xEA, 0x81, 0x60, 0x66,
  0x61, 0x49, 0x41, 0xC5, 0x23, 0xC6, 0xCE, 0xD8, 0xF4, 0xCB, 0x3D, 0x3B, 0xAC, 0x6E, 0x28, 0xDD,
  0x19, 0x58, 0x96, 0x3B, 0xC9, 0x39, 0x46, 0x46, 0xC4, 0x90, 0xCF, 0xFB, 0xAE, 0xFD, 0x30, 0xFB,
  0x36, 0x14, 0x36, 0xF4, 0x5E, 0xDD, 0x04, 0x2E, 0x3F, 0x5E, 0xCD, 0x71, 0x6B, 0x55, 0xD7, 0xF3,
  0x59, 0x24, 0x08, 0x58, 0x90, 0x71, 0x1F, 0x88, 0x53, 0xA0, 0xC1, 0xB8, 0x5F, 0x3D, 0x94, 0xF3,
  0xDB, 0xFC, 0x3F, 0x59, 0x41, 0xBF, 0x41, 0xC3, 0xC4, 0x70, 0x1A, 0x0C, 0x9C, 0x9A, 0x54, 0x5E,
  0xD3, 0xF0, 0x82, 0xD9, 0xF9, 0xCF, 0x0E, 0xC0, 0x53, 0xAD, 0x2E, 0xFA, 0x99, 0x1A, 0x57, 0x41,
  0x4F, 0x71, 0x2B, 0x47, 0x31, 0xB3, 0x18, 0xC4, 0xAE, 0xCD, 0xCC, 0xD4, 0x14, 0x75, 0x48, 0xB9,
  0x06, 0x81, 0xBA, 0xD9, 0x60, 0x63, 0xD4, 0x3A, 0x26, 0xE0, 0x64, 0xD1, 0xF7, 0xE4, 0x9A, 0xC1,
  0xC1, 0x06, 0xBC, 0x51, 0x85, 0xEC, 0x33, 0x63, 0xCD, 0x25, 0x34, 0x13, 0xBF, 0x5B, 0x65, 0x2D,
  0x6C, 0xCE, 0x6F, 0x22, 0x77, 0x12, 0x4C, 0x32, 0xFD, 0x72, 0x5C, 0x65, 0x5F, 0x28, 0x38, 0x6B,
  0x52, 0x87, 0x6A, 0xCF, 0x8A, 0x7F, 0xC1, 0x66, 0x03, 0x0C, 0x6F, 0x00, 0x82, 0xA7, 0xA8, 0x73,
  0x28, 0x17, 0x19, 0xD3, 0x26, 0x90, 0x70, 0xAF, 0x2B, 0x86, 0x34, 0x96, 0x91, 0xD3, 0xB7, 0x65,
  0x48, 0xB7, 0xCB, 0xEA, 0xC4, 0xB1, 0x78, 0x1C, 0x76, 0x51, 0x2F, 0x68, 0x89, 0x42, 0xCD, 0x89,
  0xA7, 0xE0, 0x8B, 0xD8, 0x8D, 0x1F, 0xDA, 0xA6, 0xCE, 0xD6, 0x71, 0x9E, 0x7D, 0x98, 0x59, 0x66,
  0xAD, 0x91, 0x68, 0xF5, 0xE2, 0xA0, 0x78, 0xB3, 0x69, 0x65, 0x00, 0x94, 0xDC, 0x44, 0x09, 0xA2,
  0x2B, 0x71, 0x15, 0x9E, 0x33, 0xE7, 0x8F, 0x72, 0x44, 0x83, 0xF6, 0xF4, 0x9C, 0xDE, 0xF0, 0xC1,
  0xAC, 0x60, 0x01, 0x79, 0x24, 0x9E, 0xC0, 0x82, 0x68, 0xA4, 0xE8, 0x70, 0xF0, 0xBD, 0x80, 0x99,
  0x1E, 0x5A, 0xB5, 0x08, 0x03, 0x62, 0xC7, 0x3D, 0xD1, 0xFE, 0x23, 0xA7, 0xF1, 0x01, 0x1A, 0x37,
  0x23, 0x27, 0x6D, 0x39, 0x63, 0x75, 0x35, 0x60, 0x6B, 0xD1, 0xD3, 0x77, 0xB1, 0xA2, 0xE4, 0x6A,
  0x0A, 0xD9, 0xD9, 0x42, 0x37, 0x97, 0x0C, 0x73, 0x97, 0x98, 0x55, 0xC2, 0x22, 0x5B, 0x62, 0x4E,
  0x1A, 0xBB, 0xFB, 0xAC, 0x91, 0xB0, 0x68, 0xAD, 0x78, 0x48, 0x45, 0x42, 0xEF, 0x80, 0xE7, 0xB0,
  0xC2, 0xA0, 0x03, 0x37, 0xBD, 0x12, 0xFD, 0x3A, 0x65, 0x76, 0xE6, 0xBC, 0xE7, 0x98, 0x79, 0x6F,
  0x18, 0x10, 0x9E, 0x67, 0x62, 0x3D, 0x1B, 0x41, 0x8E, 0x2D, 0x99, 0x87, 0x7D, 0x75, 0xBE, 0x49,
  0x6E, 0x43, 0xE2, 0x9F, 0x71, 0x29, 0x1F, 0x45, 0xB6, 0x2B, 0xAE, 0x3B, 0x78, 0xEF, 0x09, 0x4A,
  0xBD, 0x5F, 0xC1, 0x4C, 0xE5, 0x22, 0xD9, 0x17, 0x11, 0xCE, 0x39, 0xD7, 0x11, 0x3B, 0x13, 0xE8,
  0x9B, 0x8D, 0xDF, 0x9E, 0xCB, 0x96, 0xDD, 0xD7, 0xA8, 0x0D, 0x0F, 0xBE, 0x6F, 0xF2, 0xAC, 0xEF,
  0x0E, 0xA9, 0xFE, 0x0C, 0xC9, 0xF8, 0xC4, 0x55, 0x36, 0x3D, 0xEF, 0x30, 0xA7, 0x33, 0x7B, 0xB8,
  0x99, 0x05, 0xDE, 0xEF, 0xAA, 0xDA, 0xCB, 0xD7, 0x15, 0x30, 0xF4, 0xE3, 0xC8, 0x72, 0x25, 0x4A,
  0xBE, 0x1B, 0x35, 0x92, 0x92, 0xDD, 0x4B, 0x1C, 0xA0, 0x6F, 0x7C, 0xEF, 0x95, 0x12, 0x38, 0xFB,
  0xC8, 0x4E, 0x80, 0xB8, 0x06, 0xC6, 0x6F, 0xFC, 0x3A, 0xB4, 0x54, 0xCA, 0xC9, 0x8F, 0xE7, 0xB1,
  0xA3, 0x29, 0xEB, 0x06, 0xD7, 0xE8, 0xFB, 0x25, 0xD4, 0x30, 0x6A, 0x9C, 0xCC, 0x7C, 0xC7, 0x7E,
  0x1F, 0xA8, 0xA4, 0x23, 0x11, 0x9B, 0x9A, 0xBD, 0x9D, 0x2E, 0x8D, 0x5C, 0x67, 0x85, 0x5C, 0xBB,
  0xF5, 0x55, 0xC0, 0x11, 0x32, 0x67, 0x58, 0x2A, 0x24, 0xC2, 0xAA, 0x8E, 0x46, 0xC3, 0xDB, 0x5A,
  0xA7, 0x02, 0xA3, 0x3D, 0x76, 0x41, 0xED, 0xF4, 0x4C, 0x67, 0xC0, 0xB1, 0x8F, 0xDE, 0x27, 0x8A,
  0xF6, 0x53, 0x66, 0xA6, 0x7E, 0xF9, 0xB6, 0x8D, 0xAD, 0x63, 0xC8, 0x9C, 0x44, 0xA2, 0xD8, 0x22,
  0x26, 0x01, 0xD9, 0x2A, 0x7E, 0xA5, 0xE8, 0x73, 0xDB, 0x6C, 0xC0, 0xB6, 0xAC, 0x8F, 0xAC, 0x4B,
  0xC4, 0xD7, 0x98, 0xFF, 0x5A, 0x18, 0x4B, 0xCF, 0x38, 0xD1, 0x7E, 0x2D, 0xDB, 0xDD, 0x9C, 0x94,
  0x66, 0x72, 0x1A, 0xBA, 0x9A, 0x98, 0x92, 0x9B, 0x16, 0x32, 0x2E, 0xF1, 0x9A, 0x83, 0x62, 0x3E,
  0x2D, 0x17, 0x64, 0xBF, 0xA5, 0x27, 0xA1, 0xE7, 0xAF, 0xB5, 0xD4, 0x68, 0x3E, 0x06, 0x68, 0xDA,
  0xF6, 0x7C, 0x5E, 0x47, 0x0E, 0x50, 0x63, 0x70, 0xDE, 0xF4, 0x2F, 0x42, 0x22, 0x32, 0x2A, 0xF6,
  0x8A, 0xEE, 0x33, 0x43, 0x37, 0x46, 0x46, 0x39, 0x37, 0x32, 0x2D, 0x30, 0x34, 0x30, 0x45, 0x2D,
  0x34, 0x39, 0x31, 0x35, 0x2D, 0x41, 0x38, 0x33, 0x44, 0x2D, 0x41, 0x39, 0x36, 0x34, 0x36, 0x39,
  0x30, 0x44, 0x44, 0x43, 0x43, 0x38, 0x4B, 0xB6, 0xEA, 0x1E, 0x22, 0x3A, 0xEE, 0x83, 0x7E, 0xBE,
  0xA9, 0xA4, 0x26, 0x8C, 0x37, 0x00, 0xA1, 0x1A, 0xC4, 0xC1, 0xA1, 0x00, 0xF5, 0x8A, 0x7A, 0xFB,
  0x2B, 0x45, 0x70, 0xE4, 0xB5, 0x45, 0xAA, 0x00
};

void test_homekit(void)
{
  extern srp_keys_t srp;
  extern crypto_keys_t crypto_keys;

  return;

  LOG_LV2_BUFFER("Private b", srp.b, 32);
  LOG_LV2_BUFFER("Salt s", srp.salt, 16);
  LOG_LV2_BUFFER("Verifier v", srp.v, 384);
  LOG_LV2_BUFFER("Public B", srp.B, 384);
  
  LOG_LV2_BUFFER("Sign Secret", crypto_keys.sign.secret, 64);
  
  LOG_LV2_BUFFER("Client Name", crypto_keys.client.name, 36);
  LOG_LV2_BUFFER("Client ltpk", crypto_keys.client.ltpk, 32);    
}

void setup() 
{
  Serial.begin(115200);
  while ( !Serial ) delay(10);   // for nrf52840 with native usb

  Serial.println("Bluefruit52 Homekit Light Bulb Example");
  Serial.println("--------------------------------------\n");

  // Homekit uses a lot of characteristics so that default Attr Table size
  // is not enough. Therefore we need to incresae the ATTR Table Size
  // Note: All config***() function must be called before begin()
  Bluefruit.configAttrTableSize(3000);

  // Config the peripheral connection with maximum bandwidth
  Bluefruit.configPrphBandwidth(BANDWIDTH_MAX);

  Bluefruit.begin();
  
  // Set max power. Accepted values are: -40, -30, -20, -16, -12, -8, -4, 0, 4
  Bluefruit.setTxPower(4);
  Bluefruit.setName("Bluefruit52");

  //InternalFS.remove(CRYPTO_KEYFILE);
  //File file(CRYPTO_KEYFILE, FILE_WRITE, InternalFS);
  //file.write(&test_keys, sizeof(test_keys));
  //file.close();
  
  homekit.begin();

  test_homekit();

  // Set up and start advertising
  startAdv();
}

void startAdv(void)
{  
  /* Start Advertising
   * - Enable auto advertising if disconnected
   * - Interval:  fast mode = 20 ms, slow mode = 152.5 ms
   * - Timeout for fast mode is 30 seconds
   * - Start(timeout) with timeout = 30
   * 
   * For recommended advertising interval
   * https://developer.apple.com/library/content/qa/qa1931/_index.html   
   */
  Bluefruit.Advertising.restartOnDisconnect(true);
  Bluefruit.Advertising.setInterval(32, 244);    // in unit of 0.625 ms
  Bluefruit.Advertising.setFastTimeout(30);      // number of seconds in fast mode
  Bluefruit.Advertising.setStopCallback(adv_stop_callback); // callback when adv is stopped

  /* Homekit include advertising interval as part of its adv data
   * - Therefore setInterval() must be call before setData(homekit).
   * - Furthermore since Adverting Data (for homekit) changes when adv interval change
   * from fast to slow. We do either way to stay consistence
   *    1. Advertise with fixed interval (fast = slow)
   *    2. Register stop callback for adv stop, then re-set the Advertising data to match
   *    the changed interval. Which is what this sketch does.
   */
  Bluefruit.Advertising.setData(homekit);

  // Stop after 30 secconds
  Bluefruit.Advertising.start(30);
}

void adv_stop_callback(void)
{
  // change interval to only slow since we alredy passed first 30 seconds
  Bluefruit.Advertising.setInterval(244, 244);

  // Reset advertising data for homekit.
  Bluefruit.Advertising.clearData();
  Bluefruit.Advertising.setData(homekit);

  // Advertising indefintely.
  Bluefruit.Advertising.start(0);
}

void loop() 
{
  // Toggle both LEDs every 1 second
  digitalToggle(LED_RED);
  delay(1000);
}