#include <FastLED.h>
#include <ESP8266WiFi.h>
//#include <ArduinoOTA.h>

FASTLED_USING_NAMESPACE


#if defined(FASTLED_VERSION) && (FASTLED_VERSION < 3001000)
#warning "Requires FastLED 3.1 or later; check github for latest code."
#endif

#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))

#define DATA_PIN    2
//#define CLK_PIN   4
#define LED_TYPE    WS2812B
#define COLOR_ORDER GRB
#define NUM_LEDS    96
CRGB leds[NUM_LEDS];

int BRIGHTNESS = 0;
#define FRAMES_PER_SECOND  120

const char *ssid = "Limettenporsche";
const char *pass = "W!r3l355";

WiFiServer server(80);

void rainbow();
void stat();
void rainbowWithGlitter();
void confetti();
void sinelon();
void juggle();
void bpm();
void nope();
void noperb();
void die();
// List of patterns to cycle through.  Each is defined as a separate function below.
typedef void (*SimplePatternList[])();
SimplePatternList gPatterns = { rainbow, stat, rainbowWithGlitter, confetti, sinelon, juggle, bpm, nope, noperb, die};

uint8_t gCurrentPatternNumber = 0; // Index number of which pattern is current
uint8_t gHue = 0; // rotating "base color" used by many of the patterns
int oneColor = 0;

void setup() {
  delay(3000); // 3 second delay for recovery

  Serial.begin(115200);
  Serial.println();
  Serial.println("Configuring access point...");

  WiFi.mode(WIFI_AP_STA);
  WiFi.softAP(ssid, pass);
  IPAddress myIP = WiFi.softAPIP();

  Serial.print("AP IP Address: ");
  Serial.println(myIP);

  server.begin();

//    ArduinoOTA.onStart([]() {
//    String type;
//    if (ArduinoOTA.getCommand() == U_FLASH)
//      type = "sketch";
//    else // U_SPIFFS
//      type = "filesystem";
//
//    // NOTE: if updating SPIFFS this would be the place to unmount SPIFFS using SPIFFS.end()
//    Serial.println("Start updating " + type);
//  });
//  ArduinoOTA.onEnd([]() {
//    Serial.println("\nEnd");
//  });
//  ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
//    Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
//  });
//  ArduinoOTA.onError([](ota_error_t error) {
//    Serial.printf("Error[%u]: ", error);
//    if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed");
//    else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed");
//    else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed");
//    else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed");
//    else if (error == OTA_END_ERROR) Serial.println("End Failed");
//  });
//  ArduinoOTA.begin();

  // tell FastLED about the LED strip configuration
  FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  //FastLED.addLeds<LED_TYPE,DATA_PIN,CLK_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);

  // set master brightness control
  FastLED.setBrightness(BRIGHTNESS);
}

void loop()
{
   //ArduinoOTA.handle();
  // Call the current pattern function once, updating the 'leds' array
  gPatterns[gCurrentPatternNumber]();

  // send the 'leds' array out to the actual LED strip
  FastLED.show();
  // insert a delay to keep the framerate modest

  // do some periodic updates
  if(!oneColor){ {
      gHue++;  // slowly cycle the "base color" through the rainbow
    }
  }

  WiFiClient client = server.available();
  if (!client) {
    delay(20);
    return;
  }
  int i = 0;
  int bytes = client.available();
  while (!bytes) {
    bytes = client.available();
    i++;
    delay(1);
    if (i > 100) return; //timeout after 100 ms
  }


  char c;
  c = char(client.read());
  String line = "";
  String req = "";
  bytes--;
  if (c == 'P') { //it's probably a post request, process it
    while (bytes) {
      //we get the last line of the request
      c = char(client.read());
      line += c;
      if (c == '\n') {
        Serial.println("Line was");
        Serial.println(line);
        req = line;
        line = "";
      }
      bytes--;
    }
  }
  int command = line.toInt();
  Serial.println("\nGot Data:");
  Serial.println(req);
  Serial.println("\nGot Command");
  Serial.println(command);
  client.flush();

  if (command) {
    gCurrentPatternNumber = (command - 1) % ARRAY_SIZE( gPatterns ); //the modulo is just for safety
  }
  else{
    switch(line[0]){
      case 'a':
        Serial.println("toggling color-rainbow mode");
        oneColor = 1-oneColor;
        break;
      case 'r':
        gHue = 0; //red
        break;
      case 'g':
        gHue = 96; //green
        break;
      case 'b':
        gHue = 160; //blue
        break;
      case 'y':
        gHue = 64; //yellow
        break;
      case 'v':
        gHue = 200; //violet
        break;
      case 'c':
        gHue = 128; //cyan
        break;
      case 'h':
      BRIGHTNESS = 255;
          FastLED.setBrightness(BRIGHTNESS);
        break;
      case 'm':
      BRIGHTNESS = 127;
          FastLED.setBrightness(BRIGHTNESS);
        break;
       case 'l':
       BRIGHTNESS = 0;
          FastLED.setBrightness(BRIGHTNESS);
        break;
    }
  }

  //prepare a response
  String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r\n";
  s += "<form action = '' method = 'post'>";
  s += "<input type='submit' name='r' value='red' /><br />\n";
  s += "<input type='submit' name='g' value='green' /><br />\n";
  s += "<input type='submit' name='b' value='blue' /><br />\n";
  s += "<input type='submit' name='y' value='yellow' /><br />\n";
  s += "<input type='submit' name='v' value='violet' /><br />\n";
  s += "<input type='submit' name='c' value='cyan' /><br />\n";
  s += "<input type='submit' name='a' value='Toggle Rainbow Colors' /><br />\n";
  s += "<input type='submit' name='1' value='Solid/Rainbow'/><br />\n";
  s += "<input type='submit' name='2' value='Solid/Rainbow with Glitter'/><br />\n";
  s += "<input type='submit' name='3' value='Confetti'/><br />\n";
  s += "<input type='submit' name='4' value='Sinelon'/><br />\n";
  s += "<input type='submit' name='5' value='Juggle'/><br />\n";
  s += "<input type='submit' name='6' value='BPM'/><br />\n";
  s += "<input type='submit' name='7' value='kill me'/><br />\n";
  s += "<input type='submit' name='8' value='kill me US edition'/><br />\n";
  s += "<input type='submit' name='9' value='kill others'/><br />\n";
  s += "<input type='submit' name='h' value='On'/><br />\n";
  s += "<input type='submit' name='m' value='Half'/><br />\n";
  s += "<input type='submit' name='l' value='Off'/><br />\n";
  s += "</form>";
  s += "<p>Last Command Was ";
  s += line;
  s += "</p>\n";
  s += "</html>";

  client.print(s);
  delay(1);


  //EVERY_N_SECONDS( 10 ) {
  //  nextPattern();  // change patterns periodically
  //}
}



void nextPattern()
{
  // add one to the current pattern number, and wrap around at the end
  gCurrentPatternNumber = (gCurrentPatternNumber + 1) % ARRAY_SIZE( gPatterns);
}

void rainbow()
{
  if(oneColor){
    fill_solid( leds, NUM_LEDS, CHSV(gHue, 200, 255));
  }
  else{
    // FastLED's built-in rainbow generator
    fill_rainbow( leds, NUM_LEDS, gHue, 7);
  }
}


void rainbowWithGlitter()
{
  // built-in FastLED rainbow, plus some random sparkly glitter
  rainbow();
  addGlitter(80);
}

void addGlitter( fract8 chanceOfGlitter)
{
  if ( random8() < chanceOfGlitter) {
    leds[ random16(NUM_LEDS) ] += CRGB::White;
  }
}

void confetti()
{
  // random colored speckles that blink in and fade smoothly
  fadeToBlackBy( leds, NUM_LEDS, 10);
  int pos = random16(NUM_LEDS);
  if(!oneColor){
    leds[pos] += CHSV( gHue + random8(64), 200, 255);
  }
  else{
    leds[pos] += CHSV( gHue, 200, 255);
  }
}

void sinelon()
{
  // a colored dot sweeping back and forth, with fading trails
  fadeToBlackBy( leds, NUM_LEDS, 50);
  int pos = beatsin88( 2600, 0, NUM_LEDS - 1 );
  leds[pos] += CHSV( gHue, 255, 192);
}

void bpm()
{
  // colored stripes pulsing at a defined Beats-Per-Minute (BPM)
  uint8_t BeatsPerMinute = 120;
  CRGBPalette16 palette = PartyColors_p;
  uint8_t beat = beatsin8( BeatsPerMinute, 64, 255);
  for ( int i = 0; i < NUM_LEDS; i++) { //9948
    leds[i] = ColorFromPalette(palette, gHue + (i * 2), beat - gHue + (i * 10));
  }
}

void juggle() {
  // eight colored dots, weaving in and out of sync with each other
  fadeToBlackBy( leds, NUM_LEDS, 20);
  byte dothue = gHue;
  for ( int i = 0; i < 8; i++) {
    leds[beatsin16( i + 7, 0, NUM_LEDS - 1 )] |= CHSV(dothue, 200, 255);
    if(!oneColor)
    {
      dothue += 32;
    }
  }
}

void nope()
{
  allblue();
  delay(20);
  allblack();
  delay(40);
  allblue();
  delay(20);
  allblack();
  delay(200);
  allblue();
  delay(20);
  allblack();
  delay(40);
  allblue();
  delay(20);
  allblack();
  delay(600);
}

void noperb()
{
  allblue();
  delay(20);
  allblack();
  delay(40);
  allblue();
  delay(20);
  allblack();
  delay(200);
  allred();
  delay(20);
  allblack();
  delay(40);
  allred();
  delay(20);
  allblack();
  delay(600);
}
void die()
{
  allred();
  delay(40);
  allblue();
  delay(40);
}

void allblack()
{
  for (int dot = 0; dot < NUM_LEDS; dot++)
  {
    leds[dot] = CRGB::Black;
  }
  FastLED.show();
}

void allblue()
{
  for (int dot = 0; dot < NUM_LEDS; dot++)
  {
    leds[dot] = CRGB::Blue;
  }
  FastLED.show();
}

void allred()
{
  for (int dot = 0; dot < NUM_LEDS; dot++)
  {
    leds[dot] = CRGB::Red;
  }
  FastLED.show();
}